./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--usb--kaweth.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/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_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/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_f965a61c-f529-4034-aedc-66e976fbc892/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 f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- 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 [2022-11-26 00:13:22,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:13:22,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:13:22,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:13:22,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:13:22,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:13:22,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:13:22,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:13:22,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:13:22,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:13:22,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:13:22,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:13:22,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:13:22,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:13:22,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:13:22,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:13:22,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:13:22,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:13:22,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:13:22,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:13:22,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:13:22,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:13:22,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:13:22,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:13:22,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:13:22,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:13:22,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:13:22,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:13:22,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:13:22,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:13:22,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:13:22,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:13:22,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:13:22,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:13:22,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:13:22,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:13:22,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:13:22,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:13:22,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:13:22,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:13:22,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:13:22,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:13:22,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:13:22,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:13:22,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:13:22,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:13:22,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:13:22,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:13:22,189 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:13:22,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:13:22,189 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:13:22,190 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:13:22,190 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:13:22,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:13:22,191 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:13:22,191 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:13:22,192 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:13:22,192 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:13:22,192 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:13:22,193 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:13:22,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:13:22,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:13:22,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:13:22,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:13:22,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:13:22,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:13:22,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:13:22,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:13:22,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:13:22,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:13:22,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:13:22,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:22,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:13:22,198 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:13:22,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:13:22,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:13:22,199 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:13:22,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:13:22,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:13:22,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:13:22,200 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_f965a61c-f529-4034-aedc-66e976fbc892/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2022-11-26 00:13:22,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:13:22,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:13:22,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:13:22,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:13:22,620 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:13:22,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2022-11-26 00:13:26,105 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:13:27,046 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:13:27,047 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2022-11-26 00:13:27,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/data/8203f3e4f/490d944c983149bea11f737141d222cf/FLAG5c39356b6 [2022-11-26 00:13:27,162 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/data/8203f3e4f/490d944c983149bea11f737141d222cf [2022-11-26 00:13:27,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:13:27,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:13:27,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:27,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:13:27,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:13:27,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:27" (1/1) ... [2022-11-26 00:13:27,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a27f1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:27, skipping insertion in model container [2022-11-26 00:13:27,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:27" (1/1) ... [2022-11-26 00:13:27,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:13:27,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:13:28,891 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:13:28,935 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:13:28,946 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:13:28,957 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:13:28,969 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:13:28,980 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:13:29,037 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:13:29,249 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-26 00:13:29,258 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:13:29,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:13:29,283 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:13:29,607 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,610 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,613 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:13:29,621 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,640 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,649 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,657 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 00:13:29,658 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,659 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,660 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:13:29,661 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:13:29,665 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,668 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,671 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,682 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,692 WARN L623 FunctionHandler]: Unknown extern function usb_reset_configuration [2022-11-26 00:13:29,693 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:13:29,695 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,712 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,721 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:13:29,722 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:13:29,733 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,742 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:29,744 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,745 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:29,748 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,751 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,754 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,755 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,757 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,758 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,763 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,765 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:13:29,765 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:13:29,765 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:13:29,774 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,779 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-26 00:13:29,779 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,782 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,784 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-26 00:13:29,791 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,791 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,792 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,792 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work_sync [2022-11-26 00:13:29,792 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,793 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:29,802 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-26 00:13:29,828 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,841 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:29,863 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,873 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,884 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:29,899 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:29,900 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-26 00:13:29,905 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,909 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,918 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,927 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,932 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,936 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:13:29,937 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:13:29,939 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,948 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,949 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,950 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,951 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,952 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,953 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,954 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,955 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,955 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-26 00:13:29,957 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,958 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,959 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,960 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,960 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,961 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:13:29,961 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,964 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,965 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,976 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,978 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,983 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:13:29,985 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:13:29,986 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:13:29,987 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:29,990 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:29,991 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:29,995 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:30,004 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:30,006 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:30,019 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:30,025 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:13:30,026 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:13:30,028 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 00:13:30,033 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-26 00:13:30,034 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 00:13:30,034 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:30,035 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:30,226 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:13:30,227 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:13:30,228 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:13:30,249 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:13:30,252 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:30,253 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:30,253 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:13:30,255 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:30,258 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:13:30,260 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:30,260 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:13:30,262 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:30,263 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-26 00:13:30,264 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-26 00:13:30,266 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:13:30,885 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:13:31,125 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:13:31,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2022-11-26 00:13:31,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2022-11-26 00:13:31,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2022-11-26 00:13:31,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2022-11-26 00:13:31,779 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2022-11-26 00:13:31,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2022-11-26 00:13:31,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2022-11-26 00:13:31,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2022-11-26 00:13:31,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2022-11-26 00:13:31,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2022-11-26 00:13:31,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2022-11-26 00:13:31,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2022-11-26 00:13:31,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2022-11-26 00:13:31,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2022-11-26 00:13:31,784 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2022-11-26 00:13:31,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2022-11-26 00:13:31,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2022-11-26 00:13:31,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2022-11-26 00:13:31,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2022-11-26 00:13:31,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2022-11-26 00:13:31,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2022-11-26 00:13:31,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2022-11-26 00:13:31,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2022-11-26 00:13:31,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2022-11-26 00:13:31,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2022-11-26 00:13:31,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2022-11-26 00:13:31,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2022-11-26 00:13:31,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2022-11-26 00:13:31,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2022-11-26 00:13:31,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2022-11-26 00:13:31,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2022-11-26 00:13:31,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2022-11-26 00:13:31,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2022-11-26 00:13:31,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2022-11-26 00:13:31,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2022-11-26 00:13:31,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2022-11-26 00:13:31,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2022-11-26 00:13:31,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2022-11-26 00:13:31,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2022-11-26 00:13:31,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2022-11-26 00:13:31,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2022-11-26 00:13:31,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2022-11-26 00:13:31,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2022-11-26 00:13:31,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2022-11-26 00:13:31,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2022-11-26 00:13:31,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2022-11-26 00:13:31,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2022-11-26 00:13:31,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2022-11-26 00:13:31,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2022-11-26 00:13:31,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2022-11-26 00:13:31,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2022-11-26 00:13:31,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2022-11-26 00:13:31,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2022-11-26 00:13:31,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2022-11-26 00:13:31,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2022-11-26 00:13:31,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2022-11-26 00:13:31,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2022-11-26 00:13:31,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2022-11-26 00:13:31,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2022-11-26 00:13:31,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2022-11-26 00:13:31,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2022-11-26 00:13:31,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2022-11-26 00:13:31,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2022-11-26 00:13:31,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2022-11-26 00:13:31,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2022-11-26 00:13:31,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2022-11-26 00:13:31,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2022-11-26 00:13:31,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2022-11-26 00:13:31,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2022-11-26 00:13:31,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2022-11-26 00:13:31,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2022-11-26 00:13:31,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2022-11-26 00:13:31,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2022-11-26 00:13:31,822 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2022-11-26 00:13:31,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2022-11-26 00:13:31,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2022-11-26 00:13:31,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2022-11-26 00:13:31,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2022-11-26 00:13:31,825 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2022-11-26 00:13:31,825 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2022-11-26 00:13:31,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2022-11-26 00:13:31,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2022-11-26 00:13:31,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2022-11-26 00:13:31,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2022-11-26 00:13:31,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2022-11-26 00:13:31,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2022-11-26 00:13:31,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2022-11-26 00:13:31,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2022-11-26 00:13:31,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:31,930 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:13:32,147 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:13:32,149 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:13:32,149 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:13:32,150 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:13:32,150 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:13:32,151 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:13:32,152 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:13:32,159 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-26 00:13:32,160 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:13:32,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:13:32,167 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:13:32,198 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,201 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,203 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:13:32,205 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,208 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,212 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,217 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,220 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 00:13:32,221 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,222 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,222 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:13:32,223 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:13:32,225 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,227 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,229 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,234 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,241 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,242 WARN L623 FunctionHandler]: Unknown extern function usb_reset_configuration [2022-11-26 00:13:32,243 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:13:32,245 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,246 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,248 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:13:32,249 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:13:32,256 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,259 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:32,262 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,263 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:32,264 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,267 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,269 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,270 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,271 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,271 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,272 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,274 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:13:32,274 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:13:32,274 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:13:32,277 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,278 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-26 00:13:32,278 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,280 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,280 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-26 00:13:32,281 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,282 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,282 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,282 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work_sync [2022-11-26 00:13:32,283 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,283 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,284 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-26 00:13:32,287 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,291 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:32,294 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,297 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,300 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:32,301 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-26 00:13:32,304 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,311 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,314 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,315 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:13:32,316 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:13:32,317 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,318 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,319 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,319 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,320 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,321 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,321 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,322 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,323 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,323 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-26 00:13:32,324 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,324 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,325 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,325 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,326 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,326 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:13:32,327 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,328 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,329 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,330 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,331 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,334 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:13:32,335 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:13:32,335 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:13:32,338 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:13:32,338 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,340 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:13:32,343 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:13:32,343 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:32,345 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:13:32,346 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:13:32,347 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:13:32,348 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:13:32,349 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-26 00:13:32,350 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-26 00:13:32,351 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-26 00:13:32,351 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:13:32,352 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:13:32,360 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:13:32,361 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:13:32,362 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:13:32,389 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:13:32,391 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:32,392 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:32,392 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:13:32,393 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:32,396 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:13:32,397 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:32,398 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:13:32,399 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:13:32,401 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-26 00:13:32,401 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-26 00:13:32,403 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:13:32,424 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:13:32,436 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:13:32,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2022-11-26 00:13:32,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2022-11-26 00:13:32,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2022-11-26 00:13:32,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2022-11-26 00:13:32,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2022-11-26 00:13:32,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2022-11-26 00:13:32,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2022-11-26 00:13:32,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2022-11-26 00:13:32,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2022-11-26 00:13:32,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2022-11-26 00:13:32,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2022-11-26 00:13:32,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2022-11-26 00:13:32,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2022-11-26 00:13:32,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2022-11-26 00:13:32,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2022-11-26 00:13:32,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2022-11-26 00:13:32,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2022-11-26 00:13:32,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2022-11-26 00:13:32,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2022-11-26 00:13:32,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2022-11-26 00:13:32,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2022-11-26 00:13:32,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2022-11-26 00:13:32,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2022-11-26 00:13:32,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2022-11-26 00:13:32,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2022-11-26 00:13:32,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2022-11-26 00:13:32,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2022-11-26 00:13:32,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2022-11-26 00:13:32,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2022-11-26 00:13:32,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2022-11-26 00:13:32,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2022-11-26 00:13:32,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2022-11-26 00:13:32,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2022-11-26 00:13:32,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2022-11-26 00:13:32,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2022-11-26 00:13:32,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2022-11-26 00:13:32,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2022-11-26 00:13:32,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2022-11-26 00:13:32,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2022-11-26 00:13:32,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2022-11-26 00:13:32,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2022-11-26 00:13:32,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2022-11-26 00:13:32,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2022-11-26 00:13:32,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2022-11-26 00:13:32,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2022-11-26 00:13:32,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2022-11-26 00:13:32,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2022-11-26 00:13:32,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2022-11-26 00:13:32,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2022-11-26 00:13:32,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2022-11-26 00:13:32,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2022-11-26 00:13:32,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2022-11-26 00:13:32,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2022-11-26 00:13:32,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2022-11-26 00:13:32,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2022-11-26 00:13:32,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2022-11-26 00:13:32,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2022-11-26 00:13:32,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2022-11-26 00:13:32,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2022-11-26 00:13:32,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2022-11-26 00:13:32,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2022-11-26 00:13:32,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2022-11-26 00:13:32,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2022-11-26 00:13:32,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2022-11-26 00:13:32,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2022-11-26 00:13:32,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2022-11-26 00:13:32,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2022-11-26 00:13:32,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2022-11-26 00:13:32,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2022-11-26 00:13:32,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2022-11-26 00:13:32,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2022-11-26 00:13:32,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2022-11-26 00:13:32,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2022-11-26 00:13:32,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2022-11-26 00:13:32,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2022-11-26 00:13:32,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2022-11-26 00:13:32,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2022-11-26 00:13:32,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2022-11-26 00:13:32,523 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2022-11-26 00:13:32,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2022-11-26 00:13:32,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2022-11-26 00:13:32,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2022-11-26 00:13:32,525 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2022-11-26 00:13:32,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2022-11-26 00:13:32,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2022-11-26 00:13:32,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2022-11-26 00:13:32,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2022-11-26 00:13:32,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2022-11-26 00:13:32,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:32,915 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:13:32,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32 WrapperNode [2022-11-26 00:13:32,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:32,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:32,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:13:32,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:13:32,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,344 INFO L138 Inliner]: procedures = 616, calls = 2803, calls flagged for inlining = 287, calls inlined = 187, statements flattened = 4762 [2022-11-26 00:13:33,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:33,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:13:33,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:13:33,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:13:33,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,599 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:13:33,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:13:33,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:13:33,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:13:33,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (1/1) ... [2022-11-26 00:13:33,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:33,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:13:33,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:13:33,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-26 00:13:33,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-26 00:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:13:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:13:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2022-11-26 00:13:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2022-11-26 00:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-26 00:13:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-26 00:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-26 00:13:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-26 00:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:13:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2022-11-26 00:13:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2022-11-26 00:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-26 00:13:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-26 00:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-26 00:13:33,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-26 00:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2022-11-26 00:13:33,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2022-11-26 00:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:13:33,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:13:33,832 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:13:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-26 00:13:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-26 00:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-26 00:13:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-26 00:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:13:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2022-11-26 00:13:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2022-11-26 00:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-26 00:13:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-26 00:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:13:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-26 00:13:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-26 00:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-26 00:13:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-26 00:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-26 00:13:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-26 00:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-26 00:13:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-26 00:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:13:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-26 00:13:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-26 00:13:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-26 00:13:33,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-26 00:13:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-26 00:13:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-26 00:13:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2022-11-26 00:13:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2022-11-26 00:13:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-26 00:13:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-26 00:13:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2022-11-26 00:13:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2022-11-26 00:13:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2022-11-26 00:13:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2022-11-26 00:13:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-26 00:13:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-26 00:13:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:13:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:13:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:13:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:13:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:13:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:13:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:13:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:13:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-26 00:13:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-26 00:13:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-26 00:13:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-26 00:13:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:13:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:13:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-26 00:13:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-26 00:13:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-26 00:13:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-26 00:13:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2022-11-26 00:13:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2022-11-26 00:13:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:13:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:13:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-26 00:13:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-26 00:13:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:13:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:13:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:13:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:13:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:13:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:13:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-11-26 00:13:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-11-26 00:13:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-26 00:13:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-26 00:13:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2022-11-26 00:13:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2022-11-26 00:13:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2022-11-26 00:13:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2022-11-26 00:13:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:13:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:13:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-26 00:13:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-26 00:13:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-26 00:13:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-26 00:13:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-26 00:13:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-26 00:13:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-26 00:13:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-26 00:13:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:13:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 00:13:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 00:13:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-26 00:13:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-26 00:13:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:13:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-26 00:13:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-26 00:13:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:13:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-26 00:13:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-26 00:13:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:13:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:13:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-26 00:13:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-26 00:13:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:13:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:13:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-26 00:13:33,854 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-26 00:13:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-26 00:13:33,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-26 00:13:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-26 00:13:33,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-26 00:13:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-26 00:13:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-26 00:13:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-26 00:13:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-26 00:13:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-26 00:13:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-26 00:13:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:13:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:13:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2022-11-26 00:13:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2022-11-26 00:13:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-26 00:13:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-26 00:13:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-26 00:13:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-26 00:13:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-26 00:13:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:13:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-26 00:13:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-26 00:13:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:13:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:13:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-26 00:13:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-26 00:13:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2022-11-26 00:13:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2022-11-26 00:13:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2022-11-26 00:13:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2022-11-26 00:13:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:13:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:13:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-26 00:13:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-26 00:13:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-26 00:13:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2022-11-26 00:13:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2022-11-26 00:13:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2022-11-26 00:13:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2022-11-26 00:13:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:13:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-26 00:13:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-26 00:13:34,981 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:13:34,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:13:35,152 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:13:46,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:13:47,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:13:47,209 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:13:47,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:47 BoogieIcfgContainer [2022-11-26 00:13:47,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:13:47,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:13:47,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:13:47,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:13:47,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:13:27" (1/3) ... [2022-11-26 00:13:47,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba4006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:47, skipping insertion in model container [2022-11-26 00:13:47,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:32" (2/3) ... [2022-11-26 00:13:47,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bba4006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:47, skipping insertion in model container [2022-11-26 00:13:47,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:47" (3/3) ... [2022-11-26 00:13:47,233 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2022-11-26 00:13:47,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:13:47,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-26 00:13:47,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:13:47,367 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;@fb83d2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:13:47,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-26 00:13:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) [2022-11-26 00:13:47,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-26 00:13:47,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:47,395 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:47,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:13:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1061695812, now seen corresponding path program 1 times [2022-11-26 00:13:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:47,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610453429] [2022-11-26 00:13:47,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:47,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:13:49,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:49,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610453429] [2022-11-26 00:13:49,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610453429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:49,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:49,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:13:49,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116482768] [2022-11-26 00:13:49,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:49,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:13:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:13:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:13:49,363 INFO L87 Difference]: Start difference. First operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:13:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:53,400 INFO L93 Difference]: Finished difference Result 1762 states and 2488 transitions. [2022-11-26 00:13:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:13:53,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-11-26 00:13:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:53,424 INFO L225 Difference]: With dead ends: 1762 [2022-11-26 00:13:53,425 INFO L226 Difference]: Without dead ends: 902 [2022-11-26 00:13:53,439 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 00:13:53,442 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 1188 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:53,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2076 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 00:13:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-11-26 00:13:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2022-11-26 00:13:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 498 states have (on average 1.2108433734939759) internal successors, (603), 534 states have internal predecessors, (603), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2022-11-26 00:13:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1195 transitions. [2022-11-26 00:13:53,593 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1195 transitions. Word has length 51 [2022-11-26 00:13:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:53,597 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1195 transitions. [2022-11-26 00:13:53,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:13:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1195 transitions. [2022-11-26 00:13:53,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-26 00:13:53,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:53,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:53,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:13:53,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:13:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash 287276339, now seen corresponding path program 1 times [2022-11-26 00:13:53,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:53,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911350643] [2022-11-26 00:13:53,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:13:54,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:54,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911350643] [2022-11-26 00:13:54,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911350643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:54,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:54,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:13:54,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523383735] [2022-11-26 00:13:54,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:54,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:13:54,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:13:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:13:54,879 INFO L87 Difference]: Start difference. First operand 902 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:13:58,243 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 00:13:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:59,518 INFO L93 Difference]: Finished difference Result 902 states and 1195 transitions. [2022-11-26 00:13:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:13:59,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-11-26 00:13:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:59,527 INFO L225 Difference]: With dead ends: 902 [2022-11-26 00:13:59,527 INFO L226 Difference]: Without dead ends: 900 [2022-11-26 00:13:59,529 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 00:13:59,530 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 1170 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:59,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2044 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:13:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-11-26 00:13:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 900. [2022-11-26 00:13:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 497 states have (on average 1.2092555331991952) internal successors, (601), 532 states have internal predecessors, (601), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2022-11-26 00:13:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1193 transitions. [2022-11-26 00:13:59,610 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1193 transitions. Word has length 56 [2022-11-26 00:13:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:59,611 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1193 transitions. [2022-11-26 00:13:59,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:13:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1193 transitions. [2022-11-26 00:13:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:13:59,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:59,615 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:13:59,616 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:13:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash -760570458, now seen corresponding path program 1 times [2022-11-26 00:13:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:59,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123808318] [2022-11-26 00:13:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:00,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:00,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123808318] [2022-11-26 00:14:00,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123808318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:00,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:00,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:00,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923107619] [2022-11-26 00:14:00,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:00,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:00,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:00,543 INFO L87 Difference]: Start difference. First operand 900 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:14:03,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:05,070 WARN L539 Checker$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 00:14:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:05,619 INFO L93 Difference]: Finished difference Result 900 states and 1193 transitions. [2022-11-26 00:14:05,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:05,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-26 00:14:05,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:05,627 INFO L225 Difference]: With dead ends: 900 [2022-11-26 00:14:05,627 INFO L226 Difference]: Without dead ends: 898 [2022-11-26 00:14:05,628 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 00:14:05,629 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 1167 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:05,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 2040 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:14:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-26 00:14:05,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2022-11-26 00:14:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 496 states have (on average 1.2076612903225807) internal successors, (599), 530 states have internal predecessors, (599), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2022-11-26 00:14:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1191 transitions. [2022-11-26 00:14:05,721 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1191 transitions. Word has length 61 [2022-11-26 00:14:05,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:05,722 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 1191 transitions. [2022-11-26 00:14:05,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:14:05,723 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1191 transitions. [2022-11-26 00:14:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:14:05,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:05,726 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:05,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:14:05,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1056282916, now seen corresponding path program 1 times [2022-11-26 00:14:05,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:05,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384209113] [2022-11-26 00:14:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:05,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:06,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:06,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384209113] [2022-11-26 00:14:06,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384209113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:06,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:06,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808080675] [2022-11-26 00:14:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:06,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:06,647 INFO L87 Difference]: Start difference. First operand 898 states and 1191 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-26 00:14:09,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:10,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:11,541 INFO L93 Difference]: Finished difference Result 898 states and 1191 transitions. [2022-11-26 00:14:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:11,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-11-26 00:14:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:11,549 INFO L225 Difference]: With dead ends: 898 [2022-11-26 00:14:11,550 INFO L226 Difference]: Without dead ends: 896 [2022-11-26 00:14:11,551 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 00:14:11,552 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 1164 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:11,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 2036 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:14:11,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-11-26 00:14:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-11-26 00:14:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 495 states have (on average 1.206060606060606) internal successors, (597), 528 states have internal predecessors, (597), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2022-11-26 00:14:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1189 transitions. [2022-11-26 00:14:11,640 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1189 transitions. Word has length 66 [2022-11-26 00:14:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:11,640 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1189 transitions. [2022-11-26 00:14:11,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-26 00:14:11,641 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1189 transitions. [2022-11-26 00:14:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-26 00:14:11,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:11,644 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:11,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:14:11,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:11,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1679769687, now seen corresponding path program 1 times [2022-11-26 00:14:11,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:11,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235900960] [2022-11-26 00:14:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:11,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:12,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:12,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235900960] [2022-11-26 00:14:12,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235900960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:12,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:12,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:12,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145690457] [2022-11-26 00:14:12,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:12,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:12,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:12,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:12,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:12,549 INFO L87 Difference]: Start difference. First operand 896 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:14:15,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:16,568 INFO L93 Difference]: Finished difference Result 896 states and 1189 transitions. [2022-11-26 00:14:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:16,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-26 00:14:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:16,576 INFO L225 Difference]: With dead ends: 896 [2022-11-26 00:14:16,576 INFO L226 Difference]: Without dead ends: 894 [2022-11-26 00:14:16,577 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 00:14:16,578 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 1161 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:16,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 2032 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-26 00:14:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-11-26 00:14:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2022-11-26 00:14:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 494 states have (on average 1.2044534412955465) internal successors, (595), 526 states have internal predecessors, (595), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2022-11-26 00:14:16,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1187 transitions. [2022-11-26 00:14:16,703 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1187 transitions. Word has length 71 [2022-11-26 00:14:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:16,704 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1187 transitions. [2022-11-26 00:14:16,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:14:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1187 transitions. [2022-11-26 00:14:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-26 00:14:16,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:16,707 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:16,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:14:16,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash -693463549, now seen corresponding path program 1 times [2022-11-26 00:14:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:16,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710261086] [2022-11-26 00:14:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:16,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:17,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:17,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710261086] [2022-11-26 00:14:17,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710261086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:17,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:17,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:17,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847874300] [2022-11-26 00:14:17,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:17,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:17,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:17,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:17,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:17,525 INFO L87 Difference]: Start difference. First operand 894 states and 1187 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:14:21,084 WARN L539 Checker$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 00:14:22,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:22,036 INFO L93 Difference]: Finished difference Result 1034 states and 1350 transitions. [2022-11-26 00:14:22,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:22,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-26 00:14:22,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:22,044 INFO L225 Difference]: With dead ends: 1034 [2022-11-26 00:14:22,044 INFO L226 Difference]: Without dead ends: 1032 [2022-11-26 00:14:22,045 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 00:14:22,046 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 1144 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:22,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 2268 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:14:22,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2022-11-26 00:14:22,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1023. [2022-11-26 00:14:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 571 states have (on average 1.203152364273205) internal successors, (687), 603 states have internal predecessors, (687), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1341 transitions. [2022-11-26 00:14:22,157 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1341 transitions. Word has length 76 [2022-11-26 00:14:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:22,158 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1341 transitions. [2022-11-26 00:14:22,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:14:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1341 transitions. [2022-11-26 00:14:22,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:14:22,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:22,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:14:22,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1890696500, now seen corresponding path program 1 times [2022-11-26 00:14:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:22,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438782125] [2022-11-26 00:14:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:22,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:22,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438782125] [2022-11-26 00:14:22,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438782125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:22,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:22,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:22,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091294454] [2022-11-26 00:14:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:22,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:22,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:22,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:22,998 INFO L87 Difference]: Start difference. First operand 1023 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:14:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:26,298 INFO L93 Difference]: Finished difference Result 1023 states and 1341 transitions. [2022-11-26 00:14:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:26,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2022-11-26 00:14:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:26,306 INFO L225 Difference]: With dead ends: 1023 [2022-11-26 00:14:26,306 INFO L226 Difference]: Without dead ends: 1021 [2022-11-26 00:14:26,307 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 00:14:26,308 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 1155 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:26,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 2024 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-26 00:14:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2022-11-26 00:14:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2022-11-26 00:14:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 570 states have (on average 1.2017543859649122) internal successors, (685), 601 states have internal predecessors, (685), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1339 transitions. [2022-11-26 00:14:26,423 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1339 transitions. Word has length 81 [2022-11-26 00:14:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:26,424 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1339 transitions. [2022-11-26 00:14:26,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:14:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1339 transitions. [2022-11-26 00:14:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:14:26,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:26,427 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:14:26,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:26,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash 747926893, now seen corresponding path program 1 times [2022-11-26 00:14:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:26,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624416399] [2022-11-26 00:14:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:26,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:27,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:27,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624416399] [2022-11-26 00:14:27,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624416399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:27,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:27,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222500542] [2022-11-26 00:14:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:27,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:27,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:27,346 INFO L87 Difference]: Start difference. First operand 1021 states and 1339 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:14:31,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:32,358 INFO L93 Difference]: Finished difference Result 1021 states and 1339 transitions. [2022-11-26 00:14:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-11-26 00:14:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:32,366 INFO L225 Difference]: With dead ends: 1021 [2022-11-26 00:14:32,366 INFO L226 Difference]: Without dead ends: 1019 [2022-11-26 00:14:32,367 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 00:14:32,368 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 1156 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:32,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 2016 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:14:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2022-11-26 00:14:32,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2022-11-26 00:14:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 569 states have (on average 1.2003514938488578) internal successors, (683), 599 states have internal predecessors, (683), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1337 transitions. [2022-11-26 00:14:32,486 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1337 transitions. Word has length 86 [2022-11-26 00:14:32,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:32,487 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1337 transitions. [2022-11-26 00:14:32,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:14:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1337 transitions. [2022-11-26 00:14:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-26 00:14:32,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:32,489 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:32,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:14:32,490 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:32,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1498338416, now seen corresponding path program 1 times [2022-11-26 00:14:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:32,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487131022] [2022-11-26 00:14:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:32,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:33,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:33,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487131022] [2022-11-26 00:14:33,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487131022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:33,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:33,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:33,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722302818] [2022-11-26 00:14:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:33,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:33,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:33,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:33,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:33,339 INFO L87 Difference]: Start difference. First operand 1019 states and 1337 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:14:36,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:37,423 INFO L93 Difference]: Finished difference Result 1019 states and 1337 transitions. [2022-11-26 00:14:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:37,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-11-26 00:14:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:37,430 INFO L225 Difference]: With dead ends: 1019 [2022-11-26 00:14:37,431 INFO L226 Difference]: Without dead ends: 1017 [2022-11-26 00:14:37,432 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 00:14:37,433 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 1148 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:37,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 2016 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-26 00:14:37,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2022-11-26 00:14:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1017. [2022-11-26 00:14:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 568 states have (on average 1.198943661971831) internal successors, (681), 597 states have internal predecessors, (681), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1335 transitions. [2022-11-26 00:14:37,557 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1335 transitions. Word has length 88 [2022-11-26 00:14:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:37,557 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1335 transitions. [2022-11-26 00:14:37,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:14:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1335 transitions. [2022-11-26 00:14:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-26 00:14:37,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:37,560 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:37,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:14:37,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1284970083, now seen corresponding path program 1 times [2022-11-26 00:14:37,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:37,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671358983] [2022-11-26 00:14:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:37,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:38,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:38,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671358983] [2022-11-26 00:14:38,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671358983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:38,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:38,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:38,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130961241] [2022-11-26 00:14:38,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:38,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:38,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:38,430 INFO L87 Difference]: Start difference. First operand 1017 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:14:41,854 WARN L539 Checker$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 00:14:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:42,755 INFO L93 Difference]: Finished difference Result 1026 states and 1342 transitions. [2022-11-26 00:14:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:42,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-26 00:14:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:42,762 INFO L225 Difference]: With dead ends: 1026 [2022-11-26 00:14:42,762 INFO L226 Difference]: Without dead ends: 1024 [2022-11-26 00:14:42,763 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 00:14:42,764 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 1133 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:42,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 2252 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-26 00:14:42,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-26 00:14:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1015. [2022-11-26 00:14:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 567 states have (on average 1.1975308641975309) internal successors, (679), 595 states have internal predecessors, (679), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:42,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1333 transitions. [2022-11-26 00:14:42,893 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1333 transitions. Word has length 93 [2022-11-26 00:14:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:42,894 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1333 transitions. [2022-11-26 00:14:42,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:14:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1333 transitions. [2022-11-26 00:14:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-26 00:14:42,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:42,897 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:14:42,898 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1021675040, now seen corresponding path program 1 times [2022-11-26 00:14:42,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:42,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519518618] [2022-11-26 00:14:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:43,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:43,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519518618] [2022-11-26 00:14:43,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519518618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:43,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:43,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182008095] [2022-11-26 00:14:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:43,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:43,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:43,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:43,711 INFO L87 Difference]: Start difference. First operand 1015 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:14:47,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:14:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:48,143 INFO L93 Difference]: Finished difference Result 1024 states and 1340 transitions. [2022-11-26 00:14:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-11-26 00:14:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:48,151 INFO L225 Difference]: With dead ends: 1024 [2022-11-26 00:14:48,152 INFO L226 Difference]: Without dead ends: 1022 [2022-11-26 00:14:48,153 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 00:14:48,153 INFO L413 NwaCegarLoop]: 1053 mSDtfsCounter, 1130 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:48,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 2248 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:14:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-26 00:14:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1013. [2022-11-26 00:14:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 566 states have (on average 1.196113074204947) internal successors, (677), 593 states have internal predecessors, (677), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1331 transitions. [2022-11-26 00:14:48,292 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1331 transitions. Word has length 98 [2022-11-26 00:14:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:48,293 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1331 transitions. [2022-11-26 00:14:48,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:14:48,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1331 transitions. [2022-11-26 00:14:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-26 00:14:48,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:48,296 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:48,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:14:48,296 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:48,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:48,297 INFO L85 PathProgramCache]: Analyzing trace with hash -382069518, now seen corresponding path program 1 times [2022-11-26 00:14:48,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166034684] [2022-11-26 00:14:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:48,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:49,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:49,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166034684] [2022-11-26 00:14:49,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166034684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:49,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:49,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:49,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364192089] [2022-11-26 00:14:49,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:49,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:49,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:49,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:49,064 INFO L87 Difference]: Start difference. First operand 1013 states and 1331 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:14:52,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:52,741 INFO L93 Difference]: Finished difference Result 1013 states and 1331 transitions. [2022-11-26 00:14:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-11-26 00:14:52,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:52,748 INFO L225 Difference]: With dead ends: 1013 [2022-11-26 00:14:52,748 INFO L226 Difference]: Without dead ends: 1011 [2022-11-26 00:14:52,749 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 00:14:52,750 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 1141 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:52,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2004 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:14:52,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2022-11-26 00:14:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2022-11-26 00:14:52,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 565 states have (on average 1.1946902654867257) internal successors, (675), 591 states have internal predecessors, (675), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1329 transitions. [2022-11-26 00:14:52,933 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1329 transitions. Word has length 103 [2022-11-26 00:14:52,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:52,934 INFO L495 AbstractCegarLoop]: Abstraction has 1011 states and 1329 transitions. [2022-11-26 00:14:52,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:14:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1329 transitions. [2022-11-26 00:14:52,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-26 00:14:52,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:52,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:52,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:14:52,937 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:52,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash -21085507, now seen corresponding path program 1 times [2022-11-26 00:14:52,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:52,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467207702] [2022-11-26 00:14:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:52,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:53,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:53,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467207702] [2022-11-26 00:14:53,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467207702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:53,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:53,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:53,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057590292] [2022-11-26 00:14:53,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:53,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:53,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:53,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:53,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:53,692 INFO L87 Difference]: Start difference. First operand 1011 states and 1329 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:14:57,054 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 [] [2022-11-26 00:14:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:58,599 INFO L93 Difference]: Finished difference Result 1011 states and 1329 transitions. [2022-11-26 00:14:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-11-26 00:14:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:58,605 INFO L225 Difference]: With dead ends: 1011 [2022-11-26 00:14:58,605 INFO L226 Difference]: Without dead ends: 1009 [2022-11-26 00:14:58,606 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 00:14:58,607 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 1138 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:58,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 2000 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:14:58,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2022-11-26 00:14:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2022-11-26 00:14:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 564 states have (on average 1.1932624113475176) internal successors, (673), 589 states have internal predecessors, (673), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:14:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2022-11-26 00:14:58,757 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 108 [2022-11-26 00:14:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:58,757 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2022-11-26 00:14:58,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:14:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2022-11-26 00:14:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-26 00:14:58,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:58,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:58,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:14:58,761 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:14:58,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:58,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1507401522, now seen corresponding path program 1 times [2022-11-26 00:14:58,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:58,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76409128] [2022-11-26 00:14:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:14:59,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:59,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76409128] [2022-11-26 00:14:59,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76409128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:59,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:59,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:59,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770864370] [2022-11-26 00:14:59,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:59,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:59,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:59,520 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:15:02,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:15:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:03,918 INFO L93 Difference]: Finished difference Result 1009 states and 1327 transitions. [2022-11-26 00:15:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-11-26 00:15:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:03,924 INFO L225 Difference]: With dead ends: 1009 [2022-11-26 00:15:03,925 INFO L226 Difference]: Without dead ends: 1007 [2022-11-26 00:15:03,926 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 00:15:03,926 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 1135 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:03,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1996 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:15:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2022-11-26 00:15:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1007. [2022-11-26 00:15:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 563 states have (on average 1.191829484902309) internal successors, (671), 587 states have internal predecessors, (671), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:15:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1325 transitions. [2022-11-26 00:15:04,087 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1325 transitions. Word has length 113 [2022-11-26 00:15:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:04,088 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1325 transitions. [2022-11-26 00:15:04,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:15:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1325 transitions. [2022-11-26 00:15:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-26 00:15:04,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:04,091 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:04,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:15:04,091 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash -297088808, now seen corresponding path program 1 times [2022-11-26 00:15:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:04,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601278622] [2022-11-26 00:15:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:04,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:04,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601278622] [2022-11-26 00:15:04,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601278622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:04,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:04,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954161655] [2022-11-26 00:15:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:04,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:04,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:04,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:04,915 INFO L87 Difference]: Start difference. First operand 1007 states and 1325 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:15:07,817 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 00:15:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:08,948 INFO L93 Difference]: Finished difference Result 1007 states and 1325 transitions. [2022-11-26 00:15:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:08,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-11-26 00:15:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:08,955 INFO L225 Difference]: With dead ends: 1007 [2022-11-26 00:15:08,955 INFO L226 Difference]: Without dead ends: 1005 [2022-11-26 00:15:08,957 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 00:15:08,957 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 1132 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:08,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1992 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 00:15:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-11-26 00:15:09,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2022-11-26 00:15:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 562 states have (on average 1.190391459074733) internal successors, (669), 585 states have internal predecessors, (669), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2022-11-26 00:15:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1323 transitions. [2022-11-26 00:15:09,131 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1323 transitions. Word has length 118 [2022-11-26 00:15:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:09,131 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1323 transitions. [2022-11-26 00:15:09,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:15:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1323 transitions. [2022-11-26 00:15:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-26 00:15:09,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:09,135 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:09,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:15:09,135 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:09,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1129357687, now seen corresponding path program 1 times [2022-11-26 00:15:09,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:09,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484136661] [2022-11-26 00:15:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:15:10,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:10,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484136661] [2022-11-26 00:15:10,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484136661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:10,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:10,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:15:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905023802] [2022-11-26 00:15:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:10,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:10,059 INFO L87 Difference]: Start difference. First operand 1005 states and 1323 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:15:12,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:15:14,740 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 00:15:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:15,182 INFO L93 Difference]: Finished difference Result 1963 states and 2462 transitions. [2022-11-26 00:15:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2022-11-26 00:15:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:15,193 INFO L225 Difference]: With dead ends: 1963 [2022-11-26 00:15:15,193 INFO L226 Difference]: Without dead ends: 1371 [2022-11-26 00:15:15,196 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 00:15:15,197 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 985 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:15,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1434 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:15:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-26 00:15:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1353. [2022-11-26 00:15:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 767 states have (on average 1.1890482398956974) internal successors, (912), 790 states have internal predecessors, (912), 413 states have call successors, (413), 160 states have call predecessors, (413), 159 states have return successors, (411), 409 states have call predecessors, (411), 411 states have call successors, (411) [2022-11-26 00:15:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1736 transitions. [2022-11-26 00:15:15,495 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1736 transitions. Word has length 148 [2022-11-26 00:15:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:15,496 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1736 transitions. [2022-11-26 00:15:15,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:15:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1736 transitions. [2022-11-26 00:15:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-26 00:15:15,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:15,501 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:15,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:15:15,502 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash -696663874, now seen corresponding path program 1 times [2022-11-26 00:15:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:15,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328179346] [2022-11-26 00:15:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:15,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:17,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:17,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328179346] [2022-11-26 00:15:17,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328179346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:17,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:17,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:17,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279874387] [2022-11-26 00:15:17,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:17,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:17,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:17,158 INFO L87 Difference]: Start difference. First operand 1353 states and 1736 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:15:21,012 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 [] [2022-11-26 00:15:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:22,099 INFO L93 Difference]: Finished difference Result 1369 states and 1749 transitions. [2022-11-26 00:15:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:22,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-11-26 00:15:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:22,106 INFO L225 Difference]: With dead ends: 1369 [2022-11-26 00:15:22,106 INFO L226 Difference]: Without dead ends: 1367 [2022-11-26 00:15:22,107 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 00:15:22,108 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 1115 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:22,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 2228 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:15:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-11-26 00:15:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1351. [2022-11-26 00:15:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 766 states have (on average 1.1879895561357703) internal successors, (910), 788 states have internal predecessors, (910), 413 states have call successors, (413), 160 states have call predecessors, (413), 159 states have return successors, (411), 409 states have call predecessors, (411), 411 states have call successors, (411) [2022-11-26 00:15:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1734 transitions. [2022-11-26 00:15:22,351 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1734 transitions. Word has length 123 [2022-11-26 00:15:22,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:22,352 INFO L495 AbstractCegarLoop]: Abstraction has 1351 states and 1734 transitions. [2022-11-26 00:15:22,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:15:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1734 transitions. [2022-11-26 00:15:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-26 00:15:22,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:22,356 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:22,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:15:22,356 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash 102882447, now seen corresponding path program 1 times [2022-11-26 00:15:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:22,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73154519] [2022-11-26 00:15:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:22,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-26 00:15:23,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:23,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73154519] [2022-11-26 00:15:23,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73154519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:15:23,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871588] [2022-11-26 00:15:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:23,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:15:23,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:15:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:25,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 5374 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:15:25,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-11-26 00:15:25,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:25,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:25,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:15:25,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-26 00:15:25,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247023242] [2022-11-26 00:15:25,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:25,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:25,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:25,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:15:25,692 INFO L87 Difference]: Start difference. First operand 1351 states and 1734 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:15:28,585 WARN L539 Checker$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 00:15:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:29,218 INFO L93 Difference]: Finished difference Result 1968 states and 2465 transitions. [2022-11-26 00:15:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-11-26 00:15:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:29,229 INFO L225 Difference]: With dead ends: 1968 [2022-11-26 00:15:29,229 INFO L226 Difference]: Without dead ends: 1385 [2022-11-26 00:15:29,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 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 00:15:29,233 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 1072 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:29,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1242 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-26 00:15:29,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2022-11-26 00:15:29,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1367. [2022-11-26 00:15:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 773 states have (on average 1.183699870633894) internal successors, (915), 795 states have internal predecessors, (915), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-11-26 00:15:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1747 transitions. [2022-11-26 00:15:29,486 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1747 transitions. Word has length 153 [2022-11-26 00:15:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:29,486 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1747 transitions. [2022-11-26 00:15:29,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:15:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1747 transitions. [2022-11-26 00:15:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-26 00:15:29,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:29,489 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:29,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:29,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-26 00:15:29,704 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash 276202060, now seen corresponding path program 1 times [2022-11-26 00:15:29,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:29,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875496456] [2022-11-26 00:15:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:29,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:30,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:30,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875496456] [2022-11-26 00:15:30,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875496456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:30,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:30,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:30,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213096944] [2022-11-26 00:15:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:30,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:30,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:30,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:30,594 INFO L87 Difference]: Start difference. First operand 1367 states and 1747 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:15:34,119 WARN L539 Checker$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 00:15:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:35,147 INFO L93 Difference]: Finished difference Result 1383 states and 1760 transitions. [2022-11-26 00:15:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:35,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-11-26 00:15:35,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:35,154 INFO L225 Difference]: With dead ends: 1383 [2022-11-26 00:15:35,155 INFO L226 Difference]: Without dead ends: 1381 [2022-11-26 00:15:35,155 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 00:15:35,156 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 1107 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:35,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2214 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:15:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-11-26 00:15:35,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1365. [2022-11-26 00:15:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 772 states have (on average 1.182642487046632) internal successors, (913), 793 states have internal predecessors, (913), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-11-26 00:15:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1745 transitions. [2022-11-26 00:15:35,480 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1745 transitions. Word has length 128 [2022-11-26 00:15:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:35,480 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 1745 transitions. [2022-11-26 00:15:35,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:15:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1745 transitions. [2022-11-26 00:15:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-26 00:15:35,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:35,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:35,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:15:35,484 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:35,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2082284968, now seen corresponding path program 1 times [2022-11-26 00:15:35,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:35,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964675298] [2022-11-26 00:15:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:35,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:36,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:36,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964675298] [2022-11-26 00:15:36,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964675298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:36,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:36,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:36,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020809244] [2022-11-26 00:15:36,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:36,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:36,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:36,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:36,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:36,229 INFO L87 Difference]: Start difference. First operand 1365 states and 1745 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:15:40,359 WARN L539 Checker$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 00:15:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:41,048 INFO L93 Difference]: Finished difference Result 1381 states and 1758 transitions. [2022-11-26 00:15:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-11-26 00:15:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:41,056 INFO L225 Difference]: With dead ends: 1381 [2022-11-26 00:15:41,056 INFO L226 Difference]: Without dead ends: 1379 [2022-11-26 00:15:41,057 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 00:15:41,058 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 1104 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:41,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2210 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:15:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-11-26 00:15:41,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1363. [2022-11-26 00:15:41,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 771 states have (on average 1.1815823605706874) internal successors, (911), 791 states have internal predecessors, (911), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-11-26 00:15:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1743 transitions. [2022-11-26 00:15:41,291 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1743 transitions. Word has length 133 [2022-11-26 00:15:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:41,292 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 1743 transitions. [2022-11-26 00:15:41,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:15:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1743 transitions. [2022-11-26 00:15:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-26 00:15:41,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:41,295 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:41,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:15:41,295 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1410992220, now seen corresponding path program 1 times [2022-11-26 00:15:41,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:41,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787834627] [2022-11-26 00:15:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:41,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:41,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:41,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787834627] [2022-11-26 00:15:41,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787834627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:41,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:41,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:41,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957345748] [2022-11-26 00:15:41,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:41,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:41,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:41,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:41,944 INFO L87 Difference]: Start difference. First operand 1363 states and 1743 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:15:44,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:15:47,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:15:47,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:47,425 INFO L93 Difference]: Finished difference Result 1973 states and 2484 transitions. [2022-11-26 00:15:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:15:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-11-26 00:15:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:47,438 INFO L225 Difference]: With dead ends: 1973 [2022-11-26 00:15:47,438 INFO L226 Difference]: Without dead ends: 1971 [2022-11-26 00:15:47,439 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 00:15:47,441 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 899 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:47,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 3068 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:15:47,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-11-26 00:15:47,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1942. [2022-11-26 00:15:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1094 states have (on average 1.1709323583180986) internal successors, (1281), 1119 states have internal predecessors, (1281), 588 states have call successors, (588), 252 states have call predecessors, (588), 250 states have return successors, (589), 579 states have call predecessors, (589), 586 states have call successors, (589) [2022-11-26 00:15:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2458 transitions. [2022-11-26 00:15:47,762 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2458 transitions. Word has length 138 [2022-11-26 00:15:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:47,763 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2458 transitions. [2022-11-26 00:15:47,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:15:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2458 transitions. [2022-11-26 00:15:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-26 00:15:47,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:47,766 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:47,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:15:47,766 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:47,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:47,766 INFO L85 PathProgramCache]: Analyzing trace with hash -200486010, now seen corresponding path program 1 times [2022-11-26 00:15:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:47,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781666275] [2022-11-26 00:15:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:47,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:15:48,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:48,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781666275] [2022-11-26 00:15:48,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781666275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:48,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:48,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:48,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523376813] [2022-11-26 00:15:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:48,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:48,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:48,380 INFO L87 Difference]: Start difference. First operand 1942 states and 2458 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:15:51,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:15:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:52,763 INFO L93 Difference]: Finished difference Result 1942 states and 2458 transitions. [2022-11-26 00:15:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-11-26 00:15:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:52,774 INFO L225 Difference]: With dead ends: 1942 [2022-11-26 00:15:52,774 INFO L226 Difference]: Without dead ends: 1940 [2022-11-26 00:15:52,776 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 00:15:52,776 INFO L413 NwaCegarLoop]: 983 mSDtfsCounter, 1114 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:52,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 1966 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-26 00:15:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-11-26 00:15:53,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1940. [2022-11-26 00:15:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1093 states have (on average 1.170173833485819) internal successors, (1279), 1117 states have internal predecessors, (1279), 588 states have call successors, (588), 252 states have call predecessors, (588), 250 states have return successors, (589), 579 states have call predecessors, (589), 586 states have call successors, (589) [2022-11-26 00:15:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2456 transitions. [2022-11-26 00:15:53,138 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2456 transitions. Word has length 143 [2022-11-26 00:15:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:53,138 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 2456 transitions. [2022-11-26 00:15:53,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:15:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2456 transitions. [2022-11-26 00:15:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-26 00:15:53,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:53,142 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:53,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:15:53,142 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:15:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 919349614, now seen corresponding path program 1 times [2022-11-26 00:15:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:53,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44629660] [2022-11-26 00:15:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:53,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-26 00:15:54,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:54,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44629660] [2022-11-26 00:15:54,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44629660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:54,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:54,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:54,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656422544] [2022-11-26 00:15:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:54,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:54,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:54,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:54,780 INFO L87 Difference]: Start difference. First operand 1940 states and 2456 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:15:58,667 WARN L539 Checker$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 00:16:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:00,110 INFO L93 Difference]: Finished difference Result 3993 states and 5134 transitions. [2022-11-26 00:16:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:16:00,117 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 177 [2022-11-26 00:16:00,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:00,129 INFO L225 Difference]: With dead ends: 3993 [2022-11-26 00:16:00,129 INFO L226 Difference]: Without dead ends: 2118 [2022-11-26 00:16:00,136 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 00:16:00,137 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 103 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 140 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:00,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 3178 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:16:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2022-11-26 00:16:00,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1942. [2022-11-26 00:16:00,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1095 states have (on average 1.16986301369863) internal successors, (1281), 1119 states have internal predecessors, (1281), 588 states have call successors, (588), 252 states have call predecessors, (588), 250 states have return successors, (589), 579 states have call predecessors, (589), 586 states have call successors, (589) [2022-11-26 00:16:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2458 transitions. [2022-11-26 00:16:00,547 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2458 transitions. Word has length 177 [2022-11-26 00:16:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:00,547 INFO L495 AbstractCegarLoop]: Abstraction has 1942 states and 2458 transitions. [2022-11-26 00:16:00,548 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:16:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2458 transitions. [2022-11-26 00:16:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-26 00:16:00,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:00,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:00,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:16:00,551 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:16:00,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:00,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2096046593, now seen corresponding path program 1 times [2022-11-26 00:16:00,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:16:00,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316025812] [2022-11-26 00:16:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:00,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:16:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:16:01,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:16:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316025812] [2022-11-26 00:16:01,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316025812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:01,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:01,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:16:01,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137415686] [2022-11-26 00:16:01,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:01,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:16:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:16:01,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:16:01,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:16:01,208 INFO L87 Difference]: Start difference. First operand 1942 states and 2458 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-26 00:16:04,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:16:06,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:16:08,313 WARN L539 Checker$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 00:16:08,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:08,962 INFO L93 Difference]: Finished difference Result 2778 states and 3503 transitions. [2022-11-26 00:16:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:16:08,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-11-26 00:16:08,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:08,977 INFO L225 Difference]: With dead ends: 2778 [2022-11-26 00:16:08,977 INFO L226 Difference]: Without dead ends: 2616 [2022-11-26 00:16:08,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:16:08,982 INFO L413 NwaCegarLoop]: 1182 mSDtfsCounter, 792 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 3278 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-26 00:16:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-11-26 00:16:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2598. [2022-11-26 00:16:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 1458 states have (on average 1.162551440329218) internal successors, (1695), 1485 states have internal predecessors, (1695), 785 states have call successors, (785), 351 states have call predecessors, (785), 346 states have return successors, (805), 771 states have call predecessors, (805), 781 states have call successors, (805) [2022-11-26 00:16:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3285 transitions. [2022-11-26 00:16:09,381 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3285 transitions. Word has length 148 [2022-11-26 00:16:09,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:09,382 INFO L495 AbstractCegarLoop]: Abstraction has 2598 states and 3285 transitions. [2022-11-26 00:16:09,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-26 00:16:09,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3285 transitions. [2022-11-26 00:16:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-26 00:16:09,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:09,384 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:09,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:16:09,385 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:16:09,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:09,385 INFO L85 PathProgramCache]: Analyzing trace with hash 194288781, now seen corresponding path program 1 times [2022-11-26 00:16:09,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:16:09,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637378653] [2022-11-26 00:16:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:09,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:16:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-11-26 00:16:10,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:16:10,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637378653] [2022-11-26 00:16:10,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637378653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:10,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:10,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:16:10,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256887059] [2022-11-26 00:16:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:10,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:16:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:16:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:16:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:16:10,333 INFO L87 Difference]: Start difference. First operand 2598 states and 3285 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:16:14,166 WARN L539 Checker$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 00:16:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:15,586 INFO L93 Difference]: Finished difference Result 5124 states and 6475 transitions. [2022-11-26 00:16:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:16:15,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 194 [2022-11-26 00:16:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:15,600 INFO L225 Difference]: With dead ends: 5124 [2022-11-26 00:16:15,600 INFO L226 Difference]: Without dead ends: 2601 [2022-11-26 00:16:15,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:16:15,611 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 1 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:15,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2940 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:16:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2022-11-26 00:16:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2600. [2022-11-26 00:16:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 1460 states have (on average 1.1623287671232876) internal successors, (1697), 1487 states have internal predecessors, (1697), 785 states have call successors, (785), 351 states have call predecessors, (785), 346 states have return successors, (805), 771 states have call predecessors, (805), 781 states have call successors, (805) [2022-11-26 00:16:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3287 transitions. [2022-11-26 00:16:16,139 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3287 transitions. Word has length 194 [2022-11-26 00:16:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:16,140 INFO L495 AbstractCegarLoop]: Abstraction has 2600 states and 3287 transitions. [2022-11-26 00:16:16,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:16:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3287 transitions. [2022-11-26 00:16:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-26 00:16:16,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:16,143 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-26 00:16:16,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:16:16,143 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-26 00:16:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:16,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1603907917, now seen corresponding path program 1 times [2022-11-26 00:16:16,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:16:16,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798091238] [2022-11-26 00:16:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:16,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:16:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-11-26 00:16:17,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:16:17,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798091238] [2022-11-26 00:16:17,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798091238] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:16:17,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151410317] [2022-11-26 00:16:17,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:17,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:16:17,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:16:17,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:16:17,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f965a61c-f529-4034-aedc-66e976fbc892/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:16:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:19,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 5823 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:16:19,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:19,621 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-26 00:16:19,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:16:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-11-26 00:16:19,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151410317] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:16:19,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683985052] [2022-11-26 00:16:19,909 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2022-11-26 00:16:19,909 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:16:19,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:16:19,921 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:16:19,922 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:16:30,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:31,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:31,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:33,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:33,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:34,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:35,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:36,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:37,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:38,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:39,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:39,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:16:40,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-26 00:20:57,384 WARN L233 SmtUtils]: Spent 12.39s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-26 00:21:03,743 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-26 00:21:19,266 WARN L233 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-26 00:21:25,545 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-26 00:21:44,162 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 5415 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:25:52,497 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 5310 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:26:43,296 WARN L233 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 5308 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)