./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--usb--misc--uss720.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_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:48:59,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:48:59,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:48:59,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:48:59,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:48:59,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:48:59,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:48:59,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:48:59,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:48:59,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:48:59,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:48:59,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:48:59,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:48:59,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:48:59,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:48:59,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:48:59,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:48:59,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:48:59,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:48:59,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:48:59,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:48:59,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:48:59,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:48:59,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:48:59,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:48:59,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:48:59,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:48:59,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:48:59,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:48:59,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:48:59,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:48:59,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:48:59,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:48:59,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:48:59,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:48:59,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:48:59,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:48:59,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:48:59,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:48:59,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:48:59,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:48:59,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:48:59,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:48:59,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:48:59,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:48:59,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:48:59,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:48:59,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:48:59,352 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:48:59,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:48:59,352 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:48:59,362 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:48:59,362 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:48:59,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:48:59,363 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:48:59,363 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:48:59,363 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:48:59,363 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:48:59,363 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:48:59,364 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:48:59,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:48:59,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:48:59,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:48:59,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:48:59,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:48:59,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:48:59,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:48:59,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:48:59,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:48:59,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:48:59,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:48:59,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:48:59,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:48:59,367 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:48:59,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:48:59,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:48:59,367 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:48:59,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:48:59,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:48:59,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:48:59,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2022-12-14 14:48:59,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:48:59,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:48:59,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:48:59,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:48:59,566 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:48:59,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-12-14 14:49:02,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:49:02,468 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:49:02,468 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-12-14 14:49:02,498 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/data/e9c63cb68/bbd882f60d2b4375b7b937fd2e6a1960/FLAG5401d5114 [2022-12-14 14:49:02,510 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/data/e9c63cb68/bbd882f60d2b4375b7b937fd2e6a1960 [2022-12-14 14:49:02,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:49:02,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:49:02,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:49:02,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:49:02,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:49:02,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:49:02" (1/1) ... [2022-12-14 14:49:02,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18836200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:02, skipping insertion in model container [2022-12-14 14:49:02,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:49:02" (1/1) ... [2022-12-14 14:49:02,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:49:02,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:49:03,266 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:49:03,275 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 14:49:03,286 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:03,365 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:49:03,398 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:03,406 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:03,520 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_interrupt [2022-12-14 14:49:03,538 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,538 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:03,543 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:03,544 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:03,548 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,550 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 14:49:03,555 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,556 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,560 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,565 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 14:49:03,572 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,574 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,575 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,580 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:03,587 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-14 14:49:03,651 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:03,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,665 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:03,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,670 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:03,670 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,678 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:03,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,685 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,686 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 14:49:03,687 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,688 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:03,689 WARN L623 FunctionHandler]: Unknown extern function parport_register_port [2022-12-14 14:49:03,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,692 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,693 WARN L623 FunctionHandler]: Unknown extern function parport_announce_port [2022-12-14 14:49:03,698 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,700 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,700 WARN L623 FunctionHandler]: Unknown extern function parport_remove_port [2022-12-14 14:49:03,700 WARN L623 FunctionHandler]: Unknown extern function parport_put_port [2022-12-14 14:49:03,701 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:03,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:03,831 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_read_byte [2022-12-14 14:49:03,832 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_read_nibble [2022-12-14 14:49:03,845 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:03,848 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:03,849 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:03,850 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:03,850 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-12-14 14:49:03,851 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 14:49:03,852 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 14:49:03,853 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:49:04,125 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:04,249 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:49:04,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-12-14 14:49:04,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-12-14 14:49:04,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-12-14 14:49:04,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-12-14 14:49:04,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-12-14 14:49:04,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-12-14 14:49:04,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-12-14 14:49:04,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-12-14 14:49:04,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-12-14 14:49:04,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-12-14 14:49:04,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-12-14 14:49:04,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-12-14 14:49:04,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-12-14 14:49:04,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-12-14 14:49:04,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-12-14 14:49:04,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-12-14 14:49:04,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-12-14 14:49:04,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-12-14 14:49:04,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-12-14 14:49:04,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-12-14 14:49:04,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-12-14 14:49:04,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-12-14 14:49:04,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-12-14 14:49:04,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-12-14 14:49:04,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-12-14 14:49:04,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-12-14 14:49:04,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-12-14 14:49:04,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-12-14 14:49:04,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-12-14 14:49:04,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-12-14 14:49:04,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-12-14 14:49:04,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-12-14 14:49:04,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-12-14 14:49:04,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-12-14 14:49:04,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-12-14 14:49:04,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-12-14 14:49:04,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-12-14 14:49:04,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-12-14 14:49:04,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-12-14 14:49:04,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-12-14 14:49:04,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-12-14 14:49:04,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-12-14 14:49:04,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-12-14 14:49:04,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-12-14 14:49:04,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-12-14 14:49:04,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-12-14 14:49:04,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-12-14 14:49:04,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-12-14 14:49:04,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-12-14 14:49:04,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-12-14 14:49:04,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-12-14 14:49:04,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-12-14 14:49:04,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-12-14 14:49:04,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-12-14 14:49:04,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-12-14 14:49:04,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-12-14 14:49:04,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-12-14 14:49:04,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-12-14 14:49:04,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-12-14 14:49:04,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-12-14 14:49:04,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-12-14 14:49:04,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-12-14 14:49:04,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-12-14 14:49:04,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-12-14 14:49:04,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-12-14 14:49:04,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-12-14 14:49:04,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-12-14 14:49:04,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-12-14 14:49:04,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-12-14 14:49:04,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-12-14 14:49:04,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-12-14 14:49:04,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-12-14 14:49:04,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-12-14 14:49:04,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-12-14 14:49:04,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-12-14 14:49:04,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-12-14 14:49:04,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-12-14 14:49:04,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-12-14 14:49:04,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-12-14 14:49:04,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-12-14 14:49:04,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-12-14 14:49:04,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-12-14 14:49:04,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-12-14 14:49:04,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-12-14 14:49:04,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-12-14 14:49:04,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-12-14 14:49:04,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-12-14 14:49:04,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-12-14 14:49:04,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:49:04,577 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:49:04,659 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:49:04,660 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 14:49:04,660 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:04,662 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:49:04,663 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:04,664 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:04,672 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_interrupt [2022-12-14 14:49:04,675 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,676 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:04,677 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:04,677 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:04,678 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,679 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 14:49:04,681 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,682 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,684 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,685 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 14:49:04,687 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,690 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:04,693 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-14 14:49:04,703 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:04,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,707 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:04,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,708 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:04,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,710 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 14:49:04,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,713 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,714 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 14:49:04,715 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,716 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:04,717 WARN L623 FunctionHandler]: Unknown extern function parport_register_port [2022-12-14 14:49:04,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,718 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,720 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,720 WARN L623 FunctionHandler]: Unknown extern function parport_announce_port [2022-12-14 14:49:04,722 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,724 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,724 WARN L623 FunctionHandler]: Unknown extern function parport_remove_port [2022-12-14 14:49:04,724 WARN L623 FunctionHandler]: Unknown extern function parport_put_port [2022-12-14 14:49:04,726 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:49:04,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:04,733 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_read_byte [2022-12-14 14:49:04,734 WARN L623 FunctionHandler]: Unknown extern function parport_ieee1284_read_nibble [2022-12-14 14:49:04,744 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:04,745 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:04,746 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:04,746 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:04,746 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-12-14 14:49:04,747 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 14:49:04,747 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 14:49:04,748 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:49:04,763 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:04,771 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:49:04,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-12-14 14:49:04,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-12-14 14:49:04,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-12-14 14:49:04,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-12-14 14:49:04,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-12-14 14:49:04,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-12-14 14:49:04,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-12-14 14:49:04,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-12-14 14:49:04,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-12-14 14:49:04,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-12-14 14:49:04,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-12-14 14:49:04,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-12-14 14:49:04,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-12-14 14:49:04,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-12-14 14:49:04,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-12-14 14:49:04,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-12-14 14:49:04,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-12-14 14:49:04,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-12-14 14:49:04,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-12-14 14:49:04,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-12-14 14:49:04,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-12-14 14:49:04,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-12-14 14:49:04,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-12-14 14:49:04,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-12-14 14:49:04,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-12-14 14:49:04,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-12-14 14:49:04,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-12-14 14:49:04,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-12-14 14:49:04,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-12-14 14:49:04,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-12-14 14:49:04,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-12-14 14:49:04,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-12-14 14:49:04,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-12-14 14:49:04,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-12-14 14:49:04,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-12-14 14:49:04,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-12-14 14:49:04,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-12-14 14:49:04,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-12-14 14:49:04,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-12-14 14:49:04,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-12-14 14:49:04,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-12-14 14:49:04,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-12-14 14:49:04,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-12-14 14:49:04,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-12-14 14:49:04,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-12-14 14:49:04,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-12-14 14:49:04,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-12-14 14:49:04,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-12-14 14:49:04,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-12-14 14:49:04,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-12-14 14:49:04,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-12-14 14:49:04,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-12-14 14:49:04,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-12-14 14:49:04,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-12-14 14:49:04,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-12-14 14:49:04,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-12-14 14:49:04,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-12-14 14:49:04,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-12-14 14:49:04,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-12-14 14:49:04,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-12-14 14:49:04,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-12-14 14:49:04,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-12-14 14:49:04,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-12-14 14:49:04,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-12-14 14:49:04,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-12-14 14:49:04,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-12-14 14:49:04,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-12-14 14:49:04,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-12-14 14:49:04,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-12-14 14:49:04,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-12-14 14:49:04,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-12-14 14:49:04,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-12-14 14:49:04,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-12-14 14:49:04,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-12-14 14:49:04,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-12-14 14:49:04,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-12-14 14:49:04,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-12-14 14:49:04,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-12-14 14:49:04,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-12-14 14:49:04,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-12-14 14:49:04,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-12-14 14:49:04,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-12-14 14:49:04,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-12-14 14:49:04,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-12-14 14:49:04,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-12-14 14:49:04,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-12-14 14:49:04,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-12-14 14:49:04,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-12-14 14:49:04,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:49:04,922 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:49:04,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04 WrapperNode [2022-12-14 14:49:04,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:49:04,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:49:04,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:49:04,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:49:04,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:04,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,055 INFO L138 Inliner]: procedures = 516, calls = 1379, calls flagged for inlining = 239, calls inlined = 169, statements flattened = 3173 [2022-12-14 14:49:05,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:49:05,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:49:05,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:49:05,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:49:05,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:49:05,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:49:05,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:49:05,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:49:05,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (1/1) ... [2022-12-14 14:49:05,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:49:05,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:49:05,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:49:05,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:49:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-12-14 14:49:05,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 14:49:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 14:49:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_status [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_status [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_data [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_data [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 14:49:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 14:49:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2022-12-14 14:49:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2022-12-14 14:49:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_dev_usb_put_dev [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_dev_usb_put_dev [2022-12-14 14:49:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 14:49:05,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_1284_register [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure get_1284_register [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-12-14 14:49:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:49:05,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_control [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_control [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:49:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 14:49:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 14:49:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_async_requests_priv [2022-12-14 14:49:05,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_async_requests_priv [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:49:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:49:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 14:49:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 14:49:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-12-14 14:49:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-12-14 14:49:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:49:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:49:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 14:49:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 14:49:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:49:05,640 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:49:05,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:49:06,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:49:07,538 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:49:07,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:49:07,938 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:49:07,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:49:07 BoogieIcfgContainer [2022-12-14 14:49:07,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:49:07,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:49:07,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:49:07,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:49:07,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:49:02" (1/3) ... [2022-12-14 14:49:07,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505e73fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:49:07, skipping insertion in model container [2022-12-14 14:49:07,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:04" (2/3) ... [2022-12-14 14:49:07,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505e73fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:49:07, skipping insertion in model container [2022-12-14 14:49:07,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:49:07" (3/3) ... [2022-12-14 14:49:07,948 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-12-14 14:49:07,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:49:07,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-14 14:49:08,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:49:08,023 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55b74a67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:49:08,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-14 14:49:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) [2022-12-14 14:49:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 14:49:08,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:08,039 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:08,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:08,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1506776054, now seen corresponding path program 1 times [2022-12-14 14:49:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:08,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717436394] [2022-12-14 14:49:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:08,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:08,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:08,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717436394] [2022-12-14 14:49:08,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717436394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:08,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:08,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894239748] [2022-12-14 14:49:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:08,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:08,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:08,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:08,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:08,675 INFO L87 Difference]: Start difference. First operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 14:49:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:09,500 INFO L93 Difference]: Finished difference Result 1669 states and 2443 transitions. [2022-12-14 14:49:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:09,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-12-14 14:49:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:09,517 INFO L225 Difference]: With dead ends: 1669 [2022-12-14 14:49:09,518 INFO L226 Difference]: Without dead ends: 842 [2022-12-14 14:49:09,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:09,528 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 1123 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:09,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1956 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:49:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-12-14 14:49:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-12-14 14:49:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 491 states have (on average 1.2993890020366599) internal successors, (638), 536 states have internal predecessors, (638), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1130 transitions. [2022-12-14 14:49:09,610 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1130 transitions. Word has length 51 [2022-12-14 14:49:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:09,611 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1130 transitions. [2022-12-14 14:49:09,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 14:49:09,612 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1130 transitions. [2022-12-14 14:49:09,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 14:49:09,613 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:09,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:09,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:49:09,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:09,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:09,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1811387279, now seen corresponding path program 1 times [2022-12-14 14:49:09,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:09,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764721679] [2022-12-14 14:49:09,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:09,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:09,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:09,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764721679] [2022-12-14 14:49:09,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764721679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:09,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:09,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:09,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392914237] [2022-12-14 14:49:09,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:09,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:09,838 INFO L87 Difference]: Start difference. First operand 842 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:49:10,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:10,603 INFO L93 Difference]: Finished difference Result 842 states and 1130 transitions. [2022-12-14 14:49:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:10,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 14:49:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:10,607 INFO L225 Difference]: With dead ends: 842 [2022-12-14 14:49:10,608 INFO L226 Difference]: Without dead ends: 840 [2022-12-14 14:49:10,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:10,609 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 1105 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:10,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1924 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:49:10,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-12-14 14:49:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2022-12-14 14:49:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 490 states have (on average 1.2979591836734694) internal successors, (636), 534 states have internal predecessors, (636), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1128 transitions. [2022-12-14 14:49:10,645 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1128 transitions. Word has length 56 [2022-12-14 14:49:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:10,646 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1128 transitions. [2022-12-14 14:49:10,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:49:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1128 transitions. [2022-12-14 14:49:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 14:49:10,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:10,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:10,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:49:10,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:10,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:10,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1444559743, now seen corresponding path program 1 times [2022-12-14 14:49:10,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:10,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921947361] [2022-12-14 