./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_fs-nfs-blocklayout-blocklayoutdriver.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/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_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/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_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/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 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:35:34,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:35:34,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:35:34,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:35:34,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:35:34,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:35:34,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:35:34,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:35:34,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:35:34,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:35:34,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:35:34,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:35:34,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:35:34,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:35:34,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:35:34,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:35:34,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:35:34,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:35:34,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:35:34,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:35:34,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:35:34,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:35:34,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:35:34,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:35:34,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:35:34,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:35:34,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:35:34,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:35:34,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:35:34,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:35:34,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:35:34,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:35:34,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:35:34,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:35:34,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:35:34,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:35:34,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:35:34,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:35:34,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:35:34,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:35:34,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:35:34,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:35:34,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:35:34,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:35:34,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:35:34,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:35:34,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:35:34,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:35:34,699 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:35:34,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:35:34,700 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:35:34,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:35:34,701 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:35:34,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:35:34,702 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:35:34,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:35:34,702 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:35:34,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:35:34,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:35:34,703 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:35:34,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:35:34,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:35:34,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:35:34,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:35:34,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:35:34,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:35:34,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:35:34,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:35:34,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:35:34,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:35:34,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:35:34,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:34,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:35:34,708 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:35:34,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:35:34,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:35:34,709 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:35:34,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:35:34,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:35:34,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:35:34,710 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_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2022-11-25 22:35:35,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:35:35,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:35:35,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:35:35,169 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:35:35,169 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:35:35,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-25 22:35:38,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:35:39,757 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:35:39,758 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-25 22:35:39,857 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/data/68245c6a4/44a80df532ae4435b99ae9a746471362/FLAG97031d23b [2022-11-25 22:35:39,913 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/data/68245c6a4/44a80df532ae4435b99ae9a746471362 [2022-11-25 22:35:39,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:35:39,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:35:39,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:39,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:35:39,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:35:39,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:39" (1/1) ... [2022-11-25 22:35:39,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a4911a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:39, skipping insertion in model container [2022-11-25 22:35:39,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:35:39" (1/1) ... [2022-11-25 22:35:39,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:35:40,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:35:41,056 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:35:41,208 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:41,307 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 22:35:41,475 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:41,486 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:41,534 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:35:41,562 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:35:41,632 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-11-25 22:35:41,641 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-11-25 22:35:41,659 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:41,660 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:41,662 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-25 22:35:41,663 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 22:35:41,675 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:41,676 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:41,677 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:41,690 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:41,691 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:41,693 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:41,725 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:35:41,753 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 22:35:41,785 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:35:41,798 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:35:41,985 WARN L623 FunctionHandler]: Unknown extern function test_set_page_writeback [2022-11-25 22:35:42,045 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_206 [2022-11-25 22:35:42,080 WARN L623 FunctionHandler]: Unknown extern function bio_alloc_bioset [2022-11-25 22:35:42,152 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 22:35:42,153 WARN L623 FunctionHandler]: Unknown extern function __lock_page [2022-11-25 22:35:42,169 WARN L623 FunctionHandler]: Unknown extern function wait_on_page_bit [2022-11-25 22:35:42,331 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:42,513 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:42,514 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:42,525 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:42,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,647 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,652 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,702 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,703 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:42,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,722 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 22:35:42,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,746 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-11-25 22:35:42,766 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:42,766 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:42,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,775 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_read_done [2022-11-25 22:35:42,784 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:35:42,786 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:35:42,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,831 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:42,832 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:42,834 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:42,834 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:42,844 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:42,845 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:42,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,859 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_write_done [2022-11-25 22:35:42,870 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:35:42,872 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:35:42,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,900 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:42,917 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,920 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-11-25 22:35:42,921 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:42,921 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:42,922 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 22:35:42,924 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_535 [2022-11-25 22:35:42,924 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_536 [2022-11-25 22:35:42,925 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:42,925 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:42,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,936 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:42,946 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,947 WARN L623 FunctionHandler]: Unknown extern function alloc_page_buffers [2022-11-25 22:35:42,948 WARN L623 FunctionHandler]: Unknown extern function bh_uptodate_or_lock [2022-11-25 22:35:42,949 WARN L623 FunctionHandler]: Unknown extern function bh_submit_read [2022-11-25 22:35:42,950 WARN L623 FunctionHandler]: Unknown extern function free_buffer_head [2022-11-25 22:35:42,958 WARN L623 FunctionHandler]: Unknown extern function find_get_page [2022-11-25 22:35:42,959 WARN L623 FunctionHandler]: Unknown extern function find_or_create_page [2022-11-25 22:35:42,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,962 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:42,963 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:42,964 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:42,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,977 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:42,995 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:42,997 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:42,998 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:43,000 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:43,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,012 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,016 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,024 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,036 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:43,046 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:43,046 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,048 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:43,048 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,058 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,067 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:43,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,077 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,087 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,114 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:43,115 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,126 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,127 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,130 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-11-25 22:35:43,131 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,132 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:43,133 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,133 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,142 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,145 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:43,146 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdevicelist [2022-11-25 22:35:43,147 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,149 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:43,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,177 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-11-25 22:35:43,178 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-11-25 22:35:43,182 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-11-25 22:35:43,193 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-11-25 22:35:43,201 WARN L623 FunctionHandler]: Unknown extern function radix_tree_next_hole [2022-11-25 22:35:43,210 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-11-25 22:35:43,212 WARN L623 FunctionHandler]: Unknown extern function nfs_dreq_bytes_left [2022-11-25 22:35:43,213 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_write [2022-11-25 22:35:43,223 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-11-25 22:35:43,233 WARN L623 FunctionHandler]: Unknown extern function rpc_d_lookup_sb [2022-11-25 22:35:43,234 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_dentry [2022-11-25 22:35:43,242 WARN L623 FunctionHandler]: Unknown extern function dput [2022-11-25 22:35:43,250 WARN L623 FunctionHandler]: Unknown extern function rpc_unlink [2022-11-25 22:35:43,259 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 22:35:43,260 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 22:35:43,262 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 22:35:43,270 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-11-25 22:35:43,272 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-11-25 22:35:43,280 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-11-25 22:35:43,280 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-11-25 22:35:43,289 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:35:43,289 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_data [2022-11-25 22:35:43,297 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-11-25 22:35:43,305 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-11-25 22:35:43,314 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,315 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-11-25 22:35:43,316 WARN L623 FunctionHandler]: Unknown extern function register_pernet_subsys [2022-11-25 22:35:43,316 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-11-25 22:35:43,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:43,327 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_subsys [2022-11-25 22:35:43,328 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-11-25 22:35:43,853 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,855 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,857 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,857 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,858 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,858 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,859 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,859 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,859 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,860 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,860 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,860 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,861 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,861 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,862 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,862 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,863 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,863 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,863 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,864 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,864 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,864 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,865 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,865 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,866 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,866 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,866 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,867 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,867 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,868 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,868 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,868 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,869 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,869 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:43,875 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-11-25 22:35:43,879 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-11-25 22:35:43,883 WARN L623 FunctionHandler]: Unknown extern function rpc_pipe_generic_upcall [2022-11-25 22:35:43,888 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:35:43,910 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_register [2022-11-25 22:35:43,911 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-11-25 22:35:43,912 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-11-25 22:35:43,919 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:35:43,943 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:35:43,951 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:35:44,028 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 22:35:44,050 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 22:35:44,156 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,201 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,201 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,251 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,264 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,287 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,297 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,297 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,300 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,301 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,310 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,325 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,336 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,337 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,354 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,356 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,373 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,375 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,375 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,379 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,380 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,381 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,383 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,385 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,404 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-11-25 22:35:44,411 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-11-25 22:35:44,414 WARN L623 FunctionHandler]: Unknown extern function xdr_encode_opaque_fixed [2022-11-25 22:35:44,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,435 