./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--ppp--ppp_generic.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/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_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/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_a5f4cef6-ced8-43d4-bad7-7d867059d158/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 e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:57:27,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:27,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:27,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:27,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:27,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:27,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:27,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:27,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:27,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:27,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:27,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:27,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:27,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:27,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:27,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:27,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:27,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:27,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:27,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:27,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:27,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:27,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:27,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:27,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:27,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:27,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:27,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:27,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:27,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:27,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:27,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:27,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:27,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:27,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:27,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:27,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:27,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:27,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:27,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:27,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:27,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:57:27,972 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:27,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:27,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:27,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:27,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:27,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:27,977 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:27,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:27,977 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:27,978 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:57:27,979 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:27,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:27,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:57:27,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:57:27,980 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:27,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:57:27,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:57:27,981 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:57:27,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:27,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:57:27,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:27,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:27,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:27,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:27,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:27,984 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:27,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:27,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:27,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:27,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:27,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:27,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:57:27,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:27,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:27,987 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:57:27,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:57:27,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:27,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:27,988 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_a5f4cef6-ced8-43d4-bad7-7d867059d158/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb [2022-11-25 23:57:28,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:28,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:28,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:28,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:28,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:28,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-11-25 23:57:31,898 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:32,769 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:32,769 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-11-25 23:57:32,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/data/bbaf168ec/4f75d9beddd24c4b889dcf86fc107606/FLAGfda74d4af [2022-11-25 23:57:32,878 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/data/bbaf168ec/4f75d9beddd24c4b889dcf86fc107606 [2022-11-25 23:57:32,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:32,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:32,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:32,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:32,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:32,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:32" (1/1) ... [2022-11-25 23:57:32,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604e3d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:32, skipping insertion in model container [2022-11-25 23:57:32,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:32" (1/1) ... [2022-11-25 23:57:32,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:33,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:34,786 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:57:34,793 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:57:34,808 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:57:34,828 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:57:35,108 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:57:35,121 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 23:57:35,153 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:57:35,167 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 23:57:35,369 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-25 23:57:35,389 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-25 23:57:35,495 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:35,497 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:57:35,502 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:57:35,503 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:57:35,512 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:35,515 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:35,516 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:35,517 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:57:35,592 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:57:35,632 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:35,715 WARN L623 FunctionHandler]: Unknown extern function __pskb_pull_tail [2022-11-25 23:57:35,869 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 23:57:35,875 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:35,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,125 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:57:36,125 WARN L623 FunctionHandler]: Unknown extern function rcu_read_lock_held [2022-11-25 23:57:36,126 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 23:57:36,348 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:57:36,374 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 23:57:36,383 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:57:36,384 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:36,389 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:57:36,397 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:57:36,402 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 23:57:36,404 WARN L623 FunctionHandler]: Unknown extern function iov_iter_init [2022-11-25 23:57:36,405 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_iter [2022-11-25 23:57:36,406 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,416 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,423 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,424 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,452 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:57:36,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,482 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,483 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-11-25 23:57:36,485 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-11-25 23:57:36,486 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,489 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,490 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,499 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,501 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,502 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,503 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,506 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,510 WARN L623 FunctionHandler]: Unknown extern function slhc_init [2022-11-25 23:57:36,512 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,516 WARN L623 FunctionHandler]: Unknown extern function slhc_free [2022-11-25 23:57:36,520 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_create [2022-11-25 23:57:36,521 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:36,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:36,523 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_create [2022-11-25 23:57:36,524 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:36,524 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:36,525 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,529 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,530 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,532 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,533 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:36,543 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:57:36,544 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:36,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,558 WARN L623 FunctionHandler]: Unknown extern function register_pernet_device [2022-11-25 23:57:36,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,563 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-25 23:57:36,564 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_device [2022-11-25 23:57:36,573 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:36,575 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,576 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,612 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:36,621 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:36,622 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,624 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,624 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,625 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:36,625 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,625 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:36,626 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,626 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,627 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,628 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:36,629 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,630 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,632 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:36,634 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,635 WARN L623 FunctionHandler]: Unknown extern function slhc_compress [2022-11-25 23:57:36,636 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,637 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,637 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,639 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:36,639 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,640 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,641 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,641 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,643 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,646 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,647 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,662 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,670 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,671 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,678 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,682 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:36,685 WARN L623 FunctionHandler]: Unknown extern function skb_queue_head [2022-11-25 23:57:36,686 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,694 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,696 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,697 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,699 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,700 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,700 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:36,701 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,711 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,712 WARN L623 FunctionHandler]: Unknown extern function slhc_toss [2022-11-25 23:57:36,716 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,717 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,717 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-11-25 23:57:36,718 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,719 WARN L623 FunctionHandler]: Unknown extern function slhc_uncompress [2022-11-25 23:57:36,721 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,722 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,724 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 23:57:36,726 WARN L623 FunctionHandler]: Unknown extern function slhc_remember [2022-11-25 23:57:36,727 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,730 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:36,731 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,731 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:36,732 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,733 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:36,734 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,735 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,737 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,738 WARN L623 FunctionHandler]: Unknown extern function skb_pull_rcsum [2022-11-25 23:57:36,745 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:57:36,746 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,749 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,751 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,751 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:36,752 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:36,752 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:36,757 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:36,758 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:36,759 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,762 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,763 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,766 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,807 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,809 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,811 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,812 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,813 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,815 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,816 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,817 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:36,822 WARN L623 FunctionHandler]: Unknown extern function __init_rwsem [2022-11-25 23:57:36,823 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:36,823 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-11-25 23:57:36,827 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-11-25 23:57:36,828 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-11-25 23:57:36,828 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:36,829 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,833 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-11-25 23:57:36,855 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:36,855 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:36,861 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:36,862 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:36,863 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:57:36,865 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,866 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:57:36,868 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,869 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:36,870 WARN L623 FunctionHandler]: Unknown extern function slhc_free [2022-11-25 23:57:36,870 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,871 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,871 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,872 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:36,872 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:36,873 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:36,880 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:36,882 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:36,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,886 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,886 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:36,887 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:36,894 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:36,896 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-25 23:57:36,897 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_device [2022-11-25 23:57:37,134 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-25 23:57:37,156 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:37,169 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-11-25 23:57:37,170 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:57:37,171 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:37,172 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:57:37,172 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:37,763 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:38,080 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:57:39,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-11-25 23:57:39,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-11-25 23:57:39,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-11-25 23:57:39,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-11-25 23:57:39,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-11-25 23:57:39,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-11-25 23:57:39,274 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-11-25 23:57:39,274 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-11-25 23:57:39,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-11-25 23:57:39,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-11-25 23:57:39,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-11-25 23:57:39,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-11-25 23:57:39,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-11-25 23:57:39,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-11-25 23:57:39,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-11-25 23:57:39,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-11-25 23:57:39,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-11-25 23:57:39,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-11-25 23:57:39,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-11-25 23:57:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-11-25 23:57:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-11-25 23:57:39,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-11-25 23:57:39,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-11-25 23:57:39,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-11-25 23:57:39,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-11-25 23:57:39,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-11-25 23:57:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-11-25 23:57:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-11-25 23:57:39,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-11-25 23:57:39,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-11-25 23:57:39,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-11-25 23:57:39,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-11-25 23:57:39,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-11-25 23:57:39,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-11-25 23:57:39,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-11-25 23:57:39,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-11-25 23:57:39,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-11-25 23:57:39,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-11-25 23:57:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-11-25 23:57:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-11-25 23:57:39,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-11-25 23:57:39,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-11-25 23:57:39,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-11-25 23:57:39,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-11-25 23:57:39,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-11-25 23:57:39,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-11-25 23:57:39,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-11-25 23:57:39,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-11-25 23:57:39,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-11-25 23:57:39,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-11-25 23:57:39,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-11-25 23:57:39,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-11-25 23:57:39,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-11-25 23:57:39,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-11-25 23:57:39,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-11-25 23:57:39,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-11-25 23:57:39,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-11-25 23:57:39,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-11-25 23:57:39,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-11-25 23:57:39,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-11-25 23:57:39,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-11-25 23:57:39,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-11-25 23:57:39,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-11-25 23:57:39,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-11-25 23:57:39,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-11-25 23:57:39,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-11-25 23:57:39,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-11-25 23:57:39,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-11-25 23:57:39,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-11-25 23:57:39,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-11-25 23:57:39,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-11-25 23:57:39,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-11-25 23:57:39,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-11-25 23:57:39,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-11-25 23:57:39,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-11-25 23:57:39,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-11-25 23:57:39,335 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-11-25 23:57:39,335 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-11-25 23:57:39,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-11-25 23:57:39,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-11-25 23:57:39,343 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-11-25 23:57:39,344 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-11-25 23:57:39,344 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-11-25 23:57:39,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-11-25 23:57:39,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-11-25 23:57:39,346 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-11-25 23:57:39,346 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-11-25 23:57:39,346 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-11-25 23:57:39,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:39,488 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:57:39,666 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:57:39,667 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:57:39,668 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:57:39,669 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:57:39,673 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:57:39,674 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 23:57:39,676 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:57:39,676 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 23:57:39,678 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-25 23:57:39,679 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-25 23:57:39,686 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,687 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:57:39,687 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:57:39,688 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:57:39,688 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,689 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:39,689 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:39,690 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:57:39,696 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:57:39,701 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:39,714 WARN L623 FunctionHandler]: Unknown extern function __pskb_pull_tail [2022-11-25 23:57:39,719 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-11-25 23:57:39,719 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:57:39,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,730 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:57:39,731 WARN L623 FunctionHandler]: Unknown extern function rcu_read_lock_held [2022-11-25 23:57:39,731 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 23:57:39,752 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:57:39,755 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 23:57:39,756 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:57:39,756 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:39,757 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:57:39,758 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:57:39,759 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 23:57:39,759 WARN L623 FunctionHandler]: Unknown extern function iov_iter_init [2022-11-25 23:57:39,760 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_iter [2022-11-25 23:57:39,760 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,762 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,762 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,762 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,775 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:57:39,784 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,785 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,786 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-11-25 23:57:39,788 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-11-25 23:57:39,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,790 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,790 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,792 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,792 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,793 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,793 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,795 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,795 WARN L623 FunctionHandler]: Unknown extern function slhc_init [2022-11-25 23:57:39,796 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,797 WARN L623 FunctionHandler]: Unknown extern function slhc_free [2022-11-25 23:57:39,799 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_create [2022-11-25 23:57:39,799 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:39,800 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:39,801 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_create [2022-11-25 23:57:39,801 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:39,802 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:39,802 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,805 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,806 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,806 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,807 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:39,810 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:57:39,810 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:39,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,812 WARN L623 FunctionHandler]: Unknown extern function register_pernet_device [2022-11-25 23:57:39,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:39,814 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-25 23:57:39,815 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_device [2022-11-25 23:57:39,816 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:39,817 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,817 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,824 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:39,826 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:39,826 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,828 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,828 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,828 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:39,829 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,829 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:39,830 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,830 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,830 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,831 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:39,832 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,833 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,834 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:39,835 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,836 WARN L623 FunctionHandler]: Unknown extern function slhc_compress [2022-11-25 23:57:39,837 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,838 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,838 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,839 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:57:39,840 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,841 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,841 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:39,842 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,843 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,845 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,845 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,852 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,854 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,856 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,857 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,858 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:39,859 WARN L623 FunctionHandler]: Unknown extern function skb_queue_head [2022-11-25 23:57:39,860 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:39,861 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,903 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,903 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,904 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,905 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,905 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:39,905 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:39,907 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,908 WARN L623 FunctionHandler]: Unknown extern function slhc_toss [2022-11-25 23:57:39,910 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,911 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,911 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-11-25 23:57:39,912 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,912 WARN L623 FunctionHandler]: Unknown extern function slhc_uncompress [2022-11-25 23:57:39,913 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,913 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,914 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 23:57:39,915 WARN L623 FunctionHandler]: Unknown extern function slhc_remember [2022-11-25 23:57:39,915 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,916 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:57:39,916 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,917 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:57:39,917 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:39,918 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:39,919 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,920 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,923 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,923 WARN L623 FunctionHandler]: Unknown extern function skb_pull_rcsum [2022-11-25 23:57:39,930 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:57:39,930 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,932 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,936 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,936 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:57:39,936 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:57:39,937 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:39,940 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:57:39,940 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:57:39,942 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,944 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,944 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:39,949 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,950 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,952 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,954 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,956 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,959 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,960 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:39,961 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-25 23:57:39,968 WARN L623 FunctionHandler]: Unknown extern function __init_rwsem [2022-11-25 23:57:39,969 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:39,969 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-11-25 23:57:39,972 WARN L623 FunctionHandler]: Unknown extern function down_write [2022-11-25 23:57:39,973 WARN L623 FunctionHandler]: Unknown extern function up_write [2022-11-25 23:57:39,973 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:39,974 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:39,977 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-11-25 23:57:39,990 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:39,991 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:40,002 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:40,003 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:40,004 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:57:40,006 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:40,007 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:57:40,008 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:40,009 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:57:40,010 WARN L623 FunctionHandler]: Unknown extern function slhc_free [2022-11-25 23:57:40,010 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:40,010 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:40,011 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:40,011 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:40,012 WARN L623 FunctionHandler]: Unknown extern function bpf_prog_destroy [2022-11-25 23:57:40,012 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:57:40,016 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:57:40,017 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:57:40,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:40,018 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:40,018 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:57:40,019 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:57:40,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:40,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:57:40,020 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-25 23:57:40,021 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_device [2022-11-25 23:57:40,039 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-25 23:57:40,060 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:40,066 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-11-25 23:57:40,067 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:57:40,067 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:40,068 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:57:40,068 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:57:40,085 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:57:40,096 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:57:40,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-11-25 23:57:40,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-11-25 23:57:40,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-11-25 23:57:40,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-11-25 23:57:40,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-11-25 23:57:40,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-11-25 23:57:40,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-11-25 23:57:40,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-11-25 23:57:40,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-11-25 23:57:40,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-11-25 23:57:40,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-11-25 23:57:40,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-11-25 23:57:40,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-11-25 23:57:40,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-11-25 23:57:40,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-11-25 23:57:40,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-11-25 23:57:40,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-11-25 23:57:40,161 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-11-25 23:57:40,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-11-25 23:57:40,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-11-25 23:57:40,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-11-25 23:57:40,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-11-25 23:57:40,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-11-25 23:57:40,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-11-25 23:57:40,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-11-25 23:57:40,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-11-25 23:57:40,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-11-25 23:57:40,166 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-11-25 23:57:40,166 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-11-25 23:57:40,166 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-11-25 23:57:40,167 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-11-25 23:57:40,167 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-11-25 23:57:40,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-11-25 23:57:40,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-11-25 23:57:40,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-11-25 23:57:40,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-11-25 23:57:40,169 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-11-25 23:57:40,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-11-25 23:57:40,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-11-25 23:57:40,171 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-11-25 23:57:40,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-11-25 23:57:40,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-11-25 23:57:40,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-11-25 23:57:40,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-11-25 23:57:40,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-11-25 23:57:40,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-11-25 23:57:40,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-11-25 23:57:40,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-11-25 23:57:40,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-11-25 23:57:40,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-11-25 23:57:40,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-11-25 23:57:40,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-11-25 23:57:40,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-11-25 23:57:40,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-11-25 23:57:40,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-11-25 23:57:40,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-11-25 23:57:40,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-11-25 23:57:40,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-11-25 23:57:40,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-11-25 23:57:40,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-11-25 23:57:40,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-11-25 23:57:40,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-11-25 23:57:40,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-11-25 23:57:40,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-11-25 23:57:40,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-11-25 23:57:40,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-11-25 23:57:40,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-11-25 23:57:40,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-11-25 23:57:40,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-11-25 23:57:40,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-11-25 23:57:40,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-11-25 23:57:40,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-11-25 23:57:40,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-11-25 23:57:40,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-11-25 23:57:40,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-11-25 23:57:40,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-11-25 23:57:40,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-11-25 23:57:40,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-11-25 23:57:40,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-11-25 23:57:40,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-11-25 23:57:40,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-11-25 23:57:40,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-11-25 23:57:40,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-11-25 23:57:40,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-11-25 23:57:40,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-11-25 23:57:40,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-11-25 23:57:40,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-11-25 23:57:40,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-11-25 23:57:40,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:40,649 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:57:40,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40 WrapperNode [2022-11-25 23:57:40,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:40,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:40,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:57:40,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:57:40,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:40,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,115 INFO L138 Inliner]: procedures = 776, calls = 2914, calls flagged for inlining = 349, calls inlined = 276, statements flattened = 7285 [2022-11-25 23:57:41,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:41,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:57:41,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:57:41,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:57:41,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:57:41,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:57:41,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:57:41,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:57:41,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (1/1) ... [2022-11-25 23:57:41,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:57:41,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:57:41,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5f4cef6-ced8-43d4-bad7-7d867059d158/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:57:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-25 23:57:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-25 23:57:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-25 23:57:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-25 23:57:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-25 23:57:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-25 23:57:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-25 23:57:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-11-25 23:57:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-11-25 23:57:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-11-25 23:57:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-11-25 23:57:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 23:57:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 23:57:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-11-25 23:57:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-11-25 23:57:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-11-25 23:57:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-11-25 23:57:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:57:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:57:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:57:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:57:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__double_init [2022-11-25 23:57:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__double_init [2022-11-25 23:57:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-25 23:57:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-25 23:57:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-25 23:57:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-25 23:57:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:57:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:57:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-25 23:57:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-25 23:57:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:57:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:57:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:57:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:57:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:57:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:57:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:57:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-25 23:57:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-25 23:57:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-11-25 23:57:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-11-25 23:57:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 23:57:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 23:57:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:57:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:57:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-11-25 23:57:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-11-25 23:57:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:57:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-25 23:57:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-25 23:57:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:57:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__not_initialized [2022-11-25 23:57:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__not_initialized [2022-11-25 23:57:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-11-25 23:57:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-11-25 23:57:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:57:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:57:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:57:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:57:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-25 23:57:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-25 23:57:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-25 23:57:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-25 23:57:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-25 23:57:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-25 23:57:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-25 23:57:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-25 23:57:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:57:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:57:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-25 23:57:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-25 23:57:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-11-25 23:57:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-11-25 23:57:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_198 [2022-11-25 23:57:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_198 [2022-11-25 23:57:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:57:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:57:41,830 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:57:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:57:41,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:57:41,830 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-25 23:57:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-25 23:57:41,831 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-11-25 23:57:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-11-25 23:57:41,831 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-25 23:57:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-25 23:57:41,831 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 23:57:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 23:57:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-25 23:57:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-25 23:57:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:57:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:57:41,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:57:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:57:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:57:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:57:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:57:41,833 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:57:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:57:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:57:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:57:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-11-25 23:57:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-11-25 23:57:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:57:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-11-25 23:57:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-11-25 23:57:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-11-25 23:57:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-11-25 23:57:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-11-25 23:57:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-11-25 23:57:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2022-11-25 23:57:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2022-11-25 23:57:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_idr_alloc_p [2022-11-25 23:57:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_idr_alloc_p [2022-11-25 23:57:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:57:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:57:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-11-25 23:57:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-11-25 23:57:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-11-25 23:57:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-11-25 23:57:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:57:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:57:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2022-11-25 23:57:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2022-11-25 23:57:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-25 23:57:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-25 23:57:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:57:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:57:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:57:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:57:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-25 23:57:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-25 23:57:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-25 23:57:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-25 23:57:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:57:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:57:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:57:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-25 23:57:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-25 23:57:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:57:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:57:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-11-25 23:57:41,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-11-25 23:57:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-25 23:57:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-25 23:57:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 23:57:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 23:57:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-11-25 23:57:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-11-25 23:57:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-11-25 23:57:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-11-25 23:57:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-11-25 23:57:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-11-25 23:57:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-11-25 23:57:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-11-25 23:57:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:57:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:57:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:57:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:57:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_159 [2022-11-25 23:57:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_159 [2022-11-25 23:57:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:57:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:57:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-11-25 23:57:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-11-25 23:57:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:57:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:57:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:57:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:57:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:57:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:57:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-25 23:57:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-25 23:57:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-11-25 23:57:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-11-25 23:57:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:57:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:57:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-25 23:57:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-25 23:57:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:57:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:57:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:57:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:57:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:57:41,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:57:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:57:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-11-25 23:57:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-11-25 23:57:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 23:57:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 23:57:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-11-25 23:57:41,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-11-25 23:57:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:57:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:57:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_197 [2022-11-25 23:57:41,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_197 [2022-11-25 23:57:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:57:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 23:57:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 23:57:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_153 [2022-11-25 23:57:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_153 [2022-11-25 23:57:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:57:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:57:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:57:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 23:57:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 23:57:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 23:57:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 23:57:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:57:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:57:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-11-25 23:57:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-11-25 23:57:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-11-25 23:57:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-11-25 23:57:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_166 [2022-11-25 23:57:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_166 [2022-11-25 23:57:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-11-25 23:57:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-11-25 23:57:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 23:57:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 23:57:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-11-25 23:57:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-11-25 23:57:41,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_131 [2022-11-25 23:57:41,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_131 [2022-11-25 23:57:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-25 23:57:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-25 23:57:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-11-25 23:57:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-11-25 23:57:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:57:41,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:57:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-25 23:57:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-25 23:57:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-11-25 23:57:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-11-25 23:57:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-11-25 23:57:41,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-11-25 23:57:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-11-25 23:57:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-11-25 23:57:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2022-11-25 23:57:41,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2022-11-25 23:57:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:57:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:57:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:57:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:57:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 23:57:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 23:57:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:57:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:57:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-11-25 23:57:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-11-25 23:57:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-11-25 23:57:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-11-25 23:57:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-25 23:57:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-25 23:57:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-25 23:57:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-25 23:57:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-25 23:57:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-25 23:57:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:57:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:57:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:57:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2022-11-25 23:57:41,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2022-11-25 23:57:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:57:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:57:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:57:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:57:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-11-25 23:57:41,865 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-11-25 23:57:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:57:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:57:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-11-25 23:57:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-11-25 23:57:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 23:57:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 23:57:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-11-25 23:57:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-11-25 23:57:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:57:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 23:57:41,867 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 23:57:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_167 [2022-11-25 23:57:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_167 [2022-11-25 23:57:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-11-25 23:57:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-11-25 23:57:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-25 23:57:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-25 23:57:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 23:57:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 23:57:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:57:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:57:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_154 [2022-11-25 23:57:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_154 [2022-11-25 23:57:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:57:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:57:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-11-25 23:57:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-11-25 23:57:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-11-25 23:57:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-11-25 23:57:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-11-25 23:57:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-11-25 23:57:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:57:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:57:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:57:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:57:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-25 23:57:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-25 23:57:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-11-25 23:57:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-11-25 23:57:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_134 [2022-11-25 23:57:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_134 [2022-11-25 23:57:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-11-25 23:57:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-11-25 23:57:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-25 23:57:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-25 23:57:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:57:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:57:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:57:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:57:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-11-25 23:57:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-11-25 23:57:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-11-25 23:57:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-11-25 23:57:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:57:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:57:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-25 23:57:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-25 23:57:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-25 23:57:41,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-25 23:57:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:57:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:57:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-25 23:57:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-25 23:57:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-25 23:57:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-25 23:57:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-25 23:57:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-11-25 23:57:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 23:57:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 23:57:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-25 23:57:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-25 23:57:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:57:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:57:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:57:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:57:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-11-25 23:57:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-11-25 23:57:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-11-25 23:57:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-11-25 23:57:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:57:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 23:57:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-11-25 23:57:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-11-25 23:57:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:57:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-25 23:57:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-25 23:57:43,186 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:57:43,191 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:57:43,469 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:57:51,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:57:53,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:57:53,981 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-25 23:57:53,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:53 BoogieIcfgContainer [2022-11-25 23:57:53,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:57:53,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:57:53,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:57:54,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:57:54,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:32" (1/3) ... [2022-11-25 23:57:54,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab087b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:54, skipping insertion in model container [2022-11-25 23:57:54,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:40" (2/3) ... [2022-11-25 23:57:54,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab087b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:54, skipping insertion in model container [2022-11-25 23:57:54,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:53" (3/3) ... [2022-11-25 23:57:54,005 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-11-25 23:57:54,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:57:54,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-25 23:57:54,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:57:54,192 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;@27744b87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:57:54,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-11-25 23:57:54,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 2106 states, 1230 states have (on average 1.3471544715447155) internal successors, (1657), 1349 states have internal predecessors, (1657), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) [2022-11-25 23:57:54,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:57:54,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:54,223 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:54,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:57:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1953615610, now seen corresponding path program 1 times [2022-11-25 23:57:54,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:54,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982126846] [2022-11-25 23:57:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:54,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:57:55,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:55,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982126846] [2022-11-25 23:57:55,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982126846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:55,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:55,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:57:55,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659546286] [2022-11-25 23:57:55,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:55,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:55,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:55,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:55,572 INFO L87 Difference]: Start difference. First operand has 2106 states, 1230 states have (on average 1.3471544715447155) internal successors, (1657), 1349 states have internal predecessors, (1657), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:58:02,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:04,448 INFO L93 Difference]: Finished difference Result 6207 states and 9280 transitions. [2022-11-25 23:58:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:04,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2022-11-25 23:58:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:04,500 INFO L225 Difference]: With dead ends: 6207 [2022-11-25 23:58:04,500 INFO L226 Difference]: Without dead ends: 4091 [2022-11-25 23:58:04,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:58:04,528 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 2893 mSDsluCounter, 12153 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 16990 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:04,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 16990 Invalid, 2196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2193 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-25 23:58:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2022-11-25 23:58:04,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 4000. [2022-11-25 23:58:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4000 states, 2351 states have (on average 1.309230114844747) internal successors, (3078), 2539 states have internal predecessors, (3078), 1274 states have call successors, (1274), 333 states have call predecessors, (1274), 332 states have return successors, (1274), 1222 states have call predecessors, (1274), 1272 states have call successors, (1274) [2022-11-25 23:58:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4000 states to 4000 states and 5626 transitions. [2022-11-25 23:58:04,944 INFO L78 Accepts]: Start accepts. Automaton has 4000 states and 5626 transitions. Word has length 25 [2022-11-25 23:58:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:04,945 INFO L495 AbstractCegarLoop]: Abstraction has 4000 states and 5626 transitions. [2022-11-25 23:58:04,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:58:04,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4000 states and 5626 transitions. [2022-11-25 23:58:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 23:58:04,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:04,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:04,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:58:04,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:04,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:04,950 INFO L85 PathProgramCache]: Analyzing trace with hash 454620520, now seen corresponding path program 1 times [2022-11-25 23:58:04,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:04,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288761556] [2022-11-25 23:58:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:04,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 23:58:05,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:05,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288761556] [2022-11-25 23:58:05,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288761556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:05,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:05,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:05,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780744560] [2022-11-25 23:58:05,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:05,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:05,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:05,676 INFO L87 Difference]: Start difference. First operand 4000 states and 5626 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 23:58:10,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:13,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:58:14,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:14,713 INFO L93 Difference]: Finished difference Result 5224 states and 7300 transitions. [2022-11-25 23:58:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:14,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-11-25 23:58:14,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:14,757 INFO L225 Difference]: With dead ends: 5224 [2022-11-25 23:58:14,757 INFO L226 Difference]: Without dead ends: 5222 [2022-11-25 23:58:14,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:58:14,765 INFO L413 NwaCegarLoop]: 3169 mSDtfsCounter, 2875 mSDsluCounter, 7792 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2878 SdHoareTripleChecker+Valid, 10961 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:14,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2878 Valid, 10961 Invalid, 1384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1382 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-11-25 23:58:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2022-11-25 23:58:15,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5191. [2022-11-25 23:58:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 3052 states have (on average 1.3083224115334207) internal successors, (3993), 3290 states have internal predecessors, (3993), 1643 states have call successors, (1643), 454 states have call predecessors, (1643), 454 states have return successors, (1645), 1571 states have call predecessors, (1645), 1641 states have call successors, (1645) [2022-11-25 23:58:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 7281 transitions. [2022-11-25 23:58:15,205 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 7281 transitions. Word has length 40 [2022-11-25 23:58:15,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:15,206 INFO L495 AbstractCegarLoop]: Abstraction has 5191 states and 7281 transitions. [2022-11-25 23:58:15,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 23:58:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 7281 transitions. [2022-11-25 23:58:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 23:58:15,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:15,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:15,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:58:15,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1010617600, now seen corresponding path program 1 times [2022-11-25 23:58:15,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:15,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039332932] [2022-11-25 23:58:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:15,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:15,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039332932] [2022-11-25 23:58:15,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039332932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:15,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:15,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164503663] [2022-11-25 23:58:15,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:15,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:15,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:15,712 INFO L87 Difference]: Start difference. First operand 5191 states and 7281 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 23:58:19,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:22,158 INFO L93 Difference]: Finished difference Result 5222 states and 7297 transitions. [2022-11-25 23:58:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:58:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 39 [2022-11-25 23:58:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:22,198 INFO L225 Difference]: With dead ends: 5222 [2022-11-25 23:58:22,199 INFO L226 Difference]: Without dead ends: 5220 [2022-11-25 23:58:22,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:22,204 INFO L413 NwaCegarLoop]: 3170 mSDtfsCounter, 2863 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:22,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 7797 Invalid, 989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 23:58:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2022-11-25 23:58:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 5189. [2022-11-25 23:58:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 3051 states have (on average 1.3077679449360866) internal successors, (3990), 3288 states have internal predecessors, (3990), 1643 states have call successors, (1643), 454 states have call predecessors, (1643), 454 states have return successors, (1645), 1571 states have call predecessors, (1645), 1641 states have call successors, (1645) [2022-11-25 23:58:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 7278 transitions. [2022-11-25 23:58:22,697 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 7278 transitions. Word has length 39 [2022-11-25 23:58:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:22,698 INFO L495 AbstractCegarLoop]: Abstraction has 5189 states and 7278 transitions. [2022-11-25 23:58:22,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 23:58:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 7278 transitions. [2022-11-25 23:58:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:58:22,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:22,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:22,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:58:22,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash -345012781, now seen corresponding path program 1 times [2022-11-25 23:58:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:22,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140163614] [2022-11-25 23:58:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:23,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:23,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140163614] [2022-11-25 23:58:23,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140163614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:23,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:23,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354838839] [2022-11-25 23:58:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:23,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:23,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:23,255 INFO L87 Difference]: Start difference. First operand 5189 states and 7278 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 23:58:26,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:58:29,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:30,802 INFO L93 Difference]: Finished difference Result 6796 states and 9372 transitions. [2022-11-25 23:58:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:58:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 44 [2022-11-25 23:58:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:30,847 INFO L225 Difference]: With dead ends: 6796 [2022-11-25 23:58:30,848 INFO L226 Difference]: Without dead ends: 6794 [2022-11-25 23:58:30,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:30,855 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 2820 mSDsluCounter, 4617 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:30,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 7777 Invalid, 989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 987 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-25 23:58:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2022-11-25 23:58:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 6763. [2022-11-25 23:58:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 3946 states have (on average 1.2972630511910797) internal successors, (5119), 4232 states have internal predecessors, (5119), 2115 states have call successors, (2115), 662 states have call predecessors, (2115), 662 states have return successors, (2119), 2027 states have call predecessors, (2119), 2113 states have call successors, (2119) [2022-11-25 23:58:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 9353 transitions. [2022-11-25 23:58:31,309 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 9353 transitions. Word has length 44 [2022-11-25 23:58:31,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:31,310 INFO L495 AbstractCegarLoop]: Abstraction has 6763 states and 9353 transitions. [2022-11-25 23:58:31,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 23:58:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 9353 transitions. [2022-11-25 23:58:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 23:58:31,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:31,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:31,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:58:31,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1605030152, now seen corresponding path program 1 times [2022-11-25 23:58:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:31,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411104009] [2022-11-25 23:58:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 23:58:31,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:31,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411104009] [2022-11-25 23:58:31,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411104009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:31,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:58:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183931570] [2022-11-25 23:58:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:58:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:58:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:58:31,967 INFO L87 Difference]: Start difference. First operand 6763 states and 9353 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:58:37,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:39,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:40,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:42,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:44,528 INFO L93 Difference]: Finished difference Result 7587 states and 10325 transitions. [2022-11-25 23:58:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:58:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-11-25 23:58:44,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:44,583 INFO L225 Difference]: With dead ends: 7587 [2022-11-25 23:58:44,583 INFO L226 Difference]: Without dead ends: 7409 [2022-11-25 23:58:44,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:58:44,591 INFO L413 NwaCegarLoop]: 2635 mSDtfsCounter, 478 mSDsluCounter, 9934 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 12569 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:44,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 12569 Invalid, 2353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 2301 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-25 23:58:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2022-11-25 23:58:45,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 7051. [2022-11-25 23:58:45,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 4115 states have (on average 1.2938031591737547) internal successors, (5324), 4409 states have internal predecessors, (5324), 2197 states have call successors, (2197), 701 states have call predecessors, (2197), 699 states have return successors, (2201), 2102 states have call predecessors, (2201), 2195 states have call successors, (2201) [2022-11-25 23:58:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 9722 transitions. [2022-11-25 23:58:45,200 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 9722 transitions. Word has length 49 [2022-11-25 23:58:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:45,200 INFO L495 AbstractCegarLoop]: Abstraction has 7051 states and 9722 transitions. [2022-11-25 23:58:45,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:58:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 9722 transitions. [2022-11-25 23:58:45,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 23:58:45,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:45,202 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:45,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:58:45,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:45,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash -619102799, now seen corresponding path program 1 times [2022-11-25 23:58:45,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:45,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561200683] [2022-11-25 23:58:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:45,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:45,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:45,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561200683] [2022-11-25 23:58:45,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561200683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:45,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:45,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:45,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730607461] [2022-11-25 23:58:45,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:45,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:45,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:45,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:45,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:45,608 INFO L87 Difference]: Start difference. First operand 7051 states and 9722 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:58:49,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:51,580 INFO L93 Difference]: Finished difference Result 7082 states and 9738 transitions. [2022-11-25 23:58:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:58:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-11-25 23:58:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:51,633 INFO L225 Difference]: With dead ends: 7082 [2022-11-25 23:58:51,633 INFO L226 Difference]: Without dead ends: 7080 [2022-11-25 23:58:51,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:51,641 INFO L413 NwaCegarLoop]: 3166 mSDtfsCounter, 2857 mSDsluCounter, 4623 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 7789 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:51,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 7789 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 23:58:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7080 states. [2022-11-25 23:58:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7080 to 7049. [2022-11-25 23:58:52,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7049 states, 4114 states have (on average 1.2933884297520661) internal successors, (5321), 4407 states have internal predecessors, (5321), 2197 states have call successors, (2197), 701 states have call predecessors, (2197), 699 states have return successors, (2201), 2102 states have call predecessors, (2201), 2195 states have call successors, (2201) [2022-11-25 23:58:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 9719 transitions. [2022-11-25 23:58:52,212 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 9719 transitions. Word has length 49 [2022-11-25 23:58:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:52,212 INFO L495 AbstractCegarLoop]: Abstraction has 7049 states and 9719 transitions. [2022-11-25 23:58:52,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 23:58:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 9719 transitions. [2022-11-25 23:58:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 23:58:52,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:52,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:52,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:58:52,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:58:52,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:52,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1390076848, now seen corresponding path program 1 times [2022-11-25 23:58:52,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:52,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154841628] [2022-11-25 23:58:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:52,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:53,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:53,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154841628] [2022-11-25 23:58:53,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154841628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:53,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:53,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 23:58:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123647806] [2022-11-25 23:58:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:58:53,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:53,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:58:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:58:53,981 INFO L87 Difference]: Start difference. First operand 7049 states and 9719 transitions. Second operand has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-25 23:59:02,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:04,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:06,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:08,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:13,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:15,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:17,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:19,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:23,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:25,625 INFO L93 Difference]: Finished difference Result 7652 states and 10457 transitions. [2022-11-25 23:59:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:59:25,626 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 53 [2022-11-25 23:59:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:25,666 INFO L225 Difference]: With dead ends: 7652 [2022-11-25 23:59:25,666 INFO L226 Difference]: Without dead ends: 7142 [2022-11-25 23:59:25,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:59:25,675 INFO L413 NwaCegarLoop]: 2524 mSDtfsCounter, 31 mSDsluCounter, 27536 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 114 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 30060 SdHoareTripleChecker+Invalid, 4795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:25,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 30060 Invalid, 4795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 4671 Invalid, 10 Unknown, 0 Unchecked, 30.7s Time] [2022-11-25 23:59:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2022-11-25 23:59:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 7089. [2022-11-25 23:59:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 4136 states have (on average 1.2918278529980658) internal successors, (5343), 4427 states have internal predecessors, (5343), 2215 states have call successors, (2215), 701 states have call predecessors, (2215), 699 states have return successors, (2219), 2120 states have call predecessors, (2219), 2213 states have call successors, (2219) [2022-11-25 23:59:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9777 transitions. [2022-11-25 23:59:26,380 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9777 transitions. Word has length 53 [2022-11-25 23:59:26,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:26,381 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 9777 transitions. [2022-11-25 23:59:26,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-25 23:59:26,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9777 transitions. [2022-11-25 23:59:26,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 23:59:26,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:26,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:26,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:59:26,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:59:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1232654018, now seen corresponding path program 1 times [2022-11-25 23:59:26,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:26,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592736382] [2022-11-25 23:59:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:26,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:26,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592736382] [2022-11-25 23:59:26,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592736382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:26,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:26,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217465532] [2022-11-25 23:59:26,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:26,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:26,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:26,760 INFO L87 Difference]: Start difference. First operand 7089 states and 9777 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 23:59:30,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:59:32,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:34,220 INFO L93 Difference]: Finished difference Result 7120 states and 9793 transitions. [2022-11-25 23:59:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:34,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 54 [2022-11-25 23:59:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:34,259 INFO L225 Difference]: With dead ends: 7120 [2022-11-25 23:59:34,259 INFO L226 Difference]: Without dead ends: 7118 [2022-11-25 23:59:34,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:34,267 INFO L413 NwaCegarLoop]: 3164 mSDtfsCounter, 2854 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 7785 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:34,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 7785 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 23:59:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7118 states. [2022-11-25 23:59:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7118 to 7087. [2022-11-25 23:59:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7087 states, 4135 states have (on average 1.2914147521160821) internal successors, (5340), 4425 states have internal predecessors, (5340), 2215 states have call successors, (2215), 701 states have call predecessors, (2215), 699 states have return successors, (2219), 2120 states have call predecessors, (2219), 2213 states have call successors, (2219) [2022-11-25 23:59:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7087 states to 7087 states and 9774 transitions. [2022-11-25 23:59:34,928 INFO L78 Accepts]: Start accepts. Automaton has 7087 states and 9774 transitions. Word has length 54 [2022-11-25 23:59:34,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:34,928 INFO L495 AbstractCegarLoop]: Abstraction has 7087 states and 9774 transitions. [2022-11-25 23:59:34,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 23:59:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 7087 states and 9774 transitions. [2022-11-25 23:59:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 23:59:34,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:34,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:34,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:59:34,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:59:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash -398925860, now seen corresponding path program 1 times [2022-11-25 23:59:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820661406] [2022-11-25 23:59:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:35,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:35,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820661406] [2022-11-25 23:59:35,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820661406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:35,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:35,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020898424] [2022-11-25 23:59:35,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:35,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:35,336 INFO L87 Difference]: Start difference. First operand 7087 states and 9774 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:59:39,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:41,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:41,911 INFO L93 Difference]: Finished difference Result 7889 states and 10730 transitions. [2022-11-25 23:59:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:41,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 59 [2022-11-25 23:59:41,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:41,952 INFO L225 Difference]: With dead ends: 7889 [2022-11-25 23:59:41,952 INFO L226 Difference]: Without dead ends: 7887 [2022-11-25 23:59:41,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:41,959 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 2854 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 5797 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:41,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 5797 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 792 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 23:59:41,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2022-11-25 23:59:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7651. [2022-11-25 23:59:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7651 states, 4460 states have (on average 1.2829596412556055) internal successors, (5722), 4762 states have internal predecessors, (5722), 2370 states have call successors, (2370), 787 states have call predecessors, (2370), 783 states have return successors, (2374), 2265 states have call predecessors, (2374), 2368 states have call successors, (2374) [2022-11-25 23:59:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7651 states to 7651 states and 10466 transitions. [2022-11-25 23:59:42,667 INFO L78 Accepts]: Start accepts. Automaton has 7651 states and 10466 transitions. Word has length 59 [2022-11-25 23:59:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:42,668 INFO L495 AbstractCegarLoop]: Abstraction has 7651 states and 10466 transitions. [2022-11-25 23:59:42,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:59:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states and 10466 transitions. [2022-11-25 23:59:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 23:59:42,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:42,671 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:42,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:59:42,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:59:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1035363641, now seen corresponding path program 1 times [2022-11-25 23:59:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:42,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136149095] [2022-11-25 23:59:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:43,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:43,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136149095] [2022-11-25 23:59:43,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136149095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:43,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:43,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:43,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834625099] [2022-11-25 23:59:43,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:43,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:43,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:43,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:43,118 INFO L87 Difference]: Start difference. First operand 7651 states and 10466 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:59:49,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:50,477 INFO L93 Difference]: Finished difference Result 7789 states and 10585 transitions. [2022-11-25 23:59:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 64 [2022-11-25 23:59:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:50,519 INFO L225 Difference]: With dead ends: 7789 [2022-11-25 23:59:50,519 INFO L226 Difference]: Without dead ends: 7787 [2022-11-25 23:59:50,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:50,527 INFO L413 NwaCegarLoop]: 4873 mSDtfsCounter, 2844 mSDsluCounter, 7329 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2848 SdHoareTripleChecker+Valid, 12202 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:50,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2848 Valid, 12202 Invalid, 1614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1611 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-25 23:59:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2022-11-25 23:59:51,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 7651. [2022-11-25 23:59:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7651 states, 4460 states have (on average 1.2827354260089685) internal successors, (5721), 4762 states have internal predecessors, (5721), 2370 states have call successors, (2370), 787 states have call predecessors, (2370), 783 states have return successors, (2374), 2265 states have call predecessors, (2374), 2368 states have call successors, (2374) [2022-11-25 23:59:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7651 states to 7651 states and 10465 transitions. [2022-11-25 23:59:51,237 INFO L78 Accepts]: Start accepts. Automaton has 7651 states and 10465 transitions. Word has length 64 [2022-11-25 23:59:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:51,238 INFO L495 AbstractCegarLoop]: Abstraction has 7651 states and 10465 transitions. [2022-11-25 23:59:51,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:59:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7651 states and 10465 transitions. [2022-11-25 23:59:51,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 23:59:51,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:51,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:51,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:59:51,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:59:51,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash 436535857, now seen corresponding path program 1 times [2022-11-25 23:59:51,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:51,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554118339] [2022-11-25 23:59:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:51,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:51,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:51,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554118339] [2022-11-25 23:59:51,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554118339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:51,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:51,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:51,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715849280] [2022-11-25 23:59:51,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:51,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:51,615 INFO L87 Difference]: Start difference. First operand 7651 states and 10465 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:59:54,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:56,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:57,450 INFO L93 Difference]: Finished difference Result 7651 states and 10465 transitions. [2022-11-25 23:59:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:57,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 69 [2022-11-25 23:59:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:57,485 INFO L225 Difference]: With dead ends: 7651 [2022-11-25 23:59:57,485 INFO L226 Difference]: Without dead ends: 7649 [2022-11-25 23:59:57,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:57,490 INFO L413 NwaCegarLoop]: 2535 mSDtfsCounter, 2853 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 5070 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:57,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2855 Valid, 5070 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 678 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 23:59:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2022-11-25 23:59:58,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 7649. [2022-11-25 23:59:58,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 4459 states have (on average 1.282350302758466) internal successors, (5718), 4760 states have internal predecessors, (5718), 2370 states have call successors, (2370), 787 states have call predecessors, (2370), 783 states have return successors, (2374), 2265 states have call predecessors, (2374), 2368 states have call successors, (2374) [2022-11-25 23:59:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 10462 transitions. [2022-11-25 23:59:58,192 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 10462 transitions. Word has length 69 [2022-11-25 23:59:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:58,193 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 10462 transitions. [2022-11-25 23:59:58,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:59:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 10462 transitions. [2022-11-25 23:59:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 23:59:58,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:58,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:58,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:59:58,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-25 23:59:58,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:58,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1864729495, now seen corresponding path program 1 times [2022-11-25 23:59:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:58,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291382775] [2022-11-25 23:59:58,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:58,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-25 23:59:58,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:58,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291382775] [2022-11-25 23:59:58,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291382775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:58,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:58,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:59:58,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256531549] [2022-11-25 23:59:58,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:58,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:59:58,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:58,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:59:58,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:59:58,906 INFO L87 Difference]: Start difference. First operand 7649 states and 10462 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-26 00:00:05,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:07,234 INFO L93 Difference]: Finished difference Result 8458 states and 11476 transitions. [2022-11-26 00:00:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:00:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 77 [2022-11-26 00:00:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:07,277 INFO L225 Difference]: With dead ends: 8458 [2022-11-26 00:00:07,277 INFO L226 Difference]: Without dead ends: 7614 [2022-11-26 00:00:07,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:00:07,287 INFO L413 NwaCegarLoop]: 2797 mSDtfsCounter, 337 mSDsluCounter, 13407 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 275 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 16204 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:07,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 16204 Invalid, 2412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [275 Valid, 2136 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-26 00:00:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7614 states. [2022-11-26 00:00:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7614 to 7537. [2022-11-26 00:00:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7537 states, 4393 states have (on average 1.28226724334168) internal successors, (5633), 4689 states have internal predecessors, (5633), 2334 states have call successors, (2334), 777 states have call predecessors, (2334), 773 states have return successors, (2338), 2230 states have call predecessors, (2338), 2332 states have call successors, (2338) [2022-11-26 00:00:08,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7537 states to 7537 states and 10305 transitions. [2022-11-26 00:00:08,089 INFO L78 Accepts]: Start accepts. Automaton has 7537 states and 10305 transitions. Word has length 77 [2022-11-26 00:00:08,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:08,090 INFO L495 AbstractCegarLoop]: Abstraction has 7537 states and 10305 transitions. [2022-11-26 00:00:08,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-26 00:00:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7537 states and 10305 transitions. [2022-11-26 00:00:08,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:00:08,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:08,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:08,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:00:08,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:00:08,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:08,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1915149163, now seen corresponding path program 1 times [2022-11-26 00:00:08,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:08,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885616312] [2022-11-26 00:00:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:00:08,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:08,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885616312] [2022-11-26 00:00:08,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885616312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:08,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:08,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:08,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768077798] [2022-11-26 00:00:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:08,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:08,448 INFO L87 Difference]: Start difference. First operand 7537 states and 10305 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 00:00:13,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:14,864 INFO L93 Difference]: Finished difference Result 12381 states and 16925 transitions. [2022-11-26 00:00:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:14,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 74 [2022-11-26 00:00:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:14,933 INFO L225 Difference]: With dead ends: 12381 [2022-11-26 00:00:14,933 INFO L226 Difference]: Without dead ends: 12379 [2022-11-26 00:00:14,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:14,943 INFO L413 NwaCegarLoop]: 3103 mSDtfsCounter, 2464 mSDsluCounter, 5603 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 8706 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:14,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 8706 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:00:14,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2022-11-26 00:00:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12147. [2022-11-26 00:00:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12147 states, 7044 states have (on average 1.2762634866553095) internal successors, (8990), 7469 states have internal predecessors, (8990), 3786 states have call successors, (3786), 1284 states have call predecessors, (3786), 1280 states have return successors, (3900), 3637 states have call predecessors, (3900), 3784 states have call successors, (3900) [2022-11-26 00:00:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12147 states to 12147 states and 16676 transitions. [2022-11-26 00:00:16,175 INFO L78 Accepts]: Start accepts. Automaton has 12147 states and 16676 transitions. Word has length 74 [2022-11-26 00:00:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:16,175 INFO L495 AbstractCegarLoop]: Abstraction has 12147 states and 16676 transitions. [2022-11-26 00:00:16,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 00:00:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 12147 states and 16676 transitions. [2022-11-26 00:00:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-26 00:00:16,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:16,176 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:00:16,177 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:00:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2082784248, now seen corresponding path program 1 times [2022-11-26 00:00:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:16,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522853387] [2022-11-26 00:00:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:00:16,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:16,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522853387] [2022-11-26 00:00:16,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522853387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:16,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:16,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145052527] [2022-11-26 00:00:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:16,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:16,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:16,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:16,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:16,549 INFO L87 Difference]: Start difference. First operand 12147 states and 16676 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, (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 00:00:21,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:24,692 INFO L93 Difference]: Finished difference Result 19001 states and 26205 transitions. [2022-11-26 00:00:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:24,693 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, (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 76 [2022-11-26 00:00:24,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:24,783 INFO L225 Difference]: With dead ends: 19001 [2022-11-26 00:00:24,783 INFO L226 Difference]: Without dead ends: 18999 [2022-11-26 00:00:24,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:24,792 INFO L413 NwaCegarLoop]: 3438 mSDtfsCounter, 2858 mSDsluCounter, 5852 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:24,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2860 Valid, 9290 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1110 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 00:00:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18999 states. [2022-11-26 00:00:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18999 to 18756. [2022-11-26 00:00:26,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18756 states, 10926 states have (on average 1.280798096284093) internal successors, (13994), 11583 states have internal predecessors, (13994), 5825 states have call successors, (5825), 1971 states have call predecessors, (5825), 1968 states have return successors, (6119), 5580 states have call predecessors, (6119), 5823 states have call successors, (6119) [2022-11-26 00:00:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 25938 transitions. [2022-11-26 00:00:26,759 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 25938 transitions. Word has length 76 [2022-11-26 00:00:26,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:26,759 INFO L495 AbstractCegarLoop]: Abstraction has 18756 states and 25938 transitions. [2022-11-26 00:00:26,759 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, (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 00:00:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 25938 transitions. [2022-11-26 00:00:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:00:26,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:26,762 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:26,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:00:26,762 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:00:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1231457553, now seen corresponding path program 1 times [2022-11-26 00:00:26,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:26,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519457558] [2022-11-26 00:00:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:26,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:00:27,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:27,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519457558] [2022-11-26 00:00:27,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519457558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:27,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:27,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433859112] [2022-11-26 00:00:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:27,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:27,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:27,199 INFO L87 Difference]: Start difference. First operand 18756 states and 25938 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 00:00:34,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:36,641 INFO L93 Difference]: Finished difference Result 29322 states and 40785 transitions. [2022-11-26 00:00:36,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:36,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 81 [2022-11-26 00:00:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:36,778 INFO L225 Difference]: With dead ends: 29322 [2022-11-26 00:00:36,778 INFO L226 Difference]: Without dead ends: 29320 [2022-11-26 00:00:36,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:36,792 INFO L413 NwaCegarLoop]: 3488 mSDtfsCounter, 2842 mSDsluCounter, 5999 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 9487 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:36,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 9487 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1120 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-26 00:00:36,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29320 states. [2022-11-26 00:00:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29320 to 29107. [2022-11-26 00:00:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29107 states, 16908 states have (on average 1.2784480719186184) internal successors, (21616), 17891 states have internal predecessors, (21616), 9082 states have call successors, (9082), 3083 states have call predecessors, (9082), 3080 states have return successors, (9866), 8717 states have call predecessors, (9866), 9080 states have call successors, (9866) [2022-11-26 00:00:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29107 states to 29107 states and 40564 transitions. [2022-11-26 00:00:39,731 INFO L78 Accepts]: Start accepts. Automaton has 29107 states and 40564 transitions. Word has length 81 [2022-11-26 00:00:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:39,732 INFO L495 AbstractCegarLoop]: Abstraction has 29107 states and 40564 transitions. [2022-11-26 00:00:39,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 00:00:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 29107 states and 40564 transitions. [2022-11-26 00:00:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-26 00:00:39,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:39,735 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:39,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:00:39,735 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:00:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash -790654746, now seen corresponding path program 1 times [2022-11-26 00:00:39,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:39,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010442930] [2022-11-26 00:00:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:39,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-26 00:00:40,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:40,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010442930] [2022-11-26 00:00:40,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010442930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:40,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:40,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072785143] [2022-11-26 00:00:40,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:40,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:40,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:40,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:40,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:40,431 INFO L87 Difference]: Start difference. First operand 29107 states and 40564 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 00:00:46,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:49,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:49,296 INFO L93 Difference]: Finished difference Result 29519 states and 41011 transitions. [2022-11-26 00:00:49,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:49,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 84 [2022-11-26 00:00:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:49,432 INFO L225 Difference]: With dead ends: 29519 [2022-11-26 00:00:49,432 INFO L226 Difference]: Without dead ends: 29517 [2022-11-26 00:00:49,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:00:49,446 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 2840 mSDsluCounter, 8435 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 11789 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:49,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 11789 Invalid, 1517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1515 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-26 00:00:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29517 states. [2022-11-26 00:00:51,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29517 to 29105. [2022-11-26 00:00:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29105 states, 16907 states have (on average 1.2781096587212397) internal successors, (21609), 17889 states have internal predecessors, (21609), 9082 states have call successors, (9082), 3083 states have call predecessors, (9082), 3080 states have return successors, (9866), 8717 states have call predecessors, (9866), 9080 states have call successors, (9866) [2022-11-26 00:00:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29105 states to 29105 states and 40557 transitions. [2022-11-26 00:00:52,043 INFO L78 Accepts]: Start accepts. Automaton has 29105 states and 40557 transitions. Word has length 84 [2022-11-26 00:00:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:52,044 INFO L495 AbstractCegarLoop]: Abstraction has 29105 states and 40557 transitions. [2022-11-26 00:00:52,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 00:00:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 29105 states and 40557 transitions. [2022-11-26 00:00:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:00:52,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:52,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:52,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:00:52,047 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:00:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash 596671483, now seen corresponding path program 1 times [2022-11-26 00:00:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:52,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242928717] [2022-11-26 00:00:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:00:52,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242928717] [2022-11-26 00:00:52,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242928717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:52,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:52,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023738230] [2022-11-26 00:00:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:52,387 INFO L87 Difference]: Start difference. First operand 29105 states and 40557 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:00:57,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:00,860 INFO L93 Difference]: Finished difference Result 29136 states and 40573 transitions. [2022-11-26 00:01:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:01:00,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 86 [2022-11-26 00:01:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:00,958 INFO L225 Difference]: With dead ends: 29136 [2022-11-26 00:01:00,958 INFO L226 Difference]: Without dead ends: 29134 [2022-11-26 00:01:00,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:00,971 INFO L413 NwaCegarLoop]: 3158 mSDtfsCounter, 2842 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 7773 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:00,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 7773 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:01:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29134 states. [2022-11-26 00:01:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29134 to 29103. [2022-11-26 00:01:03,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29103 states, 16906 states have (on average 1.2780078078788595) internal successors, (21606), 17887 states have internal predecessors, (21606), 9082 states have call successors, (9082), 3083 states have call predecessors, (9082), 3080 states have return successors, (9866), 8717 states have call predecessors, (9866), 9080 states have call successors, (9866) [2022-11-26 00:01:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29103 states to 29103 states and 40554 transitions. [2022-11-26 00:01:03,943 INFO L78 Accepts]: Start accepts. Automaton has 29103 states and 40554 transitions. Word has length 86 [2022-11-26 00:01:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:03,943 INFO L495 AbstractCegarLoop]: Abstraction has 29103 states and 40554 transitions. [2022-11-26 00:01:03,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 00:01:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29103 states and 40554 transitions. [2022-11-26 00:01:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-26 00:01:03,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:03,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:03,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:01:03,946 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:01:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:03,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1861054997, now seen corresponding path program 1 times [2022-11-26 00:01:03,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:03,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713596782] [2022-11-26 00:01:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:03,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:01:04,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:04,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713596782] [2022-11-26 00:01:04,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713596782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:04,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:04,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884647867] [2022-11-26 00:01:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:04,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:04,334 INFO L87 Difference]: Start difference. First operand 29103 states and 40554 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:01:08,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:01:11,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:14,420 INFO L93 Difference]: Finished difference Result 29146 states and 40582 transitions. [2022-11-26 00:01:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:01:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 91 [2022-11-26 00:01:14,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:14,537 INFO L225 Difference]: With dead ends: 29146 [2022-11-26 00:01:14,537 INFO L226 Difference]: Without dead ends: 29144 [2022-11-26 00:01:14,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:14,550 INFO L413 NwaCegarLoop]: 3148 mSDtfsCounter, 2799 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 7753 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:14,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 7753 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 987 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-26 00:01:14,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29144 states. [2022-11-26 00:01:17,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29144 to 29107. [2022-11-26 00:01:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29107 states, 16909 states have (on average 1.277840203441954) internal successors, (21607), 17891 states have internal predecessors, (21607), 9082 states have call successors, (9082), 3083 states have call predecessors, (9082), 3082 states have return successors, (9868), 8717 states have call predecessors, (9868), 9080 states have call successors, (9868) [2022-11-26 00:01:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29107 states to 29107 states and 40557 transitions. [2022-11-26 00:01:17,285 INFO L78 Accepts]: Start accepts. Automaton has 29107 states and 40557 transitions. Word has length 91 [2022-11-26 00:01:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:17,286 INFO L495 AbstractCegarLoop]: Abstraction has 29107 states and 40557 transitions. [2022-11-26 00:01:17,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 00:01:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 29107 states and 40557 transitions. [2022-11-26 00:01:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-26 00:01:17,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:17,288 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:17,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:01:17,288 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:01:17,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1241922549, now seen corresponding path program 1 times [2022-11-26 00:01:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:17,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590283233] [2022-11-26 00:01:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:17,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-26 00:01:17,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:17,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590283233] [2022-11-26 00:01:17,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590283233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:17,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:17,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:01:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006680789] [2022-11-26 00:01:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:17,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:01:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:17,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:01:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:17,790 INFO L87 Difference]: Start difference. First operand 29107 states and 40557 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:01:23,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:27,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:27,081 INFO L93 Difference]: Finished difference Result 29138 states and 40573 transitions. [2022-11-26 00:01:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:27,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 94 [2022-11-26 00:01:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:27,217 INFO L225 Difference]: With dead ends: 29138 [2022-11-26 00:01:27,218 INFO L226 Difference]: Without dead ends: 29136 [2022-11-26 00:01:27,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:01:27,234 INFO L413 NwaCegarLoop]: 3151 mSDtfsCounter, 2833 mSDsluCounter, 7756 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 10907 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:27,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 10907 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-26 00:01:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29136 states. [2022-11-26 00:01:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29136 to 29105. [2022-11-26 00:01:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29105 states, 16908 states have (on average 1.2771469127040453) internal successors, (21594), 17889 states have internal predecessors, (21594), 9082 states have call successors, (9082), 3083 states have call predecessors, (9082), 3082 states have return successors, (9868), 8717 states have call predecessors, (9868), 9080 states have call successors, (9868) [2022-11-26 00:01:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29105 states to 29105 states and 40544 transitions. [2022-11-26 00:01:29,630 INFO L78 Accepts]: Start accepts. Automaton has 29105 states and 40544 transitions. Word has length 94 [2022-11-26 00:01:29,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:29,631 INFO L495 AbstractCegarLoop]: Abstraction has 29105 states and 40544 transitions. [2022-11-26 00:01:29,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:01:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 29105 states and 40544 transitions. [2022-11-26 00:01:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-26 00:01:29,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:29,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:29,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:01:29,633 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2022-11-26 00:01:29,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1717782715, now seen corresponding path program 1 times [2022-11-26 00:01:29,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:29,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951818071] [2022-11-26 00:01:29,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:29,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:01:29,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:29,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951818071] [2022-11-26 00:01:29,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951818071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:29,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:29,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:29,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781307190] [2022-11-26 00:01:29,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:29,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:29,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:29,983 INFO L87 Difference]: Start difference. First operand 29105 states and 40544 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 00:01:38,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:40,006 INFO L93 Difference]: Finished difference Result 43715 states and 61795 transitions. [2022-11-26 00:01:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 96 [2022-11-26 00:01:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:40,195 INFO L225 Difference]: With dead ends: 43715 [2022-11-26 00:01:40,196 INFO L226 Difference]: Without dead ends: 43713 [2022-11-26 00:01:40,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:40,213 INFO L413 NwaCegarLoop]: 2982 mSDtfsCounter, 1865 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 8467 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:40,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 8467 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-26 00:01:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43713 states.