14:49:10,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:10,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:10,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:10,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921947361] [2022-12-14 14:49:10,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921947361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:10,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:10,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:10,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647021249] [2022-12-14 14:49:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:10,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:10,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:10,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:10,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:10,920 INFO L87 Difference]: Start difference. First operand 840 states and 1128 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:49:11,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:11,565 INFO L93 Difference]: Finished difference Result 840 states and 1128 transitions. [2022-12-14 14:49:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:11,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 14:49:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:11,572 INFO L225 Difference]: With dead ends: 840 [2022-12-14 14:49:11,572 INFO L226 Difference]: Without dead ends: 838 [2022-12-14 14:49:11,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:11,573 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 1102 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:11,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1920 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:11,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-12-14 14:49:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-12-14 14:49:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 489 states have (on average 1.296523517382413) internal successors, (634), 532 states have internal predecessors, (634), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1126 transitions. [2022-12-14 14:49:11,606 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1126 transitions. Word has length 61 [2022-12-14 14:49:11,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:11,606 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1126 transitions. [2022-12-14 14:49:11,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:49:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1126 transitions. [2022-12-14 14:49:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 14:49:11,608 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:11,608 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:11,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:49:11,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:11,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:11,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1534732691, now seen corresponding path program 1 times [2022-12-14 14:49:11,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:11,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73001810] [2022-12-14 14:49:11,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:11,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:11,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:11,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73001810] [2022-12-14 14:49:11,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73001810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:11,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:11,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:11,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173239370] [2022-12-14 14:49:11,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:11,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:11,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:11,780 INFO L87 Difference]: Start difference. First operand 838 states and 1126 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:49:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:12,482 INFO L93 Difference]: Finished difference Result 838 states and 1126 transitions. [2022-12-14 14:49:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-12-14 14:49:12,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:12,488 INFO L225 Difference]: With dead ends: 838 [2022-12-14 14:49:12,488 INFO L226 Difference]: Without dead ends: 836 [2022-12-14 14:49:12,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:12,489 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 1099 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:12,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1916 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-12-14 14:49:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 836. [2022-12-14 14:49:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 488 states have (on average 1.2950819672131149) internal successors, (632), 530 states have internal predecessors, (632), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1124 transitions. [2022-12-14 14:49:12,535 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1124 transitions. Word has length 66 [2022-12-14 14:49:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:12,535 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1124 transitions. [2022-12-14 14:49:12,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 14:49:12,536 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1124 transitions. [2022-12-14 14:49:12,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 14:49:12,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:12,538 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:12,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:49:12,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:12,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1399886641, now seen corresponding path program 1 times [2022-12-14 14:49:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:12,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549054370] [2022-12-14 14:49:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:12,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:12,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:12,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549054370] [2022-12-14 14:49:12,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549054370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:12,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:12,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849593345] [2022-12-14 14:49:12,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:12,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:12,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:12,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:12,711 INFO L87 Difference]: Start difference. First operand 836 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:49:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:13,432 INFO L93 Difference]: Finished difference Result 836 states and 1124 transitions. [2022-12-14 14:49:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:13,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 14:49:13,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:13,438 INFO L225 Difference]: With dead ends: 836 [2022-12-14 14:49:13,438 INFO L226 Difference]: Without dead ends: 834 [2022-12-14 14:49:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:13,439 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 1096 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:13,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1912 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:49:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-12-14 14:49:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2022-12-14 14:49:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 487 states have (on average 1.2936344969199178) internal successors, (630), 528 states have internal predecessors, (630), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1122 transitions. [2022-12-14 14:49:13,502 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1122 transitions. Word has length 71 [2022-12-14 14:49:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:13,503 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1122 transitions. [2022-12-14 14:49:13,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 14:49:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1122 transitions. [2022-12-14 14:49:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 14:49:13,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:13,504 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:13,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:49:13,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:13,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:13,505 INFO L85 PathProgramCache]: Analyzing trace with hash -156761325, now seen corresponding path program 1 times [2022-12-14 14:49:13,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:13,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703784023] [2022-12-14 14:49:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:13,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:13,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:13,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703784023] [2022-12-14 14:49:13,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703784023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:13,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:13,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:13,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306573006] [2022-12-14 14:49:13,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:13,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:13,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:13,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:13,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:13,677 INFO L87 Difference]: Start difference. First operand 834 states and 1122 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:49:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:14,371 INFO L93 Difference]: Finished difference Result 834 states and 1122 transitions. [2022-12-14 14:49:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:14,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-12-14 14:49:14,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:14,374 INFO L225 Difference]: With dead ends: 834 [2022-12-14 14:49:14,374 INFO L226 Difference]: Without dead ends: 832 [2022-12-14 14:49:14,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:14,375 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 1093 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:14,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1908 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:14,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-12-14 14:49:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-12-14 14:49:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 486 states have (on average 1.2921810699588476) internal successors, (628), 526 states have internal predecessors, (628), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1120 transitions. [2022-12-14 14:49:14,410 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1120 transitions. Word has length 76 [2022-12-14 14:49:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:14,410 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1120 transitions. [2022-12-14 14:49:14,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:49:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1120 transitions. [2022-12-14 14:49:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 14:49:14,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:14,411 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:14,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:49:14,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash 990378297, now seen corresponding path program 1 times [2022-12-14 14:49:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:14,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384721845] [2022-12-14 14:49:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:14,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:14,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384721845] [2022-12-14 14:49:14,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384721845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:14,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:14,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255325872] [2022-12-14 14:49:14,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:14,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:14,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:14,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:14,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:14,608 INFO L87 Difference]: Start difference. First operand 832 states and 1120 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 14:49:15,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:15,265 INFO L93 Difference]: Finished difference Result 832 states and 1120 transitions. [2022-12-14 14:49:15,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:15,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2022-12-14 14:49:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:15,269 INFO L225 Difference]: With dead ends: 832 [2022-12-14 14:49:15,269 INFO L226 Difference]: Without dead ends: 830 [2022-12-14 14:49:15,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:15,270 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1090 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:15,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1904 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:15,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-12-14 14:49:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2022-12-14 14:49:15,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 485 states have (on average 1.2907216494845362) internal successors, (626), 524 states have internal predecessors, (626), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-12-14 14:49:15,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1118 transitions. [2022-12-14 14:49:15,308 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1118 transitions. Word has length 81 [2022-12-14 14:49:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:15,308 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1118 transitions. [2022-12-14 14:49:15,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 14:49:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1118 transitions. [2022-12-14 14:49:15,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 14:49:15,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:15,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:15,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:49:15,311 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash 287099453, now seen corresponding path program 1 times [2022-12-14 14:49:15,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:15,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913304982] [2022-12-14 14:49:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:15,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:15,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913304982] [2022-12-14 14:49:15,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913304982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:15,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:15,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:15,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010828699] [2022-12-14 14:49:15,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:15,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:15,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:15,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:15,494 INFO L87 Difference]: Start difference. First operand 830 states and 1118 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:16,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:16,662 INFO L93 Difference]: Finished difference Result 1598 states and 2221 transitions. [2022-12-14 14:49:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:49:16,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-12-14 14:49:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:16,672 INFO L225 Difference]: With dead ends: 1598 [2022-12-14 14:49:16,672 INFO L226 Difference]: Without dead ends: 1596 [2022-12-14 14:49:16,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:16,673 INFO L413 NwaCegarLoop]: 1219 mSDtfsCounter, 1084 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:16,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 3390 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 14:49:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2022-12-14 14:49:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1474. [2022-12-14 14:49:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 873 states have (on average 1.2989690721649485) internal successors, (1134), 922 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-12-14 14:49:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2097 transitions. [2022-12-14 14:49:16,788 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2097 transitions. Word has length 86 [2022-12-14 14:49:16,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:16,789 INFO L495 AbstractCegarLoop]: Abstraction has 1474 states and 2097 transitions. [2022-12-14 14:49:16,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2097 transitions. [2022-12-14 14:49:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 14:49:16,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:16,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:16,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:49:16,791 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:16,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:16,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1488239492, now seen corresponding path program 1 times [2022-12-14 14:49:16,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:16,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140646905] [2022-12-14 14:49:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-12-14 14:49:17,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:17,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140646905] [2022-12-14 14:49:17,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140646905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:17,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:17,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:49:17,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89361240] [2022-12-14 14:49:17,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:17,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:49:17,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:17,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:49:17,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:49:17,362 INFO L87 Difference]: Start difference. First operand 1474 states and 2097 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:49:19,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:19,226 