./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.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_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 16:04:20,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:04:20,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:04:20,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:04:20,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:04:20,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:04:20,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:04:20,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:04:20,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:04:20,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:04:20,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:04:20,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:04:20,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:04:20,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:04:20,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:04:20,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:04:20,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:04:20,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:04:20,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:04:20,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:04:20,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:04:20,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:04:20,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:04:20,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:04:20,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:04:20,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:04:20,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:04:20,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:04:20,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:04:20,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:04:20,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:04:20,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:04:20,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:04:20,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:04:20,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:04:20,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:04:20,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:04:20,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:04:20,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:04:20,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:04:20,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:04:20,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 16:04:20,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:04:20,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:04:20,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:04:20,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:04:20,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:04:20,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:04:20,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:04:20,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:04:20,651 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:04:20,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:04:20,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:04:20,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:04:20,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:04:20,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:04:20,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:04:20,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:04:20,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:04:20,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:04:20,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:04:20,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:04:20,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:04:20,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:04:20,655 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2022-12-13 16:04:20,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:04:20,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:04:20,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:04:20,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:04:20,881 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:04:20,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-13 16:04:23,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:04:23,826 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:04:23,827 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-13 16:04:23,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/data/9eb776f16/2822765e838b4cf5b4040fd3ce2fa5d2/FLAG0350e6005 [2022-12-13 16:04:23,867 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/data/9eb776f16/2822765e838b4cf5b4040fd3ce2fa5d2 [2022-12-13 16:04:23,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:04:23,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:04:23,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:04:23,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:04:23,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:04:23,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:04:23" (1/1) ... [2022-12-13 16:04:23,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0bf51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:23, skipping insertion in model container [2022-12-13 16:04:23,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:04:23" (1/1) ... [2022-12-13 16:04:23,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:04:24,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:04:24,873 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 16:04:24,882 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-13 16:04:24,995 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 16:04:25,012 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 16:04:25,020 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 16:04:25,054 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 16:04:25,118 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 16:04:25,119 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 16:04:25,120 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 16:04:25,120 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-13 16:04:25,125 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 16:04:25,125 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 16:04:25,126 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 16:04:25,126 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-13 16:04:25,133 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:25,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,451 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-12-13 16:04:25,452 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-12-13 16:04:25,492 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-12-13 16:04:25,498 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-12-13 16:04:25,502 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-12-13 16:04:25,508 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-12-13 16:04:25,524 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-13 16:04:25,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,526 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,547 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-12-13 16:04:25,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,553 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:25,553 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,554 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,559 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 16:04:25,564 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-12-13 16:04:25,565 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-12-13 16:04:25,565 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:25,566 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-13 16:04:25,566 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-12-13 16:04:25,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,577 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-12-13 16:04:25,577 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,595 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-12-13 16:04:25,599 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,610 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,618 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,619 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,620 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:25,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,621 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:25,627 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-13 16:04:25,628 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:25,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,629 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:25,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,630 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:25,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,632 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-13 16:04:25,633 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-12-13 16:04:25,634 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-13 16:04:25,635 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-13 16:04:25,636 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-13 16:04:25,637 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,673 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 16:04:25,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,689 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-13 16:04:25,695 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-12-13 16:04:25,695 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-12-13 16:04:25,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,699 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,699 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,699 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,709 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 16:04:25,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,713 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:25,713 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:25,714 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:25,716 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-12-13 16:04:25,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,717 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-12-13 16:04:25,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,718 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:25,718 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:25,719 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:25,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,720 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 16:04:25,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,721 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-13 16:04:25,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,729 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 16:04:25,729 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-13 16:04:25,730 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-12-13 16:04:25,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,742 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 16:04:25,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,743 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-13 16:04:25,744 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,745 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 16:04:25,746 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:25,747 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:25,747 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:25,748 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,748 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:25,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,750 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-12-13 16:04:25,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:25,977 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-12-13 16:04:26,000 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 16:04:26,005 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-12-13 16:04:26,006 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-12-13 16:04:26,007 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 16:04:26,007 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 16:04:26,008 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:26,008 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:26,010 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:26,011 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-13 16:04:26,405 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 16:04:26,550 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-13 16:04:26,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-12-13 16:04:26,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-12-13 16:04:26,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-12-13 16:04:26,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-12-13 16:04:26,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-12-13 16:04:26,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-12-13 16:04:26,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-12-13 16:04:26,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-12-13 16:04:26,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-12-13 16:04:26,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-12-13 16:04:26,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-12-13 16:04:26,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-12-13 16:04:26,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-12-13 16:04:26,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-12-13 16:04:26,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-12-13 16:04:26,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-12-13 16:04:26,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-12-13 16:04:26,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-12-13 16:04:26,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-12-13 16:04:26,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-12-13 16:04:26,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-12-13 16:04:26,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-12-13 16:04:26,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-12-13 16:04:26,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-12-13 16:04:26,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-12-13 16:04:26,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-12-13 16:04:26,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-12-13 16:04:26,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-12-13 16:04:26,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-12-13 16:04:26,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-12-13 16:04:26,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-12-13 16:04:26,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-12-13 16:04:26,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-12-13 16:04:26,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-12-13 16:04:26,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-12-13 16:04:26,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-12-13 16:04:26,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-12-13 16:04:26,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-12-13 16:04:26,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-12-13 16:04:26,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-12-13 16:04:26,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-12-13 16:04:26,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-12-13 16:04:26,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-12-13 16:04:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-12-13 16:04:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-12-13 16:04:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-12-13 16:04:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-12-13 16:04:26,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-12-13 16:04:26,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-12-13 16:04:26,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-12-13 16:04:26,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-12-13 16:04:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-12-13 16:04:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-12-13 16:04:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-12-13 16:04:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-12-13 16:04:26,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-12-13 16:04:26,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-12-13 16:04:26,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-12-13 16:04:26,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-12-13 16:04:27,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-12-13 16:04:27,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-12-13 16:04:27,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-12-13 16:04:27,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-12-13 16:04:27,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-12-13 16:04:27,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-12-13 16:04:27,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-12-13 16:04:27,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-12-13 16:04:27,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-12-13 16:04:27,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-12-13 16:04:27,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-12-13 16:04:27,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-12-13 16:04:27,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-12-13 16:04:27,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-12-13 16:04:27,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-12-13 16:04:27,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-12-13 16:04:27,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-12-13 16:04:27,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-12-13 16:04:27,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-12-13 16:04:27,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-12-13 16:04:27,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-12-13 16:04:27,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-12-13 16:04:27,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-12-13 16:04:27,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-12-13 16:04:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-12-13 16:04:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-12-13 16:04:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-12-13 16:04:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-12-13 16:04:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-12-13 16:04:27,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:04:27,034 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:04:27,088 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 16:04:27,088 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-13 16:04:27,090 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 16:04:27,090 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 16:04:27,091 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 16:04:27,092 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 16:04:27,093 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 16:04:27,093 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 16:04:27,093 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 16:04:27,094 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-13 16:04:27,094 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 16:04:27,094 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 16:04:27,094 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 16:04:27,095 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-13 16:04:27,097 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:27,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,111 WARN L623 FunctionHandler]: Unknown extern function vmalloc_to_pfn [2022-12-13 16:04:27,111 WARN L623 FunctionHandler]: Unknown extern function remap_pfn_range [2022-12-13 16:04:27,122 WARN L623 FunctionHandler]: Unknown extern function fb_sys_write [2022-12-13 16:04:27,122 WARN L623 FunctionHandler]: Unknown extern function sys_copyarea [2022-12-13 16:04:27,123 WARN L623 FunctionHandler]: Unknown extern function sys_imageblit [2022-12-13 16:04:27,123 WARN L623 FunctionHandler]: Unknown extern function sys_fillrect [2022-12-13 16:04:27,126 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-13 16:04:27,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,127 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,131 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_init [2022-12-13 16:04:27,131 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,132 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:27,132 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,132 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,133 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 16:04:27,133 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-12-13 16:04:27,134 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-12-13 16:04:27,134 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:27,134 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-13 16:04:27,134 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-12-13 16:04:27,134 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,135 WARN L623 FunctionHandler]: Unknown extern function fb_deferred_io_cleanup [2022-12-13 16:04:27,135 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,137 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,153 WARN L623 FunctionHandler]: Unknown extern function fb_var_to_videomode [2022-12-13 16:04:27,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,161 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:27,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,162 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-13 16:04:27,163 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modelist [2022-12-13 16:04:27,164 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:27,164 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,165 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:27,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,166 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-12-13 16:04:27,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,167 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-13 16:04:27,168 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-12-13 16:04:27,170 WARN L623 FunctionHandler]: Unknown extern function fb_add_videomode [2022-12-13 16:04:27,171 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-13 16:04:27,171 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-13 16:04:27,172 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,178 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 16:04:27,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,183 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-13 16:04:27,184 WARN L623 FunctionHandler]: Unknown extern function usb_get_descriptor [2022-12-13 16:04:27,184 WARN L623 FunctionHandler]: Unknown extern function __usb_get_extra_descriptor [2022-12-13 16:04:27,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,187 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,188 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,190 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 16:04:27,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,193 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:27,193 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:27,194 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:27,195 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-12-13 16:04:27,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,196 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-12-13 16:04:27,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,197 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:27,197 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:27,197 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:27,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,199 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 16:04:27,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,199 WARN L623 FunctionHandler]: Unknown extern function device_create_bin_file [2022-12-13 16:04:27,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,201 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 16:04:27,202 WARN L623 FunctionHandler]: Unknown extern function device_remove_bin_file [2022-12-13 16:04:27,202 WARN L623 FunctionHandler]: Unknown extern function unlink_framebuffer [2022-12-13 16:04:27,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,209 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 16:04:27,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,209 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-13 16:04:27,210 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,211 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 16:04:27,214 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 16:04:27,215 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 16:04:27,215 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 16:04:27,216 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,216 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 16:04:27,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,218 WARN L623 FunctionHandler]: Unknown extern function down_timeout [2022-12-13 16:04:27,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 16:04:27,225 WARN L623 FunctionHandler]: Unknown extern function fb_sys_read [2022-12-13 16:04:27,241 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 16:04:27,241 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-12-13 16:04:27,242 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-12-13 16:04:27,242 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 16:04:27,243 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 16:04:27,243 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:27,243 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:27,244 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:27,245 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-13 16:04:27,258 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-13 16:04:27,265 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-13 16:04:27,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-12-13 16:04:27,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-12-13 16:04:27,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-12-13 16:04:27,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-12-13 16:04:27,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-12-13 16:04:27,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-12-13 16:04:27,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-12-13 16:04:27,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-12-13 16:04:27,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-12-13 16:04:27,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-12-13 16:04:27,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-12-13 16:04:27,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-12-13 16:04:27,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-12-13 16:04:27,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-12-13 16:04:27,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-12-13 16:04:27,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-12-13 16:04:27,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-12-13 16:04:27,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-12-13 16:04:27,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-12-13 16:04:27,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-12-13 16:04:27,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-12-13 16:04:27,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-12-13 16:04:27,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-12-13 16:04:27,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-12-13 16:04:27,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-12-13 16:04:27,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-12-13 16:04:27,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-12-13 16:04:27,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-12-13 16:04:27,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-12-13 16:04:27,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-12-13 16:04:27,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-12-13 16:04:27,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-12-13 16:04:27,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-12-13 16:04:27,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-12-13 16:04:27,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-12-13 16:04:27,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-12-13 16:04:27,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-12-13 16:04:27,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-12-13 16:04:27,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-12-13 16:04:27,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-12-13 16:04:27,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-12-13 16:04:27,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-12-13 16:04:27,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-12-13 16:04:27,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-12-13 16:04:27,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-12-13 16:04:27,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-12-13 16:04:27,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-12-13 16:04:27,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-12-13 16:04:27,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-12-13 16:04:27,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-12-13 16:04:27,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-12-13 16:04:27,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-12-13 16:04:27,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-12-13 16:04:27,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-12-13 16:04:27,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-12-13 16:04:27,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-12-13 16:04:27,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-12-13 16:04:27,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-12-13 16:04:27,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-12-13 16:04:27,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-12-13 16:04:27,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-12-13 16:04:27,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-12-13 16:04:27,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-12-13 16:04:27,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-12-13 16:04:27,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-12-13 16:04:27,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-12-13 16:04:27,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-12-13 16:04:27,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-12-13 16:04:27,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-12-13 16:04:27,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-12-13 16:04:27,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-12-13 16:04:27,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-12-13 16:04:27,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-12-13 16:04:27,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-12-13 16:04:27,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-12-13 16:04:27,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-12-13 16:04:27,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-12-13 16:04:27,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-12-13 16:04:27,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-12-13 16:04:27,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-12-13 16:04:27,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-12-13 16:04:27,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-12-13 16:04:27,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-12-13 16:04:27,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-12-13 16:04:27,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-12-13 16:04:27,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-12-13 16:04:27,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-12-13 16:04:27,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-12-13 16:04:27,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:04:27,437 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:04:27,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27 WrapperNode [2022-12-13 16:04:27,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:04:27,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:04:27,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:04:27,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:04:27,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,640 INFO L138 Inliner]: procedures = 635, calls = 2089, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4943 [2022-12-13 16:04:27,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:04:27,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:04:27,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:04:27,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:04:27,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:04:27,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:04:27,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:04:27,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:04:27,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (1/1) ... [2022-12-13 16:04:27,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:04:27,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:04:27,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:04:27,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:04:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-13 16:04:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-13 16:04:27,982 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-12-13 16:04:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-12-13 16:04:27,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-13 16:04:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-13 16:04:27,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 16:04:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 16:04:27,982 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-12-13 16:04:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-12-13 16:04:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-12-13 16:04:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-12-13 16:04:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 16:04:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 16:04:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-13 16:04:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-13 16:04:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-13 16:04:27,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-13 16:04:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-12-13 16:04:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-12-13 16:04:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-13 16:04:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-13 16:04:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-13 16:04:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-13 16:04:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2022-12-13 16:04:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2022-12-13 16:04:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 16:04:27,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-13 16:04:27,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-12-13 16:04:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-13 16:04:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-13 16:04:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-12-13 16:04:27,985 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:04:27,985 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-12-13 16:04:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-12-13 16:04:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-12-13 16:04:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-12-13 16:04:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 16:04:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 16:04:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-12-13 16:04:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-12-13 16:04:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-13 16:04:27,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-13 16:04:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-12-13 16:04:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-13 16:04:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 16:04:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-13 16:04:27,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-13 16:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-13 16:04:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-13 16:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-12-13 16:04:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-12-13 16:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-13 16:04:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-13 16:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:04:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-13 16:04:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-13 16:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-13 16:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-13 16:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-12-13 16:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-12-13 16:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 16:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 16:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-13 16:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-13 16:04:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-12-13 