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,435 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,451 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,452 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,452 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,456 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,456 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,456 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,460 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,585 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:35:44,586 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:35:44,586 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:35:44,587 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 22:35:44,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,653 WARN L623 FunctionHandler]: Unknown extern function blkdev_put [2022-11-25 22:35:44,657 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:35:44,666 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:35:44,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,676 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 22:35:44,676 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-11-25 22:35:44,676 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:44,677 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:35:44,678 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 22:35:44,678 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:44,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,680 WARN L623 FunctionHandler]: Unknown extern function blkdev_get_by_dev [2022-11-25 22:35:44,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,683 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,684 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,694 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:35:44,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,709 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-11-25 22:35:44,710 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-11-25 22:35:44,710 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-11-25 22:35:44,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,712 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-11-25 22:35:44,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,718 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,719 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,720 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:44,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,722 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:44,731 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:44,740 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:44,763 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:44,764 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:44,764 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:44,772 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:44,773 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:44,773 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:44,782 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:44,782 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:44,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,794 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 22:35:44,794 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-11-25 22:35:44,795 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:44,795 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:35:44,796 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 22:35:44,796 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:44,796 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:44,807 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:44,884 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:35:44,884 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:35:44,900 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:35:45,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-11-25 22:35:45,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-11-25 22:35:45,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-11-25 22:35:45,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-11-25 22:35:45,923 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,924 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,942 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,942 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,943 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,943 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,944 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,945 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,945 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:45,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:45,966 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:35:46,148 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:35:46,151 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:46,152 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 22:35:46,153 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:46,154 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:46,155 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:35:46,155 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:35:46,156 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-11-25 22:35:46,156 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-11-25 22:35:46,157 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,157 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:46,158 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-11-25 22:35:46,158 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 22:35:46,159 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,159 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:46,159 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,160 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,160 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:46,161 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,162 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:35:46,162 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 22:35:46,163 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:35:46,164 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:35:46,168 WARN L623 FunctionHandler]: Unknown extern function test_set_page_writeback [2022-11-25 22:35:46,170 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_206 [2022-11-25 22:35:46,170 WARN L623 FunctionHandler]: Unknown extern function bio_alloc_bioset [2022-11-25 22:35:46,171 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 22:35:46,172 WARN L623 FunctionHandler]: Unknown extern function __lock_page [2022-11-25 22:35:46,172 WARN L623 FunctionHandler]: Unknown extern function wait_on_page_bit [2022-11-25 22:35:46,173 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,178 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,179 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,181 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:46,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,187 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,187 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,189 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,189 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,193 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,196 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 22:35:46,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,200 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-11-25 22:35:46,204 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:46,205 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:46,206 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,206 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_read_done [2022-11-25 22:35:46,207 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:35:46,208 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:35:46,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,221 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:46,222 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:46,224 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:46,224 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:46,225 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-11-25 22:35:46,226 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:46,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,228 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_write_done [2022-11-25 22:35:46,229 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:35:46,229 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:35:46,230 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,231 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,233 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:46,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,236 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-11-25 22:35:46,237 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:46,237 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:46,237 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 22:35:46,238 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_535 [2022-11-25 22:35:46,239 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_536 [2022-11-25 22:35:46,239 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:46,239 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 22:35:46,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,242 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:46,243 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,244 WARN L623 FunctionHandler]: Unknown extern function alloc_page_buffers [2022-11-25 22:35:46,245 WARN L623 FunctionHandler]: Unknown extern function bh_uptodate_or_lock [2022-11-25 22:35:46,245 WARN L623 FunctionHandler]: Unknown extern function bh_submit_read [2022-11-25 22:35:46,245 WARN L623 FunctionHandler]: Unknown extern function free_buffer_head [2022-11-25 22:35:46,246 WARN L623 FunctionHandler]: Unknown extern function find_get_page [2022-11-25 22:35:46,247 WARN L623 FunctionHandler]: Unknown extern function find_or_create_page [2022-11-25 22:35:46,247 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,248 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:46,248 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:46,249 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-11-25 22:35:46,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,254 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,259 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:46,259 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:46,260 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-11-25 22:35:46,260 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-11-25 22:35:46,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,266 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,269 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,271 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,272 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,273 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,273 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,274 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,275 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,275 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,277 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:46,278 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,279 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,279 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,280 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,281 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,283 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,284 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,285 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,288 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,290 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-11-25 22:35:46,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,291 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:46,292 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,292 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,295 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:35:46,296 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdevicelist [2022-11-25 22:35:46,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,298 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,298 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,301 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-11-25 22:35:46,301 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-11-25 22:35:46,302 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-11-25 22:35:46,303 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-11-25 22:35:46,304 WARN L623 FunctionHandler]: Unknown extern function radix_tree_next_hole [2022-11-25 22:35:46,305 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-11-25 22:35:46,306 WARN L623 FunctionHandler]: Unknown extern function nfs_dreq_bytes_left [2022-11-25 22:35:46,306 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_write [2022-11-25 22:35:46,307 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-11-25 22:35:46,309 WARN L623 FunctionHandler]: Unknown extern function rpc_d_lookup_sb [2022-11-25 22:35:46,310 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_dentry [2022-11-25 22:35:46,311 WARN L623 FunctionHandler]: Unknown extern function dput [2022-11-25 22:35:46,311 WARN L623 FunctionHandler]: Unknown extern function rpc_unlink [2022-11-25 22:35:46,312 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 22:35:46,313 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 22:35:46,314 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 22:35:46,315 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-11-25 22:35:46,316 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-11-25 22:35:46,316 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-11-25 22:35:46,317 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-11-25 22:35:46,317 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:35:46,318 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_data [2022-11-25 22:35:46,319 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-11-25 22:35:46,320 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-11-25 22:35:46,320 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,321 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-11-25 22:35:46,321 WARN L623 FunctionHandler]: Unknown extern function register_pernet_subsys [2022-11-25 22:35:46,322 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-11-25 22:35:46,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,323 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_subsys [2022-11-25 22:35:46,323 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-11-25 22:35:46,329 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,330 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,330 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,330 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,330 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,331 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,331 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,331 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,332 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,332 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,332 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,333 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,333 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,333 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,333 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,334 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,334 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,334 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,335 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,335 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,335 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,335 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,336 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,336 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,336 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,337 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,337 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,337 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,337 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,338 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,338 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,338 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,339 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,339 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,341 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-11-25 22:35:46,343 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-11-25 22:35:46,344 WARN L623 FunctionHandler]: Unknown extern function rpc_pipe_generic_upcall [2022-11-25 22:35:46,347 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:35:46,406 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_register [2022-11-25 22:35:46,407 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-11-25 22:35:46,407 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-11-25 22:35:46,407 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:35:46,408 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:35:46,408 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 22:35:46,409 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 22:35:46,410 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 22:35:46,412 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,416 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,423 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,423 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,425 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,429 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,431 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,432 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,433 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,433 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,438 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,440 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,440 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,441 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,442 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,443 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,443 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,446 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,454 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,458 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,463 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,465 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,466 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,468 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,473 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,477 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-11-25 22:35:46,478 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-11-25 22:35:46,478 WARN L623 FunctionHandler]: Unknown extern function xdr_encode_opaque_fixed [2022-11-25 22:35:46,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,482 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,484 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,488 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,489 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,489 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,490 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,491 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,491 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,492 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,494 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,494 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,498 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:35:46,498 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:35:46,499 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:35:46,499 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 22:35:46,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,502 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,502 WARN L623 FunctionHandler]: Unknown extern function blkdev_put [2022-11-25 22:35:46,504 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:35:46,504 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:35:46,506 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,510 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 22:35:46,510 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-11-25 22:35:46,510 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:46,511 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:35:46,511 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 22:35:46,511 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:46,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,513 WARN L623 FunctionHandler]: Unknown extern function blkdev_get_by_dev [2022-11-25 22:35:46,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,515 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,516 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,517 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:35:46,518 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,523 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,523 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-11-25 22:35:46,524 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-11-25 22:35:46,524 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-11-25 22:35:46,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,525 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-11-25 22:35:46,527 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,533 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,534 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:35:46,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,535 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 22:35:46,536 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:46,537 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:35:46,538 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,538 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:46,538 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,539 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,539 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-11-25 22:35:46,540 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,541 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 22:35:46,541 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-11-25 22:35:46,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,547 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 22:35:46,548 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-11-25 22:35:46,548 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:46,549 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:35:46,549 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 22:35:46,549 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 22:35:46,550 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,552 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:35:46,552 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:35:46,556 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:35:46,556 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:35:46,557 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:35:46,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-11-25 22:35:46,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-11-25 22:35:46,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-11-25 22:35:46,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-11-25 22:35:46,597 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,597 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,598 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,598 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,599 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,599 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,605 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,605 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,605 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:35:46,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:35:46,881 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:35:46,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46 WrapperNode [2022-11-25 22:35:46,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:35:46,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:46,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:35:46,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:35:46,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,367 INFO L138 Inliner]: procedures = 584, calls = 2495, calls flagged for inlining = 241, calls inlined = 220, statements flattened = 7033 [2022-11-25 22:35:47,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:35:47,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:35:47,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:35:47,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:35:47,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:35:47,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:35:47,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:35:47,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:35:47,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (1/1) ... [2022-11-25 22:35:47,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:35:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:47,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:35:47,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:35:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2022-11-25 22:35:47,940 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2022-11-25 22:35:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-25 22:35:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-25 22:35:47,940 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-25 22:35:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:35:47,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:35:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_commitlist [2022-11-25 22:35:47,941 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_commitlist [2022-11-25 22:35:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_put_sb_net [2022-11-25 22:35:47,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_put_sb_net [2022-11-25 22:35:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-25 22:35:47,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-25 22:35:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-25 22:35:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-25 22:35:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_pagelist [2022-11-25 22:35:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_pagelist [2022-11-25 22:35:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:35:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:35:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure bio_alloc [2022-11-25 22:35:47,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_alloc [2022-11-25 22:35:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:35:47,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:35:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_unregister_layoutdriver [2022-11-25 22:35:47,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_unregister_layoutdriver [2022-11-25 22:35:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure trylock_page [2022-11-25 22:35:47,943 INFO L138 BoogieDeclarations]: Found implementation of procedure trylock_page [2022-11-25 22:35:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-25 22:35:47,943 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-25 22:35:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LSEG2EXT [2022-11-25 22:35:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LSEG2EXT [2022-11-25 22:35:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_unregister_sb [2022-11-25 22:35:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_unregister_sb [2022-11-25 22:35:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 22:35:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 22:35:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-11-25 22:35:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-11-25 22:35:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 22:35:47,944 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 22:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-11-25 22:35:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-11-25 22:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LO2EXT [2022-11-25 22:35:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LO2EXT [2022-11-25 22:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-25 22:35:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-25 22:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:35:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:35:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure print_page [2022-11-25 22:35:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure print_page [2022-11-25 22:35:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-25 22:35:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:35:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:35:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure PageWriteback [2022-11-25 22:35:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure PageWriteback [2022-11-25 22:35:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:35:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2022-11-25 22:35:47,947 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2022-11-25 22:35:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure print_clist [2022-11-25 22:35:47,948 INFO L138 BoogieDeclarations]: Found implementation of procedure print_clist [2022-11-25 22:35:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 22:35:47,948 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 22:35:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 22:35:47,948 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 22:35:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segments [2022-11-25 22:35:47,948 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segments [2022-11-25 22:35:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 22:35:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 22:35:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-25 22:35:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-25 22:35:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:35:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 22:35:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 22:35:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_layout_hdr [2022-11-25 22:35:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_layout_hdr [2022-11-25 22:35:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure PageDirty [2022-11-25 22:35:47,950 INFO L138 BoogieDeclarations]: Found implementation of procedure PageDirty [2022-11-25 22:35:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 22:35:47,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 22:35:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure is_writable [2022-11-25 22:35:47,950 INFO L138 BoogieDeclarations]: Found implementation of procedure is_writable [2022-11-25 22:35:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:35:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:35:47,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:35:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure normalize [2022-11-25 22:35:47,951 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize [2022-11-25 22:35:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-25 22:35:47,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-25 22:35:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:35:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-25 22:35:47,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-25 22:35:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_net_exit [2022-11-25 22:35:47,952 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_net_exit [2022-11-25 22:35:47,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:35:47,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:35:47,952 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_get_sb_net [2022-11-25 22:35:47,952 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_get_sb_net [2022-11-25 22:35:47,952 INFO L130 BoogieDeclarations]: Found specification of procedure extents_consistent [2022-11-25 22:35:47,952 INFO L138 BoogieDeclarations]: Found implementation of procedure extents_consistent [2022-11-25 22:35:47,952 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-25 22:35:47,953 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-25 22:35:47,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister [2022-11-25 22:35:47,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister [2022-11-25 22:35:47,953 INFO L130 BoogieDeclarations]: Found specification of procedure bl_submit_bio [2022-11-25 22:35:47,953 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_submit_bio [2022-11-25 22:35:47,953 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-25 22:35:47,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-25 22:35:47,953 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_queue_upcall [2022-11-25 22:35:47,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_queue_upcall [2022-11-25 22:35:47,954 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-25 22:35:47,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-25 22:35:47,954 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-25 22:35:47,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-25 22:35:47,954 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2022-11-25 22:35:47,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2022-11-25 22:35:47,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 22:35:47,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 22:35:47,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:35:47,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 22:35:47,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 22:35:47,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 22:35:47,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 22:35:47,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 22:35:47,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 22:35:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-25 22:35:47,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-25 22:35:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:35:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-11-25 22:35:47,957 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-11-25 22:35:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:35:47,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:35:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:35:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2022-11-25 22:35:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2022-11-25 22:35:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 22:35:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_lseg [2022-11-25 22:35:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_lseg [2022-11-25 22:35:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:35:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:35:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2022-11-25 22:35:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2022-11-25 22:35:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure end_page_writeback [2022-11-25 22:35:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure end_page_writeback [2022-11-25 22:35:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure print_elist [2022-11-25 22:35:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure print_elist [2022-11-25 22:35:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-25 22:35:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-25 22:35:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-25 22:35:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-25 22:35:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 22:35:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 22:35:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 22:35:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 22:35:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2022-11-25 22:35:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2022-11-25 22:35:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure PageLocked [2022-11-25 22:35:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure PageLocked [2022-11-25 22:35:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_test [2022-11-25 22:35:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_test [2022-11-25 22:35:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_destroy_pipe_data [2022-11-25 22:35:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_destroy_pipe_data [2022-11-25 22:35:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_parallel [2022-11-25 22:35:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_parallel [2022-11-25 22:35:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 22:35:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 22:35:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure bl_is_sector_init [2022-11-25 22:35:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_is_sector_init [2022-11-25 22:35:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:35:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:35:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 22:35:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 22:35:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-25 22:35:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-25 22:35:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-25 22:35:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-25 22:35:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-25 22:35:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-25 22:35:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-11-25 22:35:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-11-25 22:35:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure bl_clear_layoutdriver [2022-11-25 22:35:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_clear_layoutdriver [2022-11-25 22:35:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:35:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:35:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:35:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:35:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pipe_destroy_msg [2022-11-25 22:35:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pipe_destroy_msg [2022-11-25 22:35:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_pagelist [2022-11-25 22:35:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_pagelist [2022-11-25 22:35:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:35:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:35:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 22:35:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 22:35:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure print_bl_extent [2022-11-25 22:35:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure print_bl_extent [2022-11-25 22:35:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2022-11-25 22:35:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2022-11-25 22:35:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-11-25 22:35:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-11-25 22:35:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_encode_hyper [2022-11-25 22:35:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_encode_hyper [2022-11-25 22:35:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2022-11-25 22:35:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2022-11-25 22:35:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 22:35:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 22:35:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure bl_mark_sectors_init [2022-11-25 22:35:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_mark_sectors_init [2022-11-25 22:35:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:35:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:35:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure free_blk_mountid [2022-11-25 22:35:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure free_blk_mountid [2022-11-25 22:35:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-25 22:35:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-25 22:35:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure is_range_written [2022-11-25 22:35:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure is_range_written [2022-11-25 22:35:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-25 22:35:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-25 22:35:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:35:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 22:35:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 22:35:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_replace [2022-11-25 22:35:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure list_replace [2022-11-25 22:35:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-25 22:35:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-25 22:35:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:35:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-25 22:35:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-25 22:35:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-25 22:35:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-25 22:35:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure is_aligned_req [2022-11-25 22:35:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure is_aligned_req [2022-11-25 22:35:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-25 22:35:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-25 22:35:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure _prep_new_extent [2022-11-25 22:35:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _prep_new_extent [2022-11-25 22:35:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-25 22:35:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-25 22:35:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:35:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure print_short_extent [2022-11-25 22:35:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure print_short_extent [2022-11-25 22:35:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-11-25 22:35:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-11-25 22:35:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_reserve_space [2022-11-25 22:35:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_reserve_space [2022-11-25 22:35:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 22:35:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 22:35:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_notifier_unregister [2022-11-25 22:35:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_notifier_unregister [2022-11-25 22:35:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-11-25 22:35:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-11-25 22:35:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-11-25 22:35:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-11-25 22:35:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure bl_push_one_short_extent [2022-11-25 22:35:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_push_one_short_extent [2022-11-25 22:35:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:35:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:35:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 22:35:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 22:35:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 22:35:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 22:35:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-25 22:35:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-25 22:35:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-25 22:35:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-25 22:35:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-11-25 22:35:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-11-25 22:35:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure _set_range [2022-11-25 22:35:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_range [2022-11-25 22:35:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure bl_encode_layoutcommit [2022-11-25 22:35:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_encode_layoutcommit [2022-11-25 22:35:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2022-11-25 22:35:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2022-11-25 22:35:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-11-25 22:35:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-11-25 22:35:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure _add_entry [2022-11-25 22:35:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure _add_entry [2022-11-25 22:35:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2022-11-25 22:35:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2022-11-25 22:35:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure do_add_page_to_bio [2022-11-25 22:35:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure do_add_page_to_bio [2022-11-25 22:35:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 22:35:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 22:35:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-25 22:35:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-25 22:35:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-25 22:35:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-25 22:35:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-25 22:35:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-25 22:35:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2022-11-25 22:35:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2022-11-25 22:35:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_lseg [2022-11-25 22:35:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_lseg [2022-11-25 22:35:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:35:47,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:35:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:35:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-11-25 22:35:47,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-11-25 22:35:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_register_sb [2022-11-25 22:35:47,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_register_sb [2022-11-25 22:35:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:35:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-25 22:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-25 22:35:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-11-25 22:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-11-25 22:35:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-25 22:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-25 22:35:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segment [2022-11-25 22:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segment [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-11-25 22:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-11-25 22:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure decode_sector_number [2022-11-25 22:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_sector_number [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_partial_page_sync [2022-11-25 22:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_partial_page_sync [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2022-11-25 22:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2022-11-25 22:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-25 22:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_init_read [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_init_read [2022-11-25 22:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2022-11-25 22:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-25 22:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-25 22:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-25 22:35:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure bio_add_page [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_add_page [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-11-25 22:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:35:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure bl_do_readpage_sync [2022-11-25 22:35:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_do_readpage_sync [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 22:35:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure bl_set_layoutdriver [2022-11-25 22:35:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_set_layoutdriver [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2022-11-25 22:35:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_up [2022-11-25 22:35:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_up [2022-11-25 22:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 22:35:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-25 22:35:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-25 22:35:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 22:35:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_set_lo_fail [2022-11-25 22:35:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_set_lo_fail [2022-11-25 22:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2022-11-25 22:35:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2022-11-25 22:35:49,571 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:35:49,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:35:49,961 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:35:58,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 22:35:58,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:36:01,721 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:36:01,722 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-25 22:36:01,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:01 BoogieIcfgContainer [2022-11-25 22:36:01,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:36:01,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:36:01,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:36:01,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:36:01,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:35:39" (1/3) ... [2022-11-25 22:36:01,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7089ea3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:01, skipping insertion in model container [2022-11-25 22:36:01,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:35:46" (2/3) ... [2022-11-25 22:36:01,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7089ea3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:01, skipping insertion in model container [2022-11-25 22:36:01,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:01" (3/3) ... [2022-11-25 22:36:01,745 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-25 22:36:01,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:36:01,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 22:36:01,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:36:01,926 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;@5cff4205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:36:01,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 22:36:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 2392 states, 1371 states have (on average 1.2895696571845368) internal successors, (1768), 1420 states have internal predecessors, (1768), 848 states have call successors, (848), 173 states have call predecessors, (848), 172 states have return successors, (841), 826 states have call predecessors, (841), 841 states have call successors, (841) [2022-11-25 22:36:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-11-25 22:36:01,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:01,978 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:01,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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)] === [2022-11-25 22:36:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2131710606, now seen corresponding path program 1 times [2022-11-25 22:36:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:01,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087772119] [2022-11-25 22:36:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-11-25 22:36:03,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087772119] [2022-11-25 22:36:03,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087772119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:03,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:03,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:03,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532398022] [2022-11-25 22:36:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:03,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:03,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:03,440 INFO L87 Difference]: Start difference. First operand has 2392 states, 1371 states have (on average 1.2895696571845368) internal successors, (1768), 1420 states have internal predecessors, (1768), 848 states have call successors, (848), 173 states have call predecessors, (848), 172 states have return successors, (841), 826 states have call predecessors, (841), 841 states have call successors, (841) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 22:36:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:07,110 INFO L93 Difference]: Finished difference Result 6902 states and 10251 transitions. [2022-11-25 22:36:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:07,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 365 [2022-11-25 22:36:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:07,187 INFO L225 Difference]: With dead ends: 6902 [2022-11-25 22:36:07,188 INFO L226 Difference]: Without dead ends: 4568 [2022-11-25 22:36:07,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:07,229 INFO L413 NwaCegarLoop]: 3736 mSDtfsCounter, 3196 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 6659 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:07,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 6659 Invalid, 912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 22:36:07,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2022-11-25 22:36:07,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4564. [2022-11-25 22:36:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 2636 states have (on average 1.2830045523520486) internal successors, (3382), 2737 states have internal predecessors, (3382), 1586 states have call successors, (1586), 340 states have call predecessors, (1586), 339 states have return successors, (1582), 1552 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-11-25 22:36:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6550 transitions. [2022-11-25 22:36:07,832 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6550 transitions. Word has length 365 [2022-11-25 22:36:07,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:07,834 INFO L495 AbstractCegarLoop]: Abstraction has 4564 states and 6550 transitions. [2022-11-25 22:36:07,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 22:36:07,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6550 transitions. [2022-11-25 22:36:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-25 22:36:07,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:07,847 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:07,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:36:07,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-11-25 22:36:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash -11641626, now seen corresponding path program 1 times [2022-11-25 22:36:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:07,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61447612] [2022-11-25 22:36:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-11-25 22:36:08,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:08,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61447612] [2022-11-25 22:36:08,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61447612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:08,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:08,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:08,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597051334] [2022-11-25 22:36:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:08,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:08,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:08,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:08,584 INFO L87 Difference]: Start difference. First operand 4564 states and 6550 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 22:36:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:11,819 INFO L93 Difference]: Finished difference Result 11250 states and 16115 transitions. [2022-11-25 22:36:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:11,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 378 [2022-11-25 22:36:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:11,882 INFO L225 Difference]: With dead ends: 11250 [2022-11-25 22:36:11,882 INFO L226 Difference]: Without dead ends: 6755 [2022-11-25 22:36:11,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:11,914 INFO L413 NwaCegarLoop]: 3747 mSDtfsCounter, 3186 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:11,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 6680 Invalid, 918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 22:36:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6755 states. [2022-11-25 22:36:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6755 to 6722. [2022-11-25 22:36:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6722 states, 3879 states have (on average 1.2789378705852024) internal successors, (4961), 4029 states have internal predecessors, (4961), 2327 states have call successors, (2327), 514 states have call predecessors, (2327), 513 states have return successors, (2323), 2275 states have call predecessors, (2323), 2323 states have call successors, (2323) [2022-11-25 22:36:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6722 states to 6722 states and 9611 transitions. [2022-11-25 22:36:12,792 INFO L78 Accepts]: Start accepts. Automaton has 6722 states and 9611 transitions. Word has length 378 [2022-11-25 22:36:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:12,799 INFO L495 AbstractCegarLoop]: Abstraction has 6722 states and 9611 transitions. [2022-11-25 22:36:12,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 22:36:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6722 states and 9611 transitions. [2022-11-25 22:36:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-11-25 22:36:12,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:12,816 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:12,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:36:12,817 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)] === [2022-11-25 22:36:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:12,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1463788085, now seen corresponding path program 1 times [2022-11-25 22:36:12,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:12,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885225395] [2022-11-25 22:36:12,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:12,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-11-25 22:36:13,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:13,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885225395] [2022-11-25 22:36:13,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885225395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:13,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:13,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:13,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740771284] [2022-11-25 22:36:13,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:13,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:13,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:13,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:13,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:13,427 INFO L87 Difference]: Start difference. First operand 6722 states and 9611 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 22:36:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:16,781 INFO L93 Difference]: Finished difference Result 14179 states and 20210 transitions. [2022-11-25 22:36:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:16,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 379 [2022-11-25 22:36:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:16,844 INFO L225 Difference]: With dead ends: 14179 [2022-11-25 22:36:16,844 INFO L226 Difference]: Without dead ends: 7526 [2022-11-25 22:36:16,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:16,889 INFO L413 NwaCegarLoop]: 4324 mSDtfsCounter, 3166 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 7257 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:16,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 7257 Invalid, 1042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 22:36:16,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2022-11-25 22:36:17,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7493. [2022-11-25 22:36:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7493 states, 4347 states have (on average 1.279043018173453) internal successors, (5560), 4516 states have internal predecessors, (5560), 2542 states have call successors, (2542), 602 states have call predecessors, (2542), 601 states have return successors, (2538), 2479 states have call predecessors, (2538), 2538 states have call successors, (2538) [2022-11-25 22:36:17,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7493 states to 7493 states and 10640 transitions. [2022-11-25 22:36:17,621 INFO L78 Accepts]: Start accepts. Automaton has 7493 states and 10640 transitions. Word has length 379 [2022-11-25 22:36:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:17,622 INFO L495 AbstractCegarLoop]: Abstraction has 7493 states and 10640 transitions. [2022-11-25 22:36:17,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 22:36:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7493 states and 10640 transitions. [2022-11-25 22:36:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-25 22:36:17,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:17,635 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:17,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:36:17,636 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)] === [2022-11-25 22:36:17,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1624875189, now seen corresponding path program 1 times [2022-11-25 22:36:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:17,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797932383] [2022-11-25 22:36:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4720 trivial. 0 not checked. [2022-11-25 22:36:18,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:18,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797932383] [2022-11-25 22:36:18,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797932383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:18,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:18,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:18,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732916259] [2022-11-25 22:36:18,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:18,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:18,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:18,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:18,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:18,803 INFO L87 Difference]: Start difference. First operand 7493 states and 10640 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-11-25 22:36:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:21,621 INFO L93 Difference]: Finished difference Result 7499 states and 10645 transitions. [2022-11-25 22:36:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:21,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 407 [2022-11-25 22:36:21,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:21,681 INFO L225 Difference]: With dead ends: 7499 [2022-11-25 22:36:21,681 INFO L226 Difference]: Without dead ends: 7497 [2022-11-25 22:36:21,687 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 [2022-11-25 22:36:21,688 INFO L413 NwaCegarLoop]: 2960 mSDtfsCounter, 3295 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:21,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 8861 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:36:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2022-11-25 22:36:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2022-11-25 22:36:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 4350 states have (on average 1.2788505747126437) internal successors, (5563), 4519 states have internal predecessors, (5563), 2542 states have call successors, (2542), 603 states have call predecessors, (2542), 602 states have return successors, (2538), 2479 states have call predecessors, (2538), 2538 states have call successors, (2538) [2022-11-25 22:36:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 10643 transitions. [2022-11-25 22:36:22,518 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 10643 transitions. Word has length 407 [2022-11-25 22:36:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:22,520 INFO L495 AbstractCegarLoop]: Abstraction has 7497 states and 10643 transitions. [2022-11-25 22:36:22,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-11-25 22:36:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 10643 transitions. [2022-11-25 22:36:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-25 22:36:22,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:22,536 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:22,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:36:22,536 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)] === [2022-11-25 22:36:22,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 45440738, now seen corresponding path program 1 times [2022-11-25 22:36:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:22,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150072263] [2022-11-25 22:36:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4722 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4720 trivial. 0 not checked. [2022-11-25 22:36:23,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:23,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150072263] [2022-11-25 22:36:23,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150072263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:23,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:23,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954783473] [2022-11-25 22:36:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:23,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:23,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:23,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:23,708 INFO L87 Difference]: Start difference. First operand 7497 states and 10643 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:26,686 INFO L93 Difference]: Finished difference Result 7503 states and 10648 transitions. [2022-11-25 22:36:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 412 [2022-11-25 22:36:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:26,738 INFO L225 Difference]: With dead ends: 7503 [2022-11-25 22:36:26,739 INFO L226 Difference]: Without dead ends: 7501 [2022-11-25 22:36:26,745 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 [2022-11-25 22:36:26,746 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:26,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 22:36:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2022-11-25 22:36:27,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2022-11-25 22:36:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7501 states, 4353 states have (on average 1.2786583965081553) internal successors, (5566), 4522 states have internal predecessors, (5566), 2542 states have call successors, (2542), 604 states have call predecessors, (2542), 603 states have return successors, (2538), 2479 states have call predecessors, (2538), 2538 states have call successors, (2538) [2022-11-25 22:36:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 10646 transitions. [2022-11-25 22:36:27,584 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 10646 transitions. Word has length 412 [2022-11-25 22:36:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:27,585 INFO L495 AbstractCegarLoop]: Abstraction has 7501 states and 10646 transitions. [2022-11-25 22:36:27,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 10646 transitions. [2022-11-25 22:36:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-11-25 22:36:27,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:27,598 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:27,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:36:27,599 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)] === [2022-11-25 22:36:27,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -681079659, now seen corresponding path program 1 times [2022-11-25 22:36:27,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:27,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134625557] [2022-11-25 22:36:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4728 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4724 trivial. 0 not checked. [2022-11-25 22:36:28,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:28,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134625557] [2022-11-25 22:36:28,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134625557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:28,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:28,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:28,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213217490] [2022-11-25 22:36:28,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:28,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:28,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:28,528 INFO L87 Difference]: Start difference. First operand 7501 states and 10646 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-25 22:36:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:31,944 INFO L93 Difference]: Finished difference Result 7507 states and 10651 transitions. [2022-11-25 22:36:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:31,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 417 [2022-11-25 22:36:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:31,993 INFO L225 Difference]: With dead ends: 7507 [2022-11-25 22:36:31,993 INFO L226 Difference]: Without dead ends: 7505 [2022-11-25 22:36:32,000 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 [2022-11-25 22:36:32,002 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:32,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 22:36:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-11-25 22:36:32,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7505. [2022-11-25 22:36:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 4356 states have (on average 1.2784664830119377) internal successors, (5569), 4525 states have internal predecessors, (5569), 2542 states have call successors, (2542), 605 states have call predecessors, (2542), 604 states have return successors, (2538), 2479 states have call predecessors, (2538), 2538 states have call successors, (2538) [2022-11-25 22:36:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 10649 transitions. [2022-11-25 22:36:32,870 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 10649 transitions. Word has length 417 [2022-11-25 22:36:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:32,872 INFO L495 AbstractCegarLoop]: Abstraction has 7505 states and 10649 transitions. [2022-11-25 22:36:32,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-25 22:36:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 10649 transitions. [2022-11-25 22:36:32,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-11-25 22:36:32,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:32,888 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:32,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:36:32,889 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)] === [2022-11-25 22:36:32,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:32,890 INFO L85 PathProgramCache]: Analyzing trace with hash -657281453, now seen corresponding path program 1 times [2022-11-25 22:36:32,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:32,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829011801] [2022-11-25 22:36:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4740 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4734 trivial. 0 not checked. [2022-11-25 22:36:33,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:33,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829011801] [2022-11-25 22:36:33,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829011801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:33,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:33,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:33,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384296677] [2022-11-25 22:36:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:33,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:33,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:33,903 INFO L87 Difference]: Start difference. First operand 7505 states and 10649 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-11-25 22:36:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:37,781 INFO L93 Difference]: Finished difference Result 9327 states and 13140 transitions. [2022-11-25 22:36:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:37,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 436 [2022-11-25 22:36:37,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:37,848 INFO L225 Difference]: With dead ends: 9327 [2022-11-25 22:36:37,848 INFO L226 Difference]: Without dead ends: 9325 [2022-11-25 22:36:37,855 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 [2022-11-25 22:36:37,856 INFO L413 NwaCegarLoop]: 3484 mSDtfsCounter, 3127 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 11288 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:37,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 11288 Invalid, 1637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 22:36:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9325 states. [2022-11-25 22:36:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9325 to 9315. [2022-11-25 22:36:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9315 states, 5328 states have (on average 1.2727102102102101) internal successors, (6781), 5581 states have internal predecessors, (6781), 3133 states have call successors, (3133), 867 states have call predecessors, (3133), 851 states have return successors, (3216), 3004 states have call predecessors, (3216), 3129 states have call successors, (3216) [2022-11-25 22:36:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9315 states to 9315 states and 13130 transitions. [2022-11-25 22:36:38,932 INFO L78 Accepts]: Start accepts. Automaton has 9315 states and 13130 transitions. Word has length 436 [2022-11-25 22:36:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:38,933 INFO L495 AbstractCegarLoop]: Abstraction has 9315 states and 13130 transitions. [2022-11-25 22:36:38,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2022-11-25 22:36:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9315 states and 13130 transitions. [2022-11-25 22:36:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-11-25 22:36:38,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:38,942 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:38,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:36:38,942 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)] === [2022-11-25 22:36:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash -615421116, now seen corresponding path program 1 times [2022-11-25 22:36:38,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:38,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904214263] [2022-11-25 22:36:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:38,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4754 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4746 trivial. 0 not checked. [2022-11-25 22:36:39,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:39,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904214263] [2022-11-25 22:36:39,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904214263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:39,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:39,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:39,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770988237] [2022-11-25 22:36:39,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:39,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:39,775 INFO L87 Difference]: Start difference. First operand 9315 states and 13130 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-25 22:36:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:42,577 INFO L93 Difference]: Finished difference Result 9368 states and 13172 transitions. [2022-11-25 22:36:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:42,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 441 [2022-11-25 22:36:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:42,628 INFO L225 Difference]: With dead ends: 9368 [2022-11-25 22:36:42,628 INFO L226 Difference]: Without dead ends: 9366 [2022-11-25 22:36:42,633 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 [2022-11-25 22:36:42,634 INFO L413 NwaCegarLoop]: 2966 mSDtfsCounter, 3268 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 8900 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:42,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3281 Valid, 8900 Invalid, 1350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 22:36:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9366 states. [2022-11-25 22:36:43,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9366 to 9364. [2022-11-25 22:36:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9364 states, 5358 states have (on average 1.2717431877566256) internal successors, (6814), 5611 states have internal predecessors, (6814), 3136 states have call successors, (3136), 883 states have call predecessors, (3136), 867 states have return successors, (3219), 3007 states have call predecessors, (3219), 3132 states have call successors, (3219) [2022-11-25 22:36:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9364 states to 9364 states and 13169 transitions. [2022-11-25 22:36:43,548 INFO L78 Accepts]: Start accepts. Automaton has 9364 states and 13169 transitions. Word has length 441 [2022-11-25 22:36:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:43,549 INFO L495 AbstractCegarLoop]: Abstraction has 9364 states and 13169 transitions. [2022-11-25 22:36:43,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-25 22:36:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9364 states and 13169 transitions. [2022-11-25 22:36:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-25 22:36:43,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:43,559 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:43,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:36:43,560 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)] === [2022-11-25 22:36:43,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:43,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1930520098, now seen corresponding path program 1 times [2022-11-25 22:36:43,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:43,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482390492] [2022-11-25 22:36:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:43,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4770 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4760 trivial. 0 not checked. [2022-11-25 22:36:44,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:44,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482390492] [2022-11-25 22:36:44,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482390492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:44,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:44,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:44,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368299288] [2022-11-25 22:36:44,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:44,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:44,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:44,340 INFO L87 Difference]: Start difference. First operand 9364 states and 13169 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:48,375 INFO L93 Difference]: Finished difference Result 9370 states and 13174 transitions. [2022-11-25 22:36:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 432 [2022-11-25 22:36:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:48,420 INFO L225 Difference]: With dead ends: 9370 [2022-11-25 22:36:48,420 INFO L226 Difference]: Without dead ends: 9368 [2022-11-25 22:36:48,425 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 [2022-11-25 22:36:48,426 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:48,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 22:36:48,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9368 states. [2022-11-25 22:36:49,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9368 to 9368. [2022-11-25 22:36:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 5361 states have (on average 1.271591121059504) internal successors, (6817), 5614 states have internal predecessors, (6817), 3136 states have call successors, (3136), 884 states have call predecessors, (3136), 868 states have return successors, (3219), 3007 states have call predecessors, (3219), 3132 states have call successors, (3219) [2022-11-25 22:36:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 13172 transitions. [2022-11-25 22:36:49,391 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 13172 transitions. Word has length 432 [2022-11-25 22:36:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:49,393 INFO L495 AbstractCegarLoop]: Abstraction has 9368 states and 13172 transitions. [2022-11-25 22:36:49,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 13172 transitions. [2022-11-25 22:36:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-11-25 22:36:49,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:49,403 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:49,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:36:49,403 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)] === [2022-11-25 22:36:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1608356779, now seen corresponding path program 1 times [2022-11-25 22:36:49,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:49,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513243166] [2022-11-25 22:36:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4792 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-25 22:36:50,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513243166] [2022-11-25 22:36:50,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513243166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:50,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:50,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:50,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709860427] [2022-11-25 22:36:50,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:50,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:50,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:50,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:50,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:50,178 INFO L87 Difference]: Start difference. First operand 9368 states and 13172 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:53,242 INFO L93 Difference]: Finished difference Result 9374 states and 13177 transitions. [2022-11-25 22:36:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:53,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 437 [2022-11-25 22:36:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:53,284 INFO L225 Difference]: With dead ends: 9374 [2022-11-25 22:36:53,285 INFO L226 Difference]: Without dead ends: 9372 [2022-11-25 22:36:53,290 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 [2022-11-25 22:36:53,291 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:53,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 22:36:53,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9372 states. [2022-11-25 22:36:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9372 to 9372. [2022-11-25 22:36:54,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9372 states, 5364 states have (on average 1.2714392244593586) internal successors, (6820), 5617 states have internal predecessors, (6820), 3136 states have call successors, (3136), 885 states have call predecessors, (3136), 869 states have return successors, (3219), 3007 states have call predecessors, (3219), 3132 states have call successors, (3219) [2022-11-25 22:36:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9372 states to 9372 states and 13175 transitions. [2022-11-25 22:36:54,156 INFO L78 Accepts]: Start accepts. Automaton has 9372 states and 13175 transitions. Word has length 437 [2022-11-25 22:36:54,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:54,158 INFO L495 AbstractCegarLoop]: Abstraction has 9372 states and 13175 transitions. [2022-11-25 22:36:54,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2022-11-25 22:36:54,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9372 states and 13175 transitions. [2022-11-25 22:36:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-11-25 22:36:54,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:54,169 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:54,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:36:54,169 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-11-25 22:36:54,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:54,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1941300749, now seen corresponding path program 1 times [2022-11-25 22:36:54,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:54,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734659634] [2022-11-25 22:36:54,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:54,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4793 trivial. 0 not checked. [2022-11-25 22:36:54,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:54,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734659634] [2022-11-25 22:36:54,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734659634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:54,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:54,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062759082] [2022-11-25 22:36:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:54,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:54,566 INFO L87 Difference]: Start difference. First operand 9372 states and 13175 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 22:36:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:58,091 INFO L93 Difference]: Finished difference Result 21643 states and 30421 transitions. [2022-11-25 22:36:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 439 [2022-11-25 22:36:58,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:58,168 INFO L225 Difference]: With dead ends: 21643 [2022-11-25 22:36:58,169 INFO L226 Difference]: Without dead ends: 12642 [2022-11-25 22:36:58,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:58,217 INFO L413 NwaCegarLoop]: 4077 mSDtfsCounter, 3166 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 7008 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:58,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 7008 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:36:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12642 states. [2022-11-25 22:36:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12642 to 12581. [2022-11-25 22:36:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12581 states, 7202 states have (on average 1.272007775617884) internal successors, (9161), 7544 states have internal predecessors, (9161), 4201 states have call successors, (4201), 1196 states have call predecessors, (4201), 1175 states have return successors, (4313), 4025 states have call predecessors, (4313), 4197 states have call successors, (4313) [2022-11-25 22:36:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12581 states to 12581 states and 17675 transitions. [2022-11-25 22:36:59,374 INFO L78 Accepts]: Start accepts. Automaton has 12581 states and 17675 transitions. Word has length 439 [2022-11-25 22:36:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:59,376 INFO L495 AbstractCegarLoop]: Abstraction has 12581 states and 17675 transitions. [2022-11-25 22:36:59,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 22:36:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 12581 states and 17675 transitions. [2022-11-25 22:36:59,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-25 22:36:59,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:59,389 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:59,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:36:59,389 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)] === [2022-11-25 22:36:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1828160578, now seen corresponding path program 1 times [2022-11-25 22:36:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:59,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857162618] [2022-11-25 22:36:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4793 trivial. 0 not checked. [2022-11-25 22:36:59,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:59,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857162618] [2022-11-25 22:36:59,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857162618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:59,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:59,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845211974] [2022-11-25 22:36:59,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:59,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:59,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:59,828 INFO L87 Difference]: Start difference. First operand 12581 states and 17675 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 22:37:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:03,600 INFO L93 Difference]: Finished difference Result 28462 states and 39964 transitions. [2022-11-25 22:37:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:37:03,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 438 [2022-11-25 22:37:03,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:03,692 INFO L225 Difference]: With dead ends: 28462 [2022-11-25 22:37:03,693 INFO L226 Difference]: Without dead ends: 16252 [2022-11-25 22:37:03,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:37:03,752 INFO L413 NwaCegarLoop]: 5663 mSDtfsCounter, 3186 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 8594 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:03,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 8594 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 22:37:03,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16252 states. [2022-11-25 22:37:05,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16252 to 16191. [2022-11-25 22:37:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16191 states, 9285 states have (on average 1.272697899838449) internal successors, (11817), 9724 states have internal predecessors, (11817), 5378 states have call successors, (5378), 1551 states have call predecessors, (5378), 1525 states have return successors, (5519), 5151 states have call predecessors, (5519), 5374 states have call successors, (5519) [2022-11-25 22:37:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 22714 transitions. [2022-11-25 22:37:05,412 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 22714 transitions. Word has length 438 [2022-11-25 22:37:05,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:05,413 INFO L495 AbstractCegarLoop]: Abstraction has 16191 states and 22714 transitions. [2022-11-25 22:37:05,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 22:37:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 22714 transitions. [2022-11-25 22:37:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-11-25 22:37:05,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:05,424 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 8, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:05,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:37:05,425 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)] === [2022-11-25 22:37:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1981192766, now seen corresponding path program 1 times [2022-11-25 22:37:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:05,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000410083] [2022-11-25 22:37:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:06,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4804 trivial. 0 not checked. [2022-11-25 22:37:06,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:06,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000410083] [2022-11-25 22:37:06,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000410083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:06,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:06,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:06,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778628803] [2022-11-25 22:37:06,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:06,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:06,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:06,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:06,250 INFO L87 Difference]: Start difference. First operand 16191 states and 22714 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:37:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:09,679 INFO L93 Difference]: Finished difference Result 16389 states and 22850 transitions. [2022-11-25 22:37:09,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 442 [2022-11-25 22:37:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:09,756 INFO L225 Difference]: With dead ends: 16389 [2022-11-25 22:37:09,756 INFO L226 Difference]: Without dead ends: 16387 [2022-11-25 22:37:09,766 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 [2022-11-25 22:37:09,767 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 3157 mSDsluCounter, 6027 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 8991 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:09,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3167 Valid, 8991 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:37:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16387 states. [2022-11-25 22:37:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16387 to 16385. [2022-11-25 22:37:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16385 states, 9398 states have (on average 1.2704830815067036) internal successors, (11940), 9837 states have internal predecessors, (11940), 5383 states have call successors, (5383), 1627 states have call predecessors, (5383), 1601 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16385 states to 16385 states and 22847 transitions. [2022-11-25 22:37:11,215 INFO L78 Accepts]: Start accepts. Automaton has 16385 states and 22847 transitions. Word has length 442 [2022-11-25 22:37:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:11,216 INFO L495 AbstractCegarLoop]: Abstraction has 16385 states and 22847 transitions. [2022-11-25 22:37:11,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:37:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 16385 states and 22847 transitions. [2022-11-25 22:37:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-25 22:37:11,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:11,230 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:11,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:37:11,230 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)] === [2022-11-25 22:37:11,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:11,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1115128444, now seen corresponding path program 1 times [2022-11-25 22:37:11,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:11,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765960110] [2022-11-25 22:37:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:11,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4834 trivial. 0 not checked. [2022-11-25 22:37:12,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:12,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765960110] [2022-11-25 22:37:12,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765960110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:12,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:12,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:12,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484245020] [2022-11-25 22:37:12,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:12,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:12,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:12,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:12,063 INFO L87 Difference]: Start difference. First operand 16385 states and 22847 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-25 22:37:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:15,893 INFO L93 Difference]: Finished difference Result 16391 states and 22852 transitions. [2022-11-25 22:37:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 461 [2022-11-25 22:37:15,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:15,959 INFO L225 Difference]: With dead ends: 16391 [2022-11-25 22:37:15,959 INFO L226 Difference]: Without dead ends: 16389 [2022-11-25 22:37:15,969 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 [2022-11-25 22:37:15,969 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:15,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 22:37:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16389 states. [2022-11-25 22:37:17,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16389 to 16389. [2022-11-25 22:37:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16389 states, 9401 states have (on average 1.2703967663014573) internal successors, (11943), 9840 states have internal predecessors, (11943), 5383 states have call successors, (5383), 1628 states have call predecessors, (5383), 1602 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 22850 transitions. [2022-11-25 22:37:17,459 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 22850 transitions. Word has length 461 [2022-11-25 22:37:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:17,460 INFO L495 AbstractCegarLoop]: Abstraction has 16389 states and 22850 transitions. [2022-11-25 22:37:17,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-25 22:37:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 22850 transitions. [2022-11-25 22:37:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2022-11-25 22:37:17,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:17,475 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:17,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:37:17,476 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)] === [2022-11-25 22:37:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:17,477 INFO L85 PathProgramCache]: Analyzing trace with hash -954811466, now seen corresponding path program 1 times [2022-11-25 22:37:17,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:17,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295321497] [2022-11-25 22:37:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:17,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4885 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4867 trivial. 0 not checked. [2022-11-25 22:37:18,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:18,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295321497] [2022-11-25 22:37:18,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295321497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:18,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:18,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:18,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752592955] [2022-11-25 22:37:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:18,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:18,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:18,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:18,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:18,244 INFO L87 Difference]: Start difference. First operand 16389 states and 22850 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-25 22:37:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:21,857 INFO L93 Difference]: Finished difference Result 16395 states and 22855 transitions. [2022-11-25 22:37:21,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 467 [2022-11-25 22:37:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:21,939 INFO L225 Difference]: With dead ends: 16395 [2022-11-25 22:37:21,940 INFO L226 Difference]: Without dead ends: 16393 [2022-11-25 22:37:21,952 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 [2022-11-25 22:37:21,953 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:21,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 22:37:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16393 states. [2022-11-25 22:37:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16393 to 16393. [2022-11-25 22:37:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16393 states, 9404 states have (on average 1.2703105061675883) internal successors, (11946), 9843 states have internal predecessors, (11946), 5383 states have call successors, (5383), 1629 states have call predecessors, (5383), 1603 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16393 states to 16393 states and 22853 transitions. [2022-11-25 22:37:23,426 INFO L78 Accepts]: Start accepts. Automaton has 16393 states and 22853 transitions. Word has length 467 [2022-11-25 22:37:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:23,427 INFO L495 AbstractCegarLoop]: Abstraction has 16393 states and 22853 transitions. [2022-11-25 22:37:23,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-25 22:37:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16393 states and 22853 transitions. [2022-11-25 22:37:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-11-25 22:37:23,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:23,442 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 11, 10, 10, 4, 4, 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] [2022-11-25 22:37:23,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:37:23,443 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)] === [2022-11-25 22:37:23,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:23,443 INFO L85 PathProgramCache]: Analyzing trace with hash 271307329, now seen corresponding path program 1 times [2022-11-25 22:37:23,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:23,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582491811] [2022-11-25 22:37:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:23,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4923 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4903 trivial. 0 not checked. [2022-11-25 22:37:24,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:24,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582491811] [2022-11-25 22:37:24,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582491811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:24,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:24,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632863074] [2022-11-25 22:37:24,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:24,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:24,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:24,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:24,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:24,354 INFO L87 Difference]: Start difference. First operand 16393 states and 22853 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-25 22:37:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:28,091 INFO L93 Difference]: Finished difference Result 16399 states and 22858 transitions. [2022-11-25 22:37:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:28,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 472 [2022-11-25 22:37:28,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:28,171 INFO L225 Difference]: With dead ends: 16399 [2022-11-25 22:37:28,171 INFO L226 Difference]: Without dead ends: 16397 [2022-11-25 22:37:28,184 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 [2022-11-25 22:37:28,185 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3296 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 22:37:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16397 states. [2022-11-25 22:37:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16397 to 16397. [2022-11-25 22:37:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 9407 states have (on average 1.2702243010524077) internal successors, (11949), 9846 states have internal predecessors, (11949), 5383 states have call successors, (5383), 1630 states have call predecessors, (5383), 1604 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:30,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 22856 transitions. [2022-11-25 22:37:30,179 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 22856 transitions. Word has length 472 [2022-11-25 22:37:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:30,179 INFO L495 AbstractCegarLoop]: Abstraction has 16397 states and 22856 transitions. [2022-11-25 22:37:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-25 22:37:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 22856 transitions. [2022-11-25 22:37:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-11-25 22:37:30,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:30,193 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:30,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:37:30,193 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-11-25 22:37:30,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1153724677, now seen corresponding path program 1 times [2022-11-25 22:37:30,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:30,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016904832] [2022-11-25 22:37:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:30,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2022-11-25 22:37:31,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:31,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016904832] [2022-11-25 22:37:31,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016904832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:31,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:31,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270408913] [2022-11-25 22:37:31,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:31,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:31,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:31,700 INFO L87 Difference]: Start difference. First operand 16397 states and 22856 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-25 22:37:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:36,095 INFO L93 Difference]: Finished difference Result 16433 states and 22889 transitions. [2022-11-25 22:37:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:37:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 455 [2022-11-25 22:37:36,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:36,172 INFO L225 Difference]: With dead ends: 16433 [2022-11-25 22:37:36,172 INFO L226 Difference]: Without dead ends: 16431 [2022-11-25 22:37:36,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:37:36,185 INFO L413 NwaCegarLoop]: 3484 mSDtfsCounter, 3119 mSDsluCounter, 7825 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 11309 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:36,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3122 Valid, 11309 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 22:37:36,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16431 states. [2022-11-25 22:37:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16431 to 16417. [2022-11-25 22:37:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16417 states, 9422 states have (on average 1.2697940989174272) internal successors, (11964), 9861 states have internal predecessors, (11964), 5383 states have call successors, (5383), 1635 states have call predecessors, (5383), 1609 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16417 states to 16417 states and 22871 transitions. [2022-11-25 22:37:37,747 INFO L78 Accepts]: Start accepts. Automaton has 16417 states and 22871 transitions. Word has length 455 [2022-11-25 22:37:37,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:37,747 INFO L495 AbstractCegarLoop]: Abstraction has 16417 states and 22871 transitions. [2022-11-25 22:37:37,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-25 22:37:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 16417 states and 22871 transitions. [2022-11-25 22:37:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-11-25 22:37:37,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:37,762 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 12, 11, 11, 4, 4, 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] [2022-11-25 22:37:37,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:37:37,763 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-11-25 22:37:37,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:37,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1541197226, now seen corresponding path program 1 times [2022-11-25 22:37:37,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:37,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184836604] [2022-11-25 22:37:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:37,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4965 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4943 trivial. 0 not checked. [2022-11-25 22:37:38,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184836604] [2022-11-25 22:37:38,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184836604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:38,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:38,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645962742] [2022-11-25 22:37:38,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:38,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:38,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:38,598 INFO L87 Difference]: Start difference. First operand 16417 states and 22871 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-25 22:37:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:42,297 INFO L93 Difference]: Finished difference Result 16423 states and 22876 transitions. [2022-11-25 22:37:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 477 [2022-11-25 22:37:42,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:42,350 INFO L225 Difference]: With dead ends: 16423 [2022-11-25 22:37:42,350 INFO L226 Difference]: Without dead ends: 16421 [2022-11-25 22:37:42,357 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 [2022-11-25 22:37:42,357 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:42,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 22:37:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16421 states. [2022-11-25 22:37:44,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16421 to 16421. [2022-11-25 22:37:44,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16421 states, 9425 states have (on average 1.2697082228116712) internal successors, (11967), 9864 states have internal predecessors, (11967), 5383 states have call successors, (5383), 1636 states have call predecessors, (5383), 1610 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16421 states to 16421 states and 22874 transitions. [2022-11-25 22:37:44,213 INFO L78 Accepts]: Start accepts. Automaton has 16421 states and 22874 transitions. Word has length 477 [2022-11-25 22:37:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:44,214 INFO L495 AbstractCegarLoop]: Abstraction has 16421 states and 22874 transitions. [2022-11-25 22:37:44,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-25 22:37:44,215 INFO L276 IsEmpty]: Start isEmpty. Operand 16421 states and 22874 transitions. [2022-11-25 22:37:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-25 22:37:44,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:44,231 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 13, 12, 12, 4, 4, 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] [2022-11-25 22:37:44,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:37:44,231 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)] === [2022-11-25 22:37:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:44,232 INFO L85 PathProgramCache]: Analyzing trace with hash -407195871, now seen corresponding path program 1 times [2022-11-25 22:37:44,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:44,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436614514] [2022-11-25 22:37:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:44,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5011 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4987 trivial. 0 not checked. [2022-11-25 22:37:45,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:45,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436614514] [2022-11-25 22:37:45,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436614514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:45,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:45,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915851325] [2022-11-25 22:37:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:45,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:45,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:45,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:45,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:45,065 INFO L87 Difference]: Start difference. First operand 16421 states and 22874 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-25 22:37:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:49,245 INFO L93 Difference]: Finished difference Result 16427 states and 22879 transitions. [2022-11-25 22:37:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 482 [2022-11-25 22:37:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:49,301 INFO L225 Difference]: With dead ends: 16427 [2022-11-25 22:37:49,301 INFO L226 Difference]: Without dead ends: 16425 [2022-11-25 22:37:49,307 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 [2022-11-25 22:37:49,309 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:49,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:37:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16425 states. [2022-11-25 22:37:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 16425. [2022-11-25 22:37:51,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16425 states, 9428 states have (on average 1.269622401357658) internal successors, (11970), 9867 states have internal predecessors, (11970), 5383 states have call successors, (5383), 1637 states have call predecessors, (5383), 1611 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16425 states to 16425 states and 22877 transitions. [2022-11-25 22:37:51,341 INFO L78 Accepts]: Start accepts. Automaton has 16425 states and 22877 transitions. Word has length 482 [2022-11-25 22:37:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:51,341 INFO L495 AbstractCegarLoop]: Abstraction has 16425 states and 22877 transitions. [2022-11-25 22:37:51,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-25 22:37:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 16425 states and 22877 transitions. [2022-11-25 22:37:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-11-25 22:37:51,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:51,351 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 14, 13, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:51,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 22:37:51,351 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)] === [2022-11-25 22:37:51,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash -331262814, now seen corresponding path program 1 times [2022-11-25 22:37:51,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:51,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565263289] [2022-11-25 22:37:51,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:51,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5058 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 5032 trivial. 0 not checked. [2022-11-25 22:37:52,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:52,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565263289] [2022-11-25 22:37:52,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565263289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:52,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:52,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:37:52,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639806482] [2022-11-25 22:37:52,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:52,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:37:52,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:52,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:37:52,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:37:52,083 INFO L87 Difference]: Start difference. First operand 16425 states and 22877 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-25 22:37:55,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:37:55,375 INFO L93 Difference]: Finished difference Result 16431 states and 22882 transitions. [2022-11-25 22:37:55,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:37:55,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 472 [2022-11-25 22:37:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:37:55,433 INFO L225 Difference]: With dead ends: 16431 [2022-11-25 22:37:55,433 INFO L226 Difference]: Without dead ends: 16429 [2022-11-25 22:37:55,442 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 [2022-11-25 22:37:55,443 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:37:55,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:37:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16429 states. [2022-11-25 22:37:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16429 to 16429. [2022-11-25 22:37:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16429 states, 9431 states have (on average 1.269536634503234) internal successors, (11973), 9870 states have internal predecessors, (11973), 5383 states have call successors, (5383), 1638 states have call predecessors, (5383), 1612 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:37:57,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16429 states to 16429 states and 22880 transitions. [2022-11-25 22:37:57,426 INFO L78 Accepts]: Start accepts. Automaton has 16429 states and 22880 transitions. Word has length 472 [2022-11-25 22:37:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:37:57,427 INFO L495 AbstractCegarLoop]: Abstraction has 16429 states and 22880 transitions. [2022-11-25 22:37:57,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-25 22:37:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16429 states and 22880 transitions. [2022-11-25 22:37:57,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-25 22:37:57,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:57,440 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:57,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 22:37:57,440 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-11-25 22:37:57,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:57,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1543602314, now seen corresponding path program 1 times [2022-11-25 22:37:57,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:57,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847850987] [2022-11-25 22:37:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:57,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4979 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4979 trivial. 0 not checked. [2022-11-25 22:37:57,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:57,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847850987] [2022-11-25 22:37:57,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847850987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:57,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:57,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:37:57,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008004373] [2022-11-25 22:37:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:57,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:37:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:57,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:37:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:37:57,854 INFO L87 Difference]: Start difference. First operand 16429 states and 22880 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-11-25 22:38:01,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:01,238 INFO L93 Difference]: Finished difference Result 32542 states and 45815 transitions. [2022-11-25 22:38:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:38:01,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 474 [2022-11-25 22:38:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:01,310 INFO L225 Difference]: With dead ends: 32542 [2022-11-25 22:38:01,311 INFO L226 Difference]: Without dead ends: 16484 [2022-11-25 22:38:01,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:01,365 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 3 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:01,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5921 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 22:38:01,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16484 states. [2022-11-25 22:38:03,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16484 to 16434. [2022-11-25 22:38:03,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16434 states, 9436 states have (on average 1.2693938109368377) internal successors, (11978), 9875 states have internal predecessors, (11978), 5383 states have call successors, (5383), 1638 states have call predecessors, (5383), 1612 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:38:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16434 states to 16434 states and 22885 transitions. [2022-11-25 22:38:03,279 INFO L78 Accepts]: Start accepts. Automaton has 16434 states and 22885 transitions. Word has length 474 [2022-11-25 22:38:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:03,280 INFO L495 AbstractCegarLoop]: Abstraction has 16434 states and 22885 transitions. [2022-11-25 22:38:03,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-11-25 22:38:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16434 states and 22885 transitions. [2022-11-25 22:38:03,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-11-25 22:38:03,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:03,294 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 15, 14, 14, 4, 4, 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] [2022-11-25 22:38:03,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 22:38:03,295 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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)] === [2022-11-25 22:38:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:03,295 INFO L85 PathProgramCache]: Analyzing trace with hash 435463169, now seen corresponding path program 1 times [2022-11-25 22:38:03,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:03,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457439034] [2022-11-25 22:38:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:03,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5087 trivial. 0 not checked. [2022-11-25 22:38:03,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:03,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457439034] [2022-11-25 22:38:03,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457439034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:03,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:03,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:03,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618235456] [2022-11-25 22:38:03,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:03,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:03,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:03,912 INFO L87 Difference]: Start difference. First operand 16434 states and 22885 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-25 22:38:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:07,604 INFO L93 Difference]: Finished difference Result 16440 states and 22890 transitions. [2022-11-25 22:38:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:38:07,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 492 [2022-11-25 22:38:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:07,674 INFO L225 Difference]: With dead ends: 16440 [2022-11-25 22:38:07,674 INFO L226 Difference]: Without dead ends: 16438 [2022-11-25 22:38:07,683 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 [2022-11-25 22:38:07,684 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3292 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:07,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3292 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 22:38:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16438 states. [2022-11-25 22:38:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16438 to 16438. [2022-11-25 22:38:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16438 states, 9439 states have (on average 1.269308189426846) internal successors, (11981), 9878 states have internal predecessors, (11981), 5383 states have call successors, (5383), 1639 states have call predecessors, (5383), 1613 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:38:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16438 states to 16438 states and 22888 transitions. [2022-11-25 22:38:09,661 INFO L78 Accepts]: Start accepts. Automaton has 16438 states and 22888 transitions. Word has length 492 [2022-11-25 22:38:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:09,662 INFO L495 AbstractCegarLoop]: Abstraction has 16438 states and 22888 transitions. [2022-11-25 22:38:09,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-25 22:38:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 16438 states and 22888 transitions. [2022-11-25 22:38:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-11-25 22:38:09,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:09,675 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:09,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 22:38:09,676 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-11-25 22:38:09,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash -828892013, now seen corresponding path program 1 times [2022-11-25 22:38:09,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:09,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050119876] [2022-11-25 22:38:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:09,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5172 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-11-25 22:38:10,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:10,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050119876] [2022-11-25 22:38:10,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050119876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:10,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:10,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865623672] [2022-11-25 22:38:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:10,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:10,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:10,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:10,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:10,381 INFO L87 Difference]: Start difference. First operand 16438 states and 22888 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-25 22:38:15,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:15,546 INFO L93 Difference]: Finished difference Result 16444 states and 22893 transitions. [2022-11-25 22:38:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:38:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 496 [2022-11-25 22:38:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:15,604 INFO L225 Difference]: With dead ends: 16444 [2022-11-25 22:38:15,605 INFO L226 Difference]: Without dead ends: 16442 [2022-11-25 22:38:15,612 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 [2022-11-25 22:38:15,613 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:15,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 22:38:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16442 states. [2022-11-25 22:38:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16442 to 16442. [2022-11-25 22:38:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16442 states, 9442 states have (on average 1.2692226223257785) internal successors, (11984), 9881 states have internal predecessors, (11984), 5383 states have call successors, (5383), 1640 states have call predecessors, (5383), 1614 states have return successors, (5524), 5156 states have call predecessors, (5524), 5379 states have call successors, (5524) [2022-11-25 22:38:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16442 states to 16442 states and 22891 transitions. [2022-11-25 22:38:17,426 INFO L78 Accepts]: Start accepts. Automaton has 16442 states and 22891 transitions. Word has length 496 [2022-11-25 22:38:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:17,427 INFO L495 AbstractCegarLoop]: Abstraction has 16442 states and 22891 transitions. [2022-11-25 22:38:17,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-25 22:38:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 16442 states and 22891 transitions. [2022-11-25 22:38:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-25 22:38:17,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:17,439 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:17,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 22:38:17,439 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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)] === [2022-11-25 22:38:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash 708213107, now seen corresponding path program 1 times [2022-11-25 22:38:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:17,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254887651] [2022-11-25 22:38:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4979 trivial. 0 not checked. [2022-11-25 22:38:17,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:17,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254887651] [2022-11-25 22:38:17,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254887651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:17,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906967603] [2022-11-25 22:38:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:17,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:17,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:17,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:17,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:38:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:19,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:38:19,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 4875 trivial. 0 not checked. [2022-11-25 22:38:20,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:20,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906967603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:20,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:20,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-25 22:38:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756759994] [2022-11-25 22:38:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:20,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:38:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:20,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:38:20,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:20,090 INFO L87 Difference]: Start difference. First operand 16442 states and 22891 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 22:38:29,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:29,254 INFO L93 Difference]: Finished difference Result 36296 states and 50501 transitions. [2022-11-25 22:38:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:38:29,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 480 [2022-11-25 22:38:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:29,321 INFO L225 Difference]: With dead ends: 36296 [2022-11-25 22:38:29,321 INFO L226 Difference]: Without dead ends: 20225 [2022-11-25 22:38:29,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:29,361 INFO L413 NwaCegarLoop]: 5728 mSDtfsCounter, 3246 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 3278 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3246 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 3290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:29,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3246 Valid, 9884 Invalid, 3290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 3278 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 22:38:29,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20225 states. [2022-11-25 22:38:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20225 to 20128. [2022-11-25 22:38:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20128 states, 11579 states have (on average 1.2704896795923655) internal successors, (14711), 12115 states have internal predecessors, (14711), 6562 states have call successors, (6562), 2015 states have call predecessors, (6562), 1984 states have return successors, (6732), 6284 states have call predecessors, (6732), 6558 states have call successors, (6732) [2022-11-25 22:38:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 28005 transitions. [2022-11-25 22:38:32,155 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 28005 transitions. Word has length 480 [2022-11-25 22:38:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:32,156 INFO L495 AbstractCegarLoop]: Abstraction has 20128 states and 28005 transitions. [2022-11-25 22:38:32,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 22:38:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 28005 transitions. [2022-11-25 22:38:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-25 22:38:32,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:32,167 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:32,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:32,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 22:38:32,369 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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)] === [2022-11-25 22:38:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1093704126, now seen corresponding path program 1 times [2022-11-25 22:38:32,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:32,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022227751] [2022-11-25 22:38:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:32,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4981 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4980 trivial. 0 not checked. [2022-11-25 22:38:32,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:32,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022227751] [2022-11-25 22:38:32,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022227751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:32,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132967756] [2022-11-25 22:38:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:32,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:32,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:32,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:32,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:38:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:34,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:38:34,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4981 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 4875 trivial. 0 not checked. [2022-11-25 22:38:34,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:34,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132967756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:34,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:34,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-25 22:38:34,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576908805] [2022-11-25 22:38:34,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:34,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:38:34,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:34,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:38:34,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:34,384 INFO L87 Difference]: Start difference. First operand 20128 states and 28005 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 22:38:44,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:44,489 INFO L93 Difference]: Finished difference Result 44035 states and 61215 transitions. [2022-11-25 22:38:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:38:44,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 482 [2022-11-25 22:38:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:44,599 INFO L225 Difference]: With dead ends: 44035 [2022-11-25 22:38:44,599 INFO L226 Difference]: Without dead ends: 24278 [2022-11-25 22:38:44,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:44,648 INFO L413 NwaCegarLoop]: 5728 mSDtfsCounter, 3197 mSDsluCounter, 7077 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 12805 SdHoareTripleChecker+Invalid, 3752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:44,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3197 Valid, 12805 Invalid, 3752 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3745 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:38:44,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24278 states. [2022-11-25 22:38:47,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24278 to 24181. [2022-11-25 22:38:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24181 states, 13933 states have (on average 1.2710112682121582) internal successors, (17709), 14576 states have internal predecessors, (17709), 7846 states have call successors, (7846), 2435 states have call predecessors, (7846), 2399 states have return successors, (8045), 7511 states have call predecessors, (8045), 7842 states have call successors, (8045) [2022-11-25 22:38:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24181 states to 24181 states and 33600 transitions. [2022-11-25 22:38:47,579 INFO L78 Accepts]: Start accepts. Automaton has 24181 states and 33600 transitions. Word has length 482 [2022-11-25 22:38:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:47,580 INFO L495 AbstractCegarLoop]: Abstraction has 24181 states and 33600 transitions. [2022-11-25 22:38:47,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 22:38:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 24181 states and 33600 transitions. [2022-11-25 22:38:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-11-25 22:38:47,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:47,596 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 17, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:47,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:47,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb4f057c-c60b-4d79-b7c9-0c2f3434eda3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:47,810 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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)] === [2022-11-25 22:38:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:47,810 INFO L85 PathProgramCache]: Analyzing trace with hash -598474236, now seen corresponding path program 1 times [2022-11-25 22:38:47,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824527704] [2022-11-25 22:38:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5234 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2022-11-25 22:38:48,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:48,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824527704] [2022-11-25 22:38:48,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824527704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:48,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:48,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846608977] [2022-11-25 22:38:48,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:48,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:48,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:48,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:48,442 INFO L87 Difference]: Start difference. First operand 24181 states and 33600 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-25 22:38:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:53,898 INFO L93 Difference]: Finished difference Result 24187 states and 33605 transitions. [2022-11-25 22:38:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:38:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 501 [2022-11-25 22:38:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:53,987 INFO L225 Difference]: With dead ends: 24187 [2022-11-25 22:38:53,987 INFO L226 Difference]: Without dead ends: 24183 [2022-11-25 22:38:53,996 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 [2022-11-25 22:38:53,997 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:53,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3290 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 22:38:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-11-25 22:38:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2022-11-25 22:38:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 13935 states have (on average 1.2709006099748834) internal successors, (17710), 14577 states have internal predecessors, (17710), 7846 states have call successors, (7846), 2436 states have call predecessors, (7846), 2399 states have return successors, (8045), 7511 states have call predecessors, (8045), 7842 states have call successors, (8045) [2022-11-25 22:38:57,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 33601 transitions. [2022-11-25 22:38:57,123 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 33601 transitions. Word has length 501 [2022-11-25 22:38:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:57,124 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 33601 transitions. [2022-11-25 22:38:57,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-25 22:38:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 33601 transitions. [2022-11-25 22:38:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-11-25 22:38:57,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:57,142 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 18, 17, 17, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:57,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 22:38:57,142 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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)] === [2022-11-25 22:38:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash -781973962, now seen corresponding path program 1 times [2022-11-25 22:38:57,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:57,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191152985] [2022-11-25 22:38:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5301 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5267 trivial. 0 not checked. [2022-11-25 22:38:57,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:57,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191152985] [2022-11-25 22:38:57,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191152985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:57,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:57,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284531654] [2022-11-25 22:38:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:57,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:57,850 INFO L87 Difference]: Start difference. First operand 24183 states and 33601 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-25 22:39:03,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:03,453 INFO L93 Difference]: Finished difference Result 24183 states and 33601 transitions. [2022-11-25 22:39:03,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:39:03,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 507 [2022-11-25 22:39:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:03,545 INFO L225 Difference]: With dead ends: 24183 [2022-11-25 22:39:03,545 INFO L226 Difference]: Without dead ends: 23738 [2022-11-25 22:39:03,556 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 [2022-11-25 22:39:03,556 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 3285 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:03,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 8861 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:39:03,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23738 states. [2022-11-25 22:39:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23738 to 23738. [2022-11-25 22:39:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23738 states, 13753 states have (on average 1.2709954191812696) internal successors, (17480), 14347 states have internal predecessors, (17480), 7665 states have call successors, (7665), 2353 states have call predecessors, (7665), 2318 states have return successors, (7868), 7379 states have call predecessors, (7868), 7665 states have call successors, (7868) [2022-11-25 22:39:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23738 states to 23738 states and 33013 transitions. [2022-11-25 22:39:07,023 INFO L78 Accepts]: Start accepts. Automaton has 23738 states and 33013 transitions. Word has length 507 [2022-11-25 22:39:07,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:07,023 INFO L495 AbstractCegarLoop]: Abstraction has 23738 states and 33013 transitions. [2022-11-25 22:39:07,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-25 22:39:07,024 INFO L276 IsEmpty]: Start isEmpty. Operand 23738 states and 33013 transitions. [2022-11-25 22:39:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-11-25 22:39:07,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:07,042 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:07,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 22:39:07,043 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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)] === [2022-11-25 22:39:07,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:07,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2089314229, now seen corresponding path program 1 times [2022-11-25 22:39:07,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:07,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134289856] [2022-11-25 22:39:07,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:07,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-11-25 22:39:07,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:07,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134289856] [2022-11-25 22:39:07,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134289856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:07,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:07,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:39:07,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285137763] [2022-11-25 22:39:07,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:07,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:39:07,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:07,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:39:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:39:07,727 INFO L87 Difference]: Start difference. First operand 23738 states and 33013 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 4 states have call predecessors, (53), 3 states have call successors, (53)