INFO L93 Difference]: Finished difference Result 1474 states and 2097 transitions. [2022-12-14 14:49:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:49:19,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2022-12-14 14:49:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:19,231 INFO L225 Difference]: With dead ends: 1474 [2022-12-14 14:49:19,231 INFO L226 Difference]: Without dead ends: 1472 [2022-12-14 14:49:19,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:49:19,233 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 1071 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:19,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 3311 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 14:49:19,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-12-14 14:49:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-12-14 14:49:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 872 states have (on average 1.2970183486238531) internal successors, (1131), 920 states have internal predecessors, (1131), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-12-14 14:49:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2094 transitions. [2022-12-14 14:49:19,334 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2094 transitions. Word has length 97 [2022-12-14 14:49:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:19,335 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2094 transitions. [2022-12-14 14:49:19,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:49:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2094 transitions. [2022-12-14 14:49:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 14:49:19,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:19,337 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:19,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:49:19,337 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1024816800, now seen corresponding path program 1 times [2022-12-14 14:49:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:19,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394769530] [2022-12-14 14:49:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:19,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:19,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394769530] [2022-12-14 14:49:19,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394769530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:19,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:19,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:19,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793696394] [2022-12-14 14:49:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:19,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:19,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:19,501 INFO L87 Difference]: Start difference. First operand 1472 states and 2094 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:20,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:20,210 INFO L93 Difference]: Finished difference Result 1472 states and 2094 transitions. [2022-12-14 14:49:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:20,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-12-14 14:49:20,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:20,215 INFO L225 Difference]: With dead ends: 1472 [2022-12-14 14:49:20,215 INFO L226 Difference]: Without dead ends: 1470 [2022-12-14 14:49:20,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:20,216 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 1083 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:20,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1896 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-12-14 14:49:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2022-12-14 14:49:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2950631458094144) internal successors, (1128), 918 states have internal predecessors, (1128), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-12-14 14:49:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2091 transitions. [2022-12-14 14:49:20,298 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2091 transitions. Word has length 88 [2022-12-14 14:49:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:20,299 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 2091 transitions. [2022-12-14 14:49:20,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2091 transitions. [2022-12-14 14:49:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 14:49:20,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:20,300 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:20,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:49:20,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:20,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1534236199, now seen corresponding path program 1 times [2022-12-14 14:49:20,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:20,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255443519] [2022-12-14 14:49:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-12-14 14:49:20,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:20,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255443519] [2022-12-14 14:49:20,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255443519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:20,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:20,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:49:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305133473] [2022-12-14 14:49:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:20,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:49:20,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:49:20,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:20,709 INFO L87 Difference]: Start difference. First operand 1470 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 14:49:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:22,123 INFO L93 Difference]: Finished difference Result 2885 states and 4234 transitions. [2022-12-14 14:49:22,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:49:22,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 97 [2022-12-14 14:49:22,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:22,130 INFO L225 Difference]: With dead ends: 2885 [2022-12-14 14:49:22,130 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 14:49:22,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:22,136 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 2 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:22,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3825 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 14:49:22,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 14:49:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1478. [2022-12-14 14:49:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 877 states have (on average 1.2930444697833523) internal successors, (1134), 924 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-12-14 14:49:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2101 transitions. [2022-12-14 14:49:22,233 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2101 transitions. Word has length 97 [2022-12-14 14:49:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:22,233 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 2101 transitions. [2022-12-14 14:49:22,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 14:49:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2101 transitions. [2022-12-14 14:49:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 14:49:22,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:22,235 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:22,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:49:22,235 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:22,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1713821595, now seen corresponding path program 1 times [2022-12-14 14:49:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:22,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433757636] [2022-12-14 14:49:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:22,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-12-14 14:49:22,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:22,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433757636] [2022-12-14 14:49:22,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433757636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:22,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:22,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:49:22,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151029835] [2022-12-14 14:49:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:22,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:22,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:22,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:22,382 INFO L87 Difference]: Start difference. First operand 1478 states and 2101 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:49:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:22,912 INFO L93 Difference]: Finished difference Result 2912 states and 4389 transitions. [2022-12-14 14:49:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 103 [2022-12-14 14:49:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:22,918 INFO L225 Difference]: With dead ends: 2912 [2022-12-14 14:49:22,919 INFO L226 Difference]: Without dead ends: 1472 [2022-12-14 14:49:22,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:22,924 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 1064 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:22,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 944 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:49:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-12-14 14:49:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-12-14 14:49:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 872 states have (on average 1.290137614678899) internal successors, (1125), 918 states have internal predecessors, (1125), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-12-14 14:49:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2092 transitions. [2022-12-14 14:49:23,030 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2092 transitions. Word has length 103 [2022-12-14 14:49:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:23,031 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2092 transitions. [2022-12-14 14:49:23,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:49:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2092 transitions. [2022-12-14 14:49:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 14:49:23,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:23,032 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:23,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:49:23,033 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:23,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash -254759881, now seen corresponding path program 1 times [2022-12-14 14:49:23,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:23,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250053015] [2022-12-14 14:49:23,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:23,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:23,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250053015] [2022-12-14 14:49:23,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250053015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:23,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:23,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:23,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964041944] [2022-12-14 14:49:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:23,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:23,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:23,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:23,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:23,194 INFO L87 Difference]: Start difference. First operand 1472 states and 2092 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:49:23,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:23,997 INFO L93 Difference]: Finished difference Result 1472 states and 2092 transitions. [2022-12-14 14:49:23,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:23,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-12-14 14:49:23,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:24,003 INFO L225 Difference]: With dead ends: 1472 [2022-12-14 14:49:24,003 INFO L226 Difference]: Without dead ends: 1470 [2022-12-14 14:49:24,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:24,004 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 1077 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:24,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1882 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:49:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-12-14 14:49:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2022-12-14 14:49:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2893226176808266) internal successors, (1123), 916 states have internal predecessors, (1123), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-12-14 14:49:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2090 transitions. [2022-12-14 14:49:24,109 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2090 transitions. Word has length 93 [2022-12-14 14:49:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:24,109 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 2090 transitions. [2022-12-14 14:49:24,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 14:49:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2090 transitions. [2022-12-14 14:49:24,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-14 14:49:24,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:24,110 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:24,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:49:24,111 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:24,111 INFO L85 PathProgramCache]: Analyzing trace with hash -9283236, now seen corresponding path program 1 times [2022-12-14 14:49:24,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:24,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543646857] [2022-12-14 14:49:24,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:24,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 14:49:25,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:25,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543646857] [2022-12-14 14:49:25,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543646857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:25,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:25,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:49:25,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948711985] [2022-12-14 14:49:25,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:25,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:49:25,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:25,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:49:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:49:25,310 INFO L87 Difference]: Start difference. First operand 1470 states and 2090 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:49:29,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:29,596 INFO L93 Difference]: Finished difference Result 2885 states and 4141 transitions. [2022-12-14 14:49:29,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 14:49:29,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-12-14 14:49:29,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:29,604 INFO L225 Difference]: With dead ends: 2885 [2022-12-14 14:49:29,605 INFO L226 Difference]: Without dead ends: 2883 [2022-12-14 14:49:29,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:49:29,606 INFO L413 NwaCegarLoop]: 1335 mSDtfsCounter, 1110 mSDsluCounter, 5054 mSDsCounter, 0 mSdLazyCounter, 3827 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:29,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 6389 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3827 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 14:49:29,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-12-14 14:49:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2554. [2022-12-14 14:49:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1533 states have (on average 1.3007175472928898) internal successors, (1994), 1600 states have internal predecessors, (1994), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2022-12-14 14:49:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3660 transitions. [2022-12-14 14:49:29,792 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3660 transitions. Word has length 125 [2022-12-14 14:49:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:29,792 INFO L495 AbstractCegarLoop]: Abstraction has 2554 states and 3660 transitions. [2022-12-14 14:49:29,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:49:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3660 transitions. [2022-12-14 14:49:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 14:49:29,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:29,794 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:29,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:49:29,794 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:29,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash 398318815, now seen corresponding path program 1 times [2022-12-14 14:49:29,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:29,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610597587] [2022-12-14 14:49:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:29,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:29,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610597587] [2022-12-14 14:49:29,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610597587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:29,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:29,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:29,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987003058] [2022-12-14 14:49:29,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:29,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:29,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:29,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:29,956 INFO L87 Difference]: Start difference. First operand 2554 states and 3660 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:49:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:30,839 INFO L93 Difference]: Finished difference Result 2554 states and 3660 transitions. [2022-12-14 14:49:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:30,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-12-14 14:49:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:30,847 INFO L225 Difference]: With dead ends: 2554 [2022-12-14 14:49:30,847 INFO L226 Difference]: Without dead ends: 2552 [2022-12-14 14:49:30,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:30,848 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1074 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1878 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:30,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2022-12-14 14:49:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2022-12-14 14:49:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1532 states have (on average 1.3002610966057442) internal successors, (1992), 1598 states have internal predecessors, (1992), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2022-12-14 14:49:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3658 transitions. [2022-12-14 14:49:31,088 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3658 transitions. Word has length 98 [2022-12-14 14:49:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:31,088 INFO L495 AbstractCegarLoop]: Abstraction has 2552 states and 3658 transitions. [2022-12-14 14:49:31,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 14:49:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3658 transitions. [2022-12-14 14:49:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 14:49:31,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:31,089 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:31,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:49:31,090 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:31,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:31,090 INFO L85 PathProgramCache]: Analyzing trace with hash -331112193, now seen corresponding path program 1 times [2022-12-14 14:49:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:31,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324778374] [2022-12-14 14:49:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 14:49:32,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:32,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324778374] [2022-12-14 14:49:32,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324778374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:32,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:32,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 14:49:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142629806] [2022-12-14 14:49:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:32,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:49:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:32,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:49:32,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:49:32,029 INFO L87 Difference]: Start difference. First operand 2552 states and 3658 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:49:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:36,160 INFO L93 Difference]: Finished difference Result 4081 states and 5880 transitions. [2022-12-14 14:49:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 14:49:36,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-12-14 14:49:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:36,172 INFO L225 Difference]: With dead ends: 4081 [2022-12-14 14:49:36,172 INFO L226 Difference]: Without dead ends: 4079 [2022-12-14 14:49:36,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:49:36,174 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 1168 mSDsluCounter, 5249 mSDsCounter, 0 mSdLazyCounter, 4016 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 6654 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:36,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 6654 Invalid, 4026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 14:49:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2022-12-14 14:49:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3697. [2022-12-14 14:49:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.3071748878923768) internal successors, (2915), 2315 states have internal predecessors, (2915), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-12-14 14:49:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5338 transitions. [2022-12-14 14:49:36,449 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5338 transitions. Word has length 127 [2022-12-14 14:49:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:36,450 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5338 transitions. [2022-12-14 14:49:36,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:49:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5338 transitions. [2022-12-14 14:49:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 14:49:36,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:36,451 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:36,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:49:36,452 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:36,452 INFO L85 PathProgramCache]: Analyzing trace with hash -412252469, now seen corresponding path program 1 times [2022-12-14 14:49:36,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:36,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778772124] [2022-12-14 14:49:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 14:49:36,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:36,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778772124] [2022-12-14 14:49:36,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778772124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:36,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:36,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:49:36,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788921525] [2022-12-14 14:49:36,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:36,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:36,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:36,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:36,597 INFO L87 Difference]: Start difference. First operand 3697 states and 5338 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 14:49:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:37,350 INFO L93 Difference]: Finished difference Result 6214 states and 8958 transitions. [2022-12-14 14:49:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:37,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-12-14 14:49:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:37,362 INFO L225 Difference]: With dead ends: 6214 [2022-12-14 14:49:37,362 INFO L226 Difference]: Without dead ends: 3689 [2022-12-14 14:49:37,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:37,368 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 1089 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:37,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 935 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:49:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2022-12-14 14:49:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3689. [2022-12-14 14:49:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2223 states have (on average 1.3054430949167792) internal successors, (2902), 2307 states have internal predecessors, (2902), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-12-14 14:49:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5325 transitions. [2022-12-14 14:49:37,648 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5325 transitions. Word has length 130 [2022-12-14 14:49:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:37,648 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5325 transitions. [2022-12-14 14:49:37,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 14:49:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5325 transitions. [2022-12-14 14:49:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 14:49:37,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:37,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:37,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 14:49:37,650 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:37,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2034335864, now seen corresponding path program 1 times [2022-12-14 14:49:37,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:37,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022627953] [2022-12-14 14:49:37,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:37,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:37,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022627953] [2022-12-14 14:49:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022627953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:37,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:37,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:37,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111446725] [2022-12-14 14:49:37,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:37,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:37,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:37,791 INFO L87 Difference]: Start difference. First operand 3689 states and 5325 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 14:49:38,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:38,832 INFO L93 Difference]: Finished difference Result 3689 states and 5325 transitions. [2022-12-14 14:49:38,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:38,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-12-14 14:49:38,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:38,843 INFO L225 Difference]: With dead ends: 3689 [2022-12-14 14:49:38,843 INFO L226 Difference]: Without dead ends: 3687 [2022-12-14 14:49:38,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:38,845 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 1066 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:38,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1864 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:38,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2022-12-14 14:49:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2022-12-14 14:49:39,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2222 states have (on average 1.3051305130513051) internal successors, (2900), 2305 states have internal predecessors, (2900), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-12-14 14:49:39,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5323 transitions. [2022-12-14 14:49:39,201 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5323 transitions. Word has length 103 [2022-12-14 14:49:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:39,202 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 5323 transitions. [2022-12-14 14:49:39,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 14:49:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5323 transitions. [2022-12-14 14:49:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 14:49:39,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:39,204 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 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] [2022-12-14 14:49:39,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 14:49:39,204 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash 336071993, now seen corresponding path program 1 times [2022-12-14 14:49:39,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:39,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139838874] [2022-12-14 14:49:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:39,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-12-14 14:49:39,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:39,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139838874] [2022-12-14 14:49:39,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139838874] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:49:39,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786202539] [2022-12-14 14:49:39,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:39,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:49:39,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:49:39,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:49:39,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:49:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:39,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2078 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:49:39,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:49:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 14:49:39,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:49:39,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786202539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:39,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:49:39,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 14:49:39,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076919919] [2022-12-14 14:49:39,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:39,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:39,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:39,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:39,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:49:39,886 INFO L87 Difference]: Start difference. First operand 3687 states and 5323 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:40,635 INFO L93 Difference]: Finished difference Result 6199 states and 8929 transitions. [2022-12-14 14:49:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:40,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-12-14 14:49:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:40,646 INFO L225 Difference]: With dead ends: 6199 [2022-12-14 14:49:40,646 INFO L226 Difference]: Without dead ends: 3693 [2022-12-14 14:49:40,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:49:40,653 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 1034 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:40,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 990 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:49:40,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-12-14 14:49:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-12-14 14:49:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2222 states have (on average 1.3024302430243024) internal successors, (2894), 2304 states have internal predecessors, (2894), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5323 transitions. [2022-12-14 14:49:40,952 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5323 transitions. Word has length 135 [2022-12-14 14:49:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:40,953 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5323 transitions. [2022-12-14 14:49:40,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 14:49:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5323 transitions. [2022-12-14 14:49:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 14:49:40,954 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:40,954 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:40,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:49:41,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:49:41,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash -873347459, now seen corresponding path program 1 times [2022-12-14 14:49:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598822080] [2022-12-14 14:49:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:41,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:41,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598822080] [2022-12-14 14:49:41,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598822080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:41,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:41,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:41,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890463489] [2022-12-14 14:49:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:41,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:41,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:41,356 INFO L87 Difference]: Start difference. First operand 3693 states and 5323 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:49:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:42,323 INFO L93 Difference]: Finished difference Result 3693 states and 5323 transitions. [2022-12-14 14:49:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-12-14 14:49:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:42,332 INFO L225 Difference]: With dead ends: 3693 [2022-12-14 14:49:42,332 INFO L226 Difference]: Without dead ends: 3691 [2022-12-14 14:49:42,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:42,333 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 1058 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:42,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1850 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:42,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2022-12-14 14:49:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3691. [2022-12-14 14:49:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 2221 states have (on average 1.3021161638901395) internal successors, (2892), 2302 states have internal predecessors, (2892), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 5321 transitions. [2022-12-14 14:49:42,649 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 5321 transitions. Word has length 108 [2022-12-14 14:49:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:42,649 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 5321 transitions. [2022-12-14 14:49:42,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:49:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 5321 transitions. [2022-12-14 14:49:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 14:49:42,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:42,651 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:42,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 14:49:42,651 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:42,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:42,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1047668075, now seen corresponding path program 1 times [2022-12-14 14:49:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:42,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525748864] [2022-12-14 14:49:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:42,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:42,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:42,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525748864] [2022-12-14 14:49:42,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525748864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:42,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:42,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:42,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932004228] [2022-12-14 14:49:42,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:42,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:42,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:42,784 INFO L87 Difference]: Start difference. First operand 3691 states and 5321 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:49:43,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:43,807 INFO L93 Difference]: Finished difference Result 3691 states and 5321 transitions. [2022-12-14 14:49:43,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:43,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-12-14 14:49:43,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:43,816 INFO L225 Difference]: With dead ends: 3691 [2022-12-14 14:49:43,817 INFO L226 Difference]: Without dead ends: 3689 [2022-12-14 14:49:43,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:43,818 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1055 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:43,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1846 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2022-12-14 14:49:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3689. [2022-12-14 14:49:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2220 states have (on average 1.3018018018018018) internal successors, (2890), 2300 states have internal predecessors, (2890), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5319 transitions. [2022-12-14 14:49:44,244 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5319 transitions. Word has length 113 [2022-12-14 14:49:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:44,245 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5319 transitions. [2022-12-14 14:49:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:49:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5319 transitions. [2022-12-14 14:49:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 14:49:44,248 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:44,248 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-14 14:49:44,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 14:49:44,248 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:44,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1216574761, now seen corresponding path program 1 times [2022-12-14 14:49:44,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:44,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259911631] [2022-12-14 14:49:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:44,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-12-14 14:49:44,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:44,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259911631] [2022-12-14 14:49:44,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259911631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:44,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:44,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:49:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798664970] [2022-12-14 14:49:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:44,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:49:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:49:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:44,586 INFO L87 Difference]: Start difference. First operand 3689 states and 5319 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:49:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:46,075 INFO L93 Difference]: Finished difference Result 7269 states and 11250 transitions. [2022-12-14 14:49:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:49:46,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 120 [2022-12-14 14:49:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:46,087 INFO L225 Difference]: With dead ends: 7269 [2022-12-14 14:49:46,087 INFO L226 Difference]: Without dead ends: 3713 [2022-12-14 14:49:46,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:46,099 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 2 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:46,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3743 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:49:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-12-14 14:49:46,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3701. [2022-12-14 14:49:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 2232 states have (on average 1.300179211469534) internal successors, (2902), 2306 states have internal predecessors, (2902), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:46,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5331 transitions. [2022-12-14 14:49:46,433 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5331 transitions. Word has length 120 [2022-12-14 14:49:46,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:46,433 INFO L495 AbstractCegarLoop]: Abstraction has 3701 states and 5331 transitions. [2022-12-14 14:49:46,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:49:46,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5331 transitions. [2022-12-14 14:49:46,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 14:49:46,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:46,435 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:46,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 14:49:46,435 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:46,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:46,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2052142818, now seen corresponding path program 1 times [2022-12-14 14:49:46,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:46,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534553743] [2022-12-14 14:49:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:46,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:46,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:46,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534553743] [2022-12-14 14:49:46,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534553743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:46,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:46,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014653695] [2022-12-14 14:49:46,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:46,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:46,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:46,586 INFO L87 Difference]: Start difference. First operand 3701 states and 5331 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 14:49:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:47,563 INFO L93 Difference]: Finished difference Result 3701 states and 5331 transitions. [2022-12-14 14:49:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:47,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-12-14 14:49:47,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:47,576 INFO L225 Difference]: With dead ends: 3701 [2022-12-14 14:49:47,576 INFO L226 Difference]: Without dead ends: 3699 [2022-12-14 14:49:47,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:47,579 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 1052 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:47,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1842 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2022-12-14 14:49:47,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3699. [2022-12-14 14:49:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2231 states have (on average 1.2998655311519498) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:47,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5329 transitions. [2022-12-14 14:49:47,944 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5329 transitions. Word has length 118 [2022-12-14 14:49:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:47,944 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 5329 transitions. [2022-12-14 14:49:47,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 14:49:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5329 transitions. [2022-12-14 14:49:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 14:49:47,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:47,946 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:47,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 14:49:47,946 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:47,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1507617267, now seen corresponding path program 1 times [2022-12-14 14:49:47,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:47,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970230842] [2022-12-14 14:49:47,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:48,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:48,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970230842] [2022-12-14 14:49:48,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970230842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:48,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:48,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:48,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87418052] [2022-12-14 14:49:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:48,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:48,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:48,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:48,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:48,203 INFO L87 Difference]: Start difference. First operand 3699 states and 5329 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:49:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:49,264 INFO L93 Difference]: Finished difference Result 3699 states and 5329 transitions. [2022-12-14 14:49:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:49,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-12-14 14:49:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:49,275 INFO L225 Difference]: With dead ends: 3699 [2022-12-14 14:49:49,276 INFO L226 Difference]: Without dead ends: 3697 [2022-12-14 14:49:49,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:49,277 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 1049 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:49,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1838 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-12-14 14:49:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2022-12-14 14:49:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.2995515695067266) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5327 transitions. [2022-12-14 14:49:49,712 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5327 transitions. Word has length 123 [2022-12-14 14:49:49,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:49,712 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5327 transitions. [2022-12-14 14:49:49,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:49:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5327 transitions. [2022-12-14 14:49:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 14:49:49,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:49,714 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:49,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 14:49:49,714 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:49,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:49,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2071761773, now seen corresponding path program 1 times [2022-12-14 14:49:49,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:49,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367042653] [2022-12-14 14:49:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:49,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:49,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:49,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367042653] [2022-12-14 14:49:49,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367042653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:49,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:49,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:49,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859583096] [2022-12-14 14:49:49,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:49,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:49,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:49,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:49,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:49,852 INFO L87 Difference]: Start difference. First operand 3697 states and 5327 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:49:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:50,736 INFO L93 Difference]: Finished difference Result 3697 states and 5327 transitions. [2022-12-14 14:49:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-12-14 14:49:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:50,745 INFO L225 Difference]: With dead ends: 3697 [2022-12-14 14:49:50,745 INFO L226 Difference]: Without dead ends: 3695 [2022-12-14 14:49:50,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:50,747 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 1046 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:50,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1834 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:49:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-12-14 14:49:51,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2022-12-14 14:49:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2229 states have (on average 1.2992373261552266) internal successors, (2896), 2300 states have internal predecessors, (2896), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:51,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5325 transitions. [2022-12-14 14:49:51,118 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5325 transitions. Word has length 128 [2022-12-14 14:49:51,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:51,118 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5325 transitions. [2022-12-14 14:49:51,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:49:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5325 transitions. [2022-12-14 14:49:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 14:49:51,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:51,120 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:51,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 14:49:51,120 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash -842203847, now seen corresponding path program 1 times [2022-12-14 14:49:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:51,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061237325] [2022-12-14 14:49:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:51,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:51,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:51,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061237325] [2022-12-14 14:49:51,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061237325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:51,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:51,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725194940] [2022-12-14 14:49:51,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:51,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:51,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:51,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:51,256 INFO L87 Difference]: Start difference. First operand 3695 states and 5325 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:49:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:52,239 INFO L93 Difference]: Finished difference Result 3695 states and 5325 transitions. [2022-12-14 14:49:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:52,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-12-14 14:49:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:52,248 INFO L225 Difference]: With dead ends: 3695 [2022-12-14 14:49:52,248 INFO L226 Difference]: Without dead ends: 3693 [2022-12-14 14:49:52,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:52,249 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 1043 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:52,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1830 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:49:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-12-14 14:49:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-12-14 14:49:52,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2228 states have (on average 1.2989228007181328) internal successors, (2894), 2298 states have internal predecessors, (2894), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-12-14 14:49:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5323 transitions. [2022-12-14 14:49:52,638 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5323 transitions. Word has length 133 [2022-12-14 14:49:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:52,638 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5323 transitions. [2022-12-14 14:49:52,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:49:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5323 transitions. [2022-12-14 14:49:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-14 14:49:52,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:52,640 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:52,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 14:49:52,640 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash -803456573, now seen corresponding path program 1 times [2022-12-14 14:49:52,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:52,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136172727] [2022-12-14 14:49:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-12-14 14:49:53,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:53,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136172727] [2022-12-14 14:49:53,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136172727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:53,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:53,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 14:49:53,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684133993] [2022-12-14 14:49:53,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:53,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:49:53,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:53,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:49:53,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:49:53,546 INFO L87 Difference]: Start difference. First operand 3693 states and 5323 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 14:49:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:58,256 INFO L93 Difference]: Finished difference Result 4009 states and 5788 transitions. [2022-12-14 14:49:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 14:49:58,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 166 [2022-12-14 14:49:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:58,265 INFO L225 Difference]: With dead ends: 4009 [2022-12-14 14:49:58,265 INFO L226 Difference]: Without dead ends: 4007 [2022-12-14 14:49:58,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:49:58,267 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1070 mSDsluCounter, 5371 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:58,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 6755 Invalid, 3976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 14:49:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2022-12-14 14:49:58,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3700. [2022-12-14 14:49:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2233 states have (on average 1.2987012987012987) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2022-12-14 14:49:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 5331 transitions. [2022-12-14 14:49:58,674 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 5331 transitions. Word has length 166 [2022-12-14 14:49:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:58,675 INFO L495 AbstractCegarLoop]: Abstraction has 3700 states and 5331 transitions. [2022-12-14 14:49:58,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 14:49:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 5331 transitions. [2022-12-14 14:49:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 14:49:58,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:58,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:58,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 14:49:58,678 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:49:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1911034670, now seen corresponding path program 1 times [2022-12-14 14:49:58,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:58,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725286739] [2022-12-14 14:49:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:49:58,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:58,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725286739] [2022-12-14 14:49:58,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725286739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:58,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:58,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282535875] [2022-12-14 14:49:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:58,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:58,875 INFO L87 Difference]: Start difference. First operand 3700 states and 5331 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:50:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:00,022 INFO L93 Difference]: Finished difference Result 3700 states and 5331 transitions. [2022-12-14 14:50:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:50:00,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-12-14 14:50:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:00,030 INFO L225 Difference]: With dead ends: 3700 [2022-12-14 14:50:00,030 INFO L226 Difference]: Without dead ends: 3698 [2022-12-14 14:50:00,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:50:00,031 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 1040 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:00,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1826 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:50:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-12-14 14:50:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3698. [2022-12-14 14:50:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 2232 states have (on average 1.2983870967741935) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2022-12-14 14:50:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5329 transitions. [2022-12-14 14:50:00,429 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 5329 transitions. Word has length 138 [2022-12-14 14:50:00,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:00,430 INFO L495 AbstractCegarLoop]: Abstraction has 3698 states and 5329 transitions. [2022-12-14 14:50:00,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:50:00,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 5329 transitions. [2022-12-14 14:50:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-14 14:50:00,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:00,432 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:00,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 14:50:00,432 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:00,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash 972489638, now seen corresponding path program 1 times [2022-12-14 14:50:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:00,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611357035] [2022-12-14 14:50:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:00,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-12-14 14:50:01,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:01,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611357035] [2022-12-14 14:50:01,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611357035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:01,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:01,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 14:50:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157441718] [2022-12-14 14:50:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:01,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:50:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:50:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:50:01,327 INFO L87 Difference]: Start difference. First operand 3698 states and 5329 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 14:50:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:06,318 INFO L93 Difference]: Finished difference Result 5201 states and 7521 transitions. [2022-12-14 14:50:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 14:50:06,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 168 [2022-12-14 14:50:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:06,329 INFO L225 Difference]: With dead ends: 5201 [2022-12-14 14:50:06,329 INFO L226 Difference]: Without dead ends: 5199 [2022-12-14 14:50:06,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:50:06,330 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 1122 mSDsluCounter, 5550 mSDsCounter, 0 mSdLazyCounter, 4161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 6995 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:06,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 6995 Invalid, 4169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4161 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 14:50:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2022-12-14 14:50:06,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 4843. [2022-12-14 14:50:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 2930 states have (on average 1.302730375426621) internal successors, (3817), 3017 states have internal predecessors, (3817), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2022-12-14 14:50:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 7006 transitions. [2022-12-14 14:50:06,876 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 7006 transitions. Word has length 168 [2022-12-14 14:50:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:06,876 INFO L495 AbstractCegarLoop]: Abstraction has 4843 states and 7006 transitions. [2022-12-14 14:50:06,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 14:50:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 7006 transitions. [2022-12-14 14:50:06,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 14:50:06,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:06,878 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:06,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 14:50:06,878 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:06,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:06,879 INFO L85 PathProgramCache]: Analyzing trace with hash 648031498, now seen corresponding path program 1 times [2022-12-14 14:50:06,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:06,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688479696] [2022-12-14 14:50:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:06,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:50:07,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:07,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688479696] [2022-12-14 14:50:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688479696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:07,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:07,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:50:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665625634] [2022-12-14 14:50:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:07,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:50:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:07,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:50:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:50:07,017 INFO L87 Difference]: Start difference. First operand 4843 states and 7006 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 14:50:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:08,245 INFO L93 Difference]: Finished difference Result 4843 states and 7006 transitions. [2022-12-14 14:50:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:50:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-12-14 14:50:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:08,255 INFO L225 Difference]: With dead ends: 4843 [2022-12-14 14:50:08,255 INFO L226 Difference]: Without dead ends: 4841 [2022-12-14 14:50:08,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:50:08,257 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 1037 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1822 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 14:50:08,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2022-12-14 14:50:08,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4841. [2022-12-14 14:50:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 2929 states have (on average 1.302492318197337) internal successors, (3815), 3015 states have internal predecessors, (3815), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2022-12-14 14:50:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7004 transitions. [2022-12-14 14:50:08,817 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7004 transitions. Word has length 143 [2022-12-14 14:50:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:08,817 INFO L495 AbstractCegarLoop]: Abstraction has 4841 states and 7004 transitions. [2022-12-14 14:50:08,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 14:50:08,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7004 transitions. [2022-12-14 14:50:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-14 14:50:08,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:08,819 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:08,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 14:50:08,820 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:08,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash -706205171, now seen corresponding path program 1 times [2022-12-14 14:50:08,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:08,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827216904] [2022-12-14 14:50:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:08,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 14:50:08,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:08,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827216904] [2022-12-14 14:50:08,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827216904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:08,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:08,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:50:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203850108] [2022-12-14 14:50:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:08,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:50:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:50:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:50:08,963 INFO L87 Difference]: Start difference. First operand 4841 states and 7004 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 14:50:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:10,955 INFO L93 Difference]: Finished difference Result 8424 states and 12646 transitions. [2022-12-14 14:50:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:50:10,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-12-14 14:50:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:10,977 INFO L225 Difference]: With dead ends: 8424 [2022-12-14 14:50:10,977 INFO L226 Difference]: Without dead ends: 8292 [2022-12-14 14:50:10,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:50:10,981 INFO L413 NwaCegarLoop]: 1255 mSDtfsCounter, 955 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:10,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 3419 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 14:50:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8292 states. [2022-12-14 14:50:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8292 to 8253. [2022-12-14 14:50:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 5011 states have (on average 1.3059269606864896) internal successors, (6544), 5157 states have internal predecessors, (6544), 2417 states have call successors, (2417), 807 states have call predecessors, (2417), 815 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2022-12-14 14:50:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 12441 transitions. [2022-12-14 14:50:12,013 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 12441 transitions. Word has length 148 [2022-12-14 14:50:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:12,014 INFO L495 AbstractCegarLoop]: Abstraction has 8253 states and 12441 transitions. [2022-12-14 14:50:12,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 14:50:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 12441 transitions. [2022-12-14 14:50:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 14:50:12,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:12,016 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:12,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 14:50:12,016 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 955587127, now seen corresponding path program 1 times [2022-12-14 14:50:12,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:12,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825926669] [2022-12-14 14:50:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-12-14 14:50:12,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:12,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825926669] [2022-12-14 14:50:12,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825926669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:12,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:50:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447619901] [2022-12-14 14:50:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:12,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:50:12,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:12,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:50:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:50:12,383 INFO L87 Difference]: Start difference. First operand 8253 states and 12441 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:50:14,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:14,251 INFO L93 Difference]: Finished difference Result 8323 states and 12483 transitions. [2022-12-14 14:50:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:50:14,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 187 [2022-12-14 14:50:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:14,271 INFO L225 Difference]: With dead ends: 8323 [2022-12-14 14:50:14,271 INFO L226 Difference]: Without dead ends: 8321 [2022-12-14 14:50:14,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:50:14,274 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 984 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:14,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2749 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:50:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-12-14 14:50:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8321. [2022-12-14 14:50:15,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 5052 states have (on average 1.3006730007917657) internal successors, (6571), 5197 states have internal predecessors, (6571), 2417 states have call successors, (2417), 835 states have call predecessors, (2417), 843 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2022-12-14 14:50:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 12468 transitions. [2022-12-14 14:50:15,328 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 12468 transitions. Word has length 187 [2022-12-14 14:50:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:15,328 INFO L495 AbstractCegarLoop]: Abstraction has 8321 states and 12468 transitions. [2022-12-14 14:50:15,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:50:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 12468 transitions. [2022-12-14 14:50:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 14:50:15,330 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:15,330 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:15,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 14:50:15,331 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:15,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:15,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1542451000, now seen corresponding path program 1 times [2022-12-14 14:50:15,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:15,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088604861] [2022-12-14 14:50:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:15,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 14:50:15,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:15,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088604861] [2022-12-14 14:50:15,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088604861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:15,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:15,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:50:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951538368] [2022-12-14 14:50:15,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:15,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:50:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:50:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:50:15,619 INFO L87 Difference]: Start difference. First operand 8321 states and 12468 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 14:50:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:17,786 INFO L93 Difference]: Finished difference Result 8321 states and 12468 transitions. [2022-12-14 14:50:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:50:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2022-12-14 14:50:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:17,807 INFO L225 Difference]: With dead ends: 8321 [2022-12-14 14:50:17,807 INFO L226 Difference]: Without dead ends: 8319 [2022-12-14 14:50:17,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:50:17,810 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 30 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:17,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3602 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 14:50:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8319 states. [2022-12-14 14:50:18,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8319 to 8319. [2022-12-14 14:50:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8319 states, 5051 states have (on average 1.2979607998416156) internal successors, (6556), 5195 states have internal predecessors, (6556), 2417 states have call successors, (2417), 835 states have call predecessors, (2417), 843 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2022-12-14 14:50:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8319 states to 8319 states and 12453 transitions. [2022-12-14 14:50:18,861 INFO L78 Accepts]: Start accepts. Automaton has 8319 states and 12453 transitions. Word has length 205 [2022-12-14 14:50:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:18,861 INFO L495 AbstractCegarLoop]: Abstraction has 8319 states and 12453 transitions. [2022-12-14 14:50:18,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 14:50:18,861 INFO L276 IsEmpty]: Start isEmpty. Operand 8319 states and 12453 transitions. [2022-12-14 14:50:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-14 14:50:18,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:18,864 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 5, 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] [2022-12-14 14:50:18,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 14:50:18,865 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash 220144448, now seen corresponding path program 1 times [2022-12-14 14:50:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:18,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852973714] [2022-12-14 14:50:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-14 14:50:19,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:19,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852973714] [2022-12-14 14:50:19,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852973714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:19,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:19,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 14:50:19,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479788820] [2022-12-14 14:50:19,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:19,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:50:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:19,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:50:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:50:19,532 INFO L87 Difference]: Start difference. First operand 8319 states and 12453 transitions. Second operand has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 14:50:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:22,728 INFO L93 Difference]: Finished difference Result 13491 states and 21395 transitions. [2022-12-14 14:50:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:50:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 214 [2022-12-14 14:50:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:22,752 INFO L225 Difference]: With dead ends: 13491 [2022-12-14 14:50:22,752 INFO L226 Difference]: Without dead ends: 8469 [2022-12-14 14:50:22,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:50:22,774 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 4 mSDsluCounter, 6341 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7251 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:22,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7251 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 14:50:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2022-12-14 14:50:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8455. [2022-12-14 14:50:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5134 states have (on average 1.2931437475652512) internal successors, (6639), 5286 states have internal predecessors, (6639), 2432 states have call successors, (2432), 835 states have call predecessors, (2432), 881 states have return successors, (3542), 2391 states have call predecessors, (3542), 2428 states have call successors, (3542) [2022-12-14 14:50:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 12613 transitions. [2022-12-14 14:50:23,831 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 12613 transitions. Word has length 214 [2022-12-14 14:50:23,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:23,831 INFO L495 AbstractCegarLoop]: Abstraction has 8455 states and 12613 transitions. [2022-12-14 14:50:23,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 14:50:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 12613 transitions. [2022-12-14 14:50:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-14 14:50:23,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:23,835 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:23,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 14:50:23,835 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:23,835 INFO L85 PathProgramCache]: Analyzing trace with hash 258419833, now seen corresponding path program 1 times [2022-12-14 14:50:23,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:23,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121565206] [2022-12-14 14:50:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:23,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-12-14 14:50:24,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:24,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121565206] [2022-12-14 14:50:24,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121565206] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:50:24,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878822978] [2022-12-14 14:50:24,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:24,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:50:24,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:50:24,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:50:24,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:50:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:25,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 14:50:25,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:50:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-12-14 14:50:25,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:50:25,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878822978] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:25,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:50:25,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2022-12-14 14:50:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535182352] [2022-12-14 14:50:25,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:25,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 14:50:25,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 14:50:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-12-14 14:50:25,653 INFO L87 Difference]: Start difference. First operand 8455 states and 12613 transitions. Second operand has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-12-14 14:50:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:29,804 INFO L93 Difference]: Finished difference Result 13092 states and 19746 transitions. [2022-12-14 14:50:29,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 14:50:29,804 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) Word has length 247 [2022-12-14 14:50:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:29,825 INFO L225 Difference]: With dead ends: 13092 [2022-12-14 14:50:29,825 INFO L226 Difference]: Without dead ends: 8458 [2022-12-14 14:50:29,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-12-14 14:50:29,836 INFO L413 NwaCegarLoop]: 1193 mSDtfsCounter, 678 mSDsluCounter, 9822 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 11015 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:29,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 11015 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 14:50:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-12-14 14:50:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7692. [2022-12-14 14:50:30,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7692 states, 4677 states have (on average 1.2912123155869146) internal successors, (6039), 4810 states have internal predecessors, (6039), 2213 states have call successors, (2213), 750 states have call predecessors, (2213), 794 states have return successors, (3199), 2182 states have call predecessors, (3199), 2209 states have call successors, (3199) [2022-12-14 14:50:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 11451 transitions. [2022-12-14 14:50:30,888 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 11451 transitions. Word has length 247 [2022-12-14 14:50:30,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:30,888 INFO L495 AbstractCegarLoop]: Abstraction has 7692 states and 11451 transitions. [2022-12-14 14:50:30,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-12-14 14:50:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 11451 transitions. [2022-12-14 14:50:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-14 14:50:30,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:30,892 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:30,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:50:31,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-14 14:50:31,094 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:31,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1247479818, now seen corresponding path program 1 times [2022-12-14 14:50:31,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:31,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763861904] [2022-12-14 14:50:31,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:31,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-12-14 14:50:31,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:31,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763861904] [2022-12-14 14:50:31,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763861904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:31,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:31,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 14:50:31,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603915630] [2022-12-14 14:50:31,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:31,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:50:31,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:50:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:50:31,898 INFO L87 Difference]: Start difference. First operand 7692 states and 11451 transitions. Second operand has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 14:50:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:35,424 INFO L93 Difference]: Finished difference Result 11811 states and 18062 transitions. [2022-12-14 14:50:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:50:35,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 247 [2022-12-14 14:50:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:35,447 INFO L225 Difference]: With dead ends: 11811 [2022-12-14 14:50:35,447 INFO L226 Difference]: Without dead ends: 9231 [2022-12-14 14:50:35,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:50:35,455 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 196 mSDsluCounter, 8251 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 9465 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:35,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 9465 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 14:50:35,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9231 states. [2022-12-14 14:50:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 7694. [2022-12-14 14:50:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 4679 states have (on average 1.2910878392818979) internal successors, (6041), 4811 states have internal predecessors, (6041), 2213 states have call successors, (2213), 750 states have call predecessors, (2213), 794 states have return successors, (3199), 2183 states have call predecessors, (3199), 2209 states have call successors, (3199) [2022-12-14 14:50:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 11453 transitions. [2022-12-14 14:50:36,553 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 11453 transitions. Word has length 247 [2022-12-14 14:50:36,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:36,553 INFO L495 AbstractCegarLoop]: Abstraction has 7694 states and 11453 transitions. [2022-12-14 14:50:36,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 14:50:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 11453 transitions. [2022-12-14 14:50:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-12-14 14:50:36,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:36,557 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 3, 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] [2022-12-14 14:50:36,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 14:50:36,557 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash -783319252, now seen corresponding path program 1 times [2022-12-14 14:50:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:36,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71361721] [2022-12-14 14:50:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:36,619 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:50:36,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669873424] [2022-12-14 14:50:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:36,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:50:36,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:50:36,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:50:36,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:50:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:37,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 14:50:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:50:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-12-14 14:50:37,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:50:37,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71361721] [2022-12-14 14:50:37,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:50:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669873424] [2022-12-14 14:50:37,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669873424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:37,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:37,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 14:50:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144542206] [2022-12-14 14:50:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:50:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:50:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:50:37,195 INFO L87 Difference]: Start difference. First operand 7694 states and 11453 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 14:50:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:39,996 INFO L93 Difference]: Finished difference Result 14811 states and 23516 transitions. [2022-12-14 14:50:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:50:39,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 225 [2022-12-14 14:50:39,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:40,018 INFO L225 Difference]: With dead ends: 14811 [2022-12-14 14:50:40,018 INFO L226 Difference]: Without dead ends: 8042 [2022-12-14 14:50:40,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:50:40,039 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 20 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:40,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5326 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 14:50:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2022-12-14 14:50:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 8006. [2022-12-14 14:50:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8006 states, 4895 states have (on average 1.2831460674157302) internal successors, (6281), 5027 states have internal predecessors, (6281), 2273 states have call successors, (2273), 786 states have call predecessors, (2273), 830 states have return successors, (3315), 2255 states have call predecessors, (3315), 2269 states have call successors, (3315) [2022-12-14 14:50:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 11869 transitions. [2022-12-14 14:50:41,140 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 11869 transitions. Word has length 225 [2022-12-14 14:50:41,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:41,141 INFO L495 AbstractCegarLoop]: Abstraction has 8006 states and 11869 transitions. [2022-12-14 14:50:41,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 14:50:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 11869 transitions. [2022-12-14 14:50:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-12-14 14:50:41,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:41,145 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 3, 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] [2022-12-14 14:50:41,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:50:41,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-14 14:50:41,347 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-12-14 14:50:41,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1078229981, now seen corresponding path program 1 times [2022-12-14 14:50:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:41,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934204974] [2022-12-14 14:50:41,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:41,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:50:41,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966622124] [2022-12-14 14:50:41,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:41,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:50:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:50:41,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:50:41,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57f425c5-92e8-4a05-a9d5-d8f99acc9e5c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:50:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:41,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-14 14:50:41,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:50:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-12-14 14:50:42,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:50:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-12-14 14:50:42,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934204974] [2022-12-14 14:50:42,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:50:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966622124] [2022-12-14 14:50:42,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966622124] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:50:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [867536592] [2022-12-14 14:50:42,317 INFO L159 IcfgInterpreter]: Started Sifa with 171 locations of interest [2022-12-14 14:50:42,317 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:50:42,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:50:42,324 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:50:42,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:50:43,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:43,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:44,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:44,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:44,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-12-14 14:50:44,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31