16:04:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-12-13 16:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-13 16:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-13 16:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-13 16:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-13 16:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-13 16:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-13 16:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-13 16:04:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-13 16:04:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-13 16:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-13 16:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-13 16:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-12-13 16:04:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:04:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 16:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 16:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 16:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 16:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 16:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-13 16:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-13 16:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-12-13 16:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-12-13 16:04:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-13 16:04:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-13 16:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-12-13 16:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-12-13 16:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-13 16:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-13 16:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-12-13 16:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-12-13 16:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-13 16:04:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-13 16:04:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-13 16:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-13 16:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-13 16:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-13 16:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-12-13 16:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-12-13 16:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-12-13 16:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-12-13 16:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-13 16:04:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-13 16:04:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:04:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-13 16:04:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-12-13 16:04:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 16:04:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 16:04:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-13 16:04:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-13 16:04:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-12-13 16:04:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-12-13 16:04:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-12-13 16:04:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-12-13 16:04:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-12-13 16:04:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-12-13 16:04:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-12-13 16:04:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-12-13 16:04:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-13 16:04:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-13 16:04:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-12-13 16:04:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-12-13 16:04:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-13 16:04:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-13 16:04:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-13 16:04:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-13 16:04:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 16:04:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 16:04:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-12-13 16:04:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-12-13 16:04:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-12-13 16:04:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-12-13 16:04:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2022-12-13 16:04:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2022-12-13 16:04:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-12-13 16:04:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-12-13 16:04:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-13 16:04:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-13 16:04:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-13 16:04:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-13 16:04:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-12-13 16:04:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-12-13 16:04:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-13 16:04:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-13 16:04:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:04:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 16:04:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 16:04:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-13 16:04:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-13 16:04:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-12-13 16:04:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-12-13 16:04:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-12-13 16:04:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-12-13 16:04:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 16:04:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-12-13 16:04:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-12-13 16:04:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 16:04:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-13 16:04:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-13 16:04:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 16:04:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 16:04:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-13 16:04:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-13 16:04:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-13 16:04:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-13 16:04:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-13 16:04:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-13 16:04:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-13 16:04:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-13 16:04:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-13 16:04:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-13 16:04:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-13 16:04:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-13 16:04:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-13 16:04:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-13 16:04:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-13 16:04:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-13 16:04:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 16:04:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 16:04:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-13 16:04:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-13 16:04:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 16:04:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 16:04:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-13 16:04:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-13 16:04:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-12-13 16:04:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-12-13 16:04:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:04:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-12-13 16:04:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-12-13 16:04:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-12-13 16:04:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-12-13 16:04:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-13 16:04:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-13 16:04:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2022-12-13 16:04:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2022-12-13 16:04:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 16:04:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 16:04:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-13 16:04:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-13 16:04:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-12-13 16:04:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-12-13 16:04:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-13 16:04:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-13 16:04:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-13 16:04:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-13 16:04:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-12-13 16:04:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-12-13 16:04:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2022-12-13 16:04:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2022-12-13 16:04:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2022-12-13 16:04:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2022-12-13 16:04:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-12-13 16:04:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-12-13 16:04:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-12-13 16:04:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:04:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2022-12-13 16:04:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2022-12-13 16:04:28,595 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:04:28,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:04:28,780 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 16:04:37,547 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:04:37,560 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:04:37,560 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:04:37,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:04:37 BoogieIcfgContainer [2022-12-13 16:04:37,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:04:37,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:04:37,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:04:37,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:04:37,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:04:23" (1/3) ... [2022-12-13 16:04:37,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250d070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:04:37, skipping insertion in model container [2022-12-13 16:04:37,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:04:27" (2/3) ... [2022-12-13 16:04:37,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250d070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:04:37, skipping insertion in model container [2022-12-13 16:04:37,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:04:37" (3/3) ... [2022-12-13 16:04:37,570 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-12-13 16:04:37,585 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:04:37,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-13 16:04:37,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:04:37,659 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=PETRI_NET, 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;@5ca30701, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:04:37,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-13 16:04:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1734 states, 1158 states have (on average 1.268566493955095) internal successors, (1469), 1235 states have internal predecessors, (1469), 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) [2022-12-13 16:04:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 16:04:37,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:37,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:04:37,680 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)] === [2022-12-13 16:04:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1745880891, now seen corresponding path program 1 times [2022-12-13 16:04:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:04:37,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665987114] [2022-12-13 16:04:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:04:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:04:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:04:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:04:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:04:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:04:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:04:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:04:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:04:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:04:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:04:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:04:38,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:04:38,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665987114] [2022-12-13 16:04:38,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665987114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:38,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:38,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:04:38,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126714260] [2022-12-13 16:04:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:38,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:04:38,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:04:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:04:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:04:38,447 INFO L87 Difference]: Start difference. First operand has 1734 states, 1158 states have (on average 1.268566493955095) internal successors, (1469), 1235 states have internal predecessors, (1469), 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 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 16:04:43,660 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 [] [2022-12-13 16:04:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:46,591 INFO L93 Difference]: Finished difference Result 3418 states and 4687 transitions. [2022-12-13 16:04:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:04:46,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 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 71 [2022-12-13 16:04:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:46,608 INFO L225 Difference]: With dead ends: 3418 [2022-12-13 16:04:46,608 INFO L226 Difference]: Without dead ends: 1713 [2022-12-13 16:04:46,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:04:46,619 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 3762 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 3676 mSolverCounterSat, 1807 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3934 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 5484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1807 IncrementalHoareTripleChecker+Valid, 3676 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:46,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3934 Valid, 1913 Invalid, 5484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1807 Valid, 3676 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-13 16:04:46,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-12-13 16:04:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2022-12-13 16:04:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1148 states have (on average 1.2317073170731707) internal successors, (1414), 1217 states have internal predecessors, (1414), 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) [2022-12-13 16:04:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2250 transitions. [2022-12-13 16:04:46,758 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2250 transitions. Word has length 71 [2022-12-13 16:04:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:46,759 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2250 transitions. [2022-12-13 16:04:46,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 16:04:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2250 transitions. [2022-12-13 16:04:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 16:04:46,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:46,761 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:04:46,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:04:46,762 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)] === [2022-12-13 16:04:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1479345889, now seen corresponding path program 1 times [2022-12-13 16:04:46,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:04:46,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609462491] [2022-12-13 16:04:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:04:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:04:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:04:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:04:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:04:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:04:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:04:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:04:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:04:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:04:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:04:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:04:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:04:47,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:04:47,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609462491] [2022-12-13 16:04:47,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609462491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:47,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:47,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:04:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685729449] [2022-12-13 16:04:47,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:47,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:04:47,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:04:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:04:47,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:04:47,151 INFO L87 Difference]: Start difference. First operand 1713 states and 2250 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 16:04:52,273 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 [] [2022-12-13 16:04:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:54,949 INFO L93 Difference]: Finished difference Result 1713 states and 2250 transitions. [2022-12-13 16:04:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:04:54,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 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 77 [2022-12-13 16:04:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:54,955 INFO L225 Difference]: With dead ends: 1713 [2022-12-13 16:04:54,955 INFO L226 Difference]: Without dead ends: 1711 [2022-12-13 16:04:54,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:04:54,957 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3721 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3890 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:54,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3890 Valid, 1869 Invalid, 5441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3650 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 16:04:54,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-12-13 16:04:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2022-12-13 16:04:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1147 states have (on average 1.2310374891020053) internal successors, (1412), 1215 states have internal predecessors, (1412), 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) [2022-12-13 16:04:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2248 transitions. [2022-12-13 16:04:55,023 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2248 transitions. Word has length 77 [2022-12-13 16:04:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:55,024 INFO L495 AbstractCegarLoop]: Abstraction has 1711 states and 2248 transitions. [2022-12-13 16:04:55,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 16:04:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2248 transitions. [2022-12-13 16:04:55,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 16:04:55,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:55,026 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:04:55,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:04:55,027 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)] === [2022-12-13 16:04:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:55,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1755860172, now seen corresponding path program 1 times [2022-12-13 16:04:55,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:04:55,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245278927] [2022-12-13 16:04:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:55,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:04:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:04:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:04:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:04:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:04:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:04:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:04:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:04:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:04:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:04:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:04:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:04:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:04:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:04:55,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:04:55,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245278927] [2022-12-13 16:04:55,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245278927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:55,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:55,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:04:55,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985478691] [2022-12-13 16:04:55,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:55,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:04:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:04:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:04:55,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:04:55,456 INFO L87 Difference]: Start difference. First operand 1711 states and 2248 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 16:04:59,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:01,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:04,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:04,889 INFO L93 Difference]: Finished difference Result 1711 states and 2248 transitions. [2022-12-13 16:05:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:05:04,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 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 83 [2022-12-13 16:05:04,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:04,895 INFO L225 Difference]: With dead ends: 1711 [2022-12-13 16:05:04,895 INFO L226 Difference]: Without dead ends: 1709 [2022-12-13 16:05:04,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:05:04,896 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3721 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:04,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 1866 Invalid, 5438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 3649 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-12-13 16:05:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-12-13 16:05:04,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2022-12-13 16:05:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1146 states have (on average 1.2303664921465969) internal successors, (1410), 1213 states have internal predecessors, (1410), 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) [2022-12-13 16:05:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2246 transitions. [2022-12-13 16:05:04,976 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2246 transitions. Word has length 83 [2022-12-13 16:05:04,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:04,976 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2246 transitions. [2022-12-13 16:05:04,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 16:05:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2246 transitions. [2022-12-13 16:05:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 16:05:04,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:04,978 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:05:04,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:05:04,978 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)] === [2022-12-13 16:05:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1356881554, now seen corresponding path program 1 times [2022-12-13 16:05:04,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:04,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650594590] [2022-12-13 16:05:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:04,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:05,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:05,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650594590] [2022-12-13 16:05:05,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650594590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:05,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:05,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:05,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906572333] [2022-12-13 16:05:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:05,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:05,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:05,289 INFO L87 Difference]: Start difference. First operand 1709 states and 2246 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 16:05:09,697 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 [] [2022-12-13 16:05:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:12,504 INFO L93 Difference]: Finished difference Result 1709 states and 2246 transitions. [2022-12-13 16:05:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:05:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 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 89 [2022-12-13 16:05:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:12,509 INFO L225 Difference]: With dead ends: 1709 [2022-12-13 16:05:12,509 INFO L226 Difference]: Without dead ends: 1707 [2022-12-13 16:05:12,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:05:12,510 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3709 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3642 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:12,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 1869 Invalid, 5433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3642 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-12-13 16:05:12,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-12-13 16:05:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2022-12-13 16:05:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1145 states have (on average 1.2296943231441049) internal successors, (1408), 1211 states have internal predecessors, (1408), 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) [2022-12-13 16:05:12,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2244 transitions. [2022-12-13 16:05:12,574 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2244 transitions. Word has length 89 [2022-12-13 16:05:12,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:12,574 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 2244 transitions. [2022-12-13 16:05:12,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 16:05:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2244 transitions. [2022-12-13 16:05:12,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 16:05:12,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:12,576 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:12,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:05:12,576 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)] === [2022-12-13 16:05:12,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:12,576 INFO L85 PathProgramCache]: Analyzing trace with hash 197584719, now seen corresponding path program 1 times [2022-12-13 16:05:12,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:12,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924595673] [2022-12-13 16:05:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:12,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:12,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:12,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924595673] [2022-12-13 16:05:12,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924595673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:12,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:12,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:12,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931920770] [2022-12-13 16:05:12,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:12,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:12,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:12,890 INFO L87 Difference]: Start difference. First operand 1707 states and 2244 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:05:17,218 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 [] [2022-12-13 16:05:20,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:20,533 INFO L93 Difference]: Finished difference Result 1707 states and 2244 transitions. [2022-12-13 16:05:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:05:20,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 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 95 [2022-12-13 16:05:20,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:20,540 INFO L225 Difference]: With dead ends: 1707 [2022-12-13 16:05:20,540 INFO L226 Difference]: Without dead ends: 1705 [2022-12-13 16:05:20,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:05:20,542 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3703 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:20,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 1869 Invalid, 5429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3638 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 16:05:20,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2022-12-13 16:05:20,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2022-12-13 16:05:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1144 states have (on average 1.229020979020979) internal successors, (1406), 1209 states have internal predecessors, (1406), 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) [2022-12-13 16:05:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2242 transitions. [2022-12-13 16:05:20,629 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2242 transitions. Word has length 95 [2022-12-13 16:05:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:20,629 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2242 transitions. [2022-12-13 16:05:20,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 16:05:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2242 transitions. [2022-12-13 16:05:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 16:05:20,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:20,631 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:05:20,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:05:20,631 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)] === [2022-12-13 16:05:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash 552309091, now seen corresponding path program 1 times [2022-12-13 16:05:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:20,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305839430] [2022-12-13 16:05:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:05:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:20,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305839430] [2022-12-13 16:05:20,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305839430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:20,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:20,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:20,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522585087] [2022-12-13 16:05:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:20,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:20,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:20,910 INFO L87 Difference]: Start difference. First operand 1705 states and 2242 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 16:05:26,147 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 [] [2022-12-13 16:05:29,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:29,162 INFO L93 Difference]: Finished difference Result 1705 states and 2242 transitions. [2022-12-13 16:05:29,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:05:29,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 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 101 [2022-12-13 16:05:29,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:29,167 INFO L225 Difference]: With dead ends: 1705 [2022-12-13 16:05:29,167 INFO L226 Difference]: Without dead ends: 1703 [2022-12-13 16:05:29,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:05:29,168 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3697 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:29,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3862 Valid, 1869 Invalid, 5425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3634 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-13 16:05:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-12-13 16:05:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2022-12-13 16:05:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1143 states have (on average 1.2283464566929134) internal successors, (1404), 1207 states have internal predecessors, (1404), 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) [2022-12-13 16:05:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2240 transitions. [2022-12-13 16:05:29,274 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2240 transitions. Word has length 101 [2022-12-13 16:05:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:29,274 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2240 transitions. [2022-12-13 16:05:29,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 16:05:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2240 transitions. [2022-12-13 16:05:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 16:05:29,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:29,277 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:29,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:05:29,277 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)] === [2022-12-13 16:05:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:29,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1167966893, now seen corresponding path program 1 times [2022-12-13 16:05:29,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:29,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367400889] [2022-12-13 16:05:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:29,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:05:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:05:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:29,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:29,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367400889] [2022-12-13 16:05:29,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367400889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:29,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:29,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585865230] [2022-12-13 16:05:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:29,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:29,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:29,560 INFO L87 Difference]: Start difference. First operand 1703 states and 2240 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:05:34,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:36,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:39,455 INFO L93 Difference]: Finished difference Result 1703 states and 2240 transitions. [2022-12-13 16:05:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:05:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 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 107 [2022-12-13 16:05:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:39,460 INFO L225 Difference]: With dead ends: 1703 [2022-12-13 16:05:39,460 INFO L226 Difference]: Without dead ends: 1701 [2022-12-13 16:05:39,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:05:39,461 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3697 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3861 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 5422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:39,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3861 Valid, 1866 Invalid, 5422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 3633 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-12-13 16:05:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2022-12-13 16:05:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2022-12-13 16:05:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1142 states have (on average 1.2276707530647986) internal successors, (1402), 1205 states have internal predecessors, (1402), 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) [2022-12-13 16:05:39,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2238 transitions. [2022-12-13 16:05:39,535 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2238 transitions. Word has length 107 [2022-12-13 16:05:39,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:39,535 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2238 transitions. [2022-12-13 16:05:39,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:05:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2238 transitions. [2022-12-13 16:05:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 16:05:39,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:39,537 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:05:39,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:05:39,537 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)] === [2022-12-13 16:05:39,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash -936903267, now seen corresponding path program 1 times [2022-12-13 16:05:39,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:39,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221497438] [2022-12-13 16:05:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:39,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:05:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:05:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:05:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:39,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:39,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221497438] [2022-12-13 16:05:39,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221497438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:39,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:39,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:39,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608405136] [2022-12-13 16:05:39,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:39,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:39,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:39,833 INFO L87 Difference]: Start difference. First operand 1701 states and 2238 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:05:44,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:46,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:05:49,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:49,151 INFO L93 Difference]: Finished difference Result 1701 states and 2238 transitions. [2022-12-13 16:05:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:05:49,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 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 113 [2022-12-13 16:05:49,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:49,156 INFO L225 Difference]: With dead ends: 1701 [2022-12-13 16:05:49,156 INFO L226 Difference]: Without dead ends: 1699 [2022-12-13 16:05:49,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:05:49,157 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3695 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 3625 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 5414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 3625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:49,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3858 Valid, 1866 Invalid, 5414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 3625 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-13 16:05:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-12-13 16:05:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-12-13 16:05:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1141 states have (on average 1.2269938650306749) internal successors, (1400), 1203 states have internal predecessors, (1400), 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) [2022-12-13 16:05:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2236 transitions. [2022-12-13 16:05:49,242 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2236 transitions. Word has length 113 [2022-12-13 16:05:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:49,243 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2236 transitions. [2022-12-13 16:05:49,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:05:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2236 transitions. [2022-12-13 16:05:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-13 16:05:49,244 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:49,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:49,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:05:49,244 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)] === [2022-12-13 16:05:49,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:49,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1579230688, now seen corresponding path program 1 times [2022-12-13 16:05:49,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:49,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243272472] [2022-12-13 16:05:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:49,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:05:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:05:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:05:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:49,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243272472] [2022-12-13 16:05:49,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243272472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:49,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:49,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:49,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455543775] [2022-12-13 16:05:49,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:49,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:49,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:49,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:49,517 INFO L87 Difference]: Start difference. First operand 1699 states and 2236 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:05:54,303 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 [] [2022-12-13 16:05:57,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:57,195 INFO L93 Difference]: Finished difference Result 1699 states and 2236 transitions. [2022-12-13 16:05:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:05:57,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 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 115 [2022-12-13 16:05:57,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:57,202 INFO L225 Difference]: With dead ends: 1699 [2022-12-13 16:05:57,202 INFO L226 Difference]: Without dead ends: 1697 [2022-12-13 16:05:57,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:05:57,203 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3677 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3622 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3840 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3622 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:57,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3840 Valid, 1869 Invalid, 5413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3622 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 16:05:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-12-13 16:05:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2022-12-13 16:05:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1140 states have (on average 1.2263157894736842) internal successors, (1398), 1201 states have internal predecessors, (1398), 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) [2022-12-13 16:05:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2234 transitions. [2022-12-13 16:05:57,295 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2234 transitions. Word has length 115 [2022-12-13 16:05:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:57,295 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2234 transitions. [2022-12-13 16:05:57,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:05:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2234 transitions. [2022-12-13 16:05:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 16:05:57,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:57,297 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:05:57,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:05:57,297 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)] === [2022-12-13 16:05:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:57,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1815507400, now seen corresponding path program 1 times [2022-12-13 16:05:57,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:57,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112357575] [2022-12-13 16:05:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:57,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:05:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:05:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:05:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:05:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:05:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:05:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:05:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:05:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:05:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:05:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:05:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:05:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:05:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:05:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:05:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:05:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:05:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:05:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:05:57,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:57,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112357575] [2022-12-13 16:05:57,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112357575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:57,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:57,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373265652] [2022-12-13 16:05:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:57,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:57,574 INFO L87 Difference]: Start difference. First operand 1697 states and 2234 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 16:06:02,458 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 [] [2022-12-13 16:06:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:06:05,572 INFO L93 Difference]: Finished difference Result 1697 states and 2234 transitions. [2022-12-13 16:06:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:06:05,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 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 121 [2022-12-13 16:06:05,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:06:05,576 INFO L225 Difference]: With dead ends: 1697 [2022-12-13 16:06:05,576 INFO L226 Difference]: Without dead ends: 1695 [2022-12-13 16:06:05,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:06:05,577 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3673 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3618 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3618 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:06:05,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 1869 Invalid, 5409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3618 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-13 16:06:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2022-12-13 16:06:05,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2022-12-13 16:06:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1139 states have (on average 1.225636523266023) internal successors, (1396), 1199 states have internal predecessors, (1396), 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) [2022-12-13 16:06:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2232 transitions. [2022-12-13 16:06:05,663 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2232 transitions. Word has length 121 [2022-12-13 16:06:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:06:05,663 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2232 transitions. [2022-12-13 16:06:05,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 16:06:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2232 transitions. [2022-12-13 16:06:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 16:06:05,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:06:05,665 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-13 16:06:05,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:06:05,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-12-13 16:06:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:06:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1975839721, now seen corresponding path program 1 times [2022-12-13 16:06:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:06:05,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357515583] [2022-12-13 16:06:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:06:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:06:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:06:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:06:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:06:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:06:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:06:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:06:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:06:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:06:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:06:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:06:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:06:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:06:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:06:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-12-13 16:06:06,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:06:06,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357515583] [2022-12-13 16:06:06,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357515583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:06:06,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:06:06,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:06:06,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311974876] [2022-12-13 16:06:06,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:06:06,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:06:06,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:06:06,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:06:06,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:06:06,389 INFO L87 Difference]: Start difference. First operand 1695 states and 2232 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:06:13,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:06:15,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:06:17,924 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 [] [2022-12-13 16:06:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:06:23,442 INFO L93 Difference]: Finished difference Result 3504 states and 4707 transitions. [2022-12-13 16:06:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 16:06:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (19), 5 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 168 [2022-12-13 16:06:23,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:06:23,448 INFO L225 Difference]: With dead ends: 3504 [2022-12-13 16:06:23,449 INFO L226 Difference]: Without dead ends: 1849 [2022-12-13 16:06:23,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:06:23,453 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 4722 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 8279 mSolverCounterSat, 2574 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 10855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 8279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:06:23,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4900 Valid, 3049 Invalid, 10855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2574 Valid, 8279 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-12-13 16:06:23,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-12-13 16:06:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1695. [2022-12-13 16:06:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1139 states have (on average 1.224758560140474) internal successors, (1395), 1199 states have internal predecessors, (1395), 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) [2022-12-13 16:06:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2231 transitions. [2022-12-13 16:06:23,570 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2231 transitions. Word has length 168 [2022-12-13 16:06:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:06:23,570 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2231 transitions. [2022-12-13 16:06:23,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 16:06:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2231 transitions. [2022-12-13 16:06:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 16:06:23,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:06:23,572 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-13 16:06:23,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:06:23,572 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)] === [2022-12-13 16:06:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:06:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1975780139, now seen corresponding path program 1 times [2022-12-13 16:06:23,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:06:23,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402126923] [2022-12-13 16:06:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:06:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:06:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:06:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:06:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:06:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:06:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:06:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:06:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:06:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:06:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:06:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:06:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:06:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:06:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:06:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-12-13 16:06:23,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:06:23,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402126923] [2022-12-13 16:06:23,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402126923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:06:23,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:06:23,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:06:23,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144525411] [2022-12-13 16:06:23,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:06:23,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:06:23,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:06:23,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:06:23,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:06:23,993 INFO L87 Difference]: Start difference. First operand 1695 states and 2231 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-12-13 16:06:29,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:06:31,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:06:33,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:06:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:06:38,897 INFO L93 Difference]: Finished difference Result 1849 states and 2467 transitions. [2022-12-13 16:06:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:06:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2022-12-13 16:06:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:06:38,904 INFO L225 Difference]: With dead ends: 1849 [2022-12-13 16:06:38,905 INFO L226 Difference]: Without dead ends: 1847 [2022-12-13 16:06:38,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:06:38,906 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 3041 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 6327 mSolverCounterSat, 2030 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 8359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2030 IncrementalHoareTripleChecker+Valid, 6327 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:06:38,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 2707 Invalid, 8359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2030 Valid, 6327 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-12-13 16:06:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-12-13 16:06:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1693. [2022-12-13 16:06:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1138 states have (on average 1.2240773286467488) internal successors, (1393), 1197 states have internal predecessors, (1393), 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) [2022-12-13 16:06:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2229 transitions. [2022-12-13 16:06:39,052 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2229 transitions. Word has length 168 [2022-12-13 16:06:39,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:06:39,053 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2229 transitions. [2022-12-13 16:06:39,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-12-13 16:06:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2229 transitions. [2022-12-13 16:06:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-13 16:06:39,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:06:39,054 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:06:39,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:06:39,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-12-13 16:06:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:06:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1153111736, now seen corresponding path program 1 times [2022-12-13 16:06:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:06:39,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095696278] [2022-12-13 16:06:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:06:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:06:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:06:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:06:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:06:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:06:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:06:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:06:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:06:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:06:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:06:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:06:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:06:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:06:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:06:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:06:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:06:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:06:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:06:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:06:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:06:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:06:39,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095696278] [2022-12-13 16:06:39,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095696278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:06:39,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:06:39,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:06:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669670772] [2022-12-13 16:06:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:06:39,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:06:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:06:39,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:06:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:06:39,443 INFO L87 Difference]: Start difference. First operand 1693 states and 2229 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:06:44,774 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 [] [2022-12-13 16:06:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:06:47,772 INFO L93 Difference]: Finished difference Result 1693 states and 2229 transitions. [2022-12-13 16:06:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:06:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 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 127 [2022-12-13 16:06:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:06:47,777 INFO L225 Difference]: With dead ends: 1693 [2022-12-13 16:06:47,778 INFO L226 Difference]: Without dead ends: 1691 [2022-12-13 16:06:47,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:06:47,778 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3664 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 3611 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 5400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 3611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:06:47,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 1866 Invalid, 5400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 3611 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-13 16:06:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2022-12-13 16:06:47,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2022-12-13 16:06:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1137 states have (on average 1.2233948988566403) internal successors, (1391), 1195 states have internal predecessors, (1391), 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) [2022-12-13 16:06:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2227 transitions. [2022-12-13 16:06:47,892 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2227 transitions. Word has length 127 [2022-12-13 16:06:47,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:06:47,893 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2227 transitions. [2022-12-13 16:06:47,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 16:06:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2227 transitions. [2022-12-13 16:06:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 16:06:47,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:06:47,894 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 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] [2022-12-13 16:06:47,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:06:47,894 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)] === [2022-12-13 16:06:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:06:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash 69885628, now seen corresponding path program 1 times [2022-12-13 16:06:47,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:06:47,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003853183] [2022-12-13 16:06:47,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:06:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:06:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:06:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:06:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:06:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:06:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:06:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:06:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:06:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:06:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:06:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:06:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:06:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:06:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:06:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:06:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:06:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:06:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:06:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:06:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:06:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:06:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-12-13 16:06:48,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:06:48,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003853183] [2022-12-13 16:06:48,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003853183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:06:48,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:06:48,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:06:48,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691565066] [2022-12-13 16:06:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:06:48,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:06:48,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:06:48,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:06:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:06:48,526 INFO L87 Difference]: Start difference. First operand 1691 states and 2227 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 16:06:55,271 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 [] [2022-12-13 16:07:00,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:02,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:11,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:11,200 INFO L93 Difference]: Finished difference Result 3537 states and 4749 transitions. [2022-12-13 16:07:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:07:11,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 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 164 [2022-12-13 16:07:11,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:11,214 INFO L225 Difference]: With dead ends: 3537 [2022-12-13 16:07:11,215 INFO L226 Difference]: Without dead ends: 3535 [2022-12-13 16:07:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-12-13 16:07:11,216 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 6688 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 11547 mSolverCounterSat, 4232 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6852 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 15781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4232 IncrementalHoareTripleChecker+Valid, 11547 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:11,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6852 Valid, 3195 Invalid, 15781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4232 Valid, 11547 Invalid, 2 Unknown, 0 Unchecked, 22.1s Time] [2022-12-13 16:07:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2022-12-13 16:07:11,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3239. [2022-12-13 16:07:11,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 2216 states have (on average 1.2355595667870036) internal successors, (2738), 2324 states have internal predecessors, (2738), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:07:11,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 4397 transitions. [2022-12-13 16:07:11,489 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 4397 transitions. Word has length 164 [2022-12-13 16:07:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:07:11,489 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 4397 transitions. [2022-12-13 16:07:11,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 16:07:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 4397 transitions. [2022-12-13 16:07:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 16:07:11,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:07:11,492 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-13 16:07:11,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:07:11,492 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)] === [2022-12-13 16:07:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:07:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash 248277191, now seen corresponding path program 1 times [2022-12-13 16:07:11,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:07:11,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897560598] [2022-12-13 16:07:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:07:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:07:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:07:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:07:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:07:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:07:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:07:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:07:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:07:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:07:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:07:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:07:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:07:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:07:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:07:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:07:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:07:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:07:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:07:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:07:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:07:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:07:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:07:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:07:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 16:07:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-12-13 16:07:11,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:07:11,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897560598] [2022-12-13 16:07:11,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897560598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:07:11,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:07:11,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:07:11,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877823845] [2022-12-13 16:07:11,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:07:11,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:07:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:07:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:07:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:07:11,845 INFO L87 Difference]: Start difference. First operand 3239 states and 4397 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:07:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:19,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:22,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:22,823 INFO L93 Difference]: Finished difference Result 6512 states and 9053 transitions. [2022-12-13 16:07:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:07:22,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 5 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 175 [2022-12-13 16:07:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:22,840 INFO L225 Difference]: With dead ends: 6512 [2022-12-13 16:07:22,840 INFO L226 Difference]: Without dead ends: 3313 [2022-12-13 16:07:22,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:07:22,853 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 4667 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 2574 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 5397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:22,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4847 Valid, 1679 Invalid, 5397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2574 Valid, 2821 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-12-13 16:07:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3313 states. [2022-12-13 16:07:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3313 to 3233. [2022-12-13 16:07:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2211 states have (on average 1.234283129805518) internal successors, (2729), 2318 states have internal predecessors, (2729), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:07:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4388 transitions. [2022-12-13 16:07:23,226 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4388 transitions. Word has length 175 [2022-12-13 16:07:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:07:23,226 INFO L495 AbstractCegarLoop]: Abstraction has 3233 states and 4388 transitions. [2022-12-13 16:07:23,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 16:07:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4388 transitions. [2022-12-13 16:07:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 16:07:23,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:07:23,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:07:23,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:07:23,228 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-12-13 16:07:23,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:07:23,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1887744729, now seen corresponding path program 1 times [2022-12-13 16:07:23,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:07:23,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068031802] [2022-12-13 16:07:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:07:23,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:07:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:07:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:07:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:07:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:07:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:07:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:07:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:07:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:07:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:07:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:07:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:07:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:07:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:07:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:07:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:07:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:07:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:07:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:07:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:07:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:07:23,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:07:23,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068031802] [2022-12-13 16:07:23,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068031802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:07:23,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:07:23,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:07:23,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113855816] [2022-12-13 16:07:23,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:07:23,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:07:23,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:07:23,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:07:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:07:23,511 INFO L87 Difference]: Start difference. First operand 3233 states and 4388 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 16:07:26,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:28,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:33,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:33,101 INFO L93 Difference]: Finished difference Result 3233 states and 4388 transitions. [2022-12-13 16:07:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:07:33,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 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 133 [2022-12-13 16:07:33,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:33,112 INFO L225 Difference]: With dead ends: 3233 [2022-12-13 16:07:33,112 INFO L226 Difference]: Without dead ends: 3231 [2022-12-13 16:07:33,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:07:33,113 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3637 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3797 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:33,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3797 Valid, 1869 Invalid, 5385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3594 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-13 16:07:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2022-12-13 16:07:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 3231. [2022-12-13 16:07:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3231 states, 2210 states have (on average 1.2339366515837105) internal successors, (2727), 2316 states have internal predecessors, (2727), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:07:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3231 states to 3231 states and 4386 transitions. [2022-12-13 16:07:33,364 INFO L78 Accepts]: Start accepts. Automaton has 3231 states and 4386 transitions. Word has length 133 [2022-12-13 16:07:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:07:33,364 INFO L495 AbstractCegarLoop]: Abstraction has 3231 states and 4386 transitions. [2022-12-13 16:07:33,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 16:07:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3231 states and 4386 transitions. [2022-12-13 16:07:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 16:07:33,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:07:33,367 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:07:33,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:07:33,367 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-12-13 16:07:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:07:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1103003174, now seen corresponding path program 1 times [2022-12-13 16:07:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:07:33,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841667272] [2022-12-13 16:07:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:07:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:07:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:07:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:07:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:07:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:07:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:07:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:07:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:07:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:07:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:07:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:07:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:07:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:07:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:07:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:07:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:07:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:07:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:07:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:07:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:07:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:07:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:07:33,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:07:33,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841667272] [2022-12-13 16:07:33,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841667272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:07:33,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:07:33,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:07:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274878138] [2022-12-13 16:07:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:07:33,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:07:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:07:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:07:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:07:33,647 INFO L87 Difference]: Start difference. First operand 3231 states and 4386 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 16:07:38,561 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 [] [2022-12-13 16:07:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:42,967 INFO L93 Difference]: Finished difference Result 3231 states and 4386 transitions. [2022-12-13 16:07:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:07:42,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 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 139 [2022-12-13 16:07:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:42,975 INFO L225 Difference]: With dead ends: 3231 [2022-12-13 16:07:42,975 INFO L226 Difference]: Without dead ends: 3229 [2022-12-13 16:07:42,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:07:42,976 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3631 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:42,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 1869 Invalid, 5381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3590 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-12-13 16:07:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2022-12-13 16:07:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3229. [2022-12-13 16:07:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 2209 states have (on average 1.2335898596650068) internal successors, (2725), 2314 states have internal predecessors, (2725), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:07:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4384 transitions. [2022-12-13 16:07:43,230 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4384 transitions. Word has length 139 [2022-12-13 16:07:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:07:43,230 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 4384 transitions. [2022-12-13 16:07:43,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 16:07:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4384 transitions. [2022-12-13 16:07:43,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 16:07:43,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:07:43,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:07:43,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:07:43,232 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-12-13 16:07:43,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:07:43,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1520148880, now seen corresponding path program 1 times [2022-12-13 16:07:43,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:07:43,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321145091] [2022-12-13 16:07:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:07:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:07:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:07:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:07:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:07:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:07:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:07:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:07:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:07:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:07:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:07:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:07:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:07:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:07:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:07:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:07:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:07:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:07:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:07:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:07:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:07:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:07:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:07:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:07:43,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:07:43,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321145091] [2022-12-13 16:07:43,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321145091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:07:43,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:07:43,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:07:43,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800773639] [2022-12-13 16:07:43,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:07:43,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:07:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:07:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:07:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:07:43,511 INFO L87 Difference]: Start difference. First operand 3229 states and 4384 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 16:07:48,145 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 [] [2022-12-13 16:07:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:07:52,051 INFO L93 Difference]: Finished difference Result 3229 states and 4384 transitions. [2022-12-13 16:07:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:07:52,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 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 145 [2022-12-13 16:07:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:07:52,058 INFO L225 Difference]: With dead ends: 3229 [2022-12-13 16:07:52,058 INFO L226 Difference]: Without dead ends: 3227 [2022-12-13 16:07:52,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:07:52,059 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3625 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3586 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3783 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:07:52,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3783 Valid, 1869 Invalid, 5377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3586 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-13 16:07:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2022-12-13 16:07:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3227. [2022-12-13 16:07:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 2208 states have (on average 1.2332427536231885) internal successors, (2723), 2312 states have internal predecessors, (2723), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:07:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4382 transitions. [2022-12-13 16:07:52,318 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4382 transitions. Word has length 145 [2022-12-13 16:07:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:07:52,319 INFO L495 AbstractCegarLoop]: Abstraction has 3227 states and 4382 transitions. [2022-12-13 16:07:52,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 16:07:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4382 transitions. [2022-12-13 16:07:52,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 16:07:52,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:07:52,320 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:07:52,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:07:52,321 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-12-13 16:07:52,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:07:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash -133795278, now seen corresponding path program 1 times [2022-12-13 16:07:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:07:52,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195460232] [2022-12-13 16:07:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:07:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:07:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:07:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:07:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:07:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:07:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:07:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:07:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:07:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:07:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:07:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:07:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:07:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:07:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:07:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:07:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:07:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:07:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:07:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:07:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:07:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:07:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:07:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:07:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:07:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:07:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:07:52,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:07:52,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195460232] [2022-12-13 16:07:52,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195460232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:07:52,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:07:52,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:07:52,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451514729] [2022-12-13 16:07:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:07:52,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:07:52,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:07:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:07:52,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:07:52,654 INFO L87 Difference]: Start difference. First operand 3227 states and 4382 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 16:07:56,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:07:58,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:08:02,722 INFO L93 Difference]: Finished difference Result 3227 states and 4382 transitions. [2022-12-13 16:08:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:08:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 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 151 [2022-12-13 16:08:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:08:02,736 INFO L225 Difference]: With dead ends: 3227 [2022-12-13 16:08:02,737 INFO L226 Difference]: Without dead ends: 3225 [2022-12-13 16:08:02,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:08:02,738 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3619 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:08:02,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3776 Valid, 1869 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3582 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-12-13 16:08:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-12-13 16:08:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3225. [2022-12-13 16:08:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 2207 states have (on average 1.2328953330312642) internal successors, (2721), 2310 states have internal predecessors, (2721), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:08:03,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4380 transitions. [2022-12-13 16:08:03,025 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4380 transitions. Word has length 151 [2022-12-13 16:08:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:08:03,026 INFO L495 AbstractCegarLoop]: Abstraction has 3225 states and 4380 transitions. [2022-12-13 16:08:03,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 16:08:03,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4380 transitions. [2022-12-13 16:08:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 16:08:03,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:08:03,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:08:03,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:08:03,027 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-12-13 16:08:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:08:03,028 INFO L85 PathProgramCache]: Analyzing trace with hash 885564808, now seen corresponding path program 1 times [2022-12-13 16:08:03,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:08:03,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285351512] [2022-12-13 16:08:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:08:03,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:08:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:08:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:08:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:08:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:08:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:08:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:08:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:08:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:08:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:08:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:08:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:08:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:08:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:08:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:08:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:08:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:08:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:08:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:08:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:08:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:08:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:08:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:08:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:08:03,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:08:03,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285351512] [2022-12-13 16:08:03,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285351512] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:08:03,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:08:03,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:08:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550768133] [2022-12-13 16:08:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:08:03,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:08:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:08:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:08:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:08:03,592 INFO L87 Difference]: Start difference. First operand 3225 states and 4380 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 16:08:07,929 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 [] [2022-12-13 16:08:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:08:12,584 INFO L93 Difference]: Finished difference Result 3225 states and 4380 transitions. [2022-12-13 16:08:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:08:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 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 157 [2022-12-13 16:08:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:08:12,591 INFO L225 Difference]: With dead ends: 3225 [2022-12-13 16:08:12,592 INFO L226 Difference]: Without dead ends: 3223 [2022-12-13 16:08:12,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:08:12,593 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3613 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:08:12,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3769 Valid, 1869 Invalid, 5369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3578 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-12-13 16:08:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2022-12-13 16:08:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3223. [2022-12-13 16:08:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2206 states have (on average 1.2325475974614688) internal successors, (2719), 2308 states have internal predecessors, (2719), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:08:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4378 transitions. [2022-12-13 16:08:12,894 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4378 transitions. Word has length 157 [2022-12-13 16:08:12,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:08:12,894 INFO L495 AbstractCegarLoop]: Abstraction has 3223 states and 4378 transitions. [2022-12-13 16:08:12,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 16:08:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4378 transitions. [2022-12-13 16:08:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 16:08:12,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:08:12,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:08:12,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:08:12,897 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-12-13 16:08:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:08:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1022212369, now seen corresponding path program 1 times [2022-12-13 16:08:12,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:08:12,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082306090] [2022-12-13 16:08:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:08:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:08:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:08:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:08:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:08:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:08:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:08:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:08:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:08:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:08:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:08:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:08:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:08:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:08:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:08:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:08:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:08:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:08:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:08:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:08:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:08:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:08:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:08:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:08:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:08:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:08:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:08:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082306090] [2022-12-13 16:08:13,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082306090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:08:13,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:08:13,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:08:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859588610] [2022-12-13 16:08:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:08:13,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:08:13,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:08:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:08:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:08:13,218 INFO L87 Difference]: Start difference. First operand 3223 states and 4378 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 16:08:17,978 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 [] [2022-12-13 16:08:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:08:22,023 INFO L93 Difference]: Finished difference Result 3223 states and 4378 transitions. [2022-12-13 16:08:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:08:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 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 163 [2022-12-13 16:08:22,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:08:22,032 INFO L225 Difference]: With dead ends: 3223 [2022-12-13 16:08:22,032 INFO L226 Difference]: Without dead ends: 3221 [2022-12-13 16:08:22,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:08:22,033 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3607 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3762 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 5365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:08:22,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3762 Valid, 1869 Invalid, 5365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3574 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-12-13 16:08:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2022-12-13 16:08:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3221. [2022-12-13 16:08:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 2205 states have (on average 1.2321995464852609) internal successors, (2717), 2306 states have internal predecessors, (2717), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:08:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 4376 transitions. [2022-12-13 16:08:22,342 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 4376 transitions. Word has length 163 [2022-12-13 16:08:22,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:08:22,343 INFO L495 AbstractCegarLoop]: Abstraction has 3221 states and 4376 transitions. [2022-12-13 16:08:22,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 16:08:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 4376 transitions. [2022-12-13 16:08:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-13 16:08:22,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:08:22,345 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 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] [2022-12-13 16:08:22,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 16:08:22,345 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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)] === [2022-12-13 16:08:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:08:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2000871299, now seen corresponding path program 1 times [2022-12-13 16:08:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:08:22,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527915832] [2022-12-13 16:08:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:08:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:08:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:08:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:08:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:08:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:08:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:08:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:08:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:08:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:08:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:08:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:08:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:08:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:08:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:08:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:08:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:08:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:08:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:08:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:08:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-12-13 16:08:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:08:22,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527915832] [2022-12-13 16:08:22,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527915832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:08:22,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:08:22,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:08:22,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821616789] [2022-12-13 16:08:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:08:22,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:08:22,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:08:22,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:08:22,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:08:22,692 INFO L87 Difference]: Start difference. First operand 3221 states and 4376 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-12-13 16:08:27,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:28,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:30,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:34,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:39,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:08:39,975 INFO L93 Difference]: Finished difference Result 6398 states and 8798 transitions. [2022-12-13 16:08:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:08:39,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 211 [2022-12-13 16:08:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:08:39,983 INFO L225 Difference]: With dead ends: 6398 [2022-12-13 16:08:39,983 INFO L226 Difference]: Without dead ends: 3323 [2022-12-13 16:08:39,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:08:39,990 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 2999 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 6322 mSolverCounterSat, 2035 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 8359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2035 IncrementalHoareTripleChecker+Valid, 6322 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:08:39,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 2709 Invalid, 8359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2035 Valid, 6322 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-12-13 16:08:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2022-12-13 16:08:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3227. [2022-12-13 16:08:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 2211 states have (on average 1.2315694255992764) internal successors, (2723), 2312 states have internal predecessors, (2723), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2022-12-13 16:08:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4382 transitions. [2022-12-13 16:08:40,306 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4382 transitions. Word has length 211 [2022-12-13 16:08:40,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:08:40,306 INFO L495 AbstractCegarLoop]: Abstraction has 3227 states and 4382 transitions. [2022-12-13 16:08:40,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-12-13 16:08:40,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4382 transitions. [2022-12-13 16:08:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-13 16:08:40,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:08:40,308 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 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] [2022-12-13 16:08:40,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 16:08:40,308 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)] === [2022-12-13 16:08:40,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:08:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1484749371, now seen corresponding path program 1 times [2022-12-13 16:08:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:08:40,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815027263] [2022-12-13 16:08:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:08:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:08:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:08:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:08:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:08:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:08:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:08:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:08:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:08:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:08:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:08:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:08:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:08:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:08:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:08:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:08:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:08:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:08:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:08:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:08:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:08:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:08:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:08:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:08:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:08:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-12-13 16:08:41,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:08:41,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815027263] [2022-12-13 16:08:41,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815027263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:08:41,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:08:41,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:08:41,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147613665] [2022-12-13 16:08:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:08:41,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:08:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:08:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:08:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:08:41,055 INFO L87 Difference]: Start difference. First operand 3227 states and 4382 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 16:08:48,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:50,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:55,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:57,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:08:59,261 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 [] [2022-12-13 16:09:05,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:05,339 INFO L93 Difference]: Finished difference Result 6407 states and 8789 transitions. [2022-12-13 16:09:05,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:09:05,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 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 211 [2022-12-13 16:09:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:05,346 INFO L225 Difference]: With dead ends: 6407 [2022-12-13 16:09:05,347 INFO L226 Difference]: Without dead ends: 3326 [2022-12-13 16:09:05,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:09:05,353 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2978 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 8216 mSolverCounterSat, 2040 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 10260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2040 IncrementalHoareTripleChecker+Valid, 8216 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:05,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 3109 Invalid, 10260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2040 Valid, 8216 Invalid, 4 Unknown, 0 Unchecked, 23.7s Time] [2022-12-13 16:09:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2022-12-13 16:09:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3244. [2022-12-13 16:09:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 2225 states have (on average 1.230561797752809) internal successors, (2738), 2328 states have internal predecessors, (2738), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2022-12-13 16:09:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4403 transitions. [2022-12-13 16:09:05,672 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 4403 transitions. Word has length 211 [2022-12-13 16:09:05,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:05,672 INFO L495 AbstractCegarLoop]: Abstraction has 3244 states and 4403 transitions. [2022-12-13 16:09:05,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 16:09:05,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 4403 transitions. [2022-12-13 16:09:05,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-13 16:09:05,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:05,674 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-13 16:09:05,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 16:09:05,674 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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)] === [2022-12-13 16:09:05,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1258355577, now seen corresponding path program 1 times [2022-12-13 16:09:05,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:05,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206727925] [2022-12-13 16:09:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:09:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:09:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:09:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:09:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:09:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:09:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:09:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:09:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:09:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:09:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:09:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-12-13 16:09:06,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:06,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206727925] [2022-12-13 16:09:06,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206727925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:06,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:09:06,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:09:06,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922085064] [2022-12-13 16:09:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:09:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:06,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:09:06,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:09:06,061 INFO L87 Difference]: Start difference. First operand 3244 states and 4403 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 16:09:11,336 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 [] [2022-12-13 16:09:14,793 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 [] [2022-12-13 16:09:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:17,915 INFO L93 Difference]: Finished difference Result 6572 states and 8965 transitions. [2022-12-13 16:09:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:09:17,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 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 206 [2022-12-13 16:09:17,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:17,922 INFO L225 Difference]: With dead ends: 6572 [2022-12-13 16:09:17,922 INFO L226 Difference]: Without dead ends: 3488 [2022-12-13 16:09:17,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:09:17,928 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 5273 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 3184 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5465 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 6569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3184 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:17,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5465 Valid, 1473 Invalid, 6569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3184 Valid, 3383 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-12-13 16:09:17,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2022-12-13 16:09:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3238. [2022-12-13 16:09:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 2220 states have (on average 1.2292792792792793) internal successors, (2729), 2322 states have internal predecessors, (2729), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2022-12-13 16:09:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4394 transitions. [2022-12-13 16:09:18,272 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4394 transitions. Word has length 206 [2022-12-13 16:09:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:18,272 INFO L495 AbstractCegarLoop]: Abstraction has 3238 states and 4394 transitions. [2022-12-13 16:09:18,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 16:09:18,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4394 transitions. [2022-12-13 16:09:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 16:09:18,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:18,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:09:18,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 16:09:18,274 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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)] === [2022-12-13 16:09:18,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:18,274 INFO L85 PathProgramCache]: Analyzing trace with hash -615347653, now seen corresponding path program 1 times [2022-12-13 16:09:18,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:18,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743448898] [2022-12-13 16:09:18,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:18,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:09:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:09:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:09:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:09:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:09:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:09:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:09:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:09:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:09:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:09:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:09:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:09:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:09:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:09:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:09:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:09:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:09:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:09:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:09:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:09:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:09:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:09:18,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:18,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743448898] [2022-12-13 16:09:18,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743448898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:18,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:09:18,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:09:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785758545] [2022-12-13 16:09:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:18,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:09:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:18,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:09:18,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:09:18,591 INFO L87 Difference]: Start difference. First operand 3238 states and 4394 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 16:09:23,537 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 [] [2022-12-13 16:09:26,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:09:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:28,184 INFO L93 Difference]: Finished difference Result 3238 states and 4394 transitions. [2022-12-13 16:09:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:09:28,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 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 169 [2022-12-13 16:09:28,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:28,189 INFO L225 Difference]: With dead ends: 3238 [2022-12-13 16:09:28,189 INFO L226 Difference]: Without dead ends: 3236 [2022-12-13 16:09:28,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:09:28,190 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 3596 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:28,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 1850 Invalid, 5360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3569 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-12-13 16:09:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2022-12-13 16:09:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3236. [2022-12-13 16:09:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3236 states, 2219 states have (on average 1.2289319513294277) internal successors, (2727), 2320 states have internal predecessors, (2727), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2022-12-13 16:09:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 4392 transitions. [2022-12-13 16:09:28,537 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 4392 transitions. Word has length 169 [2022-12-13 16:09:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:28,537 INFO L495 AbstractCegarLoop]: Abstraction has 3236 states and 4392 transitions. [2022-12-13 16:09:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 16:09:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 4392 transitions. [2022-12-13 16:09:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-13 16:09:28,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:28,539 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:09:28,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 16:09:28,539 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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)] === [2022-12-13 16:09:28,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1034586922, now seen corresponding path program 1 times [2022-12-13 16:09:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:28,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706917956] [2022-12-13 16:09:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:09:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:09:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:09:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:09:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:09:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:09:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:09:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:09:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:09:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:09:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:09:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:09:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-12-13 16:09:29,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:29,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706917956] [2022-12-13 16:09:29,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706917956] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:09:29,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126200224] [2022-12-13 16:09:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:29,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:09:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:09:29,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:09:29,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:09:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:29,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:09:29,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:09:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-12-13 16:09:29,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:09:29,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126200224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:29,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:09:29,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-13 16:09:29,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999404866] [2022-12-13 16:09:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:29,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:09:29,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:09:29,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:09:29,824 INFO L87 Difference]: Start difference. First operand 3236 states and 4392 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2022-12-13 16:09:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:30,306 INFO L93 Difference]: Finished difference Result 6356 states and 8591 transitions. [2022-12-13 16:09:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:09:30,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 212 [2022-12-13 16:09:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:30,315 INFO L225 Difference]: With dead ends: 6356 [2022-12-13 16:09:30,315 INFO L226 Difference]: Without dead ends: 3286 [2022-12-13 16:09:30,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:09:30,323 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 2130 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:30,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 2329 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:09:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2022-12-13 16:09:30,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3283. [2022-12-13 16:09:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 2246 states have (on average 1.2257346393588602) internal successors, (2753), 2350 states have internal predecessors, (2753), 785 states have call successors, (785), 211 states have call predecessors, (785), 241 states have return successors, (910), 766 states have call predecessors, (910), 783 states have call successors, (910) [2022-12-13 16:09:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4448 transitions. [2022-12-13 16:09:30,712 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4448 transitions. Word has length 212 [2022-12-13 16:09:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:30,712 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 4448 transitions. [2022-12-13 16:09:30,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2022-12-13 16:09:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4448 transitions. [2022-12-13 16:09:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 16:09:30,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:30,714 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1] [2022-12-13 16:09:30,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:09:30,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 16:09:30,917 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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)] === [2022-12-13 16:09:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 738085876, now seen corresponding path program 1 times [2022-12-13 16:09:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:30,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814284687] [2022-12-13 16:09:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:09:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:09:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:09:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:09:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:09:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:09:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:09:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:09:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:09:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:09:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:09:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:09:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:09:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:09:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:09:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:09:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:09:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:09:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:09:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:09:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:09:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 16:09:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:09:31,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:31,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814284687] [2022-12-13 16:09:31,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814284687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:31,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:09:31,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:09:31,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024832859] [2022-12-13 16:09:31,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:31,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:09:31,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:09:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:09:31,237 INFO L87 Difference]: Start difference. First operand 3283 states and 4448 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 16:09:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:09:35,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:09:37,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:09:48,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:48,125 INFO L93 Difference]: Finished difference Result 6430 states and 8793 transitions. [2022-12-13 16:09:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:09:48,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 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 175 [2022-12-13 16:09:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:48,138 INFO L225 Difference]: With dead ends: 6430 [2022-12-13 16:09:48,139 INFO L226 Difference]: Without dead ends: 6428 [2022-12-13 16:09:48,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:09:48,141 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 5653 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 6227 mSolverCounterSat, 3088 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5803 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 9316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3088 IncrementalHoareTripleChecker+Valid, 6227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:48,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5803 Valid, 2386 Invalid, 9316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3088 Valid, 6227 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2022-12-13 16:09:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2022-12-13 16:09:48,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 6393. [2022-12-13 16:09:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6393 states, 4379 states have (on average 1.2258506508335236) internal successors, (5368), 4571 states have internal predecessors, (5368), 1529 states have call successors, (1529), 413 states have call predecessors, (1529), 474 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2022-12-13 16:09:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6393 states to 6393 states and 8762 transitions. [2022-12-13 16:09:48,856 INFO L78 Accepts]: Start accepts. Automaton has 6393 states and 8762 transitions. Word has length 175 [2022-12-13 16:09:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:48,856 INFO L495 AbstractCegarLoop]: Abstraction has 6393 states and 8762 transitions. [2022-12-13 16:09:48,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 16:09:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6393 states and 8762 transitions. [2022-12-13 16:09:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-13 16:09:48,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:48,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:09:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 16:09:48,859 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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)] === [2022-12-13 16:09:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1145410384, now seen corresponding path program 1 times [2022-12-13 16:09:48,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:48,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622678055] [2022-12-13 16:09:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:48,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:09:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:09:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:09:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:09:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:09:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:09:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:09:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:09:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:09:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:09:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:09:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:09:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:09:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:09:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:09:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:09:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:09:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:09:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:09:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:09:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:09:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 16:09:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 16:09:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:09:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622678055] [2022-12-13 16:09:49,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622678055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:49,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:09:49,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:09:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435335421] [2022-12-13 16:09:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:49,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:09:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:09:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:09:49,147 INFO L87 Difference]: Start difference. First operand 6393 states and 8762 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 16:09:53,704 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 [] [2022-12-13 16:09:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:09:58,251 INFO L93 Difference]: Finished difference Result 6393 states and 8762 transitions. [2022-12-13 16:09:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:09:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 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 181 [2022-12-13 16:09:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:09:58,262 INFO L225 Difference]: With dead ends: 6393 [2022-12-13 16:09:58,263 INFO L226 Difference]: Without dead ends: 6391 [2022-12-13 16:09:58,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:09:58,265 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3585 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 3564 mSolverCounterSat, 1790 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3737 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 5355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 3564 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:09:58,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3737 Valid, 1831 Invalid, 5355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 3564 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-12-13 16:09:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states. [2022-12-13 16:09:59,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 6391. [2022-12-13 16:09:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 4378 states have (on average 1.2256738236637734) internal successors, (5366), 4569 states have internal predecessors, (5366), 1529 states have call successors, (1529), 413 states have call predecessors, (1529), 474 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2022-12-13 16:09:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 8760 transitions. [2022-12-13 16:09:59,027 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 8760 transitions. Word has length 181 [2022-12-13 16:09:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:09:59,027 INFO L495 AbstractCegarLoop]: Abstraction has 6391 states and 8760 transitions. [2022-12-13 16:09:59,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 16:09:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 8760 transitions. [2022-12-13 16:09:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-13 16:09:59,029 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:09:59,029 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 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] [2022-12-13 16:09:59,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 16:09:59,030 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)] === [2022-12-13 16:09:59,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:09:59,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1213700378, now seen corresponding path program 1 times [2022-12-13 16:09:59,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:09:59,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812641478] [2022-12-13 16:09:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:09:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:09:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:09:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:09:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:09:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:09:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:09:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:09:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:09:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:09:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:09:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:09:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:09:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:09:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:09:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:09:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:09:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:09:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 16:09:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:09:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:09:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:09:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:09:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:09:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-12-13 16:09:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:09:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-12-13 16:09:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:09:59,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812641478] [2022-12-13 16:09:59,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812641478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:09:59,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:09:59,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:09:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816797531] [2022-12-13 16:09:59,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:09:59,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:09:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:09:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:09:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:09:59,562 INFO L87 Difference]: Start difference. First operand 6391 states and 8760 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:10:06,777 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 [] [2022-12-13 16:10:11,267 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 [] [2022-12-13 16:10:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:18,335 INFO L93 Difference]: Finished difference Result 6933 states and 9623 transitions. [2022-12-13 16:10:18,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 16:10:18,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 233 [2022-12-13 16:10:18,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:18,349 INFO L225 Difference]: With dead ends: 6933 [2022-12-13 16:10:18,349 INFO L226 Difference]: Without dead ends: 6931 [2022-12-13 16:10:18,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-12-13 16:10:18,351 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 4741 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 7676 mSolverCounterSat, 2671 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 10349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2671 IncrementalHoareTripleChecker+Valid, 7676 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:18,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 2915 Invalid, 10349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2671 Valid, 7676 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2022-12-13 16:10:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2022-12-13 16:10:19,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6437. [2022-12-13 16:10:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6437 states, 4411 states have (on average 1.2230786669689413) internal successors, (5395), 4601 states have internal predecessors, (5395), 1529 states have call successors, (1529), 427 states have call predecessors, (1529), 488 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2022-12-13 16:10:19,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 8789 transitions. [2022-12-13 16:10:19,119 INFO L78 Accepts]: Start accepts. Automaton has 6437 states and 8789 transitions. Word has length 233 [2022-12-13 16:10:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:19,119 INFO L495 AbstractCegarLoop]: Abstraction has 6437 states and 8789 transitions. [2022-12-13 16:10:19,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:10:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 6437 states and 8789 transitions. [2022-12-13 16:10:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-13 16:10:19,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:19,121 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:19,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 16:10:19,122 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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)] === [2022-12-13 16:10:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1156765374, now seen corresponding path program 1 times [2022-12-13 16:10:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:19,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240022307] [2022-12-13 16:10:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:10:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:10:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:10:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:10:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:10:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:10:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:10:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:10:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:10:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 16:10:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 16:10:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 16:10:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 16:10:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 16:10:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 16:10:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 16:10:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 16:10:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 16:10:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 16:10:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 16:10:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 16:10:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:10:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 16:10:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:10:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 16:10:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 16:10:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 16:10:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-12-13 16:10:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 16:10:19,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:19,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240022307] [2022-12-13 16:10:19,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240022307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:19,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:19,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:10:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428453200] [2022-12-13 16:10:19,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:19,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:10:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:19,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:10:19,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:10:19,418 INFO L87 Difference]: Start difference. First operand 6437 states and 8789 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 16:10:23,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:25,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:32,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:37,658 INFO L93 Difference]: Finished difference Result 12738 states and 17653 transitions. [2022-12-13 16:10:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:10:37,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 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 187 [2022-12-13 16:10:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:37,702 INFO L225 Difference]: With dead ends: 12738 [2022-12-13 16:10:37,702 INFO L226 Difference]: Without dead ends: 12549 [2022-12-13 16:10:37,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:10:37,707 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 5628 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 6219 mSolverCounterSat, 3090 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5775 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 9311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3090 IncrementalHoareTripleChecker+Valid, 6219 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:37,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5775 Valid, 2386 Invalid, 9311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3090 Valid, 6219 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-12-13 16:10:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12549 states. [2022-12-13 16:10:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12549 to 12525. [2022-12-13 16:10:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12525 states, 8598 states have (on average 1.2248197255175621) internal successors, (10531), 8958 states have internal predecessors, (10531), 2971 states have call successors, (2971), 825 states have call predecessors, (2971), 947 states have return successors, (3905), 2905 states have call predecessors, (3905), 2967 states have call successors, (3905) [2022-12-13 16:10:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12525 states to 12525 states and 17407 transitions. [2022-12-13 16:10:39,256 INFO L78 Accepts]: Start accepts. Automaton has 12525 states and 17407 transitions. Word has length 187 [2022-12-13 16:10:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:39,256 INFO L495 AbstractCegarLoop]: Abstraction has 12525 states and 17407 transitions. [2022-12-13 16:10:39,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 16:10:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12525 states and 17407 transitions. [2022-12-13 16:10:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-13 16:10:39,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:39,258 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 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] [2022-12-13 16:10:39,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 16:10:39,258 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)] === [2022-12-13 16:10:39,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1928262299, now seen corresponding path program 1 times [2022-12-13 16:10:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:39,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018621026] [2022-12-13 16:10:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:39,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:10:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:10:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:10:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:10:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:10:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:10:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:10:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:10:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:10:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:10:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:10:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:10:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:10:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:10:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:10:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:10:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:10:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:10:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:10:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:10:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:10:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:10:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:10:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:10:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:10:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:10:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:10:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:10:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:10:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-12-13 16:10:39,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:39,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018621026] [2022-12-13 16:10:39,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018621026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:39,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:39,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:10:39,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111538474] [2022-12-13 16:10:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:39,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:10:39,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:10:39,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:10:39,550 INFO L87 Difference]: Start difference. First operand 12525 states and 17407 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:10:46,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:49,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:51,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:53,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:56,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:10:59,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:11:08,178 INFO L93 Difference]: Finished difference Result 28372 states and 41376 transitions. [2022-12-13 16:11:08,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 16:11:08,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 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 233 [2022-12-13 16:11:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:11:08,215 INFO L225 Difference]: With dead ends: 28372 [2022-12-13 16:11:08,215 INFO L226 Difference]: Without dead ends: 16251 [2022-12-13 16:11:08,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:11:08,248 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4514 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 8204 mSolverCounterSat, 3184 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4514 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 11392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3184 IncrementalHoareTripleChecker+Valid, 8204 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:11:08,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4514 Valid, 2920 Invalid, 11392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3184 Valid, 8204 Invalid, 4 Unknown, 0 Unchecked, 25.6s Time] [2022-12-13 16:11:08,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16251 states. [2022-12-13 16:11:10,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16251 to 13701. [2022-12-13 16:11:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13701 states, 9534 states have (on average 1.2447031676106566) internal successors, (11867), 9926 states have internal predecessors, (11867), 3179 states have call successors, (3179), 825 states have call predecessors, (3179), 979 states have return successors, (4233), 3113 states have call predecessors, (4233), 3175 states have call successors, (4233) [2022-12-13 16:11:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13701 states to 13701 states and 19279 transitions. [2022-12-13 16:11:10,103 INFO L78 Accepts]: Start accepts. Automaton has 13701 states and 19279 transitions. Word has length 233 [2022-12-13 16:11:10,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:11:10,104 INFO L495 AbstractCegarLoop]: Abstraction has 13701 states and 19279 transitions. [2022-12-13 16:11:10,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:11:10,104 INFO L276 IsEmpty]: Start isEmpty. Operand 13701 states and 19279 transitions. [2022-12-13 16:11:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-13 16:11:10,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:11:10,106 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 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] [2022-12-13 16:11:10,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 16:11:10,106 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)] === [2022-12-13 16:11:10,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:11:10,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2113549754, now seen corresponding path program 1 times [2022-12-13 16:11:10,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:11:10,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17720328] [2022-12-13 16:11:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:11:10,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:11:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:11:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:11:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:11:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:11:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:11:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:11:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:11:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:11:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:11:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:11:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:11:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:11:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:11:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:11:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:11:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:11:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:11:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-12-13 16:11:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:11:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:11:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:11:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-12-13 16:11:10,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:11:10,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17720328] [2022-12-13 16:11:10,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17720328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:11:10,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:11:10,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:11:10,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411824026] [2022-12-13 16:11:10,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:11:10,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:11:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:11:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:11:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:11:10,517 INFO L87 Difference]: Start difference. First operand 13701 states and 19279 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:11:15,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:19,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:23,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:26,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:28,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:39,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:11:40,461 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 [] [2022-12-13 16:11:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:11:51,044 INFO L93 Difference]: Finished difference Result 16866 states and 24031 transitions. [2022-12-13 16:11:51,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 16:11:51,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 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 222 [2022-12-13 16:11:51,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:11:51,076 INFO L225 Difference]: With dead ends: 16866 [2022-12-13 16:11:51,076 INFO L226 Difference]: Without dead ends: 16864 [2022-12-13 16:11:51,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2022-12-13 16:11:51,081 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 7686 mSDsluCounter, 4273 mSDsCounter, 0 mSdLazyCounter, 15170 mSolverCounterSat, 5481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7812 SdHoareTripleChecker+Valid, 5300 SdHoareTripleChecker+Invalid, 20653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5481 IncrementalHoareTripleChecker+Valid, 15170 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:11:51,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7812 Valid, 5300 Invalid, 20653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5481 Valid, 15170 Invalid, 2 Unknown, 0 Unchecked, 37.3s Time] [2022-12-13 16:11:51,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2022-12-13 16:11:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 15437. [2022-12-13 16:11:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 10838 states have (on average 1.2499538660269423) internal successors, (13547), 11240 states have internal predecessors, (13547), 3535 states have call successors, (3535), 829 states have call predecessors, (3535), 1055 states have return successors, (4823), 3545 states have call predecessors, (4823), 3531 states have call successors, (4823) [2022-12-13 16:11:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 21905 transitions. [2022-12-13 16:11:53,126 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 21905 transitions. Word has length 222 [2022-12-13 16:11:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:11:53,127 INFO L495 AbstractCegarLoop]: Abstraction has 15437 states and 21905 transitions. [2022-12-13 16:11:53,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-13 16:11:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 21905 transitions. [2022-12-13 16:11:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-12-13 16:11:53,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:11:53,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:11:53,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 16:11:53,130 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)] === [2022-12-13 16:11:53,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:11:53,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1792155272, now seen corresponding path program 1 times [2022-12-13 16:11:53,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:11:53,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132806258] [2022-12-13 16:11:53,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:11:53,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:11:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:11:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:11:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:11:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:11:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:11:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:11:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:11:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:11:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:11:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:11:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:11:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:11:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:11:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:11:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:11:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:11:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:11:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:11:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:11:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:11:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:11:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:11:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:11:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:11:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:11:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:11:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:11:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:11:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:11:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 16:11:53,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:11:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132806258] [2022-12-13 16:11:53,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132806258] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:11:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745494484] [2022-12-13 16:11:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:11:53,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:11:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:11:53,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:11:53,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:11:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:11:54,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 2440 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:11:54,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:11:54,703 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 [2022-12-13 16:11:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-12-13 16:11:54,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:11:54,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745494484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:11:54,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:11:54,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 16:11:54,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114048703] [2022-12-13 16:11:54,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:11:54,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:11:54,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:11:54,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:11:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:11:54,745 INFO L87 Difference]: Start difference. First operand 15437 states and 21905 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2022-12-13 16:11:58,780 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 [] [2022-12-13 16:12:00,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:04,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:07,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:09,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:12:13,401 INFO L93 Difference]: Finished difference Result 30958 states and 45129 transitions. [2022-12-13 16:12:13,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:12:13,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 282 [2022-12-13 16:12:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:12:13,436 INFO L225 Difference]: With dead ends: 30958 [2022-12-13 16:12:13,436 INFO L226 Difference]: Without dead ends: 15925 [2022-12-13 16:12:13,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:12:13,471 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 40 mSDsluCounter, 6198 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 8410 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:12:13,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 8410 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 470 Invalid, 4 Unknown, 0 Unchecked, 16.3s Time] [2022-12-13 16:12:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15925 states. [2022-12-13 16:12:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15925 to 15533. [2022-12-13 16:12:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15533 states, 10922 states have (on average 1.251327595678447) internal successors, (13667), 11324 states have internal predecessors, (13667), 3547 states have call successors, (3547), 829 states have call predecessors, (3547), 1055 states have return successors, (4835), 3557 states have call predecessors, (4835), 3543 states have call successors, (4835) [2022-12-13 16:12:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15533 states to 15533 states and 22049 transitions. [2022-12-13 16:12:15,608 INFO L78 Accepts]: Start accepts. Automaton has 15533 states and 22049 transitions. Word has length 282 [2022-12-13 16:12:15,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:12:15,609 INFO L495 AbstractCegarLoop]: Abstraction has 15533 states and 22049 transitions. [2022-12-13 16:12:15,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2022-12-13 16:12:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15533 states and 22049 transitions. [2022-12-13 16:12:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-12-13 16:12:15,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:12:15,612 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:12:15,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:12:15,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:12:15,814 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)] === [2022-12-13 16:12:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:12:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 364043038, now seen corresponding path program 1 times [2022-12-13 16:12:15,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:12:15,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584915773] [2022-12-13 16:12:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:12:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:12:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:12:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:12:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:12:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:12:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:12:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:12:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:12:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:12:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:12:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:12:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:12:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:12:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:12:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:12:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:12:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:12:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:12:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:12:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:12:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:12:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:12:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:12:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:12:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 16:12:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:12:16,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584915773] [2022-12-13 16:12:16,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584915773] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:12:16,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891957006] [2022-12-13 16:12:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:12:16,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:12:16,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:12:16,729 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:12:16,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:12:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:17,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:12:17,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:12:17,512 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 [2022-12-13 16:12:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-12-13 16:12:17,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:12:17,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891957006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:12:17,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:12:17,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 16:12:17,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984935165] [2022-12-13 16:12:17,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:12:17,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:12:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:12:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:12:17,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:12:17,546 INFO L87 Difference]: Start difference. First operand 15533 states and 22049 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2022-12-13 16:12:20,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:23,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:25,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:28,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:30,231 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 [] [2022-12-13 16:12:33,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:12:33,852 INFO L93 Difference]: Finished difference Result 31078 states and 45297 transitions. [2022-12-13 16:12:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:12:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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 283 [2022-12-13 16:12:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:12:33,888 INFO L225 Difference]: With dead ends: 31078 [2022-12-13 16:12:33,888 INFO L226 Difference]: Without dead ends: 15949 [2022-12-13 16:12:33,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:12:33,921 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 46 mSDsluCounter, 6208 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 8432 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:12:33,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 8432 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 482 Invalid, 4 Unknown, 0 Unchecked, 14.0s Time] [2022-12-13 16:12:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15949 states. [2022-12-13 16:12:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15949 to 15533. [2022-12-13 16:12:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15533 states, 10922 states have (on average 1.2502288958066288) internal successors, (13655), 11324 states have internal predecessors, (13655), 3547 states have call successors, (3547), 829 states have call predecessors, (3547), 1055 states have return successors, (4835), 3557 states have call predecessors, (4835), 3543 states have call successors, (4835) [2022-12-13 16:12:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15533 states to 15533 states and 22037 transitions. [2022-12-13 16:12:36,037 INFO L78 Accepts]: Start accepts. Automaton has 15533 states and 22037 transitions. Word has length 283 [2022-12-13 16:12:36,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:12:36,037 INFO L495 AbstractCegarLoop]: Abstraction has 15533 states and 22037 transitions. [2022-12-13 16:12:36,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2022-12-13 16:12:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15533 states and 22037 transitions. [2022-12-13 16:12:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-12-13 16:12:36,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:12:36,040 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:12:36,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:12:36,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 16:12:36,242 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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)] === [2022-12-13 16:12:36,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:12:36,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1533764279, now seen corresponding path program 1 times [2022-12-13 16:12:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:12:36,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431215205] [2022-12-13 16:12:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:12:36,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:12:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:12:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:12:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:12:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:12:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:12:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:12:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:12:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:12:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:12:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:12:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:12:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:12:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:12:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:12:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:12:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:12:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:12:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:12:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:12:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:12:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:12:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:12:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:12:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 16:12:37,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:12:37,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431215205] [2022-12-13 16:12:37,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431215205] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:12:37,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55429962] [2022-12-13 16:12:37,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:12:37,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:12:37,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:12:37,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:12:37,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:12:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:37,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 2449 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 16:12:37,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:12:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-12-13 16:12:37,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:12:37,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55429962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:12:37,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:12:37,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 16:12:37,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372671744] [2022-12-13 16:12:37,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:12:37,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:12:37,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:12:37,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:12:37,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-12-13 16:12:37,787 INFO L87 Difference]: Start difference. First operand 15533 states and 22037 transitions. Second operand has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2022-12-13 16:12:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:12:40,589 INFO L93 Difference]: Finished difference Result 25529 states and 35717 transitions. [2022-12-13 16:12:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:12:40,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 284 [2022-12-13 16:12:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:12:40,625 INFO L225 Difference]: With dead ends: 25529 [2022-12-13 16:12:40,625 INFO L226 Difference]: Without dead ends: 17921 [2022-12-13 16:12:40,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:12:40,639 INFO L413 NwaCegarLoop]: 2241 mSDtfsCounter, 288 mSDsluCounter, 6692 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 8933 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:12:40,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 8933 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:12:40,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17921 states. [2022-12-13 16:12:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17921 to 17057. [2022-12-13 16:12:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17057 states, 12074 states have (on average 1.2571641543813152) internal successors, (15179), 12512 states have internal predecessors, (15179), 3903 states have call successors, (3903), 837 states have call predecessors, (3903), 1071 states have return successors, (5200), 3909 states have call predecessors, (5200), 3899 states have call successors, (5200) [2022-12-13 16:12:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17057 states to 17057 states and 24282 transitions. [2022-12-13 16:12:43,194 INFO L78 Accepts]: Start accepts. Automaton has 17057 states and 24282 transitions. Word has length 284 [2022-12-13 16:12:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:12:43,194 INFO L495 AbstractCegarLoop]: Abstraction has 17057 states and 24282 transitions. [2022-12-13 16:12:43,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2022-12-13 16:12:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 17057 states and 24282 transitions. [2022-12-13 16:12:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-12-13 16:12:43,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:12:43,197 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:12:43,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 16:12:43,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 16:12:43,399 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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)] === [2022-12-13 16:12:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:12:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2074756183, now seen corresponding path program 1 times [2022-12-13 16:12:43,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:12:43,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538658407] [2022-12-13 16:12:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:12:43,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:12:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:12:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:12:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:12:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:12:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:12:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:12:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:12:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:12:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:12:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:12:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:12:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:12:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:12:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:12:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:12:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:12:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:12:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:12:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:12:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:12:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 16:12:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 16:12:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 16:12:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-12-13 16:12:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-12-13 16:12:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:12:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-12-13 16:12:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:12:43,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538658407] [2022-12-13 16:12:43,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538658407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:12:43,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:12:43,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:12:43,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19827907] [2022-12-13 16:12:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:12:43,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:12:43,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:12:43,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:12:43,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:12:43,705 INFO L87 Difference]: Start difference. First operand 17057 states and 24282 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-13 16:12:51,823 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 [] [2022-12-13 16:12:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:55,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:12:58,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:00,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:13:13,555 INFO L93 Difference]: Finished difference Result 41953 states and 62180 transitions. [2022-12-13 16:13:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:13:13,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 257 [2022-12-13 16:13:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:13:13,620 INFO L225 Difference]: With dead ends: 41953 [2022-12-13 16:13:13,620 INFO L226 Difference]: Without dead ends: 25299 [2022-12-13 16:13:13,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:13:13,653 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 5276 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 7747 mSolverCounterSat, 3834 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 11586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3834 IncrementalHoareTripleChecker+Valid, 7747 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:13:13,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 3765 Invalid, 11586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3834 Valid, 7747 Invalid, 5 Unknown, 0 Unchecked, 25.3s Time] [2022-12-13 16:13:13,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25299 states. [2022-12-13 16:13:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25299 to 19980. [2022-12-13 16:13:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19980 states, 14229 states have (on average 1.2549019607843137) internal successors, (17856), 14715 states have internal predecessors, (17856), 4455 states have call successors, (4455), 837 states have call predecessors, (4455), 1287 states have return successors, (6842), 4647 states have call predecessors, (6842), 4451 states have call successors, (6842) [2022-12-13 16:13:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19980 states to 19980 states and 29153 transitions. [2022-12-13 16:13:16,708 INFO L78 Accepts]: Start accepts. Automaton has 19980 states and 29153 transitions. Word has length 257 [2022-12-13 16:13:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:13:16,709 INFO L495 AbstractCegarLoop]: Abstraction has 19980 states and 29153 transitions. [2022-12-13 16:13:16,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-13 16:13:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 19980 states and 29153 transitions. [2022-12-13 16:13:16,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-12-13 16:13:16,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:13:16,712 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:13:16,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 16:13:16,712 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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)] === [2022-12-13 16:13:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:13:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1293197422, now seen corresponding path program 1 times [2022-12-13 16:13:16,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:13:16,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415070048] [2022-12-13 16:13:16,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:16,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:13:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:13:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:13:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:13:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:13:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:13:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:13:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:13:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:13:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:13:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:13:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:13:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:13:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:13:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:13:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:13:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:13:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:13:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:13:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:13:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:13:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:13:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 16:13:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 16:13:17,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:13:17,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415070048] [2022-12-13 16:13:17,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415070048] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:13:17,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396478502] [2022-12-13 16:13:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:17,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:13:17,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:13:17,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:13:17,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 16:13:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:18,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2473 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 16:13:18,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:13:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-12-13 16:13:18,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:13:18,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396478502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:13:18,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:13:18,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2022-12-13 16:13:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954385315] [2022-12-13 16:13:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:13:18,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 16:13:18,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:13:18,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 16:13:18,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2022-12-13 16:13:18,521 INFO L87 Difference]: Start difference. First operand 19980 states and 29153 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-12-13 16:13:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:13:22,206 INFO L93 Difference]: Finished difference Result 39893 states and 58212 transitions. [2022-12-13 16:13:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:13:22,207 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 290 [2022-12-13 16:13:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:13:22,264 INFO L225 Difference]: With dead ends: 39893 [2022-12-13 16:13:22,264 INFO L226 Difference]: Without dead ends: 19927 [2022-12-13 16:13:22,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=1368, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 16:13:22,319 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 87 mSDsluCounter, 34510 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 36674 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:13:22,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 36674 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:13:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19927 states. [2022-12-13 16:13:25,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19927 to 19927. [2022-12-13 16:13:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19927 states, 14197 states have (on average 1.2551947594562232) internal successors, (17820), 14679 states have internal predecessors, (17820), 4440 states have call successors, (4440), 831 states have call predecessors, (4440), 1281 states have return successors, (6827), 4634 states have call predecessors, (6827), 4436 states have call successors, (6827) [2022-12-13 16:13:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19927 states to 19927 states and 29087 transitions. [2022-12-13 16:13:25,443 INFO L78 Accepts]: Start accepts. Automaton has 19927 states and 29087 transitions. Word has length 290 [2022-12-13 16:13:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:13:25,443 INFO L495 AbstractCegarLoop]: Abstraction has 19927 states and 29087 transitions. [2022-12-13 16:13:25,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-12-13 16:13:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19927 states and 29087 transitions. [2022-12-13 16:13:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-12-13 16:13:25,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:13:25,446 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:13:25,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 16:13:25,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 16:13:25,648 INFO L420 AbstractCegarLoop]: === Iteration 38 === 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)] === [2022-12-13 16:13:25,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:13:25,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1509237744, now seen corresponding path program 1 times [2022-12-13 16:13:25,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:13:25,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709951061] [2022-12-13 16:13:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:25,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:13:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:13:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:13:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:13:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 16:13:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 16:13:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 16:13:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 16:13:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 16:13:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 16:13:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 16:13:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 16:13:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 16:13:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 16:13:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 16:13:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 16:13:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 16:13:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:13:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 16:13:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 16:13:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:13:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 16:13:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 16:13:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 16:13:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:13:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709951061] [2022-12-13 16:13:26,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709951061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:13:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043099537] [2022-12-13 16:13:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:26,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:13:26,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:13:26,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:13:26,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 16:13:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:27,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 16:13:27,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:13:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-12-13 16:13:27,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:13:27,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043099537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:13:27,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:13:27,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-12-13 16:13:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280814042] [2022-12-13 16:13:27,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:13:27,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:13:27,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:13:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:13:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:13:27,304 INFO L87 Difference]: Start difference. First operand 19927 states and 29087 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-13 16:13:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:13:31,180 INFO L93 Difference]: Finished difference Result 21732 states and 31472 transitions. [2022-12-13 16:13:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:13:31,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 290 [2022-12-13 16:13:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:13:31,220 INFO L225 Difference]: With dead ends: 21732 [2022-12-13 16:13:31,220 INFO L226 Difference]: Without dead ends: 19927 [2022-12-13 16:13:31,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:13:31,228 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 628 mSDsluCounter, 7663 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 9832 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:13:31,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 9832 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 16:13:31,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19927 states. [2022-12-13 16:13:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19927 to 19925. [2022-12-13 16:13:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19925 states, 14196 states have (on average 1.2551422936038321) internal successors, (17818), 14678 states have internal predecessors, (17818), 4439 states have call successors, (4439), 831 states have call predecessors, (4439), 1281 states have return successors, (6826), 4633 states have call predecessors, (6826), 4435 states have call successors, (6826) [2022-12-13 16:13:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19925 states to 19925 states and 29083 transitions. [2022-12-13 16:13:34,477 INFO L78 Accepts]: Start accepts. Automaton has 19925 states and 29083 transitions. Word has length 290 [2022-12-13 16:13:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:13:34,477 INFO L495 AbstractCegarLoop]: Abstraction has 19925 states and 29083 transitions. [2022-12-13 16:13:34,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-13 16:13:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 19925 states and 29083 transitions. [2022-12-13 16:13:34,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-12-13 16:13:34,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:13:34,479 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:13:34,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 16:13:34,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 16:13:34,681 INFO L420 AbstractCegarLoop]: === Iteration 39 === 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)] === [2022-12-13 16:13:34,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:13:34,683 INFO L85 PathProgramCache]: Analyzing trace with hash 675812894, now seen corresponding path program 1 times [2022-12-13 16:13:34,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:13:34,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662909893] [2022-12-13 16:13:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:13:34,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:13:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:13:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:13:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:13:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:13:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:13:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:13:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:34,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:13:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:13:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:13:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:13:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:13:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:13:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:13:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:13:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:13:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:13:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:13:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:13:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:13:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:13:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:13:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:13:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-12-13 16:13:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 16:13:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 16:13:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 16:13:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 16:13:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-12-13 16:13:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-12-13 16:13:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:13:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-12-13 16:13:35,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:13:35,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662909893] [2022-12-13 16:13:35,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662909893] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:13:35,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:13:35,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 16:13:35,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916871376] [2022-12-13 16:13:35,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:13:35,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:13:35,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:13:35,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:13:35,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:13:35,164 INFO L87 Difference]: Start difference. First operand 19925 states and 29083 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 16:13:39,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:41,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:49,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:51,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:53,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:55,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:57,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:13:59,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:14:19,956 INFO L93 Difference]: Finished difference Result 45428 states and 70431 transitions. [2022-12-13 16:14:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:14:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 316 [2022-12-13 16:14:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:14:20,032 INFO L225 Difference]: With dead ends: 45428 [2022-12-13 16:14:20,032 INFO L226 Difference]: Without dead ends: 25853 [2022-12-13 16:14:20,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:14:20,092 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 6249 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 12991 mSolverCounterSat, 4589 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6249 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 17587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4589 IncrementalHoareTripleChecker+Valid, 12991 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:14:20,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6249 Valid, 3988 Invalid, 17587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4589 Valid, 12991 Invalid, 7 Unknown, 0 Unchecked, 40.1s Time] [2022-12-13 16:14:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25853 states. [2022-12-13 16:14:23,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25853 to 19949. [2022-12-13 16:14:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19949 states, 14220 states have (on average 1.2547116736990154) internal successors, (17842), 14702 states have internal predecessors, (17842), 4439 states have call successors, (4439), 831 states have call predecessors, (4439), 1281 states have return successors, (6826), 4633 states have call predecessors, (6826), 4435 states have call successors, (6826) [2022-12-13 16:14:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19949 states to 19949 states and 29107 transitions. [2022-12-13 16:14:23,227 INFO L78 Accepts]: Start accepts. Automaton has 19949 states and 29107 transitions. Word has length 316 [2022-12-13 16:14:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:14:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 19949 states and 29107 transitions. [2022-12-13 16:14:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 16:14:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 19949 states and 29107 transitions. [2022-12-13 16:14:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-12-13 16:14:23,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:14:23,229 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:23,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 16:14:23,229 INFO L420 AbstractCegarLoop]: === Iteration 40 === 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)] === [2022-12-13 16:14:23,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash 923959388, now seen corresponding path program 1 times [2022-12-13 16:14:23,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:23,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401282671] [2022-12-13 16:14:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:14:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:14:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:14:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:14:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:14:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:14:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:14:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:14:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:14:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:14:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:14:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:14:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:14:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:14:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:14:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:14:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:14:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:14:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:14:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:14:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:14:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:14:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:14:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:14:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:14:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:14:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:14:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:14:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:14:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:14:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:14:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:14:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:14:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-12-13 16:14:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 16:14:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 16:14:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 16:14:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 16:14:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-12-13 16:14:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-12-13 16:14:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-12-13 16:14:23,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:23,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401282671] [2022-12-13 16:14:23,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401282671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:23,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:23,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 16:14:23,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756010562] [2022-12-13 16:14:23,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:23,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:14:23,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:23,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:14:23,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:14:23,747 INFO L87 Difference]: Start difference. First operand 19949 states and 29107 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 16:14:28,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:30,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:32,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:40,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:45,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:47,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:14:50,828 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 [] [2022-12-13 16:15:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:15:04,402 INFO L93 Difference]: Finished difference Result 25821 states and 39381 transitions. [2022-12-13 16:15:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:15:04,403 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 316 [2022-12-13 16:15:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:15:04,464 INFO L225 Difference]: With dead ends: 25821 [2022-12-13 16:15:04,464 INFO L226 Difference]: Without dead ends: 25819 [2022-12-13 16:15:04,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:15:04,474 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 6379 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 12818 mSolverCounterSat, 4656 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6379 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 17479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4656 IncrementalHoareTripleChecker+Valid, 12818 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:15:04,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6379 Valid, 3991 Invalid, 17479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4656 Valid, 12818 Invalid, 5 Unknown, 0 Unchecked, 36.0s Time] [2022-12-13 16:15:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25819 states. [2022-12-13 16:15:07,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25819 to 19947. [2022-12-13 16:15:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19947 states, 14219 states have (on average 1.2541669597018075) internal successors, (17833), 14700 states have internal predecessors, (17833), 4439 states have call successors, (4439), 831 states have call predecessors, (4439), 1281 states have return successors, (6826), 4633 states have call predecessors, (6826), 4435 states have call successors, (6826) [2022-12-13 16:15:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19947 states to 19947 states and 29098 transitions. [2022-12-13 16:15:07,589 INFO L78 Accepts]: Start accepts. Automaton has 19947 states and 29098 transitions. Word has length 316 [2022-12-13 16:15:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:15:07,589 INFO L495 AbstractCegarLoop]: Abstraction has 19947 states and 29098 transitions. [2022-12-13 16:15:07,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 16:15:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19947 states and 29098 transitions. [2022-12-13 16:15:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-12-13 16:15:07,592 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:15:07,592 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:07,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 16:15:07,592 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:15:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash 190447110, now seen corresponding path program 1 times [2022-12-13 16:15:07,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:15:07,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377481468] [2022-12-13 16:15:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:15:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:15:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:15:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:15:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:15:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:15:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:15:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:15:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:15:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:15:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:15:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:15:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:15:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:15:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:15:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:15:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-12-13 16:15:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-12-13 16:15:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-12-13 16:15:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-12-13 16:15:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-12-13 16:15:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 16:15:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-12-13 16:15:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 16:15:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 16:15:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-12-13 16:15:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-12-13 16:15:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:15:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-12-13 16:15:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 6 proven. 67 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-12-13 16:15:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:15:09,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377481468] [2022-12-13 16:15:09,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377481468] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:15:09,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748474086] [2022-12-13 16:15:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:09,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:15:09,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:15:09,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:15:09,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 16:15:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:09,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 16:15:10,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:15:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2022-12-13 16:15:10,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:15:10,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748474086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:15:10,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:15:10,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 27 [2022-12-13 16:15:10,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150978136] [2022-12-13 16:15:10,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:15:10,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 16:15:10,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:15:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 16:15:10,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:15:10,285 INFO L87 Difference]: Start difference. First operand 19947 states and 29098 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2022-12-13 16:15:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:15:14,912 INFO L93 Difference]: Finished difference Result 41077 states and 59918 transitions. [2022-12-13 16:15:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:15:14,912 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) Word has length 320 [2022-12-13 16:15:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:15:14,972 INFO L225 Difference]: With dead ends: 41077 [2022-12-13 16:15:14,972 INFO L226 Difference]: Without dead ends: 21648 [2022-12-13 16:15:15,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=1126, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 16:15:15,016 INFO L413 NwaCegarLoop]: 2273 mSDtfsCounter, 1672 mSDsluCounter, 28097 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 30370 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:15:15,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 30370 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 16:15:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21648 states. [2022-12-13 16:15:18,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21648 to 19895. [2022-12-13 16:15:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19895 states, 14179 states have (on average 1.252909231962762) internal successors, (17765), 14656 states have internal predecessors, (17765), 4431 states have call successors, (4431), 827 states have call predecessors, (4431), 1277 states have return successors, (6783), 4629 states have call predecessors, (6783), 4427 states have call successors, (6783) [2022-12-13 16:15:18,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19895 states to 19895 states and 28979 transitions. [2022-12-13 16:15:18,313 INFO L78 Accepts]: Start accepts. Automaton has 19895 states and 28979 transitions. Word has length 320 [2022-12-13 16:15:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:15:18,314 INFO L495 AbstractCegarLoop]: Abstraction has 19895 states and 28979 transitions. [2022-12-13 16:15:18,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2022-12-13 16:15:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 19895 states and 28979 transitions. [2022-12-13 16:15:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-12-13 16:15:18,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:15:18,316 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:18,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 16:15:18,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:15:18,518 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:15:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1883444695, now seen corresponding path program 1 times [2022-12-13 16:15:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:15:18,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022428366] [2022-12-13 16:15:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:15:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:15:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:15:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:15:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:15:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:15:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:15:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:15:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:15:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:15:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:15:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:15:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:15:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:15:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:15:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:15:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-12-13 16:15:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 16:15:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 16:15:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-12-13 16:15:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-12-13 16:15:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 16:15:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 16:15:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-12-13 16:15:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-12-13 16:15:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:15:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-12-13 16:15:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-12-13 16:15:19,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:15:19,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022428366] [2022-12-13 16:15:19,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022428366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:15:19,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:15:19,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:15:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63447971] [2022-12-13 16:15:19,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:15:19,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:15:19,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:15:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:15:19,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:15:19,248 INFO L87 Difference]: Start difference. First operand 19895 states and 28979 transitions. Second operand has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 16:15:23,913 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 [] [2022-12-13 16:15:25,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:40,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:41,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:43,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:45,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:47,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:15:49,724 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 [] [2022-12-13 16:15:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:15:53,001 INFO L93 Difference]: Finished difference Result 31041 states and 44640 transitions. [2022-12-13 16:15:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 16:15:53,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 351 [2022-12-13 16:15:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:15:53,026 INFO L225 Difference]: With dead ends: 31041 [2022-12-13 16:15:53,027 INFO L226 Difference]: Without dead ends: 11676 [2022-12-13 16:15:53,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:15:53,059 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 3768 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 11167 mSolverCounterSat, 2936 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3768 SdHoareTripleChecker+Valid, 4980 SdHoareTripleChecker+Invalid, 14109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2936 IncrementalHoareTripleChecker+Valid, 11167 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:15:53,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3768 Valid, 4980 Invalid, 14109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2936 Valid, 11167 Invalid, 6 Unknown, 0 Unchecked, 30.7s Time] [2022-12-13 16:15:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11676 states. [2022-12-13 16:15:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11676 to 8936. [2022-12-13 16:15:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8936 states, 6055 states have (on average 1.2042939719240298) internal successors, (7292), 6271 states have internal predecessors, (7292), 2213 states have call successors, (2213), 643 states have call predecessors, (2213), 660 states have return successors, (2281), 2144 states have call predecessors, (2281), 2209 states have call successors, (2281) [2022-12-13 16:15:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8936 states to 8936 states and 11786 transitions. [2022-12-13 16:15:54,635 INFO L78 Accepts]: Start accepts. Automaton has 8936 states and 11786 transitions. Word has length 351 [2022-12-13 16:15:54,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:15:54,635 INFO L495 AbstractCegarLoop]: Abstraction has 8936 states and 11786 transitions. [2022-12-13 16:15:54,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 16:15:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8936 states and 11786 transitions. [2022-12-13 16:15:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-12-13 16:15:54,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:15:54,638 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:54,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 16:15:54,639 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:15:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash -591237921, now seen corresponding path program 1 times [2022-12-13 16:15:54,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:15:54,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267579489] [2022-12-13 16:15:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:54,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:15:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:15:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:15:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:15:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:15:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:15:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:15:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:15:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:15:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:15:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:15:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:15:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:15:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:15:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:15:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:54,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:15:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:15:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:15:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-12-13 16:15:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-12-13 16:15:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:15:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:15:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:15:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-12-13 16:15:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-12-13 16:15:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-12-13 16:15:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-12-13 16:15:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-12-13 16:15:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-12-13 16:15:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-12-13 16:15:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-12-13 16:15:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-12-13 16:15:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-12-13 16:15:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-12-13 16:15:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-12-13 16:15:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-12-13 16:15:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:15:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-12-13 16:15:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-12-13 16:15:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:15:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-12-13 16:15:55,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:15:55,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267579489] [2022-12-13 16:15:55,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267579489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:15:55,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:15:55,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 16:15:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713960388] [2022-12-13 16:15:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:15:55,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:15:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:15:55,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:15:55,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:15:55,169 INFO L87 Difference]: Start difference. First operand 8936 states and 11786 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 16:15:58,872 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 [] [2022-12-13 16:16:00,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:09,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:14,216 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 [] [2022-12-13 16:16:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:17,175 INFO L93 Difference]: Finished difference Result 20070 states and 27178 transitions. [2022-12-13 16:16:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:16:17,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 430 [2022-12-13 16:16:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:17,200 INFO L225 Difference]: With dead ends: 20070 [2022-12-13 16:16:17,200 INFO L226 Difference]: Without dead ends: 11211 [2022-12-13 16:16:17,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:16:17,214 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 3951 mSDsluCounter, 3081 mSDsCounter, 0 mSdLazyCounter, 6562 mSolverCounterSat, 3089 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4044 SdHoareTripleChecker+Valid, 4149 SdHoareTripleChecker+Invalid, 9655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3089 IncrementalHoareTripleChecker+Valid, 6562 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:16:17,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4044 Valid, 4149 Invalid, 9655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3089 Valid, 6562 Invalid, 4 Unknown, 0 Unchecked, 19.6s Time] [2022-12-13 16:16:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-12-13 16:16:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 8938. [2022-12-13 16:16:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 6057 states have (on average 1.2042265147762918) internal successors, (7294), 6273 states have internal predecessors, (7294), 2213 states have call successors, (2213), 643 states have call predecessors, (2213), 660 states have return successors, (2281), 2144 states have call predecessors, (2281), 2209 states have call successors, (2281) [2022-12-13 16:16:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 11788 transitions. [2022-12-13 16:16:18,788 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 11788 transitions. Word has length 430 [2022-12-13 16:16:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 8938 states and 11788 transitions. [2022-12-13 16:16:18,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 16:16:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 11788 transitions. [2022-12-13 16:16:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-12-13 16:16:18,792 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:18,792 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:18,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 16:16:18,793 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:16:18,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1354792385, now seen corresponding path program 1 times [2022-12-13 16:16:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:18,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584430944] [2022-12-13 16:16:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:16:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:16:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:16:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:16:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:16:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:16:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:16:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:16:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:16:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:16:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:16:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:16:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:16:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:16:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:16:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-12-13 16:16:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-12-13 16:16:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-12-13 16:16:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-12-13 16:16:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-12-13 16:16:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-12-13 16:16:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-12-13 16:16:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-12-13 16:16:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-12-13 16:16:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-12-13 16:16:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-12-13 16:16:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-12-13 16:16:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-12-13 16:16:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-12-13 16:16:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-12-13 16:16:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-12-13 16:16:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-12-13 16:16:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-12-13 16:16:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-12-13 16:16:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2022-12-13 16:16:19,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:19,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584430944] [2022-12-13 16:16:19,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584430944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:16:19,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:16:19,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:16:19,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488661691] [2022-12-13 16:16:19,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:19,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:16:19,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:19,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:16:19,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:16:19,322 INFO L87 Difference]: Start difference. First operand 8938 states and 11788 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-13 16:16:22,899 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 [] [2022-12-13 16:16:24,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:26,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:33,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:34,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:16:36,315 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 [] [2022-12-13 16:16:38,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:38,918 INFO L93 Difference]: Finished difference Result 19325 states and 25967 transitions. [2022-12-13 16:16:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:16:38,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 443 [2022-12-13 16:16:38,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:38,940 INFO L225 Difference]: With dead ends: 19325 [2022-12-13 16:16:38,940 INFO L226 Difference]: Without dead ends: 10467 [2022-12-13 16:16:38,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:16:38,955 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 4175 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 3738 mSolverCounterSat, 2515 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 6257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2515 IncrementalHoareTripleChecker+Valid, 3738 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:16:38,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4353 Valid, 2161 Invalid, 6257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2515 Valid, 3738 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2022-12-13 16:16:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-12-13 16:16:40,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 8938. [2022-12-13 16:16:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 6057 states have (on average 1.204061416542843) internal successors, (7293), 6273 states have internal predecessors, (7293), 2213 states have call successors, (2213), 643 states have call predecessors, (2213), 660 states have return successors, (2281), 2144 states have call predecessors, (2281), 2209 states have call successors, (2281) [2022-12-13 16:16:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 11787 transitions. [2022-12-13 16:16:40,720 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 11787 transitions. Word has length 443 [2022-12-13 16:16:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:40,721 INFO L495 AbstractCegarLoop]: Abstraction has 8938 states and 11787 transitions. [2022-12-13 16:16:40,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-13 16:16:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 11787 transitions. [2022-12-13 16:16:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-12-13 16:16:40,724 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:40,724 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:40,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 16:16:40,724 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:16:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -13668225, now seen corresponding path program 1 times [2022-12-13 16:16:40,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:40,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283585697] [2022-12-13 16:16:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:16:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:16:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:16:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:16:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:16:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:16:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:16:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:16:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:16:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:16:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:16:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:16:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:16:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:16:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 16:16:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:16:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:16:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-12-13 16:16:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-12-13 16:16:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-12-13 16:16:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-12-13 16:16:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:16:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:16:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:16:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-12-13 16:16:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-12-13 16:16:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-12-13 16:16:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-12-13 16:16:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-12-13 16:16:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-12-13 16:16:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-12-13 16:16:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-12-13 16:16:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-12-13 16:16:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-12-13 16:16:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-12-13 16:16:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-12-13 16:16:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-12-13 16:16:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:16:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-12-13 16:16:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-12-13 16:16:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-12-13 16:16:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:42,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283585697] [2022-12-13 16:16:42,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283585697] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:16:42,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324515403] [2022-12-13 16:16:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:42,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:42,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:42,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:16:42,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 16:16:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:43,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 3473 conjuncts, 97 conjunts are in the unsatisfiable core [2022-12-13 16:16:43,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:16:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-12-13 16:16:43,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:16:43,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324515403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:16:43,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:16:43,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 16 [2022-12-13 16:16:43,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974700133] [2022-12-13 16:16:43,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:43,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:16:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:43,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:16:43,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:16:43,177 INFO L87 Difference]: Start difference. First operand 8938 states and 11787 transitions. Second operand has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-13 16:16:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:45,061 INFO L93 Difference]: Finished difference Result 18253 states and 24139 transitions. [2022-12-13 16:16:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:16:45,062 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) Word has length 443 [2022-12-13 16:16:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:45,080 INFO L225 Difference]: With dead ends: 18253 [2022-12-13 16:16:45,081 INFO L226 Difference]: Without dead ends: 9356 [2022-12-13 16:16:45,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-12-13 16:16:45,094 INFO L413 NwaCegarLoop]: 1810 mSDtfsCounter, 157 mSDsluCounter, 14361 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 16171 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:16:45,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 16171 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:16:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9356 states. [2022-12-13 16:16:46,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9356 to 8949. [2022-12-13 16:16:46,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 6065 states have (on average 1.2037922506183016) internal successors, (7301), 6281 states have internal predecessors, (7301), 2214 states have call successors, (2214), 643 states have call predecessors, (2214), 662 states have return successors, (2287), 2147 states have call predecessors, (2287), 2210 states have call successors, (2287) [2022-12-13 16:16:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11802 transitions. [2022-12-13 16:16:46,687 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11802 transitions. Word has length 443 [2022-12-13 16:16:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:46,688 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11802 transitions. [2022-12-13 16:16:46,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-13 16:16:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11802 transitions. [2022-12-13 16:16:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-12-13 16:16:46,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:46,691 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:46,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 16:16:46,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-12-13 16:16:46,894 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:16:46,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:46,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1505586076, now seen corresponding path program 1 times [2022-12-13 16:16:46,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:46,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837828582] [2022-12-13 16:16:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:46,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:46,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:16:46,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790048789] [2022-12-13 16:16:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:46,998 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:16:46,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 16:16:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:48,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 3545 conjuncts, 89 conjunts are in the unsatisfiable core [2022-12-13 16:16:48,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:16:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2022-12-13 16:16:48,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:16:48,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:48,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837828582] [2022-12-13 16:16:48,238 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:16:48,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790048789] [2022-12-13 16:16:48,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790048789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:16:48,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:16:48,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 16:16:48,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792757187] [2022-12-13 16:16:48,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:48,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:16:48,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:48,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:16:48,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:16:48,240 INFO L87 Difference]: Start difference. First operand 8949 states and 11802 transitions. Second operand has 10 states, 10 states have (on average 17.4) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (59), 5 states have call predecessors, (59), 3 states have call successors, (59) [2022-12-13 16:16:50,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:50,129 INFO L93 Difference]: Finished difference Result 18261 states and 24148 transitions. [2022-12-13 16:16:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:16:50,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (59), 5 states have call predecessors, (59), 3 states have call successors, (59) Word has length 464 [2022-12-13 16:16:50,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:50,148 INFO L225 Difference]: With dead ends: 18261 [2022-12-13 16:16:50,148 INFO L226 Difference]: Without dead ends: 9364 [2022-12-13 16:16:50,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:16:50,160 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 161 mSDsluCounter, 16124 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 18172 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:16:50,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 18172 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:16:50,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9364 states. [2022-12-13 16:16:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9364 to 8951. [2022-12-13 16:16:51,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8951 states, 6067 states have (on average 1.2037250700510962) internal successors, (7303), 6282 states have internal predecessors, (7303), 2214 states have call successors, (2214), 643 states have call predecessors, (2214), 662 states have return successors, (2287), 2148 states have call predecessors, (2287), 2210 states have call successors, (2287) [2022-12-13 16:16:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 11804 transitions. [2022-12-13 16:16:51,761 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 11804 transitions. Word has length 464 [2022-12-13 16:16:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:51,762 INFO L495 AbstractCegarLoop]: Abstraction has 8951 states and 11804 transitions. [2022-12-13 16:16:51,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (59), 5 states have call predecessors, (59), 3 states have call successors, (59) [2022-12-13 16:16:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 11804 transitions. [2022-12-13 16:16:51,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-12-13 16:16:51,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:51,766 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:51,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 16:16:51,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:51,967 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:16:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:51,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1907815569, now seen corresponding path program 2 times [2022-12-13 16:16:51,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:51,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068917908] [2022-12-13 16:16:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:51,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:52,068 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:16:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057876154] [2022-12-13 16:16:52,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:16:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:52,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:52,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:16:52,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 16:16:53,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:16:53,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:16:53,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 3617 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-13 16:16:53,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:16:53,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-12-13 16:16:53,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:16:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2022-12-13 16:16:53,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:53,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068917908] [2022-12-13 16:16:53,929 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:16:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057876154] [2022-12-13 16:16:53,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057876154] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 16:16:53,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 16:16:53,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2022-12-13 16:16:53,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911150812] [2022-12-13 16:16:53,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:53,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:16:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:53,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:16:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-12-13 16:16:53,931 INFO L87 Difference]: Start difference. First operand 8951 states and 11804 transitions. Second operand has 9 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-13 16:16:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:57,388 INFO L93 Difference]: Finished difference Result 20487 states and 27638 transitions. [2022-12-13 16:16:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:16:57,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 485 [2022-12-13 16:16:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:57,412 INFO L225 Difference]: With dead ends: 20487 [2022-12-13 16:16:57,412 INFO L226 Difference]: Without dead ends: 11624 [2022-12-13 16:16:57,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 951 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-12-13 16:16:57,428 INFO L413 NwaCegarLoop]: 2730 mSDtfsCounter, 875 mSDsluCounter, 17300 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 20030 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:16:57,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 20030 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 16:16:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11624 states. [2022-12-13 16:16:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11624 to 8749. [2022-12-13 16:16:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8749 states, 5934 states have (on average 1.2039096730704415) internal successors, (7144), 6146 states have internal predecessors, (7144), 2153 states have call successors, (2153), 633 states have call predecessors, (2153), 654 states have return successors, (2226), 2088 states have call predecessors, (2226), 2149 states have call successors, (2226) [2022-12-13 16:16:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8749 states to 8749 states and 11523 transitions. [2022-12-13 16:16:59,213 INFO L78 Accepts]: Start accepts. Automaton has 8749 states and 11523 transitions. Word has length 485 [2022-12-13 16:16:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:59,213 INFO L495 AbstractCegarLoop]: Abstraction has 8749 states and 11523 transitions. [2022-12-13 16:16:59,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 4 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-13 16:16:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8749 states and 11523 transitions. [2022-12-13 16:16:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-12-13 16:16:59,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:59,217 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:59,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 16:16:59,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-12-13 16:16:59,420 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:16:59,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1321539347, now seen corresponding path program 1 times [2022-12-13 16:16:59,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:59,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703422376] [2022-12-13 16:16:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:59,514 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:16:59,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219346971] [2022-12-13 16:16:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:59,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:16:59,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 16:17:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:00,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 3618 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 16:17:00,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-12-13 16:17:01,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:17:01,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:01,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703422376] [2022-12-13 16:17:01,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:17:01,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219346971] [2022-12-13 16:17:01,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219346971] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:01,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:01,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:17:01,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804408967] [2022-12-13 16:17:01,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:01,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:17:01,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:01,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:17:01,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:17:01,164 INFO L87 Difference]: Start difference. First operand 8749 states and 11523 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-13 16:17:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:06,220 INFO L93 Difference]: Finished difference Result 17323 states and 22747 transitions. [2022-12-13 16:17:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:17:06,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 485 [2022-12-13 16:17:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:06,253 INFO L225 Difference]: With dead ends: 17323 [2022-12-13 16:17:06,254 INFO L226 Difference]: Without dead ends: 17321 [2022-12-13 16:17:06,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:17:06,259 INFO L413 NwaCegarLoop]: 3568 mSDtfsCounter, 3066 mSDsluCounter, 6271 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 9839 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:06,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3066 Valid, 9839 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 16:17:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17321 states. [2022-12-13 16:17:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17321 to 16623. [2022-12-13 16:17:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16623 states, 11314 states have (on average 1.2097401449531553) internal successors, (13687), 11724 states have internal predecessors, (13687), 4068 states have call successors, (4068), 1191 states have call predecessors, (4068), 1233 states have return successors, (4216), 3935 states have call predecessors, (4216), 4064 states have call successors, (4216) [2022-12-13 16:17:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16623 states to 16623 states and 21971 transitions. [2022-12-13 16:17:09,640 INFO L78 Accepts]: Start accepts. Automaton has 16623 states and 21971 transitions. Word has length 485 [2022-12-13 16:17:09,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:09,641 INFO L495 AbstractCegarLoop]: Abstraction has 16623 states and 21971 transitions. [2022-12-13 16:17:09,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-13 16:17:09,641 INFO L276 IsEmpty]: Start isEmpty. Operand 16623 states and 21971 transitions. [2022-12-13 16:17:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-12-13 16:17:09,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:09,646 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:09,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 16:17:09,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-12-13 16:17:09,848 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-13 16:17:09,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1700696222, now seen corresponding path program 1 times [2022-12-13 16:17:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:09,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120043277] [2022-12-13 16:17:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:09,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:09,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:17:09,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807121614] [2022-12-13 16:17:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:09,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:17:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:17:09,964 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:17:09,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 16:17:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:10,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 4199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:17:10,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2022-12-13 16:17:10,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:17:10,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:10,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120043277] [2022-12-13 16:17:10,909 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:17:10,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807121614] [2022-12-13 16:17:10,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807121614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:10,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:10,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:10,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138720230] [2022-12-13 16:17:10,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:10,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:10,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:10,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:10,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:10,910 INFO L87 Difference]: Start difference. First operand 16623 states and 21971 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-12-13 16:17:12,977 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 [] [2022-12-13 16:17:15,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 16:17:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:18,181 INFO L93 Difference]: Finished difference Result 24884 states and 32818 transitions. [2022-12-13 16:17:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:18,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 493 [2022-12-13 16:17:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:18,222 INFO L225 Difference]: With dead ends: 24884 [2022-12-13 16:17:18,222 INFO L226 Difference]: Without dead ends: 16678 [2022-12-13 16:17:18,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:18,238 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 29 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:18,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3483 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 2 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 16:17:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16678 states. [2022-12-13 16:17:21,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16678 to 16623. [2022-12-13 16:17:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16623 states, 11314 states have (on average 1.2096517588828) internal successors, (13686), 11724 states have internal predecessors, (13686), 4068 states have call successors, (4068), 1191 states have call predecessors, (4068), 1233 states have return successors, (4216), 3935 states have call predecessors, (4216), 4064 states have call successors, (4216) [2022-12-13 16:17:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16623 states to 16623 states and 21970 transitions. [2022-12-13 16:17:21,579 INFO L78 Accepts]: Start accepts. Automaton has 16623 states and 21970 transitions. Word has length 493 [2022-12-13 16:17:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:21,580 INFO L495 AbstractCegarLoop]: Abstraction has 16623 states and 21970 transitions. [2022-12-13 16:17:21,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-12-13 16:17:21,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16623 states and 21970 transitions. [2022-12-13 16:17:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-12-13 16:17:21,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:21,585 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:21,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 16:17:21,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f92614-f628-476c-b520-781b9afb43a7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-12-13 16:17:21,787 INFO L420 AbstractCegarLoop]: === Iteration 50 === 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)] === [2022-12-13 16:17:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:21,788 INFO L85 PathProgramCache]: Analyzing trace with hash -272048237, now seen corresponding path program 1 times [2022-12-13 16:17:21,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042049480] [2022-12-13 16:17:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:21,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:17:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 16:17:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 16:17:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:17:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 16:17:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:17:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:17:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 16:17:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:17:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:17:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 16:17:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:17:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:17:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 16:17:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:17:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:17:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 16:17:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 16:17:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:17:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 16:17:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 16:17:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 16:17:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 16:17:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 16:17:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 16:17:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 16:17:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 16:17:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 16:17:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 16:17:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 16:17:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-12-13 16:17:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-12-13 16:17:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-12-13 16:17:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-12-13 16:17:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-12-13 16:17:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 16:17:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-12-13 16:17:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat