./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/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_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/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_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/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 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:07:59,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:07:59,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:07:59,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:07:59,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:07:59,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:07:59,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:07:59,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:07:59,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:07:59,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:07:59,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:07:59,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:07:59,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:07:59,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:07:59,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:07:59,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:07:59,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:07:59,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:07:59,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:07:59,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:07:59,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:07:59,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:07:59,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:07:59,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:07:59,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:07:59,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:07:59,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:07:59,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:07:59,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:07:59,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:07:59,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:07:59,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:07:59,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:07:59,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:07:59,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:07:59,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:07:59,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:07:59,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:07:59,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:07:59,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:07:59,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:07:59,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:07:59,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:07:59,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:07:59,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:07:59,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:07:59,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:07:59,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:07:59,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:07:59,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:07:59,333 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:07:59,333 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:07:59,334 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:07:59,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:07:59,335 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:07:59,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:07:59,335 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:07:59,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:07:59,336 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:07:59,336 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:07:59,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:07:59,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:07:59,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:07:59,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:07:59,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:07:59,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:07:59,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:07:59,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:07:59,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:07:59,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:07:59,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:07:59,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:07:59,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:07:59,340 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:07:59,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:07:59,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:07:59,340 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:07:59,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:07:59,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:07:59,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:07:59,342 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_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2022-11-26 00:07:59,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:07:59,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:07:59,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:07:59,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:07:59,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:07:59,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-11-26 00:08:02,785 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:08:03,543 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:08:03,544 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-11-26 00:08:03,595 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/data/856d09c1e/8c2a9aad662545199a8922ec7189eb05/FLAG73341ecff [2022-11-26 00:08:03,610 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/data/856d09c1e/8c2a9aad662545199a8922ec7189eb05 [2022-11-26 00:08:03,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:08:03,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:08:03,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:03,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:08:03,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:08:03,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:03" (1/1) ... [2022-11-26 00:08:03,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c548cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:03, skipping insertion in model container [2022-11-26 00:08:03,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:03" (1/1) ... [2022-11-26 00:08:03,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:08:03,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:08:04,483 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:08:04,504 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 00:08:04,685 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:04,902 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:04,917 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:04,952 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-26 00:08:04,966 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-26 00:08:05,054 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-11-26 00:08:05,062 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-11-26 00:08:05,074 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:05,075 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:05,078 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-26 00:08:05,079 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-26 00:08:05,087 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:05,088 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:05,089 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:05,105 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:05,106 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:05,107 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:05,407 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:05,445 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:05,446 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:08:05,447 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:08:05,448 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:08:05,454 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:05,454 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:08:05,455 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:08:05,456 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:08:05,488 WARN L623 FunctionHandler]: Unknown extern function __skb_get_hash [2022-11-26 00:08:05,593 WARN L623 FunctionHandler]: Unknown extern function skb_flow_dissect [2022-11-26 00:08:05,629 WARN L623 FunctionHandler]: Unknown extern function skb_copy_ubufs [2022-11-26 00:08:05,664 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-26 00:08:05,677 WARN L623 FunctionHandler]: Unknown extern function nf_conntrack_destroy [2022-11-26 00:08:05,684 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:08:05,745 WARN L623 FunctionHandler]: Unknown extern function __put_net [2022-11-26 00:08:05,806 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:05,807 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:05,808 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:05,811 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:05,812 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:05,877 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_queue [2022-11-26 00:08:05,930 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:08:05,931 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:08:05,948 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:08:05,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,002 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,003 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,005 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,006 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,006 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:06,014 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,015 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,015 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,018 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:06,018 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:06,096 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-26 00:08:06,171 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,172 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,178 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,179 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,206 WARN L623 FunctionHandler]: Unknown extern function sk_free [2022-11-26 00:08:06,215 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1712 [2022-11-26 00:08:06,216 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,256 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,258 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,278 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_240 [2022-11-26 00:08:06,278 WARN L623 FunctionHandler]: Unknown extern function kfree_call_rcu [2022-11-26 00:08:06,303 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:06,313 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:06,335 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,337 WARN L623 FunctionHandler]: Unknown extern function in_egroup_p [2022-11-26 00:08:06,338 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-11-26 00:08:06,344 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-11-26 00:08:06,345 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-11-26 00:08:06,363 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-26 00:08:06,364 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-26 00:08:06,370 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,370 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,371 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,373 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,374 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,374 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,375 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-11-26 00:08:06,377 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:08:06,379 WARN L623 FunctionHandler]: Unknown extern function sk_release_kernel [2022-11-26 00:08:06,385 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:06,386 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:06,392 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,393 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,393 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,394 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:06,396 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:06,397 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-11-26 00:08:06,398 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,398 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,399 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,402 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-26 00:08:06,413 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach [2022-11-26 00:08:06,414 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,414 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,415 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,417 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-11-26 00:08:06,425 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,425 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,444 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:08:06,444 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:08:06,451 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:08:06,451 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:08:06,462 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:08:06,498 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,499 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,501 WARN L623 FunctionHandler]: Unknown extern function sk_filter [2022-11-26 00:08:06,502 WARN L623 FunctionHandler]: Unknown extern function sock_tx_timestamp [2022-11-26 00:08:06,503 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-26 00:08:06,504 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-26 00:08:06,504 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:06,505 WARN L623 FunctionHandler]: Unknown extern function skb_tx_error [2022-11-26 00:08:06,505 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,538 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:08:06,539 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:06,551 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-26 00:08:06,566 WARN L623 FunctionHandler]: Unknown extern function sock_alloc_send_pskb [2022-11-26 00:08:06,567 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:08:06,575 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-11-26 00:08:06,577 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-11-26 00:08:06,579 WARN L623 FunctionHandler]: Unknown extern function iov_pages [2022-11-26 00:08:06,581 WARN L623 FunctionHandler]: Unknown extern function zerocopy_sg_from_iovec [2022-11-26 00:08:06,582 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_from_iovec [2022-11-26 00:08:06,583 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,584 WARN L623 FunctionHandler]: Unknown extern function skb_partial_csum_set [2022-11-26 00:08:06,585 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,586 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,587 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:08:06,591 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 00:08:06,593 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,594 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,596 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-26 00:08:06,611 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:06,614 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,614 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-26 00:08:06,616 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:08:06,618 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:06,620 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-11-26 00:08:06,621 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:06,622 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-11-26 00:08:06,630 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-26 00:08:06,631 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-26 00:08:06,632 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 00:08:06,632 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:06,633 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-26 00:08:06,646 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-11-26 00:08:06,665 WARN L623 FunctionHandler]: Unknown extern function __wake_up_sync_key [2022-11-26 00:08:06,666 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-26 00:08:06,679 WARN L623 FunctionHandler]: Unknown extern function sock_recv_errqueue [2022-11-26 00:08:06,701 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:06,708 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,708 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-11-26 00:08:06,709 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:06,709 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:06,716 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,717 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-11-26 00:08:06,717 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:06,718 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:06,726 WARN L623 FunctionHandler]: Unknown extern function __dev_get_by_name [2022-11-26 00:08:06,729 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_open [2022-11-26 00:08:06,730 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-11-26 00:08:06,731 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_create [2022-11-26 00:08:06,734 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:08:06,735 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_alloc_security [2022-11-26 00:08:06,736 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:06,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,737 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:06,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,738 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:06,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,739 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:08:06,741 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-11-26 00:08:06,755 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-26 00:08:06,763 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,763 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,764 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,765 WARN L623 FunctionHandler]: Unknown extern function sk_detach_filter [2022-11-26 00:08:06,772 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,776 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,777 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,777 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-11-26 00:08:06,784 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,784 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,785 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,791 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:06,792 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach_queue [2022-11-26 00:08:06,793 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,793 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:06,794 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:06,796 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:06,803 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:06,804 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:06,812 WARN L623 FunctionHandler]: Unknown extern function __module_get [2022-11-26 00:08:06,814 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-26 00:08:06,814 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,815 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-11-26 00:08:06,815 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:06,816 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-11-26 00:08:06,818 WARN L623 FunctionHandler]: Unknown extern function dev_set_mac_address [2022-11-26 00:08:06,821 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:06,840 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-11-26 00:08:06,841 WARN L623 FunctionHandler]: Unknown extern function __f_setown [2022-11-26 00:08:06,848 WARN L623 FunctionHandler]: Unknown extern function sk_alloc [2022-11-26 00:08:06,852 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:08:06,853 WARN L623 FunctionHandler]: Unknown extern function sock_init_data [2022-11-26 00:08:06,866 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:06,867 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:06,867 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-26 00:08:06,881 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:06,884 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:06,891 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:06,892 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:06,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,909 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,911 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_register [2022-11-26 00:08:06,912 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:06,915 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-11-26 00:08:06,921 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-11-26 00:08:07,448 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,456 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,456 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,457 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,457 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,457 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,458 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,458 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,458 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,459 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,459 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,459 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,460 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,460 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,460 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,461 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,461 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,465 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,466 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,466 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,466 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,467 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,467 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,467 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,468 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,468 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,468 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:07,476 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-26 00:08:07,478 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:08:07,479 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:08:07,481 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:08:07,485 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:08:07,494 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-11-26 00:08:07,495 WARN L623 FunctionHandler]: Unknown extern function do_sync_read [2022-11-26 00:08:07,497 WARN L623 FunctionHandler]: Unknown extern function do_sync_write [2022-11-26 00:08:07,523 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:08:07,524 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:08:07,527 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:07,528 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:07,529 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:07,529 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:08:07,530 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:08:07,531 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-11-26 00:08:07,531 WARN L623 FunctionHandler]: Unknown extern function register_netdevice [2022-11-26 00:08:07,532 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:08:07,533 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:08:07,533 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:08:07,595 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:08:07,596 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:08:07,608 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:08:08,394 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-11-26 00:08:08,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-11-26 00:08:08,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-11-26 00:08:08,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-11-26 00:08:08,401 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,404 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,443 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,444 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,446 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:08,524 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:08:08,637 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:08:08,637 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 00:08:08,640 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,642 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,643 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,644 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-26 00:08:08,644 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-26 00:08:08,645 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-11-26 00:08:08,646 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-11-26 00:08:08,646 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,646 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:08,647 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-26 00:08:08,647 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-26 00:08:08,648 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,648 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:08,648 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,649 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,650 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-26 00:08:08,650 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:08,658 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:08,659 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:08:08,659 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:08:08,660 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:08:08,660 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:08,660 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:08:08,661 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:08:08,661 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:08:08,662 WARN L623 FunctionHandler]: Unknown extern function __skb_get_hash [2022-11-26 00:08:08,718 WARN L623 FunctionHandler]: Unknown extern function skb_flow_dissect [2022-11-26 00:08:08,727 WARN L623 FunctionHandler]: Unknown extern function skb_copy_ubufs [2022-11-26 00:08:08,728 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-26 00:08:08,729 WARN L623 FunctionHandler]: Unknown extern function nf_conntrack_destroy [2022-11-26 00:08:08,729 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:08:08,732 WARN L623 FunctionHandler]: Unknown extern function __put_net [2022-11-26 00:08:08,733 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,735 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:08,737 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_queue [2022-11-26 00:08:08,738 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:08:08,739 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:08:08,740 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:08:08,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:08,742 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,743 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,743 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,743 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,743 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:08,744 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,745 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,745 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,746 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:08:08,746 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:08:08,748 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-26 00:08:08,751 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,751 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,752 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,752 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,753 WARN L623 FunctionHandler]: Unknown extern function sk_free [2022-11-26 00:08:08,754 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1712 [2022-11-26 00:08:08,754 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,756 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,757 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,763 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_240 [2022-11-26 00:08:08,764 WARN L623 FunctionHandler]: Unknown extern function kfree_call_rcu [2022-11-26 00:08:08,768 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:08,770 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:08,773 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,774 WARN L623 FunctionHandler]: Unknown extern function in_egroup_p [2022-11-26 00:08:08,774 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-11-26 00:08:08,775 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-11-26 00:08:08,775 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-11-26 00:08:08,789 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-26 00:08:08,789 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-26 00:08:08,790 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,790 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:08,790 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,796 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,796 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:08,797 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,806 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-11-26 00:08:08,807 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:08:08,808 WARN L623 FunctionHandler]: Unknown extern function sk_release_kernel [2022-11-26 00:08:08,809 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:08,809 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:08,810 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,810 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:08,811 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,811 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:08,820 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:08,829 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-11-26 00:08:08,830 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,830 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:08,830 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,832 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-26 00:08:08,833 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach [2022-11-26 00:08:08,838 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,838 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:08,839 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,840 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-11-26 00:08:08,861 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,862 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,863 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:08:08,863 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:08:08,864 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:08:08,864 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:08:08,867 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:08:08,870 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,871 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:08,872 WARN L623 FunctionHandler]: Unknown extern function sk_filter [2022-11-26 00:08:08,877 WARN L623 FunctionHandler]: Unknown extern function sock_tx_timestamp [2022-11-26 00:08:08,881 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-26 00:08:08,882 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-26 00:08:08,882 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-26 00:08:08,883 WARN L623 FunctionHandler]: Unknown extern function skb_tx_error [2022-11-26 00:08:08,883 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,885 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:08:08,886 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-11-26 00:08:08,887 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-26 00:08:08,898 WARN L623 FunctionHandler]: Unknown extern function sock_alloc_send_pskb [2022-11-26 00:08:08,898 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:08:08,901 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-11-26 00:08:08,901 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-11-26 00:08:08,936 WARN L623 FunctionHandler]: Unknown extern function iov_pages [2022-11-26 00:08:08,937 WARN L623 FunctionHandler]: Unknown extern function zerocopy_sg_from_iovec [2022-11-26 00:08:08,938 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_from_iovec [2022-11-26 00:08:08,938 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,939 WARN L623 FunctionHandler]: Unknown extern function skb_partial_csum_set [2022-11-26 00:08:08,939 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,940 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,944 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:08:08,946 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-26 00:08:08,947 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,948 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,950 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-26 00:08:08,953 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:08,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:08,957 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-26 00:08:08,958 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:08:08,960 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:08,961 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-11-26 00:08:08,962 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-11-26 00:08:08,963 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-11-26 00:08:08,966 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-26 00:08:08,966 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-26 00:08:08,967 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-26 00:08:08,968 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 00:08:08,968 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-26 00:08:08,970 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-11-26 00:08:08,975 WARN L623 FunctionHandler]: Unknown extern function __wake_up_sync_key [2022-11-26 00:08:08,976 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-11-26 00:08:08,978 WARN L623 FunctionHandler]: Unknown extern function sock_recv_errqueue [2022-11-26 00:08:08,993 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:08,995 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,995 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-11-26 00:08:08,995 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:08,996 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:08,997 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:08,997 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-11-26 00:08:08,998 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:08,998 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:08:09,001 WARN L623 FunctionHandler]: Unknown extern function __dev_get_by_name [2022-11-26 00:08:09,006 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_open [2022-11-26 00:08:09,009 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-11-26 00:08:09,009 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_create [2022-11-26 00:08:09,014 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:08:09,015 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_alloc_security [2022-11-26 00:08:09,017 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:09,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,017 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:09,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,018 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:08:09,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,019 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:08:09,021 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-11-26 00:08:09,024 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-26 00:08:09,024 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,025 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:09,025 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:09,026 WARN L623 FunctionHandler]: Unknown extern function sk_detach_filter [2022-11-26 00:08:09,030 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,031 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:09,031 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:09,033 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-11-26 00:08:09,038 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,039 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:09,039 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:09,040 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:09,044 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach_queue [2022-11-26 00:08:09,045 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,045 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-11-26 00:08:09,046 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-26 00:08:09,053 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:09,055 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:08:09,056 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:09,060 WARN L623 FunctionHandler]: Unknown extern function __module_get [2022-11-26 00:08:09,061 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-26 00:08:09,061 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,061 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-11-26 00:08:09,062 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:08:09,062 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-11-26 00:08:09,064 WARN L623 FunctionHandler]: Unknown extern function dev_set_mac_address [2022-11-26 00:08:09,066 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:09,068 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-11-26 00:08:09,069 WARN L623 FunctionHandler]: Unknown extern function __f_setown [2022-11-26 00:08:09,069 WARN L623 FunctionHandler]: Unknown extern function sk_alloc [2022-11-26 00:08:09,080 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:08:09,081 WARN L623 FunctionHandler]: Unknown extern function sock_init_data [2022-11-26 00:08:09,086 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:08:09,088 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:08:09,089 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-26 00:08:09,090 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:09,091 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:09,092 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:09,093 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:08:09,094 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,094 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,095 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_register [2022-11-26 00:08:09,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:08:09,096 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-11-26 00:08:09,096 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-11-26 00:08:09,104 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,105 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,105 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,105 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,105 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,106 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,106 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,106 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,106 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,107 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,107 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,107 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,107 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,108 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,108 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,108 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,109 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,109 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,109 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,109 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,109 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,110 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,110 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,110 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,110 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,111 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,111 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,112 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-26 00:08:09,113 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:08:09,114 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:08:09,115 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:08:09,117 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:08:09,124 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-11-26 00:08:09,124 WARN L623 FunctionHandler]: Unknown extern function do_sync_read [2022-11-26 00:08:09,125 WARN L623 FunctionHandler]: Unknown extern function do_sync_write [2022-11-26 00:08:09,140 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:08:09,140 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:08:09,142 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:09,142 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:09,143 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:08:09,144 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:08:09,144 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:08:09,145 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-11-26 00:08:09,145 WARN L623 FunctionHandler]: Unknown extern function register_netdevice [2022-11-26 00:08:09,146 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:08:09,146 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:08:09,147 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:08:09,150 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:08:09,150 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:08:09,150 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:08:09,212 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-11-26 00:08:09,213 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-11-26 00:08:09,213 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-11-26 00:08:09,214 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-11-26 00:08:09,214 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,215 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,220 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,221 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,222 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:08:09,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:09,499 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:08:09,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09 WrapperNode [2022-11-26 00:08:09,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:09,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:09,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:08:09,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:08:09,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:09,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:09,954 INFO L138 Inliner]: procedures = 614, calls = 2621, calls flagged for inlining = 322, calls inlined = 255, statements flattened = 7227 [2022-11-26 00:08:09,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:09,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:08:09,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:08:09,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:08:10,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:08:10,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:08:10,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:08:10,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:08:10,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (1/1) ... [2022-11-26 00:08:10,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:10,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:10,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:08:10,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:08:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2022-11-26 00:08:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2022-11-26 00:08:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-26 00:08:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-26 00:08:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:08:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:08:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:08:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:08:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2022-11-26 00:08:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2022-11-26 00:08:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2022-11-26 00:08:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2022-11-26 00:08:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2022-11-26 00:08:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2022-11-26 00:08:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-26 00:08:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-26 00:08:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:08:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:08:10,446 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2022-11-26 00:08:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2022-11-26 00:08:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-26 00:08:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-26 00:08:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-26 00:08:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-26 00:08:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:08:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:08:10,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:08:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2022-11-26 00:08:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2022-11-26 00:08:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-26 00:08:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-26 00:08:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-11-26 00:08:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-11-26 00:08:10,448 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:08:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:08:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-26 00:08:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-26 00:08:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:08:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-26 00:08:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-26 00:08:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2022-11-26 00:08:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2022-11-26 00:08:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:08:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2022-11-26 00:08:10,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2022-11-26 00:08:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:08:10,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:08:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2022-11-26 00:08:10,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2022-11-26 00:08:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:08:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:08:10,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:08:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-11-26 00:08:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-11-26 00:08:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2022-11-26 00:08:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2022-11-26 00:08:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-26 00:08:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-26 00:08:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-26 00:08:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-26 00:08:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-26 00:08:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-26 00:08:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-26 00:08:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-26 00:08:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:08:10,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:08:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:08:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:08:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:08:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-26 00:08:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-26 00:08:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-26 00:08:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-26 00:08:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:08:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:08:10,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:08:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:08:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:08:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-11-26 00:08:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-11-26 00:08:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-26 00:08:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-26 00:08:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-26 00:08:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-26 00:08:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2022-11-26 00:08:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2022-11-26 00:08:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2022-11-26 00:08:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2022-11-26 00:08:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:08:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:08:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:08:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:08:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2022-11-26 00:08:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2022-11-26 00:08:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2022-11-26 00:08:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2022-11-26 00:08:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:08:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:08:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2022-11-26 00:08:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2022-11-26 00:08:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:08:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:08:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-11-26 00:08:10,459 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-11-26 00:08:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-26 00:08:10,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-26 00:08:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2022-11-26 00:08:10,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2022-11-26 00:08:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-26 00:08:10,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-26 00:08:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:08:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2022-11-26 00:08:10,460 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2022-11-26 00:08:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:08:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:08:10,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:08:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:08:10,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:08:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-26 00:08:10,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-26 00:08:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-26 00:08:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-26 00:08:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-26 00:08:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2022-11-26 00:08:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2022-11-26 00:08:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-26 00:08:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-26 00:08:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-26 00:08:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-26 00:08:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:08:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:08:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2022-11-26 00:08:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2022-11-26 00:08:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-26 00:08:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-26 00:08:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2022-11-26 00:08:10,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2022-11-26 00:08:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:08:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 00:08:10,464 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 00:08:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-26 00:08:10,464 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-26 00:08:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2022-11-26 00:08:10,464 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2022-11-26 00:08:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:08:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2022-11-26 00:08:10,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2022-11-26 00:08:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:08:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-26 00:08:10,465 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-26 00:08:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2022-11-26 00:08:10,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2022-11-26 00:08:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-26 00:08:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-26 00:08:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2022-11-26 00:08:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2022-11-26 00:08:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:08:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:08:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2022-11-26 00:08:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2022-11-26 00:08:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2022-11-26 00:08:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2022-11-26 00:08:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:08:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:08:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2022-11-26 00:08:10,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2022-11-26 00:08:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2022-11-26 00:08:10,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2022-11-26 00:08:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:08:10,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:08:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:08:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:08:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:08:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:08:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-26 00:08:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-26 00:08:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2022-11-26 00:08:10,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2022-11-26 00:08:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:08:10,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:08:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2022-11-26 00:08:10,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2022-11-26 00:08:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:08:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2022-11-26 00:08:10,470 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2022-11-26 00:08:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2022-11-26 00:08:10,471 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2022-11-26 00:08:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2022-11-26 00:08:10,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2022-11-26 00:08:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:08:10,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:08:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-26 00:08:10,471 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-26 00:08:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2022-11-26 00:08:10,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2022-11-26 00:08:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2022-11-26 00:08:10,472 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2022-11-26 00:08:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:08:10,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:08:10,472 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-26 00:08:10,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-26 00:08:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-26 00:08:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-26 00:08:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-26 00:08:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-26 00:08:10,473 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-26 00:08:10,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-26 00:08:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-26 00:08:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-26 00:08:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-26 00:08:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-26 00:08:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-26 00:08:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-26 00:08:10,474 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-26 00:08:10,474 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-26 00:08:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2022-11-26 00:08:10,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2022-11-26 00:08:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2022-11-26 00:08:10,475 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2022-11-26 00:08:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2022-11-26 00:08:10,475 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2022-11-26 00:08:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:08:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:08:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-26 00:08:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-26 00:08:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2022-11-26 00:08:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2022-11-26 00:08:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:08:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:08:10,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:08:11,663 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:08:11,669 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:08:12,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:08:17,216 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:08:17,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:08:19,755 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:08:19,756 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-26 00:08:19,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:19 BoogieIcfgContainer [2022-11-26 00:08:19,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:08:19,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:08:19,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:08:19,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:08:19,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:08:03" (1/3) ... [2022-11-26 00:08:19,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776de42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:19, skipping insertion in model container [2022-11-26 00:08:19,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:09" (2/3) ... [2022-11-26 00:08:19,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776de42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:19, skipping insertion in model container [2022-11-26 00:08:19,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:19" (3/3) ... [2022-11-26 00:08:19,776 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-11-26 00:08:19,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:08:19,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:08:19,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:08:19,914 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;@166f849f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:08:19,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:08:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 1539 states, 950 states have (on average 1.3642105263157895) internal successors, (1296), 986 states have internal predecessors, (1296), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) [2022-11-26 00:08:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-26 00:08:19,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:19,978 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:19,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 270858453, now seen corresponding path program 1 times [2022-11-26 00:08:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:19,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229897620] [2022-11-26 00:08:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:19,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-11-26 00:08:21,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:21,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229897620] [2022-11-26 00:08:21,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229897620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:21,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:21,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:08:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834933306] [2022-11-26 00:08:21,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:21,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:21,312 INFO L87 Difference]: Start difference. First operand has 1539 states, 950 states have (on average 1.3642105263157895) internal successors, (1296), 986 states have internal predecessors, (1296), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-26 00:08:23,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:26,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:27,282 INFO L93 Difference]: Finished difference Result 4457 states and 6606 transitions. [2022-11-26 00:08:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 291 [2022-11-26 00:08:27,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:27,406 INFO L225 Difference]: With dead ends: 4457 [2022-11-26 00:08:27,406 INFO L226 Difference]: Without dead ends: 2957 [2022-11-26 00:08:27,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:27,428 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 2120 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:27,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 4302 Invalid, 711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-26 00:08:27,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-11-26 00:08:27,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2927. [2022-11-26 00:08:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 1826 states have (on average 1.364184008762322) internal successors, (2491), 1901 states have internal predecessors, (2491), 893 states have call successors, (893), 207 states have call predecessors, (893), 205 states have return successors, (897), 881 states have call predecessors, (897), 889 states have call successors, (897) [2022-11-26 00:08:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4281 transitions. [2022-11-26 00:08:27,804 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4281 transitions. Word has length 291 [2022-11-26 00:08:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:27,808 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4281 transitions. [2022-11-26 00:08:27,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-26 00:08:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4281 transitions. [2022-11-26 00:08:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-26 00:08:27,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:27,823 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:27,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:08:27,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:27,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:27,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1449660449, now seen corresponding path program 1 times [2022-11-26 00:08:27,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:27,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705461037] [2022-11-26 00:08:27,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:27,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-11-26 00:08:28,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705461037] [2022-11-26 00:08:28,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705461037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:28,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:28,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:08:28,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739479464] [2022-11-26 00:08:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:28,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:28,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:28,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:28,462 INFO L87 Difference]: Start difference. First operand 2927 states and 4281 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-26 00:08:32,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:34,344 INFO L93 Difference]: Finished difference Result 8559 states and 12508 transitions. [2022-11-26 00:08:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2022-11-26 00:08:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:34,382 INFO L225 Difference]: With dead ends: 8559 [2022-11-26 00:08:34,382 INFO L226 Difference]: Without dead ends: 5687 [2022-11-26 00:08:34,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:34,397 INFO L413 NwaCegarLoop]: 2282 mSDtfsCounter, 2048 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 4110 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:34,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 4110 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:08:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2022-11-26 00:08:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5683. [2022-11-26 00:08:34,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5683 states, 3574 states have (on average 1.3651371012870732) internal successors, (4879), 3714 states have internal predecessors, (4879), 1699 states have call successors, (1699), 410 states have call predecessors, (1699), 407 states have return successors, (1711), 1682 states have call predecessors, (1711), 1695 states have call successors, (1711) [2022-11-26 00:08:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5683 states to 5683 states and 8289 transitions. [2022-11-26 00:08:34,736 INFO L78 Accepts]: Start accepts. Automaton has 5683 states and 8289 transitions. Word has length 293 [2022-11-26 00:08:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:34,738 INFO L495 AbstractCegarLoop]: Abstraction has 5683 states and 8289 transitions. [2022-11-26 00:08:34,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-26 00:08:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5683 states and 8289 transitions. [2022-11-26 00:08:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-26 00:08:34,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:34,746 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:34,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:08:34,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:34,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1124327333, now seen corresponding path program 1 times [2022-11-26 00:08:34,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:34,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16192172] [2022-11-26 00:08:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2022-11-26 00:08:35,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:35,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16192172] [2022-11-26 00:08:35,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16192172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:35,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:35,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:08:35,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341436631] [2022-11-26 00:08:35,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:35,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:08:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:08:35,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:35,235 INFO L87 Difference]: Start difference. First operand 5683 states and 8289 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-26 00:08:38,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:40,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:41,753 INFO L93 Difference]: Finished difference Result 11199 states and 16271 transitions. [2022-11-26 00:08:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:08:41,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 317 [2022-11-26 00:08:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:41,788 INFO L225 Difference]: With dead ends: 11199 [2022-11-26 00:08:41,788 INFO L226 Difference]: Without dead ends: 5571 [2022-11-26 00:08:41,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:08:41,818 INFO L413 NwaCegarLoop]: 2115 mSDtfsCounter, 1025 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:41,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3941 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:08:41,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2022-11-26 00:08:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 5541. [2022-11-26 00:08:42,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 3516 states have (on average 1.3552332195676906) internal successors, (4765), 3643 states have internal predecessors, (4765), 1605 states have call successors, (1605), 421 states have call predecessors, (1605), 417 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-11-26 00:08:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 7983 transitions. [2022-11-26 00:08:42,132 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 7983 transitions. Word has length 317 [2022-11-26 00:08:42,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:42,137 INFO L495 AbstractCegarLoop]: Abstraction has 5541 states and 7983 transitions. [2022-11-26 00:08:42,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-26 00:08:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 7983 transitions. [2022-11-26 00:08:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-26 00:08:42,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:42,147 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:42,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:08:42,147 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1788083357, now seen corresponding path program 1 times [2022-11-26 00:08:42,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:42,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891626908] [2022-11-26 00:08:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2022-11-26 00:08:42,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:42,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891626908] [2022-11-26 00:08:42,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891626908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:42,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:42,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:08:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747219685] [2022-11-26 00:08:42,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:42,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:42,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:42,985 INFO L87 Difference]: Start difference. First operand 5541 states and 7983 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-26 00:08:46,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:48,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:08:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:50,708 INFO L93 Difference]: Finished difference Result 5547 states and 7988 transitions. [2022-11-26 00:08:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:50,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 329 [2022-11-26 00:08:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:50,742 INFO L225 Difference]: With dead ends: 5547 [2022-11-26 00:08:50,742 INFO L226 Difference]: Without dead ends: 5545 [2022-11-26 00:08:50,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:08:50,751 INFO L413 NwaCegarLoop]: 1868 mSDtfsCounter, 2137 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:50,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 5588 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 00:08:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5545 states. [2022-11-26 00:08:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5545 to 5545. [2022-11-26 00:08:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 3519 states have (on average 1.3549303779482809) internal successors, (4768), 3646 states have internal predecessors, (4768), 1605 states have call successors, (1605), 422 states have call predecessors, (1605), 418 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-11-26 00:08:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 7986 transitions. [2022-11-26 00:08:51,084 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 7986 transitions. Word has length 329 [2022-11-26 00:08:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:51,085 INFO L495 AbstractCegarLoop]: Abstraction has 5545 states and 7986 transitions. [2022-11-26 00:08:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-26 00:08:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 7986 transitions. [2022-11-26 00:08:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-26 00:08:51,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:51,095 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:51,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:08:51,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:51,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2022764139, now seen corresponding path program 1 times [2022-11-26 00:08:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:51,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884936184] [2022-11-26 00:08:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2022-11-26 00:08:51,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:51,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884936184] [2022-11-26 00:08:51,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884936184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:51,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:51,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:08:51,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217163895] [2022-11-26 00:08:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:51,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:51,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:51,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:51,994 INFO L87 Difference]: Start difference. First operand 5545 states and 7986 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-26 00:08:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:08:57,978 INFO L93 Difference]: Finished difference Result 5551 states and 7991 transitions. [2022-11-26 00:08:57,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:08:57,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 334 [2022-11-26 00:08:57,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:08:58,012 INFO L225 Difference]: With dead ends: 5551 [2022-11-26 00:08:58,013 INFO L226 Difference]: Without dead ends: 5549 [2022-11-26 00:08:58,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:08:58,018 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:08:58,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-26 00:08:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-11-26 00:08:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 5549. [2022-11-26 00:08:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 3522 states have (on average 1.3546280522430438) internal successors, (4771), 3649 states have internal predecessors, (4771), 1605 states have call successors, (1605), 423 states have call predecessors, (1605), 419 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-11-26 00:08:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 7989 transitions. [2022-11-26 00:08:58,360 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 7989 transitions. Word has length 334 [2022-11-26 00:08:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:08:58,362 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 7989 transitions. [2022-11-26 00:08:58,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-26 00:08:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 7989 transitions. [2022-11-26 00:08:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-26 00:08:58,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:08:58,369 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:08:58,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:08:58,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:08:58,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:08:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1738933533, now seen corresponding path program 1 times [2022-11-26 00:08:58,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:08:58,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422232921] [2022-11-26 00:08:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:08:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2022-11-26 00:08:59,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:59,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422232921] [2022-11-26 00:08:59,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422232921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:08:59,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:08:59,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:08:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455683006] [2022-11-26 00:08:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:08:59,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:08:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:08:59,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:08:59,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:08:59,111 INFO L87 Difference]: Start difference. First operand 5549 states and 7989 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-26 00:09:03,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:05,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:05,437 INFO L93 Difference]: Finished difference Result 5555 states and 7994 transitions. [2022-11-26 00:09:05,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:05,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 339 [2022-11-26 00:09:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:05,488 INFO L225 Difference]: With dead ends: 5555 [2022-11-26 00:09:05,488 INFO L226 Difference]: Without dead ends: 5553 [2022-11-26 00:09:05,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:05,494 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:05,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:09:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2022-11-26 00:09:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 5553. [2022-11-26 00:09:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 3525 states have (on average 1.3543262411347519) internal successors, (4774), 3652 states have internal predecessors, (4774), 1605 states have call successors, (1605), 424 states have call predecessors, (1605), 420 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-11-26 00:09:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 7992 transitions. [2022-11-26 00:09:05,848 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 7992 transitions. Word has length 339 [2022-11-26 00:09:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:05,849 INFO L495 AbstractCegarLoop]: Abstraction has 5553 states and 7992 transitions. [2022-11-26 00:09:05,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-26 00:09:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 7992 transitions. [2022-11-26 00:09:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-26 00:09:05,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:05,855 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:05,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:09:05,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1479173483, now seen corresponding path program 1 times [2022-11-26 00:09:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:05,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852450091] [2022-11-26 00:09:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3008 trivial. 0 not checked. [2022-11-26 00:09:06,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:06,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852450091] [2022-11-26 00:09:06,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852450091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:06,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:06,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168935430] [2022-11-26 00:09:06,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:06,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:06,564 INFO L87 Difference]: Start difference. First operand 5553 states and 7992 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-26 00:09:10,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:13,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:13,040 INFO L93 Difference]: Finished difference Result 5934 states and 8417 transitions. [2022-11-26 00:09:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:13,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 344 [2022-11-26 00:09:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:13,068 INFO L225 Difference]: With dead ends: 5934 [2022-11-26 00:09:13,069 INFO L226 Difference]: Without dead ends: 5932 [2022-11-26 00:09:13,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:13,074 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 1981 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:13,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 6145 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1165 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:09:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2022-11-26 00:09:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5928. [2022-11-26 00:09:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 3743 states have (on average 1.345711995725354) internal successors, (5037), 3884 states have internal predecessors, (5037), 1682 states have call successors, (1682), 502 states have call predecessors, (1682), 500 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-11-26 00:09:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8413 transitions. [2022-11-26 00:09:13,535 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8413 transitions. Word has length 344 [2022-11-26 00:09:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:13,535 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 8413 transitions. [2022-11-26 00:09:13,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-26 00:09:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8413 transitions. [2022-11-26 00:09:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-11-26 00:09:13,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:13,543 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:13,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:09:13,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1889082781, now seen corresponding path program 1 times [2022-11-26 00:09:13,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:13,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327229320] [2022-11-26 00:09:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3028 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-11-26 00:09:14,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:14,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327229320] [2022-11-26 00:09:14,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327229320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:14,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:14,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:14,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142011346] [2022-11-26 00:09:14,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:14,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:14,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:14,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:14,339 INFO L87 Difference]: Start difference. First operand 5928 states and 8413 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-26 00:09:18,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:20,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:22,198 INFO L93 Difference]: Finished difference Result 5934 states and 8418 transitions. [2022-11-26 00:09:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:22,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 349 [2022-11-26 00:09:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:22,222 INFO L225 Difference]: With dead ends: 5934 [2022-11-26 00:09:22,222 INFO L226 Difference]: Without dead ends: 5932 [2022-11-26 00:09:22,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:22,226 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:22,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-26 00:09:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2022-11-26 00:09:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5932. [2022-11-26 00:09:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5932 states, 3746 states have (on average 1.3454351308061934) internal successors, (5040), 3887 states have internal predecessors, (5040), 1682 states have call successors, (1682), 503 states have call predecessors, (1682), 501 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-11-26 00:09:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 8416 transitions. [2022-11-26 00:09:22,642 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 8416 transitions. Word has length 349 [2022-11-26 00:09:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:22,643 INFO L495 AbstractCegarLoop]: Abstraction has 5932 states and 8416 transitions. [2022-11-26 00:09:22,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-26 00:09:22,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 8416 transitions. [2022-11-26 00:09:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-26 00:09:22,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:22,651 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:22,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:09:22,652 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1106457493, now seen corresponding path program 1 times [2022-11-26 00:09:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:22,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78839876] [2022-11-26 00:09:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3036 trivial. 0 not checked. [2022-11-26 00:09:23,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:23,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78839876] [2022-11-26 00:09:23,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78839876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:23,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:23,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:23,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827698238] [2022-11-26 00:09:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:23,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:23,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:23,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:23,434 INFO L87 Difference]: Start difference. First operand 5932 states and 8416 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-26 00:09:30,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:30,068 INFO L93 Difference]: Finished difference Result 5938 states and 8421 transitions. [2022-11-26 00:09:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:30,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 354 [2022-11-26 00:09:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:30,094 INFO L225 Difference]: With dead ends: 5938 [2022-11-26 00:09:30,094 INFO L226 Difference]: Without dead ends: 5936 [2022-11-26 00:09:30,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:30,099 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:30,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2141 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-26 00:09:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-11-26 00:09:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5936. [2022-11-26 00:09:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 3749 states have (on average 1.3451587089890638) internal successors, (5043), 3890 states have internal predecessors, (5043), 1682 states have call successors, (1682), 504 states have call predecessors, (1682), 502 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-11-26 00:09:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 8419 transitions. [2022-11-26 00:09:30,535 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 8419 transitions. Word has length 354 [2022-11-26 00:09:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:30,536 INFO L495 AbstractCegarLoop]: Abstraction has 5936 states and 8419 transitions. [2022-11-26 00:09:30,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-26 00:09:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 8419 transitions. [2022-11-26 00:09:30,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-11-26 00:09:30,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:30,544 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 7, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:09:30,545 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash -40911977, now seen corresponding path program 1 times [2022-11-26 00:09:30,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:30,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352717602] [2022-11-26 00:09:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3058 trivial. 0 not checked. [2022-11-26 00:09:31,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352717602] [2022-11-26 00:09:31,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352717602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:31,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:31,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543598338] [2022-11-26 00:09:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:31,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:31,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:31,205 INFO L87 Difference]: Start difference. First operand 5936 states and 8419 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:09:34,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:36,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:38,389 INFO L93 Difference]: Finished difference Result 5942 states and 8424 transitions. [2022-11-26 00:09:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:38,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 364 [2022-11-26 00:09:38,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:38,411 INFO L225 Difference]: With dead ends: 5942 [2022-11-26 00:09:38,411 INFO L226 Difference]: Without dead ends: 5940 [2022-11-26 00:09:38,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:38,415 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:38,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 00:09:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2022-11-26 00:09:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5940. [2022-11-26 00:09:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 3752 states have (on average 1.3448827292110874) internal successors, (5046), 3893 states have internal predecessors, (5046), 1682 states have call successors, (1682), 505 states have call predecessors, (1682), 503 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-11-26 00:09:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 8422 transitions. [2022-11-26 00:09:38,770 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 8422 transitions. Word has length 364 [2022-11-26 00:09:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:38,771 INFO L495 AbstractCegarLoop]: Abstraction has 5940 states and 8422 transitions. [2022-11-26 00:09:38,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:09:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 8422 transitions. [2022-11-26 00:09:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-11-26 00:09:38,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:38,780 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 8, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:38,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:09:38,780 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:38,781 INFO L85 PathProgramCache]: Analyzing trace with hash -674487445, now seen corresponding path program 1 times [2022-11-26 00:09:38,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:38,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781121719] [2022-11-26 00:09:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:38,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3094 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2022-11-26 00:09:39,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781121719] [2022-11-26 00:09:39,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781121719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:39,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:39,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856719287] [2022-11-26 00:09:39,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:39,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:39,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:39,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:39,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:39,490 INFO L87 Difference]: Start difference. First operand 5940 states and 8422 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-26 00:09:46,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:47,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:47,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:47,622 INFO L93 Difference]: Finished difference Result 6331 states and 8885 transitions. [2022-11-26 00:09:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:09:47,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 364 [2022-11-26 00:09:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:47,650 INFO L225 Difference]: With dead ends: 6331 [2022-11-26 00:09:47,650 INFO L226 Difference]: Without dead ends: 6329 [2022-11-26 00:09:47,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:09:47,655 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 2029 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:47,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 5860 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1121 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-26 00:09:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2022-11-26 00:09:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 6329. [2022-11-26 00:09:48,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 3989 states have (on average 1.3374279267986964) internal successors, (5335), 4138 states have internal predecessors, (5335), 1768 states have call successors, (1768), 571 states have call predecessors, (1768), 569 states have return successors, (1780), 1743 states have call predecessors, (1780), 1764 states have call successors, (1780) [2022-11-26 00:09:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 8883 transitions. [2022-11-26 00:09:48,242 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 8883 transitions. Word has length 364 [2022-11-26 00:09:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:48,243 INFO L495 AbstractCegarLoop]: Abstraction has 6329 states and 8883 transitions. [2022-11-26 00:09:48,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-26 00:09:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 8883 transitions. [2022-11-26 00:09:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-26 00:09:48,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:48,252 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:48,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:09:48,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1542392123, now seen corresponding path program 1 times [2022-11-26 00:09:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:48,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224561077] [2022-11-26 00:09:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-11-26 00:09:48,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224561077] [2022-11-26 00:09:48,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224561077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:48,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:48,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:09:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754132365] [2022-11-26 00:09:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:09:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:48,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:09:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:48,632 INFO L87 Difference]: Start difference. First operand 6329 states and 8883 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 00:09:54,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:09:54,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:09:54,540 INFO L93 Difference]: Finished difference Result 12771 states and 17927 transitions. [2022-11-26 00:09:54,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:09:54,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 369 [2022-11-26 00:09:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:09:54,574 INFO L225 Difference]: With dead ends: 12771 [2022-11-26 00:09:54,574 INFO L226 Difference]: Without dead ends: 7854 [2022-11-26 00:09:54,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:09:54,595 INFO L413 NwaCegarLoop]: 2714 mSDtfsCounter, 1023 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:09:54,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 4531 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:09:54,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2022-11-26 00:09:55,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7792. [2022-11-26 00:09:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7792 states, 4923 states have (on average 1.3384115376802763) internal successors, (6589), 5105 states have internal predecessors, (6589), 2170 states have call successors, (2170), 700 states have call predecessors, (2170), 696 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:09:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7792 states to 7792 states and 10943 transitions. [2022-11-26 00:09:55,306 INFO L78 Accepts]: Start accepts. Automaton has 7792 states and 10943 transitions. Word has length 369 [2022-11-26 00:09:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:09:55,306 INFO L495 AbstractCegarLoop]: Abstraction has 7792 states and 10943 transitions. [2022-11-26 00:09:55,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 00:09:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7792 states and 10943 transitions. [2022-11-26 00:09:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-26 00:09:55,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:09:55,313 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 9, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:09:55,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:09:55,314 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:09:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:09:55,314 INFO L85 PathProgramCache]: Analyzing trace with hash -959283555, now seen corresponding path program 1 times [2022-11-26 00:09:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:09:55,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411941359] [2022-11-26 00:09:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:09:55,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:09:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:09:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2022-11-26 00:09:55,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:09:55,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411941359] [2022-11-26 00:09:55,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411941359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:09:55,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:09:55,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:09:55,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66136493] [2022-11-26 00:09:55,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:09:55,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:09:55,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:09:55,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:09:55,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:09:55,935 INFO L87 Difference]: Start difference. First operand 7792 states and 10943 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-26 00:10:00,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:01,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:03,204 INFO L93 Difference]: Finished difference Result 7798 states and 10948 transitions. [2022-11-26 00:10:03,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:10:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 369 [2022-11-26 00:10:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:03,238 INFO L225 Difference]: With dead ends: 7798 [2022-11-26 00:10:03,238 INFO L226 Difference]: Without dead ends: 7796 [2022-11-26 00:10:03,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:03,245 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:03,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-26 00:10:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-11-26 00:10:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7796. [2022-11-26 00:10:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 4926 states have (on average 1.3382054405196915) internal successors, (6592), 5108 states have internal predecessors, (6592), 2170 states have call successors, (2170), 701 states have call predecessors, (2170), 697 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:10:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 10946 transitions. [2022-11-26 00:10:04,019 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 10946 transitions. Word has length 369 [2022-11-26 00:10:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:04,020 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 10946 transitions. [2022-11-26 00:10:04,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-26 00:10:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 10946 transitions. [2022-11-26 00:10:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-11-26 00:10:04,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:04,028 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 10, 9, 9, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:04,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:10:04,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash -823062095, now seen corresponding path program 1 times [2022-11-26 00:10:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:04,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143641865] [2022-11-26 00:10:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:04,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3142 trivial. 0 not checked. [2022-11-26 00:10:04,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:04,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143641865] [2022-11-26 00:10:04,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143641865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:04,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:04,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:10:04,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870060742] [2022-11-26 00:10:04,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:04,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:10:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:04,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:10:04,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:10:04,693 INFO L87 Difference]: Start difference. First operand 7796 states and 10946 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:10:10,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:12,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:13,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:13,535 INFO L93 Difference]: Finished difference Result 7802 states and 10951 transitions. [2022-11-26 00:10:13,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:10:13,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 379 [2022-11-26 00:10:13,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:13,610 INFO L225 Difference]: With dead ends: 7802 [2022-11-26 00:10:13,610 INFO L226 Difference]: Without dead ends: 7800 [2022-11-26 00:10:13,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:13,613 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:13,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-26 00:10:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7800 states. [2022-11-26 00:10:14,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7800 to 7800. [2022-11-26 00:10:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7800 states, 4929 states have (on average 1.3379995942381822) internal successors, (6595), 5111 states have internal predecessors, (6595), 2170 states have call successors, (2170), 702 states have call predecessors, (2170), 698 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:10:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7800 states to 7800 states and 10949 transitions. [2022-11-26 00:10:14,377 INFO L78 Accepts]: Start accepts. Automaton has 7800 states and 10949 transitions. Word has length 379 [2022-11-26 00:10:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:14,377 INFO L495 AbstractCegarLoop]: Abstraction has 7800 states and 10949 transitions. [2022-11-26 00:10:14,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:10:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7800 states and 10949 transitions. [2022-11-26 00:10:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-26 00:10:14,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:14,385 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:14,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:10:14,386 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1220042534, now seen corresponding path program 1 times [2022-11-26 00:10:14,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:14,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622131716] [2022-11-26 00:10:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:14,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3179 trivial. 0 not checked. [2022-11-26 00:10:15,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:15,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622131716] [2022-11-26 00:10:15,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622131716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:15,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:15,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:10:15,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814488333] [2022-11-26 00:10:15,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:15,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:10:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:10:15,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:10:15,140 INFO L87 Difference]: Start difference. First operand 7800 states and 10949 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-26 00:10:20,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:22,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:24,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:24,901 INFO L93 Difference]: Finished difference Result 7806 states and 10954 transitions. [2022-11-26 00:10:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:10:24,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 385 [2022-11-26 00:10:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:24,930 INFO L225 Difference]: With dead ends: 7806 [2022-11-26 00:10:24,930 INFO L226 Difference]: Without dead ends: 7804 [2022-11-26 00:10:24,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:24,936 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:24,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-26 00:10:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7804 states. [2022-11-26 00:10:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7804 to 7804. [2022-11-26 00:10:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7804 states, 4932 states have (on average 1.3377939983779399) internal successors, (6598), 5114 states have internal predecessors, (6598), 2170 states have call successors, (2170), 703 states have call predecessors, (2170), 699 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:10:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7804 states to 7804 states and 10952 transitions. [2022-11-26 00:10:25,771 INFO L78 Accepts]: Start accepts. Automaton has 7804 states and 10952 transitions. Word has length 385 [2022-11-26 00:10:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:25,771 INFO L495 AbstractCegarLoop]: Abstraction has 7804 states and 10952 transitions. [2022-11-26 00:10:25,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-26 00:10:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 7804 states and 10952 transitions. [2022-11-26 00:10:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-26 00:10:25,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:25,779 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 12, 11, 11, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:10:25,780 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1152751311, now seen corresponding path program 1 times [2022-11-26 00:10:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965721215] [2022-11-26 00:10:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3218 trivial. 0 not checked. [2022-11-26 00:10:26,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:26,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965721215] [2022-11-26 00:10:26,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965721215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:26,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:26,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:10:26,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488780803] [2022-11-26 00:10:26,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:26,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:10:26,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:10:26,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:10:26,419 INFO L87 Difference]: Start difference. First operand 7804 states and 10952 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:10:32,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:33,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:33,884 INFO L93 Difference]: Finished difference Result 7810 states and 10957 transitions. [2022-11-26 00:10:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:10:33,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 389 [2022-11-26 00:10:33,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:33,905 INFO L225 Difference]: With dead ends: 7810 [2022-11-26 00:10:33,905 INFO L226 Difference]: Without dead ends: 7808 [2022-11-26 00:10:33,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:33,908 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:33,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 00:10:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-11-26 00:10:34,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7808. [2022-11-26 00:10:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 4935 states have (on average 1.3375886524822695) internal successors, (6601), 5117 states have internal predecessors, (6601), 2170 states have call successors, (2170), 704 states have call predecessors, (2170), 700 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:10:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 10955 transitions. [2022-11-26 00:10:34,687 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 10955 transitions. Word has length 389 [2022-11-26 00:10:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:34,688 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 10955 transitions. [2022-11-26 00:10:34,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:10:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 10955 transitions. [2022-11-26 00:10:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-26 00:10:34,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:34,699 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 13, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:34,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:10:34,699 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2002772067, now seen corresponding path program 1 times [2022-11-26 00:10:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:34,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748430893] [2022-11-26 00:10:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:34,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3260 trivial. 0 not checked. [2022-11-26 00:10:35,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:35,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748430893] [2022-11-26 00:10:35,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748430893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:35,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:35,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:10:35,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583203140] [2022-11-26 00:10:35,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:35,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:10:35,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:10:35,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:10:35,275 INFO L87 Difference]: Start difference. First operand 7808 states and 10955 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:10:41,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:41,869 INFO L93 Difference]: Finished difference Result 7818 states and 10962 transitions. [2022-11-26 00:10:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:10:41,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 389 [2022-11-26 00:10:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:41,894 INFO L225 Difference]: With dead ends: 7818 [2022-11-26 00:10:41,894 INFO L226 Difference]: Without dead ends: 7816 [2022-11-26 00:10:41,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:10:41,899 INFO L413 NwaCegarLoop]: 1934 mSDtfsCounter, 1981 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 6118 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:41,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 6118 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-26 00:10:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7816 states. [2022-11-26 00:10:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7816 to 7812. [2022-11-26 00:10:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7812 states, 4938 states have (on average 1.3373835560955853) internal successors, (6604), 5120 states have internal predecessors, (6604), 2170 states have call successors, (2170), 705 states have call predecessors, (2170), 701 states have return successors, (2184), 2134 states have call predecessors, (2184), 2166 states have call successors, (2184) [2022-11-26 00:10:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 10958 transitions. [2022-11-26 00:10:42,823 INFO L78 Accepts]: Start accepts. Automaton has 7812 states and 10958 transitions. Word has length 389 [2022-11-26 00:10:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:42,824 INFO L495 AbstractCegarLoop]: Abstraction has 7812 states and 10958 transitions. [2022-11-26 00:10:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:10:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7812 states and 10958 transitions. [2022-11-26 00:10:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-26 00:10:42,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:42,832 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 28, 28, 28, 28, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:42,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:10:42,833 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1616682341, now seen corresponding path program 1 times [2022-11-26 00:10:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:42,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059105648] [2022-11-26 00:10:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:42,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2022-11-26 00:10:43,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:43,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059105648] [2022-11-26 00:10:43,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059105648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:43,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:43,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:10:43,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866672935] [2022-11-26 00:10:43,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:43,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:10:43,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:43,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:10:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:43,239 INFO L87 Difference]: Start difference. First operand 7812 states and 10958 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 00:10:48,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:10:50,690 INFO L93 Difference]: Finished difference Result 18952 states and 26552 transitions. [2022-11-26 00:10:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:10:50,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 405 [2022-11-26 00:10:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:10:50,722 INFO L225 Difference]: With dead ends: 18952 [2022-11-26 00:10:50,722 INFO L226 Difference]: Without dead ends: 11195 [2022-11-26 00:10:50,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:10:50,750 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 2031 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 4477 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:10:50,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 4477 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:10:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11195 states. [2022-11-26 00:10:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11195 to 11103. [2022-11-26 00:10:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11103 states, 7023 states have (on average 1.3388865157340168) internal successors, (9403), 7313 states have internal predecessors, (9403), 3045 states have call successors, (3045), 1039 states have call predecessors, (3045), 1032 states have return successors, (3068), 2966 states have call predecessors, (3068), 3041 states have call successors, (3068) [2022-11-26 00:10:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11103 states to 11103 states and 15516 transitions. [2022-11-26 00:10:52,004 INFO L78 Accepts]: Start accepts. Automaton has 11103 states and 15516 transitions. Word has length 405 [2022-11-26 00:10:52,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:10:52,005 INFO L495 AbstractCegarLoop]: Abstraction has 11103 states and 15516 transitions. [2022-11-26 00:10:52,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 00:10:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 11103 states and 15516 transitions. [2022-11-26 00:10:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-26 00:10:52,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:10:52,010 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 14, 13, 13, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:10:52,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:10:52,010 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:10:52,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:10:52,011 INFO L85 PathProgramCache]: Analyzing trace with hash 435032241, now seen corresponding path program 1 times [2022-11-26 00:10:52,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:10:52,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833004960] [2022-11-26 00:10:52,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:10:52,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:10:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:10:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3310 trivial. 