./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--net--ethernet--atheros--atl1e--atl1e.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:57:05,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:05,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:05,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:05,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:05,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:05,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:05,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:05,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:05,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:05,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:05,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:05,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:05,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:05,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:05,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:05,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:05,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:05,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:05,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:05,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:05,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:05,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:05,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:05,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:05,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:05,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:05,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:05,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:05,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:05,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:05,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:05,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:05,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:05,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:05,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:05,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:05,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:05,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:05,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:05,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:05,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:57:05,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:05,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:05,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:05,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:05,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:05,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:05,590 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:05,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:05,591 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:05,592 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:57:05,593 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:05,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:05,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:57:05,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:57:05,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:05,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:57:05,595 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:57:05,596 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:57:05,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:05,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:57:05,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:05,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:05,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:05,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:05,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:05,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:05,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:05,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:05,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:05,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:05,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:05,603 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:57:05,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:05,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:05,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:57:05,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:57:05,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:05,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:05,605 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_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 [2022-11-25 23:57:05,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:05,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:05,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:05,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:05,958 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:05,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-25 23:57:09,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:10,138 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:10,139 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-25 23:57:10,225 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/data/2e466d4b7/a8b3cfa83abe4e13ab4153e8d2139b76/FLAG0934e6b6c [2022-11-25 23:57:10,251 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/data/2e466d4b7/a8b3cfa83abe4e13ab4153e8d2139b76 [2022-11-25 23:57:10,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:10,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:10,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:10,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:10,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:10,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:10" (1/1) ... [2022-11-25 23:57:10,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c05cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:10, skipping insertion in model container [2022-11-25 23:57:10,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:10" (1/1) ... [2022-11-25 23:57:10,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:10,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:12,433 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:57:12,483 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:57:12,498 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:57:12,513 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:57:12,581 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:57:12,795 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:57:12,802 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:57:12,803 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:57:12,824 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:57:12,836 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:57:12,853 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:57:12,861 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:57:12,896 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:12,901 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:57:12,912 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:57:13,097 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:13,107 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-11-25 23:57:13,218 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:57:13,344 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 23:57:13,351 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:13,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:13,400 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:57:13,407 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:57:13,512 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:57:13,519 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 23:57:13,525 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:57:13,577 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-25 23:57:13,659 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:57:13,872 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:57:13,892 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:13,893 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:13,912 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:13,914 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:13,919 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:57:13,937 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:13,954 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:57:13,954 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:57:13,997 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,020 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,079 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,133 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:57:14,139 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:14,175 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,195 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:14,215 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,216 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:14,217 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:14,252 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-11-25 23:57:14,271 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:14,280 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,287 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,386 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,437 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,438 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,442 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:57:14,478 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,481 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,484 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:14,485 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:57:14,488 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,489 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:57:14,507 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,515 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:57:14,516 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:57:14,565 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:57:14,570 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,640 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,647 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:14,648 WARN L623 FunctionHandler]: Unknown extern function napi_disable [2022-11-25 23:57:14,649 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:14,668 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:14,679 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:14,680 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:57:14,680 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 23:57:14,688 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,689 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:14,693 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,699 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,710 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,713 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:14,714 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:14,715 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:14,716 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:14,717 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:57:14,735 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:57:14,736 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 23:57:14,736 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:14,737 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,738 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:14,742 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:57:14,771 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:14,773 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:14,774 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:14,775 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:14,775 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:57:14,775 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:14,776 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:14,776 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,777 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 23:57:14,778 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,779 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:57:14,779 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:57:14,780 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,782 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,788 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:14,790 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:57:14,793 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:57:14,794 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:57:14,795 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:57:14,797 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,798 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:14,798 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:57:14,799 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:57:14,800 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:14,809 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:57:14,810 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:57:14,810 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:14,818 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:57:14,819 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:14,827 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:14,827 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,829 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:14,838 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:14,843 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:57:15,402 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:57:15,432 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:15,433 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:15,434 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:57:15,435 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:15,436 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_trylock [2022-11-25 23:57:15,437 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:57:15,438 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:57:15,439 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:57:15,440 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:15,441 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:57:15,442 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:15,442 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:57:15,443 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:57:15,445 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:57:15,514 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,518 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,520 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:57:15,523 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:57:15,525 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:57:15,545 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,546 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,547 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,549 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,549 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,552 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,552 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,553 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,555 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:15,556 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,558 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,559 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,559 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:15,645 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:15,697 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:15,698 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:15,710 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:15,718 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:15,719 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:15,719 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:15,720 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:15,739 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:57:15,748 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:57:15,751 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:15,769 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:15,770 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:15,771 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:15,772 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:15,773 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:15,775 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-11-25 23:57:15,775 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-11-25 23:57:16,579 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:16,985 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:57:18,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2022-11-25 23:57:18,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2022-11-25 23:57:18,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2022-11-25 23:57:18,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2022-11-25 23:57:18,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2022-11-25 23:57:18,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2022-11-25 23:57:18,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2022-11-25 23:57:18,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2022-11-25 23:57:18,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2022-11-25 23:57:18,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2022-11-25 23:57:18,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2022-11-25 23:57:18,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2022-11-25 23:57:18,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2022-11-25 23:57:18,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2022-11-25 23:57:18,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2022-11-25 23:57:18,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2022-11-25 23:57:18,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2022-11-25 23:57:18,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2022-11-25 23:57:18,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2022-11-25 23:57:18,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2022-11-25 23:57:18,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2022-11-25 23:57:18,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2022-11-25 23:57:18,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2022-11-25 23:57:18,276 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2022-11-25 23:57:18,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2022-11-25 23:57:18,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2022-11-25 23:57:18,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2022-11-25 23:57:18,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2022-11-25 23:57:18,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2022-11-25 23:57:18,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2022-11-25 23:57:18,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2022-11-25 23:57:18,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2022-11-25 23:57:18,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2022-11-25 23:57:18,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2022-11-25 23:57:18,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2022-11-25 23:57:18,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2022-11-25 23:57:18,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2022-11-25 23:57:18,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2022-11-25 23:57:18,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2022-11-25 23:57:18,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2022-11-25 23:57:18,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2022-11-25 23:57:18,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2022-11-25 23:57:18,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2022-11-25 23:57:18,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2022-11-25 23:57:18,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2022-11-25 23:57:18,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2022-11-25 23:57:18,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2022-11-25 23:57:18,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2022-11-25 23:57:18,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2022-11-25 23:57:18,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2022-11-25 23:57:18,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2022-11-25 23:57:18,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2022-11-25 23:57:18,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2022-11-25 23:57:18,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2022-11-25 23:57:18,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2022-11-25 23:57:18,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2022-11-25 23:57:18,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2022-11-25 23:57:18,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2022-11-25 23:57:18,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2022-11-25 23:57:18,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2022-11-25 23:57:18,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2022-11-25 23:57:18,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2022-11-25 23:57:18,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2022-11-25 23:57:18,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2022-11-25 23:57:18,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2022-11-25 23:57:18,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2022-11-25 23:57:18,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2022-11-25 23:57:18,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2022-11-25 23:57:18,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2022-11-25 23:57:18,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2022-11-25 23:57:18,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2022-11-25 23:57:18,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2022-11-25 23:57:18,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2022-11-25 23:57:18,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2022-11-25 23:57:18,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2022-11-25 23:57:18,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2022-11-25 23:57:18,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2022-11-25 23:57:18,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2022-11-25 23:57:18,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2022-11-25 23:57:18,328 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2022-11-25 23:57:18,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2022-11-25 23:57:18,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2022-11-25 23:57:18,330 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2022-11-25 23:57:18,330 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2022-11-25 23:57:18,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2022-11-25 23:57:18,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2022-11-25 23:57:18,332 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2022-11-25 23:57:18,332 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2022-11-25 23:57:18,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:18,425 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:57:18,588 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:57:18,589 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:57:18,590 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:57:18,590 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:57:18,591 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:57:18,597 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:57:18,599 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:57:18,599 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:57:18,602 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:57:18,604 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:57:18,605 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:57:18,606 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:57:18,608 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,609 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:57:18,610 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:57:18,616 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,617 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-11-25 23:57:18,622 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:57:18,626 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 23:57:18,627 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:18,630 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:57:18,630 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:57:18,632 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:57:18,635 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 23:57:18,700 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-11-25 23:57:18,702 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-25 23:57:18,705 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:57:18,714 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:57:18,716 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,716 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:18,722 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:18,723 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:18,725 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:57:18,727 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:18,728 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:57:18,729 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:57:18,738 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,741 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,744 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,748 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:57:18,748 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:18,753 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,756 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:18,761 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,762 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:18,763 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:18,771 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-11-25 23:57:18,775 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:18,777 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,781 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,805 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,816 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,817 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,819 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:57:18,824 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,831 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,839 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:18,839 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:57:18,842 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,843 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:57:18,847 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,848 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:57:18,849 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:57:18,866 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:57:18,868 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,887 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,889 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,891 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:18,891 WARN L623 FunctionHandler]: Unknown extern function napi_disable [2022-11-25 23:57:18,892 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:18,894 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,897 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:18,897 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:57:18,898 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 23:57:18,900 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,901 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:18,903 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,905 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,907 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,908 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:18,910 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:18,911 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:18,911 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 23:57:18,911 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:57:18,913 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 23:57:18,913 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 23:57:18,914 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:18,914 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,915 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:18,916 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:57:18,921 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:18,921 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:18,922 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:18,922 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:18,923 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:57:18,923 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:57:18,923 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:18,924 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,932 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 23:57:18,933 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,955 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:57:18,955 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:57:18,956 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,957 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,960 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:18,960 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:57:18,961 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:57:18,961 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:57:18,962 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:57:18,963 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,963 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:57:18,964 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:57:18,965 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:57:18,965 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:18,967 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 23:57:18,967 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:57:18,967 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:18,968 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:57:18,969 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:57:18,970 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:57:18,970 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,971 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:57:18,972 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:18,973 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:57:18,986 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:57:19,017 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:19,018 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:19,019 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:57:19,019 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:19,020 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_trylock [2022-11-25 23:57:19,021 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:57:19,022 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:57:19,022 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:57:19,026 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:19,026 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:57:19,028 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:19,028 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:57:19,029 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:57:19,031 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:57:19,035 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,039 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,041 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:57:19,045 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:57:19,047 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:57:19,056 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,057 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,057 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,064 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,064 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,065 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,066 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,067 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,069 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 23:57:19,070 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,077 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,077 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,078 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:19,084 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:57:19,106 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:19,107 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:19,172 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:19,173 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:19,173 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:19,174 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:19,175 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:57:19,180 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-25 23:57:19,182 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:57:19,185 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:19,196 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:19,197 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:19,198 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:19,199 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:19,206 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:57:19,208 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-11-25 23:57:19,209 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-11-25 23:57:19,241 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:19,253 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:57:19,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2022-11-25 23:57:19,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2022-11-25 23:57:19,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2022-11-25 23:57:19,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2022-11-25 23:57:19,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2022-11-25 23:57:19,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2022-11-25 23:57:19,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2022-11-25 23:57:19,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2022-11-25 23:57:19,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2022-11-25 23:57:19,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2022-11-25 23:57:19,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2022-11-25 23:57:19,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2022-11-25 23:57:19,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2022-11-25 23:57:19,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2022-11-25 23:57:19,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2022-11-25 23:57:19,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2022-11-25 23:57:19,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2022-11-25 23:57:19,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2022-11-25 23:57:19,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2022-11-25 23:57:19,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2022-11-25 23:57:19,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2022-11-25 23:57:19,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2022-11-25 23:57:19,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2022-11-25 23:57:19,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2022-11-25 23:57:19,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2022-11-25 23:57:19,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2022-11-25 23:57:19,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2022-11-25 23:57:19,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2022-11-25 23:57:19,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2022-11-25 23:57:19,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2022-11-25 23:57:19,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2022-11-25 23:57:19,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2022-11-25 23:57:19,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2022-11-25 23:57:19,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2022-11-25 23:57:19,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2022-11-25 23:57:19,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2022-11-25 23:57:19,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2022-11-25 23:57:19,328 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2022-11-25 23:57:19,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2022-11-25 23:57:19,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2022-11-25 23:57:19,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2022-11-25 23:57:19,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2022-11-25 23:57:19,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2022-11-25 23:57:19,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2022-11-25 23:57:19,335 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2022-11-25 23:57:19,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2022-11-25 23:57:19,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2022-11-25 23:57:19,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2022-11-25 23:57:19,338 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2022-11-25 23:57:19,340 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2022-11-25 23:57:19,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2022-11-25 23:57:19,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2022-11-25 23:57:19,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2022-11-25 23:57:19,343 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2022-11-25 23:57:19,344 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2022-11-25 23:57:19,344 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2022-11-25 23:57:19,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2022-11-25 23:57:19,346 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2022-11-25 23:57:19,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2022-11-25 23:57:19,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2022-11-25 23:57:19,348 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2022-11-25 23:57:19,349 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2022-11-25 23:57:19,356 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2022-11-25 23:57:19,357 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2022-11-25 23:57:19,357 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2022-11-25 23:57:19,358 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2022-11-25 23:57:19,359 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2022-11-25 23:57:19,359 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2022-11-25 23:57:19,360 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2022-11-25 23:57:19,361 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2022-11-25 23:57:19,361 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2022-11-25 23:57:19,362 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2022-11-25 23:57:19,362 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2022-11-25 23:57:19,364 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2022-11-25 23:57:19,365 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2022-11-25 23:57:19,365 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2022-11-25 23:57:19,366 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2022-11-25 23:57:19,367 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2022-11-25 23:57:19,369 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2022-11-25 23:57:19,370 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2022-11-25 23:57:19,371 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2022-11-25 23:57:19,372 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2022-11-25 23:57:19,372 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2022-11-25 23:57:19,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2022-11-25 23:57:19,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2022-11-25 23:57:19,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2022-11-25 23:57:19,375 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2022-11-25 23:57:19,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2022-11-25 23:57:19,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:20,002 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:57:20,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20 WrapperNode [2022-11-25 23:57:20,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:20,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:20,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:57:20,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:57:20,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,593 INFO L138 Inliner]: procedures = 817, calls = 3646, calls flagged for inlining = 391, calls inlined = 289, statements flattened = 8084 [2022-11-25 23:57:20,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:20,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:57:20,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:57:20,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:57:20,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:20,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:21,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:57:21,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:57:21,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:57:21,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:57:21,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (1/1) ... [2022-11-25 23:57:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:21,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:57:21,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:57:21,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:57:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-25 23:57:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-25 23:57:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 23:57:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 23:57:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_131 [2022-11-25 23:57:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_131 [2022-11-25 23:57:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:57:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:57:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:57:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:57:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 23:57:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 23:57:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:57:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:57:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-25 23:57:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-25 23:57:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2022-11-25 23:57:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2022-11-25 23:57:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-25 23:57:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-25 23:57:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2022-11-25 23:57:21,163 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2022-11-25 23:57:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 23:57:21,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 23:57:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-25 23:57:21,163 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-25 23:57:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:57:21,163 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:57:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:57:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:57:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-25 23:57:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-25 23:57:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-25 23:57:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-25 23:57:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-25 23:57:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-25 23:57:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 23:57:21,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 23:57:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 23:57:21,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 23:57:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:57:21,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:57:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:57:21,165 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:57:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:57:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:57:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:57:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:57:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:57:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:57:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:57:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-25 23:57:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-25 23:57:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-25 23:57:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-25 23:57:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-25 23:57:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-25 23:57:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:57:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:57:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-25 23:57:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-25 23:57:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-25 23:57:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-25 23:57:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 23:57:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 23:57:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-25 23:57:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-25 23:57:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:57:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:57:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:57:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:57:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:57:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:57:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:57:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:57:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:57:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:57:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-25 23:57:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-25 23:57:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-25 23:57:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-25 23:57:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:57:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:57:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:57:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:57:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-25 23:57:21,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-25 23:57:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:57:21,172 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:57:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:57:21,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:57:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 23:57:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 23:57:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:57:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:57:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:57:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 23:57:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 23:57:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 23:57:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 23:57:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_138 [2022-11-25 23:57:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_138 [2022-11-25 23:57:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-25 23:57:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-25 23:57:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-25 23:57:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-25 23:57:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-25 23:57:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-25 23:57:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:57:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:57:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_127 [2022-11-25 23:57:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_127 [2022-11-25 23:57:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:57:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:57:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-25 23:57:21,176 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-25 23:57:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:57:21,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:57:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:57:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:57:21,177 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:57:21,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:57:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:57:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:57:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-25 23:57:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-25 23:57:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-25 23:57:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-25 23:57:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:57:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:57:21,179 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 23:57:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 23:57:21,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:57:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:57:21,179 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-25 23:57:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-25 23:57:21,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:57:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:57:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:57:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:57:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-25 23:57:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-25 23:57:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:57:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:57:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:57:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-25 23:57:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-25 23:57:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:57:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:57:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-25 23:57:21,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-25 23:57:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-25 23:57:21,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-25 23:57:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2022-11-25 23:57:21,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2022-11-25 23:57:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-25 23:57:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-25 23:57:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-25 23:57:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-25 23:57:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:57:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:57:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 23:57:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 23:57:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_130 [2022-11-25 23:57:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_130 [2022-11-25 23:57:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:57:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-25 23:57:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-25 23:57:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-25 23:57:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:57:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:57:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:57:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:57:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:57:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:57:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:57:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:57:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:57:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 23:57:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 23:57:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:57:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:57:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-25 23:57:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-25 23:57:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-25 23:57:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-25 23:57:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-25 23:57:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:57:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-25 23:57:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:57:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-25 23:57:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-25 23:57:21,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:57:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 23:57:21,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 23:57:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:57:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-25 23:57:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 23:57:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-25 23:57:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-25 23:57:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-25 23:57:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-25 23:57:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 23:57:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 23:57:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-25 23:57:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-25 23:57:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-25 23:57:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-25 23:57:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:57:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:57:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-25 23:57:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:57:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-25 23:57:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-25 23:57:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-25 23:57:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-25 23:57:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-25 23:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-25 23:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-25 23:57:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-25 23:57:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-25 23:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-25 23:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 23:57:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 23:57:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-25 23:57:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-25 23:57:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-25 23:57:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-25 23:57:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-25 23:57:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-25 23:57:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-25 23:57:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-25 23:57:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-25 23:57:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-25 23:57:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 23:57:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 23:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:57:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-25 23:57:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-25 23:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:57:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:57:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-25 23:57:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-25 23:57:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-25 23:57:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-25 23:57:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:57:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:57:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:57:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2022-11-25 23:57:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2022-11-25 23:57:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:57:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-25 23:57:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-25 23:57:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:57:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:57:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:57:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:57:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:57:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:57:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-25 23:57:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-25 23:57:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-25 23:57:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-25 23:57:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:57:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:57:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 23:57:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 23:57:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:57:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:57:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-25 23:57:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-25 23:57:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-25 23:57:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-25 23:57:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:57:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:57:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:57:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-25 23:57:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-25 23:57:22,902 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:57:22,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:57:23,350 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:57:36,018 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:57:38,407 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:57:38,407 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:57:38,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:38 BoogieIcfgContainer [2022-11-25 23:57:38,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:57:38,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:57:38,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:57:38,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:57:38,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:10" (1/3) ... [2022-11-25 23:57:38,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf2b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:38, skipping insertion in model container [2022-11-25 23:57:38,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:20" (2/3) ... [2022-11-25 23:57:38,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf2b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:38, skipping insertion in model container [2022-11-25 23:57:38,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:38" (3/3) ... [2022-11-25 23:57:38,429 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-25 23:57:38,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:57:38,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-25 23:57:38,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:57:38,685 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;@b773037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:57:38,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-25 23:57:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 2222 states, 1278 states have (on average 1.2746478873239437) internal successors, (1629), 1340 states have internal predecessors, (1629), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) [2022-11-25 23:57:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 23:57:38,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:38,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:57:38,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:57:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:38,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1069440516, now seen corresponding path program 1 times [2022-11-25 23:57:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:38,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564798858] [2022-11-25 23:57:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:38,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:57:40,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:40,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564798858] [2022-11-25 23:57:40,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564798858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:40,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:40,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:40,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935602759] [2022-11-25 23:57:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:40,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:57:40,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:40,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:57:40,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:57:40,279 INFO L87 Difference]: Start difference. First operand has 2222 states, 1278 states have (on average 1.2746478873239437) internal successors, (1629), 1340 states have internal predecessors, (1629), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:57:43,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:46,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:50,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:52,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:54,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:56,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:56,178 INFO L93 Difference]: Finished difference Result 5841 states and 8277 transitions. [2022-11-25 23:57:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:56,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2022-11-25 23:57:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:56,223 INFO L225 Difference]: With dead ends: 5841 [2022-11-25 23:57:56,223 INFO L226 Difference]: Without dead ends: 3621 [2022-11-25 23:57:56,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:56,242 INFO L413 NwaCegarLoop]: 3297 mSDtfsCounter, 1916 mSDsluCounter, 6002 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 9299 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:56,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1918 Valid, 9299 Invalid, 1100 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 1095 Invalid, 4 Unknown, 0 Unchecked, 15.2s Time] [2022-11-25 23:57:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-11-25 23:57:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3455. [2022-11-25 23:57:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 1985 states have (on average 1.2438287153652392) internal successors, (2469), 2067 states have internal predecessors, (2469), 1162 states have call successors, (1162), 281 states have call predecessors, (1162), 280 states have return successors, (1160), 1155 states have call predecessors, (1160), 1160 states have call successors, (1160) [2022-11-25 23:57:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4791 transitions. [2022-11-25 23:57:56,641 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4791 transitions. Word has length 47 [2022-11-25 23:57:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:56,642 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4791 transitions. [2022-11-25 23:57:56,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:57:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4791 transitions. [2022-11-25 23:57:56,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:57:56,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:56,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:57:56,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:57:56,647 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:57:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash -292578616, now seen corresponding path program 1 times [2022-11-25 23:57:56,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:56,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548108720] [2022-11-25 23:57:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:57:57,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:57,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548108720] [2022-11-25 23:57:57,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548108720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:57,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:57,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:57,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936712991] [2022-11-25 23:57:57,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:57,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:57:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:57:57,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:57:57,365 INFO L87 Difference]: Start difference. First operand 3455 states and 4791 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 23:58:00,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:02,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:06,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:08,625 INFO L93 Difference]: Finished difference Result 3621 states and 4968 transitions. [2022-11-25 23:58:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 52 [2022-11-25 23:58:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:08,653 INFO L225 Difference]: With dead ends: 3621 [2022-11-25 23:58:08,654 INFO L226 Difference]: Without dead ends: 3619 [2022-11-25 23:58:08,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:08,657 INFO L413 NwaCegarLoop]: 3281 mSDtfsCounter, 1900 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:08,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 9253 Invalid, 1095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1091 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-25 23:58:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2022-11-25 23:58:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3461. [2022-11-25 23:58:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3461 states, 1988 states have (on average 1.243460764587525) internal successors, (2472), 2070 states have internal predecessors, (2472), 1164 states have call successors, (1164), 282 states have call predecessors, (1164), 281 states have return successors, (1162), 1157 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-11-25 23:58:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3461 states to 3461 states and 4798 transitions. [2022-11-25 23:58:08,913 INFO L78 Accepts]: Start accepts. Automaton has 3461 states and 4798 transitions. Word has length 52 [2022-11-25 23:58:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:08,914 INFO L495 AbstractCegarLoop]: Abstraction has 3461 states and 4798 transitions. [2022-11-25 23:58:08,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 23:58:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3461 states and 4798 transitions. [2022-11-25 23:58:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 23:58:08,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:08,923 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:58:08,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:58:08,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:58:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:08,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1599830045, now seen corresponding path program 1 times [2022-11-25 23:58:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:08,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026886895] [2022-11-25 23:58:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:08,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:58:09,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:09,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026886895] [2022-11-25 23:58:09,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026886895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:09,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:09,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:09,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259980369] [2022-11-25 23:58:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:09,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:09,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:09,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:09,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:09,623 INFO L87 Difference]: Start difference. First operand 3461 states and 4798 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:58:12,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:14,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:16,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:20,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:23,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:25,292 INFO L93 Difference]: Finished difference Result 3669 states and 5033 transitions. [2022-11-25 23:58:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 57 [2022-11-25 23:58:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:25,391 INFO L225 Difference]: With dead ends: 3669 [2022-11-25 23:58:25,391 INFO L226 Difference]: Without dead ends: 3667 [2022-11-25 23:58:25,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:25,397 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 1960 mSDsluCounter, 5982 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:25,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 9273 Invalid, 1094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1089 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2022-11-25 23:58:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2022-11-25 23:58:25,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3516. [2022-11-25 23:58:25,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3516 states, 2025 states have (on average 1.2449382716049382) internal successors, (2521), 2108 states have internal predecessors, (2521), 1176 states have call successors, (1176), 288 states have call predecessors, (1176), 287 states have return successors, (1174), 1168 states have call predecessors, (1174), 1174 states have call successors, (1174) [2022-11-25 23:58:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3516 states to 3516 states and 4871 transitions. [2022-11-25 23:58:25,599 INFO L78 Accepts]: Start accepts. Automaton has 3516 states and 4871 transitions. Word has length 57 [2022-11-25 23:58:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:25,599 INFO L495 AbstractCegarLoop]: Abstraction has 3516 states and 4871 transitions. [2022-11-25 23:58:25,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:58:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3516 states and 4871 transitions. [2022-11-25 23:58:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 23:58:25,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:25,601 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:58:25,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:58:25,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:58:25,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash 364389533, now seen corresponding path program 1 times [2022-11-25 23:58:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:25,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611359224] [2022-11-25 23:58:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:25,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:58:26,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:26,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611359224] [2022-11-25 23:58:26,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611359224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:26,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:26,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547948418] [2022-11-25 23:58:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:26,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:26,052 INFO L87 Difference]: Start difference. First operand 3516 states and 4871 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:58:28,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:31,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:35,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:37,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:37,188 INFO L93 Difference]: Finished difference Result 3666 states and 5030 transitions. [2022-11-25 23:58:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 62 [2022-11-25 23:58:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:37,214 INFO L225 Difference]: With dead ends: 3666 [2022-11-25 23:58:37,215 INFO L226 Difference]: Without dead ends: 3664 [2022-11-25 23:58:37,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:37,219 INFO L413 NwaCegarLoop]: 3281 mSDtfsCounter, 1894 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:37,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 9253 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1093 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-25 23:58:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2022-11-25 23:58:37,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3522. [2022-11-25 23:58:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2028 states have (on average 1.244575936883629) internal successors, (2524), 2111 states have internal predecessors, (2524), 1178 states have call successors, (1178), 289 states have call predecessors, (1178), 288 states have return successors, (1176), 1170 states have call predecessors, (1176), 1176 states have call successors, (1176) [2022-11-25 23:58:37,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4878 transitions. [2022-11-25 23:58:37,505 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4878 transitions. Word has length 62 [2022-11-25 23:58:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:37,506 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 4878 transitions. [2022-11-25 23:58:37,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:58:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4878 transitions. [2022-11-25 23:58:37,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 23:58:37,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:37,511 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:58:37,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:58:37,511 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:58:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2142156663, now seen corresponding path program 1 times [2022-11-25 23:58:37,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:37,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756592581] [2022-11-25 23:58:37,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:37,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:58:37,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756592581] [2022-11-25 23:58:37,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756592581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:37,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:37,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674679739] [2022-11-25 23:58:37,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:37,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:37,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:37,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:37,958 INFO L87 Difference]: Start difference. First operand 3522 states and 4878 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:58:39,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:40,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:43,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:46,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:49,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:51,472 INFO L93 Difference]: Finished difference Result 3665 states and 5029 transitions. [2022-11-25 23:58:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 67 [2022-11-25 23:58:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:51,493 INFO L225 Difference]: With dead ends: 3665 [2022-11-25 23:58:51,493 INFO L226 Difference]: Without dead ends: 3663 [2022-11-25 23:58:51,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:51,497 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 1954 mSDsluCounter, 5982 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:51,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 9273 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1089 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-25 23:58:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2022-11-25 23:58:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3528. [2022-11-25 23:58:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2031 states have (on average 1.2442146725750862) internal successors, (2527), 2114 states have internal predecessors, (2527), 1180 states have call successors, (1180), 290 states have call predecessors, (1180), 289 states have return successors, (1178), 1172 states have call predecessors, (1178), 1178 states have call successors, (1178) [2022-11-25 23:58:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4885 transitions. [2022-11-25 23:58:51,739 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4885 transitions. Word has length 67 [2022-11-25 23:58:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:51,741 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 4885 transitions. [2022-11-25 23:58:51,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:58:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4885 transitions. [2022-11-25 23:58:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 23:58:51,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:51,744 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:58:51,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:58:51,744 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:58:51,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 247664866, now seen corresponding path program 1 times [2022-11-25 23:58:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:51,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841140263] [2022-11-25 23:58:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:58:52,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841140263] [2022-11-25 23:58:52,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841140263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:52,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:52,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:52,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770066352] [2022-11-25 23:58:52,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:52,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:52,177 INFO L87 Difference]: Start difference. First operand 3528 states and 4885 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:58:54,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:55,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:58,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:01,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:03,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:05,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:05,516 INFO L93 Difference]: Finished difference Result 3663 states and 5027 transitions. [2022-11-25 23:59:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:05,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 72 [2022-11-25 23:59:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:05,534 INFO L225 Difference]: With dead ends: 3663 [2022-11-25 23:59:05,534 INFO L226 Difference]: Without dead ends: 3661 [2022-11-25 23:59:05,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:05,577 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 1951 mSDsluCounter, 5982 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 9273 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:05,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 9273 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1089 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-25 23:59:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2022-11-25 23:59:05,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3534. [2022-11-25 23:59:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2034 states have (on average 1.2438544739429696) internal successors, (2530), 2117 states have internal predecessors, (2530), 1182 states have call successors, (1182), 291 states have call predecessors, (1182), 290 states have return successors, (1180), 1174 states have call predecessors, (1180), 1180 states have call successors, (1180) [2022-11-25 23:59:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4892 transitions. [2022-11-25 23:59:05,772 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4892 transitions. Word has length 72 [2022-11-25 23:59:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:05,773 INFO L495 AbstractCegarLoop]: Abstraction has 3534 states and 4892 transitions. [2022-11-25 23:59:05,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:59:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4892 transitions. [2022-11-25 23:59:05,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 23:59:05,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:05,776 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 23:59:05,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:59:05,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:59:05,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:05,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1327715267, now seen corresponding path program 1 times [2022-11-25 23:59:05,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:05,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623755541] [2022-11-25 23:59:05,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:05,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:06,138 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 23:59:06,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:06,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623755541] [2022-11-25 23:59:06,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623755541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:06,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:06,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:06,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661091143] [2022-11-25 23:59:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:06,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:06,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:06,142 INFO L87 Difference]: Start difference. First operand 3534 states and 4892 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:59:08,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:11,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:14,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:15,196 INFO L93 Difference]: Finished difference Result 7914 states and 10907 transitions. [2022-11-25 23:59:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:15,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2022-11-25 23:59:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:15,226 INFO L225 Difference]: With dead ends: 7914 [2022-11-25 23:59:15,227 INFO L226 Difference]: Without dead ends: 4398 [2022-11-25 23:59:15,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:15,246 INFO L413 NwaCegarLoop]: 3406 mSDtfsCounter, 1911 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 5428 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:15,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 5428 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 709 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 23:59:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2022-11-25 23:59:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 4388. [2022-11-25 23:59:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 2527 states have (on average 1.2402057776018995) internal successors, (3134), 2620 states have internal predecessors, (3134), 1451 states have call successors, (1451), 383 states have call predecessors, (1451), 382 states have return successors, (1449), 1443 states have call predecessors, (1449), 1449 states have call successors, (1449) [2022-11-25 23:59:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 6034 transitions. [2022-11-25 23:59:15,558 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 6034 transitions. Word has length 89 [2022-11-25 23:59:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:15,560 INFO L495 AbstractCegarLoop]: Abstraction has 4388 states and 6034 transitions. [2022-11-25 23:59:15,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:59:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 6034 transitions. [2022-11-25 23:59:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 23:59:15,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:15,566 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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] [2022-11-25 23:59:15,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:59:15,567 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:59:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash 992918983, now seen corresponding path program 1 times [2022-11-25 23:59:15,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:15,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580582885] [2022-11-25 23:59:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:15,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 23:59:16,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:16,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580582885] [2022-11-25 23:59:16,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580582885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:16,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:16,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:59:16,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206036026] [2022-11-25 23:59:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:16,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:59:16,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:16,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:59:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:16,210 INFO L87 Difference]: Start difference. First operand 4388 states and 6034 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:59:19,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:22,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:24,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:28,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:31,768 INFO L93 Difference]: Finished difference Result 7187 states and 9873 transitions. [2022-11-25 23:59:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:59:31,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 92 [2022-11-25 23:59:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:31,809 INFO L225 Difference]: With dead ends: 7187 [2022-11-25 23:59:31,809 INFO L226 Difference]: Without dead ends: 7185 [2022-11-25 23:59:31,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:59:31,815 INFO L413 NwaCegarLoop]: 4398 mSDtfsCounter, 2809 mSDsluCounter, 11470 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 15868 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:31,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 15868 Invalid, 1957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1952 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-25 23:59:31,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-11-25 23:59:32,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 7005. [2022-11-25 23:59:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 4047 states have (on average 1.2404250061774154) internal successors, (5020), 4185 states have internal predecessors, (5020), 2324 states have call successors, (2324), 609 states have call predecessors, (2324), 606 states have return successors, (2333), 2304 states have call predecessors, (2333), 2322 states have call successors, (2333) [2022-11-25 23:59:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 9677 transitions. [2022-11-25 23:59:32,292 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 9677 transitions. Word has length 92 [2022-11-25 23:59:32,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:32,293 INFO L495 AbstractCegarLoop]: Abstraction has 7005 states and 9677 transitions. [2022-11-25 23:59:32,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:59:32,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 9677 transitions. [2022-11-25 23:59:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 23:59:32,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:32,295 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:59:32,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:59:32,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:59:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:32,296 INFO L85 PathProgramCache]: Analyzing trace with hash 472553461, now seen corresponding path program 1 times [2022-11-25 23:59:32,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:32,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959752783] [2022-11-25 23:59:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:32,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:59:32,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:32,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959752783] [2022-11-25 23:59:32,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959752783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:32,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:32,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539092745] [2022-11-25 23:59:32,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:32,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:32,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:32,765 INFO L87 Difference]: Start difference. First operand 7005 states and 9677 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 23:59:36,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:39,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:42,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:44,055 INFO L93 Difference]: Finished difference Result 7127 states and 9807 transitions. [2022-11-25 23:59:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:44,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 77 [2022-11-25 23:59:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:44,078 INFO L225 Difference]: With dead ends: 7127 [2022-11-25 23:59:44,079 INFO L226 Difference]: Without dead ends: 7125 [2022-11-25 23:59:44,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:44,083 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1878 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:44,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-25 23:59:44,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2022-11-25 23:59:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7011. [2022-11-25 23:59:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 4050 states have (on average 1.240246913580247) internal successors, (5023), 4188 states have internal predecessors, (5023), 2326 states have call successors, (2326), 610 states have call predecessors, (2326), 607 states have return successors, (2335), 2306 states have call predecessors, (2335), 2324 states have call successors, (2335) [2022-11-25 23:59:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 9684 transitions. [2022-11-25 23:59:44,522 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 9684 transitions. Word has length 77 [2022-11-25 23:59:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:44,522 INFO L495 AbstractCegarLoop]: Abstraction has 7011 states and 9684 transitions. [2022-11-25 23:59:44,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 23:59:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 9684 transitions. [2022-11-25 23:59:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 23:59:44,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:44,526 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:44,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:59:44,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:59:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1253935147, now seen corresponding path program 1 times [2022-11-25 23:59:44,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:44,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767488500] [2022-11-25 23:59:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:44,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 23:59:44,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:44,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767488500] [2022-11-25 23:59:44,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767488500] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:59:44,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484415907] [2022-11-25 23:59:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:44,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:59:44,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:59:44,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:59:44,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:59:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:46,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:59:46,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:59:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 23:59:46,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:59:46,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484415907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:46,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:59:46,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-25 23:59:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219053471] [2022-11-25 23:59:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:46,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:59:46,503 INFO L87 Difference]: Start difference. First operand 7011 states and 9684 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:59:49,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:51,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:54,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:56,004 INFO L93 Difference]: Finished difference Result 14024 states and 19359 transitions. [2022-11-25 23:59:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-25 23:59:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:56,036 INFO L225 Difference]: With dead ends: 14024 [2022-11-25 23:59:56,037 INFO L226 Difference]: Without dead ends: 7031 [2022-11-25 23:59:56,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:59:56,129 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 1900 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1900 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:56,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1900 Valid, 5440 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 710 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-11-25 23:59:56,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2022-11-25 23:59:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7019. [2022-11-25 23:59:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 4054 states have (on average 1.2395165268870252) internal successors, (5025), 4192 states have internal predecessors, (5025), 2328 states have call successors, (2328), 612 states have call predecessors, (2328), 609 states have return successors, (2337), 2308 states have call predecessors, (2337), 2326 states have call successors, (2337) [2022-11-25 23:59:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 9690 transitions. [2022-11-25 23:59:56,562 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 9690 transitions. Word has length 94 [2022-11-25 23:59:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:56,564 INFO L495 AbstractCegarLoop]: Abstraction has 7019 states and 9690 transitions. [2022-11-25 23:59:56,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:59:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 9690 transitions. [2022-11-25 23:59:56,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:59:56,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:56,566 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 23:59:56,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:59:56,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:59:56,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:59:56,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:56,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1843896113, now seen corresponding path program 1 times [2022-11-25 23:59:56,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:56,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918305760] [2022-11-25 23:59:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:57,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 23:59:57,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:57,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918305760] [2022-11-25 23:59:57,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918305760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:57,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:57,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156568694] [2022-11-25 23:59:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:57,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:57,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:57,301 INFO L87 Difference]: Start difference. First operand 7019 states and 9690 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:59:59,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:03,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:06,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:08,759 INFO L93 Difference]: Finished difference Result 7131 states and 9810 transitions. [2022-11-26 00:00:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 82 [2022-11-26 00:00:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:08,792 INFO L225 Difference]: With dead ends: 7131 [2022-11-26 00:00:08,793 INFO L226 Difference]: Without dead ends: 7129 [2022-11-26 00:00:08,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:08,801 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1878 mSDsluCounter, 6283 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 9879 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:08,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 9879 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-11-26 00:00:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2022-11-26 00:00:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 7027. [2022-11-26 00:00:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 4059 states have (on average 1.2394678492239468) internal successors, (5031), 4197 states have internal predecessors, (5031), 2330 states have call successors, (2330), 613 states have call predecessors, (2330), 610 states have return successors, (2339), 2310 states have call predecessors, (2339), 2328 states have call successors, (2339) [2022-11-26 00:00:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9700 transitions. [2022-11-26 00:00:09,318 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9700 transitions. Word has length 82 [2022-11-26 00:00:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:09,322 INFO L495 AbstractCegarLoop]: Abstraction has 7027 states and 9700 transitions. [2022-11-26 00:00:09,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:00:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9700 transitions. [2022-11-26 00:00:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-26 00:00:09,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:09,324 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:09,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:00:09,324 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:00:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1837176076, now seen corresponding path program 1 times [2022-11-26 00:00:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:09,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219716963] [2022-11-26 00:00:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:00:09,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:09,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219716963] [2022-11-26 00:00:09,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219716963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:09,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:09,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:09,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650959843] [2022-11-26 00:00:09,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:09,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:09,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:09,743 INFO L87 Difference]: Start difference. First operand 7027 states and 9700 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:00:14,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:19,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:20,834 INFO L93 Difference]: Finished difference Result 7130 states and 9809 transitions. [2022-11-26 00:00:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 84 [2022-11-26 00:00:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:20,866 INFO L225 Difference]: With dead ends: 7130 [2022-11-26 00:00:20,866 INFO L226 Difference]: Without dead ends: 7128 [2022-11-26 00:00:20,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:20,872 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1929 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:20,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-11-26 00:00:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7128 states. [2022-11-26 00:00:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7128 to 7027. [2022-11-26 00:00:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 4059 states have (on average 1.239221483123922) internal successors, (5030), 4197 states have internal predecessors, (5030), 2330 states have call successors, (2330), 613 states have call predecessors, (2330), 610 states have return successors, (2339), 2310 states have call predecessors, (2339), 2328 states have call successors, (2339) [2022-11-26 00:00:21,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9699 transitions. [2022-11-26 00:00:21,336 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9699 transitions. Word has length 84 [2022-11-26 00:00:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:21,337 INFO L495 AbstractCegarLoop]: Abstraction has 7027 states and 9699 transitions. [2022-11-26 00:00:21,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:00:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9699 transitions. [2022-11-26 00:00:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-26 00:00:21,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:21,339 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:00:21,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:00:21,340 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:00:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 160907997, now seen corresponding path program 1 times [2022-11-26 00:00:21,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:21,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914457210] [2022-11-26 00:00:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:21,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:00:21,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:21,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914457210] [2022-11-26 00:00:21,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914457210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:21,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:21,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:21,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008390392] [2022-11-26 00:00:21,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:21,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:21,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:21,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:21,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:21,854 INFO L87 Difference]: Start difference. First operand 7027 states and 9699 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:00:24,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:27,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:30,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:32,528 INFO L93 Difference]: Finished difference Result 7127 states and 9806 transitions. [2022-11-26 00:00:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:32,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 89 [2022-11-26 00:00:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:32,553 INFO L225 Difference]: With dead ends: 7127 [2022-11-26 00:00:32,554 INFO L226 Difference]: Without dead ends: 7125 [2022-11-26 00:00:32,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:32,559 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1865 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:32,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-11-26 00:00:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2022-11-26 00:00:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7033. [2022-11-26 00:00:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 4062 states have (on average 1.239044805514525) internal successors, (5033), 4200 states have internal predecessors, (5033), 2332 states have call successors, (2332), 614 states have call predecessors, (2332), 611 states have return successors, (2341), 2312 states have call predecessors, (2341), 2330 states have call successors, (2341) [2022-11-26 00:00:33,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 9706 transitions. [2022-11-26 00:00:33,085 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 9706 transitions. Word has length 89 [2022-11-26 00:00:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:33,085 INFO L495 AbstractCegarLoop]: Abstraction has 7033 states and 9706 transitions. [2022-11-26 00:00:33,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:00:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 9706 transitions. [2022-11-26 00:00:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-26 00:00:33,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:33,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:00:33,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:00:33,088 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:00:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1556543143, now seen corresponding path program 1 times [2022-11-26 00:00:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402596835] [2022-11-26 00:00:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:33,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:00:33,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:33,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402596835] [2022-11-26 00:00:33,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402596835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:33,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:33,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349866060] [2022-11-26 00:00:33,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:33,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:33,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:33,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:33,531 INFO L87 Difference]: Start difference. First operand 7033 states and 9706 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:00:35,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:37,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:40,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:43,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:46,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:48,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:50,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:52,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:52,015 INFO L93 Difference]: Finished difference Result 7126 states and 9805 transitions. [2022-11-26 00:00:52,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:52,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 94 [2022-11-26 00:00:52,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:52,036 INFO L225 Difference]: With dead ends: 7126 [2022-11-26 00:00:52,036 INFO L226 Difference]: Without dead ends: 7124 [2022-11-26 00:00:52,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:52,040 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1925 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:52,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 9903 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 5 Unknown, 0 Unchecked, 18.1s Time] [2022-11-26 00:00:52,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-26 00:00:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 7039. [2022-11-26 00:00:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 4065 states have (on average 1.238868388683887) internal successors, (5036), 4203 states have internal predecessors, (5036), 2334 states have call successors, (2334), 615 states have call predecessors, (2334), 612 states have return successors, (2343), 2314 states have call predecessors, (2343), 2332 states have call successors, (2343) [2022-11-26 00:00:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 9713 transitions. [2022-11-26 00:00:52,548 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 9713 transitions. Word has length 94 [2022-11-26 00:00:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:52,548 INFO L495 AbstractCegarLoop]: Abstraction has 7039 states and 9713 transitions. [2022-11-26 00:00:52,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:00:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 9713 transitions. [2022-11-26 00:00:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-26 00:00:52,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:52,551 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:00:52,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:00:52,551 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:00:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1226978774, now seen corresponding path program 1 times [2022-11-26 00:00:52,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:52,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061588761] [2022-11-26 00:00:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:52,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:00:53,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:53,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061588761] [2022-11-26 00:00:53,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061588761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:53,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:53,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:53,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291460667] [2022-11-26 00:00:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:53,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:53,034 INFO L87 Difference]: Start difference. First operand 7039 states and 9713 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:00:54,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:56,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:00,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:02,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:04,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:07,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:09,307 INFO L93 Difference]: Finished difference Result 7124 states and 9803 transitions. [2022-11-26 00:01:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 99 [2022-11-26 00:01:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:09,327 INFO L225 Difference]: With dead ends: 7124 [2022-11-26 00:01:09,328 INFO L226 Difference]: Without dead ends: 7122 [2022-11-26 00:01:09,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:09,334 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1922 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:09,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 9903 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2022-11-26 00:01:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2022-11-26 00:01:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 7045. [2022-11-26 00:01:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 4068 states have (on average 1.238692232055064) internal successors, (5039), 4206 states have internal predecessors, (5039), 2336 states have call successors, (2336), 616 states have call predecessors, (2336), 613 states have return successors, (2345), 2316 states have call predecessors, (2345), 2334 states have call successors, (2345) [2022-11-26 00:01:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9720 transitions. [2022-11-26 00:01:09,726 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9720 transitions. Word has length 99 [2022-11-26 00:01:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:09,726 INFO L495 AbstractCegarLoop]: Abstraction has 7045 states and 9720 transitions. [2022-11-26 00:01:09,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:01:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9720 transitions. [2022-11-26 00:01:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-26 00:01:09,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:09,730 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:09,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:01:09,730 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:01:09,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:09,731 INFO L85 PathProgramCache]: Analyzing trace with hash -55967937, now seen corresponding path program 1 times [2022-11-26 00:01:09,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427525815] [2022-11-26 00:01:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:01:10,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:10,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427525815] [2022-11-26 00:01:10,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427525815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:10,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:10,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740701764] [2022-11-26 00:01:10,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:10,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:10,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:10,190 INFO L87 Difference]: Start difference. First operand 7045 states and 9720 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:01:13,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:16,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:18,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:20,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:22,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:24,296 INFO L93 Difference]: Finished difference Result 7122 states and 9801 transitions. [2022-11-26 00:01:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 104 [2022-11-26 00:01:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:24,317 INFO L225 Difference]: With dead ends: 7122 [2022-11-26 00:01:24,317 INFO L226 Difference]: Without dead ends: 7120 [2022-11-26 00:01:24,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:24,321 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1919 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:24,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-11-26 00:01:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-11-26 00:01:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7051. [2022-11-26 00:01:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 4071 states have (on average 1.2385163350528126) internal successors, (5042), 4209 states have internal predecessors, (5042), 2338 states have call successors, (2338), 617 states have call predecessors, (2338), 614 states have return successors, (2347), 2318 states have call predecessors, (2347), 2336 states have call successors, (2347) [2022-11-26 00:01:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 9727 transitions. [2022-11-26 00:01:24,732 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 9727 transitions. Word has length 104 [2022-11-26 00:01:24,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:24,733 INFO L495 AbstractCegarLoop]: Abstraction has 7051 states and 9727 transitions. [2022-11-26 00:01:24,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:01:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 9727 transitions. [2022-11-26 00:01:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-26 00:01:24,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:24,736 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 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] [2022-11-26 00:01:24,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:01:24,736 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:01:24,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 344070894, now seen corresponding path program 1 times [2022-11-26 00:01:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:24,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180111518] [2022-11-26 00:01:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-26 00:01:25,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:25,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180111518] [2022-11-26 00:01:25,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180111518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:25,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:25,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:01:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120413430] [2022-11-26 00:01:25,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:25,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:01:25,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:01:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:25,105 INFO L87 Difference]: Start difference. First operand 7051 states and 9727 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-26 00:01:27,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:30,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:33,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:34,891 INFO L93 Difference]: Finished difference Result 14132 states and 19765 transitions. [2022-11-26 00:01:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:01:34,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 126 [2022-11-26 00:01:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:34,918 INFO L225 Difference]: With dead ends: 14132 [2022-11-26 00:01:34,918 INFO L226 Difference]: Without dead ends: 7099 [2022-11-26 00:01:34,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:34,953 INFO L413 NwaCegarLoop]: 2719 mSDtfsCounter, 5 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:34,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5433 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 708 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-11-26 00:01:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-11-26 00:01:35,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7057. [2022-11-26 00:01:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 4077 states have (on average 1.2381653176355163) internal successors, (5048), 4215 states have internal predecessors, (5048), 2338 states have call successors, (2338), 617 states have call predecessors, (2338), 614 states have return successors, (2347), 2318 states have call predecessors, (2347), 2336 states have call successors, (2347) [2022-11-26 00:01:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 9733 transitions. [2022-11-26 00:01:35,488 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 9733 transitions. Word has length 126 [2022-11-26 00:01:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:35,488 INFO L495 AbstractCegarLoop]: Abstraction has 7057 states and 9733 transitions. [2022-11-26 00:01:35,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-26 00:01:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 9733 transitions. [2022-11-26 00:01:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-26 00:01:35,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:35,492 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:01:35,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:01:35,494 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:01:35,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash -965876920, now seen corresponding path program 1 times [2022-11-26 00:01:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:35,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803603994] [2022-11-26 00:01:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:01:35,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:35,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803603994] [2022-11-26 00:01:35,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803603994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:35,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068495036] [2022-11-26 00:01:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:35,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:35,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:35,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:35,932 INFO L87 Difference]: Start difference. First operand 7057 states and 9733 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:01:37,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:41,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:46,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:48,095 INFO L93 Difference]: Finished difference Result 7126 states and 9805 transitions. [2022-11-26 00:01:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:48,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 109 [2022-11-26 00:01:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:48,114 INFO L225 Difference]: With dead ends: 7126 [2022-11-26 00:01:48,115 INFO L226 Difference]: Without dead ends: 7124 [2022-11-26 00:01:48,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:48,119 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1916 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:48,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1918 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-11-26 00:01:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-26 00:01:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 7063. [2022-11-26 00:01:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 4080 states have (on average 1.2379901960784314) internal successors, (5051), 4218 states have internal predecessors, (5051), 2340 states have call successors, (2340), 618 states have call predecessors, (2340), 615 states have return successors, (2349), 2320 states have call predecessors, (2349), 2338 states have call successors, (2349) [2022-11-26 00:01:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 9740 transitions. [2022-11-26 00:01:48,572 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 9740 transitions. Word has length 109 [2022-11-26 00:01:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:48,573 INFO L495 AbstractCegarLoop]: Abstraction has 7063 states and 9740 transitions. [2022-11-26 00:01:48,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:01:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 9740 transitions. [2022-11-26 00:01:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-26 00:01:48,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:48,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:48,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:01:48,575 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:01:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:48,576 INFO L85 PathProgramCache]: Analyzing trace with hash -56788860, now seen corresponding path program 1 times [2022-11-26 00:01:48,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:48,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255496815] [2022-11-26 00:01:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:48,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:01:49,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:49,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255496815] [2022-11-26 00:01:49,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255496815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:49,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:49,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:49,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538893698] [2022-11-26 00:01:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:49,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:49,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:49,127 INFO L87 Difference]: Start difference. First operand 7063 states and 9740 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:01:52,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:55,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:58,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:00,271 INFO L93 Difference]: Finished difference Result 7123 states and 9802 transitions. [2022-11-26 00:02:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:02:00,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 114 [2022-11-26 00:02:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:00,291 INFO L225 Difference]: With dead ends: 7123 [2022-11-26 00:02:00,291 INFO L226 Difference]: Without dead ends: 7121 [2022-11-26 00:02:00,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:00,296 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1850 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:00,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-26 00:02:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2022-11-26 00:02:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 7069. [2022-11-26 00:02:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 4083 states have (on average 1.2378153318638256) internal successors, (5054), 4221 states have internal predecessors, (5054), 2342 states have call successors, (2342), 619 states have call predecessors, (2342), 616 states have return successors, (2351), 2322 states have call predecessors, (2351), 2340 states have call successors, (2351) [2022-11-26 00:02:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 9747 transitions. [2022-11-26 00:02:00,823 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 9747 transitions. Word has length 114 [2022-11-26 00:02:00,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:00,824 INFO L495 AbstractCegarLoop]: Abstraction has 7069 states and 9747 transitions. [2022-11-26 00:02:00,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:02:00,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 9747 transitions. [2022-11-26 00:02:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-26 00:02:00,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:00,827 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 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] [2022-11-26 00:02:00,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:02:00,828 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:02:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:00,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1333247592, now seen corresponding path program 1 times [2022-11-26 00:02:00,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:00,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750237635] [2022-11-26 00:02:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-26 00:02:01,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:01,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750237635] [2022-11-26 00:02:01,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750237635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:01,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:01,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:02:01,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706841886] [2022-11-26 00:02:01,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:01,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:02:01,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:02:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:01,433 INFO L87 Difference]: Start difference. First operand 7069 states and 9747 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:02:04,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:06,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:09,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:12,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:14,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:15,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:17,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:19,169 INFO L93 Difference]: Finished difference Result 7153 states and 9842 transitions. [2022-11-26 00:02:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:02:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 135 [2022-11-26 00:02:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:19,196 INFO L225 Difference]: With dead ends: 7153 [2022-11-26 00:02:19,197 INFO L226 Difference]: Without dead ends: 7151 [2022-11-26 00:02:19,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:02:19,203 INFO L413 NwaCegarLoop]: 2737 mSDtfsCounter, 107 mSDsluCounter, 8145 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 10882 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:19,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 10882 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1414 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2022-11-26 00:02:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2022-11-26 00:02:19,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 7151. [2022-11-26 00:02:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 4135 states have (on average 1.2370012091898428) internal successors, (5115), 4273 states have internal predecessors, (5115), 2357 states have call successors, (2357), 634 states have call predecessors, (2357), 631 states have return successors, (2366), 2337 states have call predecessors, (2366), 2355 states have call successors, (2366) [2022-11-26 00:02:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 9838 transitions. [2022-11-26 00:02:19,813 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 9838 transitions. Word has length 135 [2022-11-26 00:02:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:19,813 INFO L495 AbstractCegarLoop]: Abstraction has 7151 states and 9838 transitions. [2022-11-26 00:02:19,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:02:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 9838 transitions. [2022-11-26 00:02:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-26 00:02:19,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:19,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:02:19,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:02:19,823 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:02:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1196991987, now seen corresponding path program 1 times [2022-11-26 00:02:19,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:19,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870674315] [2022-11-26 00:02:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:02:20,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:20,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870674315] [2022-11-26 00:02:20,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870674315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:20,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:20,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:20,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245041115] [2022-11-26 00:02:20,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:20,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:02:20,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:20,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:02:20,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:02:20,673 INFO L87 Difference]: Start difference. First operand 7151 states and 9838 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:02:22,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:24,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:27,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:29,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:32,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:33,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:33,803 INFO L93 Difference]: Finished difference Result 7202 states and 9891 transitions. [2022-11-26 00:02:33,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:02:33,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 119 [2022-11-26 00:02:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:33,823 INFO L225 Difference]: With dead ends: 7202 [2022-11-26 00:02:33,823 INFO L226 Difference]: Without dead ends: 7200 [2022-11-26 00:02:33,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:33,828 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1908 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:33,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-26 00:02:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-11-26 00:02:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7157. [2022-11-26 00:02:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7157 states, 4138 states have (on average 1.236829386176897) internal successors, (5118), 4276 states have internal predecessors, (5118), 2359 states have call successors, (2359), 635 states have call predecessors, (2359), 632 states have return successors, (2368), 2339 states have call predecessors, (2368), 2357 states have call successors, (2368) [2022-11-26 00:02:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 9845 transitions. [2022-11-26 00:02:34,216 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 9845 transitions. Word has length 119 [2022-11-26 00:02:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:34,216 INFO L495 AbstractCegarLoop]: Abstraction has 7157 states and 9845 transitions. [2022-11-26 00:02:34,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:02:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 9845 transitions. [2022-11-26 00:02:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-26 00:02:34,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:34,220 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:02:34,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:02:34,220 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:02:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash 328159060, now seen corresponding path program 1 times [2022-11-26 00:02:34,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:34,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112974697] [2022-11-26 00:02:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:34,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:02:34,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:34,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112974697] [2022-11-26 00:02:34,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112974697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:34,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:34,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:34,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31773290] [2022-11-26 00:02:34,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:34,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:02:34,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:34,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:02:34,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:02:34,658 INFO L87 Difference]: Start difference. First operand 7157 states and 9845 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:02:37,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:40,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:43,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:45,507 INFO L93 Difference]: Finished difference Result 7199 states and 9888 transitions. [2022-11-26 00:02:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:02:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 124 [2022-11-26 00:02:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:45,531 INFO L225 Difference]: With dead ends: 7199 [2022-11-26 00:02:45,532 INFO L226 Difference]: Without dead ends: 7197 [2022-11-26 00:02:45,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:45,536 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1842 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:45,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-26 00:02:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2022-11-26 00:02:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 7163. [2022-11-26 00:02:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7163 states, 4141 states have (on average 1.2366578121226757) internal successors, (5121), 4279 states have internal predecessors, (5121), 2361 states have call successors, (2361), 636 states have call predecessors, (2361), 633 states have return successors, (2370), 2341 states have call predecessors, (2370), 2359 states have call successors, (2370) [2022-11-26 00:02:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7163 states to 7163 states and 9852 transitions. [2022-11-26 00:02:45,897 INFO L78 Accepts]: Start accepts. Automaton has 7163 states and 9852 transitions. Word has length 124 [2022-11-26 00:02:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:45,898 INFO L495 AbstractCegarLoop]: Abstraction has 7163 states and 9852 transitions. [2022-11-26 00:02:45,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:02:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7163 states and 9852 transitions. [2022-11-26 00:02:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-26 00:02:45,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:45,900 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:02:45,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:02:45,900 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:02:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:45,901 INFO L85 PathProgramCache]: Analyzing trace with hash -234815193, now seen corresponding path program 1 times [2022-11-26 00:02:45,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:45,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534099254] [2022-11-26 00:02:45,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:45,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:02:46,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:46,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534099254] [2022-11-26 00:02:46,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534099254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:46,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:46,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:46,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36118272] [2022-11-26 00:02:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:46,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:02:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:46,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:02:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:02:46,379 INFO L87 Difference]: Start difference. First operand 7163 states and 9852 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:02:49,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:51,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:53,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:56,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:00,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:02,177 INFO L93 Difference]: Finished difference Result 7198 states and 9887 transitions. [2022-11-26 00:03:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:03:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 129 [2022-11-26 00:03:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:02,205 INFO L225 Difference]: With dead ends: 7198 [2022-11-26 00:03:02,205 INFO L226 Difference]: Without dead ends: 7196 [2022-11-26 00:03:02,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:02,211 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1902 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:02,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1904 Valid, 9903 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-11-26 00:03:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7196 states. [2022-11-26 00:03:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7196 to 7169. [2022-11-26 00:03:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 4144 states have (on average 1.2364864864864864) internal successors, (5124), 4282 states have internal predecessors, (5124), 2363 states have call successors, (2363), 637 states have call predecessors, (2363), 634 states have return successors, (2372), 2343 states have call predecessors, (2372), 2361 states have call successors, (2372) [2022-11-26 00:03:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 9859 transitions. [2022-11-26 00:03:02,828 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 9859 transitions. Word has length 129 [2022-11-26 00:03:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:02,830 INFO L495 AbstractCegarLoop]: Abstraction has 7169 states and 9859 transitions. [2022-11-26 00:03:02,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:03:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 9859 transitions. [2022-11-26 00:03:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-26 00:03:02,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:02,842 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:02,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:03:02,843 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:03:02,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1990977650, now seen corresponding path program 1 times [2022-11-26 00:03:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:02,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241776318] [2022-11-26 00:03:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:02,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:03:03,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:03,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241776318] [2022-11-26 00:03:03,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241776318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:03,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:03,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:03:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017629035] [2022-11-26 00:03:03,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:03,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:03:03,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:03,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:03:03,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:03:03,347 INFO L87 Difference]: Start difference. First operand 7169 states and 9859 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:03:06,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:08,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:12,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:14,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:16,784 INFO L93 Difference]: Finished difference Result 7196 states and 9885 transitions. [2022-11-26 00:03:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:03:16,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 134 [2022-11-26 00:03:16,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:16,803 INFO L225 Difference]: With dead ends: 7196 [2022-11-26 00:03:16,803 INFO L226 Difference]: Without dead ends: 7194 [2022-11-26 00:03:16,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:16,807 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1899 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:16,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-11-26 00:03:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7194 states. [2022-11-26 00:03:17,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7194 to 7175. [2022-11-26 00:03:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 4147 states have (on average 1.2363154087292019) internal successors, (5127), 4285 states have internal predecessors, (5127), 2365 states have call successors, (2365), 638 states have call predecessors, (2365), 635 states have return successors, (2374), 2345 states have call predecessors, (2374), 2363 states have call successors, (2374) [2022-11-26 00:03:17,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 9866 transitions. [2022-11-26 00:03:17,155 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 9866 transitions. Word has length 134 [2022-11-26 00:03:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:17,155 INFO L495 AbstractCegarLoop]: Abstraction has 7175 states and 9866 transitions. [2022-11-26 00:03:17,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:03:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 9866 transitions. [2022-11-26 00:03:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-26 00:03:17,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:17,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-26 00:03:17,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:03:17,158 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:03:17,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1153284059, now seen corresponding path program 1 times [2022-11-26 00:03:17,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:17,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250785911] [2022-11-26 00:03:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:03:17,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:17,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250785911] [2022-11-26 00:03:17,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250785911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:17,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:17,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:03:17,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349198391] [2022-11-26 00:03:17,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:17,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:03:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:03:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:03:17,580 INFO L87 Difference]: Start difference. First operand 7175 states and 9866 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:03:20,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:23,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:27,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:29,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:29,246 INFO L93 Difference]: Finished difference Result 7193 states and 9882 transitions. [2022-11-26 00:03:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:03:29,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 139 [2022-11-26 00:03:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:29,264 INFO L225 Difference]: With dead ends: 7193 [2022-11-26 00:03:29,264 INFO L226 Difference]: Without dead ends: 7191 [2022-11-26 00:03:29,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:29,268 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1833 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:29,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-26 00:03:29,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2022-11-26 00:03:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 7181. [2022-11-26 00:03:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7181 states, 4150 states have (on average 1.236144578313253) internal successors, (5130), 4288 states have internal predecessors, (5130), 2367 states have call successors, (2367), 639 states have call predecessors, (2367), 636 states have return successors, (2376), 2347 states have call predecessors, (2376), 2365 states have call successors, (2376) [2022-11-26 00:03:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 9873 transitions. [2022-11-26 00:03:29,721 INFO L78 Accepts]: Start accepts. Automaton has 7181 states and 9873 transitions. Word has length 139 [2022-11-26 00:03:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:29,721 INFO L495 AbstractCegarLoop]: Abstraction has 7181 states and 9873 transitions. [2022-11-26 00:03:29,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:03:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7181 states and 9873 transitions. [2022-11-26 00:03:29,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-26 00:03:29,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:29,724 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:29,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:03:29,724 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:03:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:29,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1224850064, now seen corresponding path program 1 times [2022-11-26 00:03:29,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:29,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999397130] [2022-11-26 00:03:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:29,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:03:30,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999397130] [2022-11-26 00:03:30,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999397130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:30,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:30,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:03:30,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880369806] [2022-11-26 00:03:30,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:30,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:03:30,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:30,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:03:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:03:30,081 INFO L87 Difference]: Start difference. First operand 7181 states and 9873 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:03:32,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:35,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:39,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:41,318 INFO L93 Difference]: Finished difference Result 7191 states and 9880 transitions. [2022-11-26 00:03:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:03:41,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 144 [2022-11-26 00:03:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:41,340 INFO L225 Difference]: With dead ends: 7191 [2022-11-26 00:03:41,341 INFO L226 Difference]: Without dead ends: 6996 [2022-11-26 00:03:41,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:41,352 INFO L413 NwaCegarLoop]: 3597 mSDtfsCounter, 1829 mSDsluCounter, 6288 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 9885 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:41,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 9885 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-26 00:03:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6996 states. [2022-11-26 00:03:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6996 to 6992. [2022-11-26 00:03:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 4050 states have (on average 1.2392592592592593) internal successors, (5019), 4185 states have internal predecessors, (5019), 2302 states have call successors, (2302), 615 states have call predecessors, (2302), 612 states have return successors, (2311), 2284 states have call predecessors, (2311), 2300 states have call successors, (2311) [2022-11-26 00:03:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 9632 transitions. [2022-11-26 00:03:41,784 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 9632 transitions. Word has length 144 [2022-11-26 00:03:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:41,785 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 9632 transitions. [2022-11-26 00:03:41,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:03:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 9632 transitions. [2022-11-26 00:03:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-26 00:03:41,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:41,790 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:41,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:03:41,791 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:03:41,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:41,791 INFO L85 PathProgramCache]: Analyzing trace with hash 983983816, now seen corresponding path program 1 times [2022-11-26 00:03:41,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:41,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3943729] [2022-11-26 00:03:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:41,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:42,779 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-26 00:03:42,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:42,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3943729] [2022-11-26 00:03:42,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3943729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:42,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:42,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:03:42,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111106542] [2022-11-26 00:03:42,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:42,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:42,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:42,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:42,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:42,782 INFO L87 Difference]: Start difference. First operand 6992 states and 9632 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:03:45,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:46,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:48,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:51,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:54,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:55,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:55,893 INFO L93 Difference]: Finished difference Result 14103 states and 19743 transitions. [2022-11-26 00:03:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:55,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 188 [2022-11-26 00:03:55,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:55,915 INFO L225 Difference]: With dead ends: 14103 [2022-11-26 00:03:55,916 INFO L226 Difference]: Without dead ends: 8386 [2022-11-26 00:03:55,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:55,938 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 599 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:55,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 5811 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 721 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-11-26 00:03:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8386 states. [2022-11-26 00:03:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8386 to 6992. [2022-11-26 00:03:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 4050 states have (on average 1.2390123456790123) internal successors, (5018), 4185 states have internal predecessors, (5018), 2302 states have call successors, (2302), 615 states have call predecessors, (2302), 612 states have return successors, (2311), 2284 states have call predecessors, (2311), 2300 states have call successors, (2311) [2022-11-26 00:03:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 9631 transitions. [2022-11-26 00:03:56,333 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 9631 transitions. Word has length 188 [2022-11-26 00:03:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:56,334 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 9631 transitions. [2022-11-26 00:03:56,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:03:56,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 9631 transitions. [2022-11-26 00:03:56,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-26 00:03:56,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:56,339 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:56,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:03:56,339 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:03:56,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash -440165128, now seen corresponding path program 1 times [2022-11-26 00:03:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919658098] [2022-11-26 00:03:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:56,482 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:03:56,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610800648] [2022-11-26 00:03:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:56,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:56,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:56,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:03:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:58,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 3769 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 00:03:58,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-26 00:03:58,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:58,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:58,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919658098] [2022-11-26 00:03:58,516 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:03:58,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610800648] [2022-11-26 00:03:58,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610800648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:58,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:58,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:03:58,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597895080] [2022-11-26 00:03:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:58,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:03:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:03:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:03:58,519 INFO L87 Difference]: Start difference. First operand 6992 states and 9631 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2022-11-26 00:04:02,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:04,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:10,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:17,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:22,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:22,242 INFO L93 Difference]: Finished difference Result 14494 states and 20091 transitions. [2022-11-26 00:04:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:04:22,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 202 [2022-11-26 00:04:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:22,264 INFO L225 Difference]: With dead ends: 14494 [2022-11-26 00:04:22,264 INFO L226 Difference]: Without dead ends: 7515 [2022-11-26 00:04:22,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:04:22,288 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 228 mSDsluCounter, 25938 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 295 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 28889 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:22,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 28889 Invalid, 4393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 4095 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2022-11-26 00:04:22,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-11-26 00:04:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 7028. [2022-11-26 00:04:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 4074 states have (on average 1.237604320078547) internal successors, (5042), 4209 states have internal predecessors, (5042), 2314 states have call successors, (2314), 615 states have call predecessors, (2314), 612 states have return successors, (2323), 2296 states have call predecessors, (2323), 2312 states have call successors, (2323) [2022-11-26 00:04:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 9679 transitions. [2022-11-26 00:04:22,724 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 9679 transitions. Word has length 202 [2022-11-26 00:04:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:22,724 INFO L495 AbstractCegarLoop]: Abstraction has 7028 states and 9679 transitions. [2022-11-26 00:04:22,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2022-11-26 00:04:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 9679 transitions. [2022-11-26 00:04:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-26 00:04:22,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:22,729 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:22,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:04:22,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-26 00:04:22,943 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:04:22,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash 824139137, now seen corresponding path program 1 times [2022-11-26 00:04:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:22,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325357548] [2022-11-26 00:04:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:23,121 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:04:23,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755244497] [2022-11-26 00:04:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:23,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:04:23,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:04:23,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:04:23,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:04:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:24,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 3818 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-26 00:04:24,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:04:25,865 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-26 00:04:25,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:04:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-26 00:04:26,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:26,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325357548] [2022-11-26 00:04:26,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:04:26,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755244497] [2022-11-26 00:04:26,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755244497] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-26 00:04:26,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:04:26,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-26 00:04:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373072142] [2022-11-26 00:04:26,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:26,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:04:26,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:26,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:04:26,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:04:26,534 INFO L87 Difference]: Start difference. First operand 7028 states and 9679 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-26 00:04:30,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:32,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:34,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:37,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:42,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:43,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:47,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:04:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:55,319 INFO L93 Difference]: Finished difference Result 12272 states and 16877 transitions. [2022-11-26 00:04:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:04:55,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 207 [2022-11-26 00:04:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:55,355 INFO L225 Difference]: With dead ends: 12272 [2022-11-26 00:04:55,355 INFO L226 Difference]: Without dead ends: 12270 [2022-11-26 00:04:55,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:04:55,362 INFO L413 NwaCegarLoop]: 4428 mSDtfsCounter, 2880 mSDsluCounter, 17210 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 21638 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:55,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2885 Valid, 21638 Invalid, 4255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4246 Invalid, 4 Unknown, 0 Unchecked, 27.7s Time] [2022-11-26 00:04:55,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12270 states. [2022-11-26 00:04:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12270 to 12082. [2022-11-26 00:04:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12082 states, 7011 states have (on average 1.2364855227499643) internal successors, (8669), 7223 states have internal predecessors, (8669), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-26 00:04:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12082 states to 12082 states and 16665 transitions. [2022-11-26 00:04:56,283 INFO L78 Accepts]: Start accepts. Automaton has 12082 states and 16665 transitions. Word has length 207 [2022-11-26 00:04:56,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:56,284 INFO L495 AbstractCegarLoop]: Abstraction has 12082 states and 16665 transitions. [2022-11-26 00:04:56,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-26 00:04:56,285 INFO L276 IsEmpty]: Start isEmpty. Operand 12082 states and 16665 transitions. [2022-11-26 00:04:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-26 00:04:56,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:56,290 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:56,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:04:56,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-26 00:04:56,507 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:04:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2070295488, now seen corresponding path program 1 times [2022-11-26 00:04:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:56,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151168063] [2022-11-26 00:04:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:56,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:56,646 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:04:56,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632085039] [2022-11-26 00:04:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:04:56,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:04:56,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:04:56,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:04:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:58,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 3829 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:04:58,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:04:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-26 00:04:58,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:04:58,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:58,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151168063] [2022-11-26 00:04:58,985 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:04:58,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632085039] [2022-11-26 00:04:58,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632085039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:58,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:58,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:04:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526930991] [2022-11-26 00:04:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:58,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:04:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:04:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:58,990 INFO L87 Difference]: Start difference. First operand 12082 states and 16665 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-26 00:05:00,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:03,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:05,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:08,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:10,498 INFO L93 Difference]: Finished difference Result 24147 states and 33307 transitions. [2022-11-26 00:05:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:10,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2022-11-26 00:05:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:10,533 INFO L225 Difference]: With dead ends: 24147 [2022-11-26 00:05:10,533 INFO L226 Difference]: Without dead ends: 12081 [2022-11-26 00:05:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:10,567 INFO L413 NwaCegarLoop]: 3263 mSDtfsCounter, 1567 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 5953 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 722 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-11-26 00:05:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12081 states. [2022-11-26 00:05:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12081 to 12080. [2022-11-26 00:05:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12080 states, 7009 states have (on average 1.236267655871023) internal successors, (8665), 7221 states have internal predecessors, (8665), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-26 00:05:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12080 states to 12080 states and 16661 transitions. [2022-11-26 00:05:11,191 INFO L78 Accepts]: Start accepts. Automaton has 12080 states and 16661 transitions. Word has length 210 [2022-11-26 00:05:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:11,191 INFO L495 AbstractCegarLoop]: Abstraction has 12080 states and 16661 transitions. [2022-11-26 00:05:11,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-26 00:05:11,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12080 states and 16661 transitions. [2022-11-26 00:05:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-26 00:05:11,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:11,196 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:05:11,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:11,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:11,410 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:05:11,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1006524517, now seen corresponding path program 1 times [2022-11-26 00:05:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149109342] [2022-11-26 00:05:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-26 00:05:12,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:12,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149109342] [2022-11-26 00:05:12,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149109342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:12,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:12,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:05:12,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852827588] [2022-11-26 00:05:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:12,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:05:12,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:12,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:05:12,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:05:12,264 INFO L87 Difference]: Start difference. First operand 12080 states and 16661 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-26 00:05:15,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:17,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:19,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:21,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:24,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:27,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:31,040 INFO L93 Difference]: Finished difference Result 27140 states and 38096 transitions. [2022-11-26 00:05:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:05:31,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 209 [2022-11-26 00:05:31,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:31,109 INFO L225 Difference]: With dead ends: 27140 [2022-11-26 00:05:31,110 INFO L226 Difference]: Without dead ends: 15076 [2022-11-26 00:05:31,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:05:31,150 INFO L413 NwaCegarLoop]: 3543 mSDtfsCounter, 1246 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 686 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 9318 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:31,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 9318 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1123 Invalid, 6 Unknown, 0 Unchecked, 17.4s Time] [2022-11-26 00:05:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15076 states. [2022-11-26 00:05:31,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15076 to 12080. [2022-11-26 00:05:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12080 states, 7009 states have (on average 1.2354116136396063) internal successors, (8659), 7221 states have internal predecessors, (8659), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-26 00:05:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12080 states to 12080 states and 16655 transitions. [2022-11-26 00:05:32,007 INFO L78 Accepts]: Start accepts. Automaton has 12080 states and 16655 transitions. Word has length 209 [2022-11-26 00:05:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:32,008 INFO L495 AbstractCegarLoop]: Abstraction has 12080 states and 16655 transitions. [2022-11-26 00:05:32,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-26 00:05:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 12080 states and 16655 transitions. [2022-11-26 00:05:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-26 00:05:32,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:32,016 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:05:32,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:05:32,017 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:05:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 331889292, now seen corresponding path program 1 times [2022-11-26 00:05:32,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:32,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029104118] [2022-11-26 00:05:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:32,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-26 00:05:32,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:32,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029104118] [2022-11-26 00:05:32,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029104118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:32,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:32,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:05:32,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667044392] [2022-11-26 00:05:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:32,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:32,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:32,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:32,897 INFO L87 Difference]: Start difference. First operand 12080 states and 16655 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-26 00:05:36,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:39,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:42,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:44,211 INFO L93 Difference]: Finished difference Result 24216 states and 33559 transitions. [2022-11-26 00:05:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:44,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 237 [2022-11-26 00:05:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:44,253 INFO L225 Difference]: With dead ends: 24216 [2022-11-26 00:05:44,253 INFO L226 Difference]: Without dead ends: 12152 [2022-11-26 00:05:44,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:44,288 INFO L413 NwaCegarLoop]: 2714 mSDtfsCounter, 11 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:44,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5413 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 704 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-26 00:05:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12152 states. [2022-11-26 00:05:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12152 to 12089. [2022-11-26 00:05:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12089 states, 7018 states have (on average 1.2351097178683386) internal successors, (8668), 7230 states have internal predecessors, (8668), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-26 00:05:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12089 states to 12089 states and 16664 transitions. [2022-11-26 00:05:44,993 INFO L78 Accepts]: Start accepts. Automaton has 12089 states and 16664 transitions. Word has length 237 [2022-11-26 00:05:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:44,993 INFO L495 AbstractCegarLoop]: Abstraction has 12089 states and 16664 transitions. [2022-11-26 00:05:44,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-26 00:05:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 12089 states and 16664 transitions. [2022-11-26 00:05:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-26 00:05:44,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:44,997 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:05:44,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:05:44,997 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:05:44,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1675307638, now seen corresponding path program 1 times [2022-11-26 00:05:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:44,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743162896] [2022-11-26 00:05:44,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:44,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-26 00:05:45,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:45,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743162896] [2022-11-26 00:05:45,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743162896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:45,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:05:45,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:05:45,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507069476] [2022-11-26 00:05:45,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:45,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:45,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:45,931 INFO L87 Difference]: Start difference. First operand 12089 states and 16664 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:05:47,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:49,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:52,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:05:54,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:54,403 INFO L93 Difference]: Finished difference Result 23015 states and 31742 transitions. [2022-11-26 00:05:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:05:54,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 242 [2022-11-26 00:05:54,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:54,442 INFO L225 Difference]: With dead ends: 23015 [2022-11-26 00:05:54,442 INFO L226 Difference]: Without dead ends: 12294 [2022-11-26 00:05:54,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:05:54,473 INFO L413 NwaCegarLoop]: 3015 mSDtfsCounter, 2024 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:54,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 4882 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:05:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12294 states. [2022-11-26 00:05:55,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12294 to 12237. [2022-11-26 00:05:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12237 states, 7105 states have (on average 1.235186488388459) internal successors, (8776), 7316 states have internal predecessors, (8776), 4019 states have call successors, (4019), 1088 states have call predecessors, (4019), 1085 states have return successors, (4047), 3987 states have call predecessors, (4047), 4017 states have call successors, (4047) [2022-11-26 00:05:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12237 states to 12237 states and 16842 transitions. [2022-11-26 00:05:55,478 INFO L78 Accepts]: Start accepts. Automaton has 12237 states and 16842 transitions. Word has length 242 [2022-11-26 00:05:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:55,479 INFO L495 AbstractCegarLoop]: Abstraction has 12237 states and 16842 transitions. [2022-11-26 00:05:55,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:05:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12237 states and 16842 transitions. [2022-11-26 00:05:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-26 00:05:55,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:55,485 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:05:55,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-26 00:05:55,486 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:05:55,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:55,486 INFO L85 PathProgramCache]: Analyzing trace with hash 286332584, now seen corresponding path program 1 times [2022-11-26 00:05:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:55,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046835411] [2022-11-26 00:05:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:55,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-26 00:05:56,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:56,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046835411] [2022-11-26 00:05:56,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046835411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:56,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057288377] [2022-11-26 00:05:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:56,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:56,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:56,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:56,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:05:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:58,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:05:58,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-26 00:05:59,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:05:59,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057288377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:59,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:05:59,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-26 00:05:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390371581] [2022-11-26 00:05:59,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:59,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:05:59,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:59,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:05:59,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:05:59,210 INFO L87 Difference]: Start difference. First operand 12237 states and 16842 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:06:00,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:02,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:05,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:07,770 INFO L93 Difference]: Finished difference Result 25900 states and 35719 transitions. [2022-11-26 00:06:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:06:07,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 247 [2022-11-26 00:06:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:07,818 INFO L225 Difference]: With dead ends: 25900 [2022-11-26 00:06:07,818 INFO L226 Difference]: Without dead ends: 14982 [2022-11-26 00:06:07,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:06:07,850 INFO L413 NwaCegarLoop]: 3239 mSDtfsCounter, 2908 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2908 SdHoareTripleChecker+Valid, 4922 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:07,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2908 Valid, 4922 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:06:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2022-11-26 00:06:08,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 14957. [2022-11-26 00:06:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14957 states, 8695 states have (on average 1.2369177688326625) internal successors, (10755), 8942 states have internal predecessors, (10755), 4919 states have call successors, (4919), 1320 states have call predecessors, (4919), 1315 states have return successors, (4949), 4874 states have call predecessors, (4949), 4917 states have call successors, (4949) [2022-11-26 00:06:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14957 states to 14957 states and 20623 transitions. [2022-11-26 00:06:08,700 INFO L78 Accepts]: Start accepts. Automaton has 14957 states and 20623 transitions. Word has length 247 [2022-11-26 00:06:08,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:08,700 INFO L495 AbstractCegarLoop]: Abstraction has 14957 states and 20623 transitions. [2022-11-26 00:06:08,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:06:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 14957 states and 20623 transitions. [2022-11-26 00:06:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-26 00:06:08,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:08,705 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:06:08,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:06:08,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:08,928 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:06:08,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash 468364346, now seen corresponding path program 1 times [2022-11-26 00:06:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:08,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528426483] [2022-11-26 00:06:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:09,276 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:06:09,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836857501] [2022-11-26 00:06:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:09,279 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:09,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:06:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:11,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 6381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:06:11,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:06:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-26 00:06:11,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:06:11,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:11,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528426483] [2022-11-26 00:06:11,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:06:11,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836857501] [2022-11-26 00:06:11,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836857501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:11,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:06:11,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:06:11,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58031800] [2022-11-26 00:06:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:11,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:06:11,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:11,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:06:11,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:06:11,881 INFO L87 Difference]: Start difference. First operand 14957 states and 20623 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 00:06:15,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:17,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:21,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:24,306 INFO L93 Difference]: Finished difference Result 29519 states and 40981 transitions. [2022-11-26 00:06:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:06:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289 [2022-11-26 00:06:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:24,346 INFO L225 Difference]: With dead ends: 29519 [2022-11-26 00:06:24,346 INFO L226 Difference]: Without dead ends: 15881 [2022-11-26 00:06:24,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:06:24,370 INFO L413 NwaCegarLoop]: 3115 mSDtfsCounter, 321 mSDsluCounter, 5828 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 196 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 8943 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:24,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 8943 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1115 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-11-26 00:06:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15881 states. [2022-11-26 00:06:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15881 to 14959. [2022-11-26 00:06:25,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14959 states, 8697 states have (on average 1.2368632861906403) internal successors, (10757), 8944 states have internal predecessors, (10757), 4919 states have call successors, (4919), 1320 states have call predecessors, (4919), 1315 states have return successors, (4949), 4874 states have call predecessors, (4949), 4917 states have call successors, (4949) [2022-11-26 00:06:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14959 states to 14959 states and 20625 transitions. [2022-11-26 00:06:25,346 INFO L78 Accepts]: Start accepts. Automaton has 14959 states and 20625 transitions. Word has length 289 [2022-11-26 00:06:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:25,346 INFO L495 AbstractCegarLoop]: Abstraction has 14959 states and 20625 transitions. [2022-11-26 00:06:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 00:06:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14959 states and 20625 transitions. [2022-11-26 00:06:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-26 00:06:25,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:25,351 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:06:25,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:06:25,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-26 00:06:25,552 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:06:25,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash 872189018, now seen corresponding path program 1 times [2022-11-26 00:06:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:25,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686548656] [2022-11-26 00:06:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:25,853 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:06:25,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150766312] [2022-11-26 00:06:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:25,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:25,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:25,855 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:25,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:06:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:30,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 6412 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-26 00:06:30,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:06:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-26 00:06:30,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:06:30,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:30,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686548656] [2022-11-26 00:06:30,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:06:30,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150766312] [2022-11-26 00:06:30,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150766312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:30,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:06:30,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:06:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649789170] [2022-11-26 00:06:30,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:30,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:06:30,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:06:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:06:30,592 INFO L87 Difference]: Start difference. First operand 14959 states and 20625 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 00:06:34,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:36,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:40,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:44,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:06:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:46,647 INFO L93 Difference]: Finished difference Result 31277 states and 43446 transitions. [2022-11-26 00:06:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:06:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 295 [2022-11-26 00:06:46,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:46,854 INFO L225 Difference]: With dead ends: 31277 [2022-11-26 00:06:46,854 INFO L226 Difference]: Without dead ends: 16334 [2022-11-26 00:06:46,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:06:46,889 INFO L413 NwaCegarLoop]: 3084 mSDtfsCounter, 300 mSDsluCounter, 5793 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 190 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 8877 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:46,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 8877 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1113 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2022-11-26 00:06:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16334 states. [2022-11-26 00:06:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16334 to 14969. [2022-11-26 00:06:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14969 states, 8707 states have (on average 1.2365912484208108) internal successors, (10767), 8954 states have internal predecessors, (10767), 4919 states have call successors, (4919), 1320 states have call predecessors, (4919), 1315 states have return successors, (4949), 4874 states have call predecessors, (4949), 4917 states have call successors, (4949) [2022-11-26 00:06:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14969 states to 14969 states and 20635 transitions. [2022-11-26 00:06:48,085 INFO L78 Accepts]: Start accepts. Automaton has 14969 states and 20635 transitions. Word has length 295 [2022-11-26 00:06:48,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:48,086 INFO L495 AbstractCegarLoop]: Abstraction has 14969 states and 20635 transitions. [2022-11-26 00:06:48,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 00:06:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14969 states and 20635 transitions. [2022-11-26 00:06:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-26 00:06:48,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:06:48,094 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:06:48,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:06:48,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-26 00:06:48,311 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:06:48,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:06:48,311 INFO L85 PathProgramCache]: Analyzing trace with hash 532558161, now seen corresponding path program 1 times [2022-11-26 00:06:48,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:06:48,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90212394] [2022-11-26 00:06:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:48,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:06:48,605 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:06:48,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214770180] [2022-11-26 00:06:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:06:48,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:48,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:48,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:06:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:53,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 6485 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-26 00:06:53,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:06:55,150 INFO L321 Elim1Store]: treesize reduction 9770, result has 8.9 percent of original size [2022-11-26 00:06:55,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 159 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1118 treesize of output 1762 [2022-11-26 00:06:55,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1264 treesize of output 984 [2022-11-26 00:06:55,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 984 treesize of output 704 [2022-11-26 00:06:55,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,307 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:06:56,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,584 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:06:56,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:56,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:57,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:57,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:57,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:57,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:57,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:06:58,229 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:06:59,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:06:59,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:06:59,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:06:59,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:00,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:00,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:00,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-26 00:07:00,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:00,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:00,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-26 00:07:01,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 124 [2022-11-26 00:07:02,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 203 [2022-11-26 00:07:02,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 162 [2022-11-26 00:07:02,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 121 [2022-11-26 00:07:02,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 193 [2022-11-26 00:07:02,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 121 [2022-11-26 00:07:02,535 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_13604 Int) (atomic_set_~v.offset Int)) (and (= (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_13604)) |c_#memory_int|) (<= |c_atomic_set_#in~v.offset| atomic_set_~v.offset))) is different from true [2022-11-26 00:07:02,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:07:02,588 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:07:02,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 78 treesize of output 95 [2022-11-26 00:07:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-26 00:07:04,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:07:04,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:07:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90212394] [2022-11-26 00:07:04,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:07:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214770180] [2022-11-26 00:07:04,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214770180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:07:04,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:07:04,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-26 00:07:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129317186] [2022-11-26 00:07:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:07:04,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-26 00:07:04,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:07:04,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-26 00:07:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2022-11-26 00:07:04,268 INFO L87 Difference]: Start difference. First operand 14969 states and 20635 transitions. Second operand has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) [2022-11-26 00:07:08,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:07:11,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:13,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:15,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:16,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:17,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:18,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:20,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:07:22,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:24,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:26,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:33,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:35,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:37,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:39,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:41,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:43,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:07:45,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:17,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:46,078 INFO L93 Difference]: Finished difference Result 33036 states and 46588 transitions. [2022-11-26 00:08:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:08:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) Word has length 312 [2022-11-26 00:08:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:46,168 INFO L225 Difference]: With dead ends: 33036 [2022-11-26 00:08:46,168 INFO L226 Difference]: Without dead ends: 19386 [2022-11-26 00:08:46,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 290 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=138, Invalid=857, Unknown=1, NotChecked=60, Total=1056 [2022-11-26 00:08:46,215 INFO L413 NwaCegarLoop]: 3471 mSDtfsCounter, 2164 mSDsluCounter, 27293 mSDsCounter, 0 mSdLazyCounter, 33069 mSolverCounterSat, 1880 mSolverCounterUnsat, 56 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2877 SdHoareTripleChecker+Valid, 30764 SdHoareTripleChecker+Invalid, 40923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1880 IncrementalHoareTripleChecker+Valid, 33069 IncrementalHoareTripleChecker+Invalid, 56 IncrementalHoareTripleChecker+Unknown, 5918 IncrementalHoareTripleChecker+Unchecked, 98.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:46,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2877 Valid, 30764 Invalid, 40923 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1880 Valid, 33069 Invalid, 56 Unknown, 5918 Unchecked, 98.4s Time] [2022-11-26 00:08:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2022-11-26 00:08:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 15542. [2022-11-26 00:08:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15542 states, 9062 states have (on average 1.239020083866696) internal successors, (11228), 9331 states have internal predecessors, (11228), 5070 states have call successors, (5070), 1374 states have call predecessors, (5070), 1382 states have return successors, (5131), 5021 states have call predecessors, (5131), 5068 states have call successors, (5131) [2022-11-26 00:08:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15542 states to 15542 states and 21429 transitions. [2022-11-26 00:08:47,392 INFO L78 Accepts]: Start accepts. Automaton has 15542 states and 21429 transitions. Word has length 312 [2022-11-26 00:08:47,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:47,392 INFO L495 AbstractCegarLoop]: Abstraction has 15542 states and 21429 transitions. [2022-11-26 00:08:47,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) [2022-11-26 00:08:47,393 INFO L276 IsEmpty]: Start isEmpty. Operand 15542 states and 21429 transitions. [2022-11-26 00:08:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-26 00:08:47,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:47,402 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:47,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:08:47,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:47,631 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:08:47,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:47,631 INFO L85 PathProgramCache]: Analyzing trace with hash -799628991, now seen corresponding path program 1 times [2022-11-26 00:08:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:47,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704653444] [2022-11-26 00:08:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:47,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:47,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:08:47,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380768870] [2022-11-26 00:08:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:47,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:47,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:47,918 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:47,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:08:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:54,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 6598 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-26 00:08:54,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-26 00:08:54,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:08:54,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:54,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704653444] [2022-11-26 00:08:54,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:08:54,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380768870] [2022-11-26 00:08:54,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380768870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:54,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:54,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:08:54,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135938519] [2022-11-26 00:08:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:54,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:54,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:54,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:54,198 INFO L87 Difference]: Start difference. First operand 15542 states and 21429 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 00:08:57,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:01,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:04,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:06,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:08,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:10,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:12,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:12,608 INFO L93 Difference]: Finished difference Result 29795 states and 41127 transitions. [2022-11-26 00:09:12,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:09:12,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) Word has length 337 [2022-11-26 00:09:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:12,667 INFO L225 Difference]: With dead ends: 29795 [2022-11-26 00:09:12,667 INFO L226 Difference]: Without dead ends: 15574 [2022-11-26 00:09:12,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:12,700 INFO L413 NwaCegarLoop]: 2711 mSDtfsCounter, 0 mSDsluCounter, 8127 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10838 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:12,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10838 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2022-11-26 00:09:12,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15574 states. [2022-11-26 00:09:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15574 to 15562. [2022-11-26 00:09:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15562 states, 9077 states have (on average 1.238625096397488) internal successors, (11243), 9346 states have internal predecessors, (11243), 5070 states have call successors, (5070), 1374 states have call predecessors, (5070), 1387 states have return successors, (5141), 5026 states have call predecessors, (5141), 5068 states have call successors, (5141) [2022-11-26 00:09:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15562 states to 15562 states and 21454 transitions. [2022-11-26 00:09:13,597 INFO L78 Accepts]: Start accepts. Automaton has 15562 states and 21454 transitions. Word has length 337 [2022-11-26 00:09:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:13,597 INFO L495 AbstractCegarLoop]: Abstraction has 15562 states and 21454 transitions. [2022-11-26 00:09:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 00:09:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 15562 states and 21454 transitions. [2022-11-26 00:09:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-26 00:09:13,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:13,603 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:13,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:09:13,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-26 00:09:13,804 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:09:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1481443836, now seen corresponding path program 1 times [2022-11-26 00:09:13,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:13,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890301141] [2022-11-26 00:09:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:14,206 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:09:14,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765274818] [2022-11-26 00:09:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:14,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:09:14,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:09:14,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:09:14,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:09:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:19,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 6647 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-26 00:09:19,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:09:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-11-26 00:09:20,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:09:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-26 00:09:21,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:21,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890301141] [2022-11-26 00:09:21,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:09:21,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765274818] [2022-11-26 00:09:21,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765274818] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-26 00:09:21,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:09:21,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2022-11-26 00:09:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917910364] [2022-11-26 00:09:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:21,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:09:21,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:21,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:09:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:09:21,941 INFO L87 Difference]: Start difference. First operand 15562 states and 21454 transitions. Second operand has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-26 00:09:26,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:30,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:36,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:44,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:45,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:47,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:49,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:51,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:53,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:54,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:57,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:02,269 INFO L93 Difference]: Finished difference Result 22387 states and 31097 transitions. [2022-11-26 00:10:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:10:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) Word has length 350 [2022-11-26 00:10:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:02,336 INFO L225 Difference]: With dead ends: 22387 [2022-11-26 00:10:02,336 INFO L226 Difference]: Without dead ends: 22385 [2022-11-26 00:10:02,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:10:02,346 INFO L413 NwaCegarLoop]: 3917 mSDtfsCounter, 6284 mSDsluCounter, 18312 mSDsCounter, 0 mSdLazyCounter, 5244 mSolverCounterSat, 3054 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 22229 SdHoareTripleChecker+Invalid, 8305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3054 IncrementalHoareTripleChecker+Valid, 5244 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:02,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 22229 Invalid, 8305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3054 Valid, 5244 Invalid, 7 Unknown, 0 Unchecked, 38.0s Time] [2022-11-26 00:10:02,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22385 states. [2022-11-26 00:10:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22385 to 21332. [2022-11-26 00:10:03,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21332 states, 12452 states have (on average 1.238596209444266) internal successors, (15423), 12814 states have internal predecessors, (15423), 6945 states have call successors, (6945), 1890 states have call predecessors, (6945), 1907 states have return successors, (7061), 6877 states have call predecessors, (7061), 6943 states have call successors, (7061) [2022-11-26 00:10:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21332 states to 21332 states and 29429 transitions. [2022-11-26 00:10:03,762 INFO L78 Accepts]: Start accepts. Automaton has 21332 states and 29429 transitions. Word has length 350 [2022-11-26 00:10:03,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:03,762 INFO L495 AbstractCegarLoop]: Abstraction has 21332 states and 29429 transitions. [2022-11-26 00:10:03,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-26 00:10:03,763 INFO L276 IsEmpty]: Start isEmpty. Operand 21332 states and 29429 transitions. [2022-11-26 00:10:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-26 00:10:03,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:03,769 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:03,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-26 00:10:03,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-26 00:10:03,971 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:10:03,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1564944477, now seen corresponding path program 1 times [2022-11-26 00:10:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:03,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091252537] [2022-11-26 00:10:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:03,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:04,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:10:04,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134424625] [2022-11-26 00:10:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:04,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:10:04,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:10:04,264 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:10:04,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:10:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:07,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 6658 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:10:07,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:10:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-26 00:10:08,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:10:08,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:08,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091252537] [2022-11-26 00:10:08,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:10:08,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134424625] [2022-11-26 00:10:08,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134424625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:08,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:08,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:10:08,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421735492] [2022-11-26 00:10:08,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:08,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:10:08,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:10:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:08,469 INFO L87 Difference]: Start difference. First operand 21332 states and 29429 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-26 00:10:10,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:13,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:16,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:20,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:22,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:24,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:25,749 INFO L93 Difference]: Finished difference Result 53339 states and 73557 transitions. [2022-11-26 00:10:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:10:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 353 [2022-11-26 00:10:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:25,855 INFO L225 Difference]: With dead ends: 53339 [2022-11-26 00:10:25,855 INFO L226 Difference]: Without dead ends: 33332 [2022-11-26 00:10:25,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:25,901 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 2785 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6199 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:25,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 6199 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 710 Invalid, 5 Unknown, 0 Unchecked, 15.0s Time] [2022-11-26 00:10:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33332 states. [2022-11-26 00:10:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33332 to 33150. [2022-11-26 00:10:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33150 states, 19334 states have (on average 1.2370952725768076) internal successors, (23918), 19893 states have internal predecessors, (23918), 10782 states have call successors, (10782), 2977 states have call predecessors, (10782), 3006 states have return successors, (10965), 10672 states have call predecessors, (10965), 10780 states have call successors, (10965) [2022-11-26 00:10:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33150 states to 33150 states and 45665 transitions. [2022-11-26 00:10:28,077 INFO L78 Accepts]: Start accepts. Automaton has 33150 states and 45665 transitions. Word has length 353 [2022-11-26 00:10:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:28,078 INFO L495 AbstractCegarLoop]: Abstraction has 33150 states and 45665 transitions. [2022-11-26 00:10:28,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-26 00:10:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 33150 states and 45665 transitions. [2022-11-26 00:10:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-26 00:10:28,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:28,085 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:28,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:10:28,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75bcc1a-75b3-404f-a344-ca51cdd9f5f0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-26 00:10:28,285 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-26 00:10:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1508905454, now seen corresponding path program 1 times [2022-11-26 00:10:28,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:28,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936962944] [2022-11-26 00:10:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:28,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-11-26 00:10:30,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:30,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936962944] [2022-11-26 00:10:30,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936962944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:30,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:30,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:10:30,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860908353] [2022-11-26 00:10:30,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:30,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:10:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:30,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:10:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:30,065 INFO L87 Difference]: Start difference. First operand 33150 states and 45665 transitions. Second operand has 8 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 3 states have call successors, (64), 1 states have call predecessors, (64), 3 states have return successors, (64), 4 states have call predecessors, (64), 3 states have call successors, (64)