0 not checked. [2022-11-26 00:10:52,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:10:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833004960] [2022-11-26 00:10:52,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833004960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:10:52,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:10:52,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:10:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965076103] [2022-11-26 00:10:52,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:10:52,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:10:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:10:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:10:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:10:52,625 INFO L87 Difference]: Start difference. First operand 11103 states and 15516 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-26 00:10:58,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:10:59,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:01,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:11:02,083 INFO L93 Difference]: Finished difference Result 11109 states and 15521 transitions. [2022-11-26 00:11:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:11:02,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 399 [2022-11-26 00:11:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:11:02,128 INFO L225 Difference]: With dead ends: 11109 [2022-11-26 00:11:02,128 INFO L226 Difference]: Without dead ends: 11105 [2022-11-26 00:11:02,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:11:02,135 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:11:02,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-26 00:11:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2022-11-26 00:11:03,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 11105. [2022-11-26 00:11:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11105 states, 7025 states have (on average 1.3386476868327402) internal successors, (9404), 7314 states have internal predecessors, (9404), 3045 states have call successors, (3045), 1040 states have call predecessors, (3045), 1032 states have return successors, (3068), 2966 states have call predecessors, (3068), 3041 states have call successors, (3068) [2022-11-26 00:11:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11105 states to 11105 states and 15517 transitions. [2022-11-26 00:11:03,245 INFO L78 Accepts]: Start accepts. Automaton has 11105 states and 15517 transitions. Word has length 399 [2022-11-26 00:11:03,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:11:03,245 INFO L495 AbstractCegarLoop]: Abstraction has 11105 states and 15517 transitions. [2022-11-26 00:11:03,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-26 00:11:03,245 INFO L276 IsEmpty]: Start isEmpty. Operand 11105 states and 15517 transitions. [2022-11-26 00:11:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-26 00:11:03,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:03,250 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 15, 14, 14, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:03,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:11:03,251 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:11:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1590115930, now seen corresponding path program 1 times [2022-11-26 00:11:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:03,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889117869] [2022-11-26 00:11:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3391 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2022-11-26 00:11:03,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889117869] [2022-11-26 00:11:03,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889117869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:11:03,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:11:03,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:11:03,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439458742] [2022-11-26 00:11:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:11:03,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:11:03,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:11:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:11:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:11:03,918 INFO L87 Difference]: Start difference. First operand 11105 states and 15517 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 00:11:09,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:11,086 WARN L539 Checker$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 00:11:12,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:11:12,845 INFO L93 Difference]: Finished difference Result 11105 states and 15517 transitions. [2022-11-26 00:11:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:11:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 405 [2022-11-26 00:11:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:11:12,877 INFO L225 Difference]: With dead ends: 11105 [2022-11-26 00:11:12,877 INFO L226 Difference]: Without dead ends: 10919 [2022-11-26 00:11:12,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:11:12,882 INFO L413 NwaCegarLoop]: 1869 mSDtfsCounter, 2127 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:11:12,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 5588 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:11:12,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2022-11-26 00:11:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 10919. [2022-11-26 00:11:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 6956 states have (on average 1.3368315123634273) internal successors, (9299), 7209 states have internal predecessors, (9299), 2951 states have call successors, (2951), 1008 states have call predecessors, (2951), 1010 states have return successors, (2978), 2917 states have call predecessors, (2978), 2951 states have call successors, (2978) [2022-11-26 00:11:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 15228 transitions. [2022-11-26 00:11:13,953 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 15228 transitions. Word has length 405 [2022-11-26 00:11:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:11:13,953 INFO L495 AbstractCegarLoop]: Abstraction has 10919 states and 15228 transitions. [2022-11-26 00:11:13,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 00:11:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 15228 transitions. [2022-11-26 00:11:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-26 00:11:13,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:13,964 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:11:13,964 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:11:13,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2075223031, now seen corresponding path program 1 times [2022-11-26 00:11:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206473281] [2022-11-26 00:11:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-11-26 00:11:15,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:15,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206473281] [2022-11-26 00:11:15,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206473281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:11:15,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:11:15,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:11:15,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419403863] [2022-11-26 00:11:15,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:11:15,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:11:15,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:11:15,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:11:15,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:11:15,014 INFO L87 Difference]: Start difference. First operand 10919 states and 15228 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 00:11:20,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:22,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:24,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:11:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:11:25,438 INFO L93 Difference]: Finished difference Result 10919 states and 15228 transitions. [2022-11-26 00:11:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:11:25,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 461 [2022-11-26 00:11:25,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:11:25,477 INFO L225 Difference]: With dead ends: 10919 [2022-11-26 00:11:25,478 INFO L226 Difference]: Without dead ends: 10917 [2022-11-26 00:11:25,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:11:25,484 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 1933 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:11:25,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 5708 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1094 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-26 00:11:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2022-11-26 00:11:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 10917. [2022-11-26 00:11:26,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10917 states, 6955 states have (on average 1.3351545650611072) internal successors, (9286), 7207 states have internal predecessors, (9286), 2951 states have call successors, (2951), 1008 states have call predecessors, (2951), 1010 states have return successors, (2978), 2917 states have call predecessors, (2978), 2951 states have call successors, (2978) [2022-11-26 00:11:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10917 states to 10917 states and 15215 transitions. [2022-11-26 00:11:26,478 INFO L78 Accepts]: Start accepts. Automaton has 10917 states and 15215 transitions. Word has length 461 [2022-11-26 00:11:26,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:11:26,479 INFO L495 AbstractCegarLoop]: Abstraction has 10917 states and 15215 transitions. [2022-11-26 00:11:26,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 00:11:26,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10917 states and 15215 transitions. [2022-11-26 00:11:26,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-26 00:11:26,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:26,489 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:26,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:11:26,490 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:11:26,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1755768851, now seen corresponding path program 1 times [2022-11-26 00:11:26,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:26,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430268576] [2022-11-26 00:11:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3569 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-11-26 00:11:26,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:26,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430268576] [2022-11-26 00:11:26,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430268576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:11:26,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:11:26,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:11:26,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933252960] [2022-11-26 00:11:26,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:11:26,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:11:26,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:11:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:11:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:11:26,981 INFO L87 Difference]: Start difference. First operand 10917 states and 15215 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-26 00:11:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:11:32,569 INFO L93 Difference]: Finished difference Result 21611 states and 30143 transitions. [2022-11-26 00:11:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:11:32,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 476 [2022-11-26 00:11:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:11:32,605 INFO L225 Difference]: With dead ends: 21611 [2022-11-26 00:11:32,606 INFO L226 Difference]: Without dead ends: 10937 [2022-11-26 00:11:32,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:11:32,628 INFO L413 NwaCegarLoop]: 1815 mSDtfsCounter, 5 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:11:32,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3626 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:11:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10937 states. [2022-11-26 00:11:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10937 to 10921. [2022-11-26 00:11:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10921 states, 6959 states have (on average 1.3349619198160656) internal successors, (9290), 7211 states have internal predecessors, (9290), 2951 states have call successors, (2951), 1008 states have call predecessors, (2951), 1010 states have return successors, (2978), 2917 states have call predecessors, (2978), 2951 states have call successors, (2978) [2022-11-26 00:11:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10921 states to 10921 states and 15219 transitions. [2022-11-26 00:11:33,570 INFO L78 Accepts]: Start accepts. Automaton has 10921 states and 15219 transitions. Word has length 476 [2022-11-26 00:11:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:11:33,571 INFO L495 AbstractCegarLoop]: Abstraction has 10921 states and 15219 transitions. [2022-11-26 00:11:33,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-26 00:11:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 10921 states and 15219 transitions. [2022-11-26 00:11:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-11-26 00:11:33,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:33,583 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:33,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:11:33,584 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:11:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:33,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1450174438, now seen corresponding path program 1 times [2022-11-26 00:11:33,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:33,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488105217] [2022-11-26 00:11:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:33,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-11-26 00:11:34,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:34,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488105217] [2022-11-26 00:11:34,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488105217] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:11:34,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956210324] [2022-11-26 00:11:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:34,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:11:34,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:11:34,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:11:34,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0daf7232-9b2f-4f98-9f31-b37cbb1faf58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:11:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:35,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 4426 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:11:35,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:11:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-11-26 00:11:35,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:11:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-11-26 00:11:36,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956210324] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:11:36,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1424140528] [2022-11-26 00:11:36,150 INFO L159 IcfgInterpreter]: Started Sifa with 179 locations of interest [2022-11-26 00:11:36,150 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:11:36,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:11:36,162 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:11:36,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs