./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/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_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 12:36:23,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:36:23,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:36:23,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:36:23,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:36:23,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:36:23,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:36:23,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:36:23,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:36:23,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:36:23,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:36:23,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:36:23,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:36:23,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:36:23,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:36:23,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:36:23,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:36:23,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:36:23,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:36:23,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:36:23,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:36:23,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:36:23,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:36:23,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:36:23,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:36:23,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:36:23,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:36:23,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:36:23,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:36:23,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:36:23,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:36:23,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:36:23,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:36:23,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:36:23,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:36:23,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:36:23,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:36:23,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:36:23,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:36:23,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:36:23,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:36:23,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:36:23,787 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:36:23,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:36:23,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:36:23,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:36:23,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:36:23,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:36:23,788 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:36:23,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:36:23,789 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:36:23,789 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:36:23,790 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:36:23,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:36:23,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:36:23,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:36:23,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:36:23,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:36:23,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:36:23,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:36:23,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:36:23,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:36:23,792 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_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2022-12-14 12:36:23,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:36:23,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:36:23,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:36:23,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:36:23,983 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:36:23,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-12-14 12:36:26,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:36:26,987 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:36:26,988 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-12-14 12:36:27,023 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/data/510772381/5a20d4e746dc48da9e03f2a66b14b55d/FLAG1dd41cb7a [2022-12-14 12:36:27,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/data/510772381/5a20d4e746dc48da9e03f2a66b14b55d [2022-12-14 12:36:27,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:36:27,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:36:27,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:36:27,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:36:27,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:36:27,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:36:27" (1/1) ... [2022-12-14 12:36:27,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590d6260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:27, skipping insertion in model container [2022-12-14 12:36:27,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:36:27" (1/1) ... [2022-12-14 12:36:27,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:36:27,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:36:27,556 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:36:27,630 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:27,691 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 12:36:27,786 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:27,795 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:27,824 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:36:27,839 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:36:27,876 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-12-14 12:36:27,881 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-12-14 12:36:27,890 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:27,891 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:27,892 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 12:36:27,893 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 12:36:27,899 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:27,899 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:27,900 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:27,907 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:27,907 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:27,908 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:27,925 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:36:27,940 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 12:36:27,957 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:36:27,963 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:36:28,058 WARN L623 FunctionHandler]: Unknown extern function test_set_page_writeback [2022-12-14 12:36:28,090 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_206 [2022-12-14 12:36:28,111 WARN L623 FunctionHandler]: Unknown extern function bio_alloc_bioset [2022-12-14 12:36:28,142 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:36:28,142 WARN L623 FunctionHandler]: Unknown extern function __lock_page [2022-12-14 12:36:28,152 WARN L623 FunctionHandler]: Unknown extern function wait_on_page_bit [2022-12-14 12:36:28,239 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:28,343 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:28,344 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:28,352 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:28,441 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,442 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,443 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,445 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,446 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,494 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 12:36:28,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,513 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-12-14 12:36:28,526 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:28,526 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:28,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,533 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_read_done [2022-12-14 12:36:28,539 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:36:28,540 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:36:28,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,575 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:28,575 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:28,577 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:28,577 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:28,584 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:28,585 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:28,590 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,592 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_write_done [2022-12-14 12:36:28,599 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:36:28,600 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:36:28,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,619 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:28,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,637 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-12-14 12:36:28,637 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:28,637 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:28,638 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 12:36:28,639 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_535 [2022-12-14 12:36:28,640 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_536 [2022-12-14 12:36:28,640 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:28,640 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:28,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,650 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:28,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,658 WARN L623 FunctionHandler]: Unknown extern function alloc_page_buffers [2022-12-14 12:36:28,659 WARN L623 FunctionHandler]: Unknown extern function bh_uptodate_or_lock [2022-12-14 12:36:28,660 WARN L623 FunctionHandler]: Unknown extern function bh_submit_read [2022-12-14 12:36:28,660 WARN L623 FunctionHandler]: Unknown extern function free_buffer_head [2022-12-14 12:36:28,666 WARN L623 FunctionHandler]: Unknown extern function find_get_page [2022-12-14 12:36:28,666 WARN L623 FunctionHandler]: Unknown extern function find_or_create_page [2022-12-14 12:36:28,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,668 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:28,668 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:28,669 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:28,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,689 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:28,689 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:28,690 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:28,691 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:28,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,702 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,712 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:28,719 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:28,720 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,721 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:28,721 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,729 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,735 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,735 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:28,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,743 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,750 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,768 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:28,769 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,776 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,777 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,780 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-12-14 12:36:28,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,782 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:28,782 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,782 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,790 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:28,791 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdevicelist [2022-12-14 12:36:28,791 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,794 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:28,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,816 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 12:36:28,816 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-12-14 12:36:28,816 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-12-14 12:36:28,823 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 12:36:28,830 WARN L623 FunctionHandler]: Unknown extern function radix_tree_next_hole [2022-12-14 12:36:28,837 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-12-14 12:36:28,837 WARN L623 FunctionHandler]: Unknown extern function nfs_dreq_bytes_left [2022-12-14 12:36:28,838 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_write [2022-12-14 12:36:28,844 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 12:36:28,851 WARN L623 FunctionHandler]: Unknown extern function rpc_d_lookup_sb [2022-12-14 12:36:28,852 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_dentry [2022-12-14 12:36:28,853 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 12:36:28,859 WARN L623 FunctionHandler]: Unknown extern function rpc_unlink [2022-12-14 12:36:28,865 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 12:36:28,865 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:28,867 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:28,872 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-12-14 12:36:28,873 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-12-14 12:36:28,879 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-12-14 12:36:28,879 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-12-14 12:36:28,885 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:36:28,885 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_data [2022-12-14 12:36:28,886 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-12-14 12:36:28,894 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-12-14 12:36:28,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,900 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-12-14 12:36:28,901 WARN L623 FunctionHandler]: Unknown extern function register_pernet_subsys [2022-12-14 12:36:28,901 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 12:36:28,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:28,908 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_subsys [2022-12-14 12:36:28,908 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 12:36:29,227 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,229 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,230 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,232 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:29,233 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-12-14 12:36:29,235 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-12-14 12:36:29,237 WARN L623 FunctionHandler]: Unknown extern function rpc_pipe_generic_upcall [2022-12-14 12:36:29,240 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:36:29,250 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_register [2022-12-14 12:36:29,250 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-12-14 12:36:29,251 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-12-14 12:36:29,256 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:36:29,271 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:36:29,276 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:36:29,317 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 12:36:29,331 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 12:36:29,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,402 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,408 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,422 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,423 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,441 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,461 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,461 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,462 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,463 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,463 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,464 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,465 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,473 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,474 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,474 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,481 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,482 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,488 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,488 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,489 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,495 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,497 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,498 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,499 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,502 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,508 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,511 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-12-14 12:36:29,511 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-12-14 12:36:29,512 WARN L623 FunctionHandler]: Unknown extern function xdr_encode_opaque_fixed [2022-12-14 12:36:29,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,525 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,526 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,536 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,536 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,536 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,538 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,538 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,538 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,540 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,540 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,630 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:29,630 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:36:29,631 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:36:29,631 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:36:29,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,678 WARN L623 FunctionHandler]: Unknown extern function blkdev_put [2022-12-14 12:36:29,679 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:36:29,679 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:36:29,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,683 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,683 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:36:29,683 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-12-14 12:36:29,683 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:29,684 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 12:36:29,684 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:36:29,684 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:29,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,685 WARN L623 FunctionHandler]: Unknown extern function blkdev_get_by_dev [2022-12-14 12:36:29,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,687 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,693 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:36:29,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,702 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,702 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 12:36:29,703 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 12:36:29,703 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 12:36:29,703 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,703 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 12:36:29,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,706 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,706 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,706 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,707 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:29,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,708 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:29,714 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:29,719 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:29,735 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:29,735 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:29,735 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:29,741 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:29,741 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:29,742 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:29,749 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:29,749 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:29,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,759 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:36:29,759 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-12-14 12:36:29,759 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:29,760 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 12:36:29,760 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:36:29,760 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:29,760 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:29,767 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:29,835 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 12:36:29,836 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:36:29,846 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:36:30,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-12-14 12:36:30,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-12-14 12:36:30,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-12-14 12:36:30,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-12-14 12:36:30,615 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,616 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,616 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,616 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,617 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,617 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,629 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,629 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,629 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,629 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,630 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,630 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,630 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:36:30,644 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:36:30,718 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:36:30,720 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:30,721 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 12:36:30,721 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:30,722 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:30,722 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:36:30,723 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:36:30,723 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-12-14 12:36:30,723 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-12-14 12:36:30,724 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,724 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:30,724 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 12:36:30,724 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 12:36:30,724 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,725 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:30,725 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,725 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,725 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:30,725 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,726 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:36:30,726 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 12:36:30,727 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:36:30,727 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:36:30,730 WARN L623 FunctionHandler]: Unknown extern function test_set_page_writeback [2022-12-14 12:36:30,731 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_206 [2022-12-14 12:36:30,731 WARN L623 FunctionHandler]: Unknown extern function bio_alloc_bioset [2022-12-14 12:36:30,732 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:36:30,732 WARN L623 FunctionHandler]: Unknown extern function __lock_page [2022-12-14 12:36:30,732 WARN L623 FunctionHandler]: Unknown extern function wait_on_page_bit [2022-12-14 12:36:30,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,735 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,736 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,737 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:30,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,761 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,762 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 12:36:30,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,765 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-12-14 12:36:30,767 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:30,767 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:30,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,768 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_read_done [2022-12-14 12:36:30,768 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:36:30,769 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:36:30,771 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,776 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:30,777 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:30,778 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:30,778 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:30,778 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_lo_fail [2022-12-14 12:36:30,779 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:30,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,780 WARN L623 FunctionHandler]: Unknown extern function pnfs_ld_write_done [2022-12-14 12:36:30,780 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:36:30,781 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:36:30,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,782 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,783 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:30,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,784 WARN L623 FunctionHandler]: Unknown extern function bio_add_page [2022-12-14 12:36:30,785 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:30,785 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:30,785 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 12:36:30,785 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_535 [2022-12-14 12:36:30,786 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_536 [2022-12-14 12:36:30,786 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:30,786 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 12:36:30,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,787 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:30,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,788 WARN L623 FunctionHandler]: Unknown extern function alloc_page_buffers [2022-12-14 12:36:30,788 WARN L623 FunctionHandler]: Unknown extern function bh_uptodate_or_lock [2022-12-14 12:36:30,788 WARN L623 FunctionHandler]: Unknown extern function bh_submit_read [2022-12-14 12:36:30,789 WARN L623 FunctionHandler]: Unknown extern function free_buffer_head [2022-12-14 12:36:30,789 WARN L623 FunctionHandler]: Unknown extern function find_get_page [2022-12-14 12:36:30,789 WARN L623 FunctionHandler]: Unknown extern function find_or_create_page [2022-12-14 12:36:30,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,790 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:30,790 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:30,790 WARN L623 FunctionHandler]: Unknown extern function unlock_page [2022-12-14 12:36:30,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,796 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:30,796 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:30,797 WARN L623 FunctionHandler]: Unknown extern function end_page_writeback [2022-12-14 12:36:30,797 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 12:36:30,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,801 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,802 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,803 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,803 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,804 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,804 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,805 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,805 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:30,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,806 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,807 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,809 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,810 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,812 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,813 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-12-14 12:36:30,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,813 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:30,814 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,814 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,815 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,815 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:36:30,816 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdevicelist [2022-12-14 12:36:30,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,817 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,818 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 12:36:30,818 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-12-14 12:36:30,818 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_read [2022-12-14 12:36:30,819 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 12:36:30,819 WARN L623 FunctionHandler]: Unknown extern function radix_tree_next_hole [2022-12-14 12:36:30,820 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-12-14 12:36:30,820 WARN L623 FunctionHandler]: Unknown extern function nfs_dreq_bytes_left [2022-12-14 12:36:30,821 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_init_write [2022-12-14 12:36:30,821 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 12:36:30,822 WARN L623 FunctionHandler]: Unknown extern function rpc_d_lookup_sb [2022-12-14 12:36:30,823 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_dentry [2022-12-14 12:36:30,823 WARN L623 FunctionHandler]: Unknown extern function dput [2022-12-14 12:36:30,823 WARN L623 FunctionHandler]: Unknown extern function rpc_unlink [2022-12-14 12:36:30,824 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 12:36:30,824 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:30,825 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:30,825 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-12-14 12:36:30,826 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-12-14 12:36:30,826 WARN L623 FunctionHandler]: Unknown extern function rpc_get_sb_net [2022-12-14 12:36:30,826 WARN L623 FunctionHandler]: Unknown extern function rpc_put_sb_net [2022-12-14 12:36:30,826 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:36:30,826 WARN L623 FunctionHandler]: Unknown extern function rpc_mkpipe_data [2022-12-14 12:36:30,827 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-12-14 12:36:30,827 WARN L623 FunctionHandler]: Unknown extern function rpc_destroy_pipe_data [2022-12-14 12:36:30,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,828 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-12-14 12:36:30,828 WARN L623 FunctionHandler]: Unknown extern function register_pernet_subsys [2022-12-14 12:36:30,828 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 12:36:30,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,829 WARN L623 FunctionHandler]: Unknown extern function unregister_pernet_subsys [2022-12-14 12:36:30,829 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 12:36:30,832 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,832 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,832 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,832 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,833 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,836 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,836 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,836 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,836 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,837 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-12-14 12:36:30,838 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-12-14 12:36:30,839 WARN L623 FunctionHandler]: Unknown extern function rpc_pipe_generic_upcall [2022-12-14 12:36:30,840 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:36:30,846 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_register [2022-12-14 12:36:30,847 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-12-14 12:36:30,847 WARN L623 FunctionHandler]: Unknown extern function rpc_pipefs_notifier_unregister [2022-12-14 12:36:30,847 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:36:30,847 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:36:30,848 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:36:30,848 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 12:36:30,848 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 12:36:30,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,854 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,856 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,856 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,857 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,860 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,860 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,863 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,863 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,864 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,864 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,865 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,866 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,870 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,870 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,870 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,883 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,885 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,886 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,886 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,887 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,890 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,894 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-12-14 12:36:30,894 WARN L623 FunctionHandler]: Unknown extern function xdr_reserve_space [2022-12-14 12:36:30,894 WARN L623 FunctionHandler]: Unknown extern function xdr_encode_opaque_fixed [2022-12-14 12:36:30,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,897 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,898 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,902 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,902 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,902 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,903 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,904 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,904 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,904 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,906 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,906 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,908 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:30,909 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:36:30,909 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:36:30,909 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:36:30,910 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,911 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,911 WARN L623 FunctionHandler]: Unknown extern function blkdev_put [2022-12-14 12:36:30,912 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:36:30,912 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:36:30,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,916 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:36:30,916 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-12-14 12:36:30,917 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:30,917 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 12:36:30,917 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:36:30,918 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:30,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,918 WARN L623 FunctionHandler]: Unknown extern function blkdev_get_by_dev [2022-12-14 12:36:30,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,920 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,922 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:36:30,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,926 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 12:36:30,927 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 12:36:30,927 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 12:36:30,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,928 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 12:36:30,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,931 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,932 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:36:30,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,933 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:36:30,934 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:30,935 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:30,935 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,935 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:30,936 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,936 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,936 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:36:30,936 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,937 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:30,937 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:36:30,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,941 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:36:30,941 WARN L623 FunctionHandler]: Unknown extern function rpc_queue_upcall [2022-12-14 12:36:30,941 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:30,942 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 12:36:30,942 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:36:30,942 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:36:30,942 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:36:30,944 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:30,947 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 12:36:30,947 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:36:30,947 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:36:30,972 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-12-14 12:36:30,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-12-14 12:36:30,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-12-14 12:36:30,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-12-14 12:36:30,975 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,975 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,975 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,976 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,976 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,976 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,978 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,978 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,979 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,979 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,980 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,980 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,980 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:36:30,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:36:31,123 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:36:31,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31 WrapperNode [2022-12-14 12:36:31,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:36:31,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:36:31,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:36:31,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:36:31,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,327 INFO L138 Inliner]: procedures = 584, calls = 2495, calls flagged for inlining = 241, calls inlined = 220, statements flattened = 7033 [2022-12-14 12:36:31,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:36:31,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:36:31,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:36:31,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:36:31,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:36:31,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:36:31,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:36:31,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:36:31,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (1/1) ... [2022-12-14 12:36:31,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:36:31,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:36:31,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:36:31,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:36:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2022-12-14 12:36:31,699 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2022-12-14 12:36:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_commitlist [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_commitlist [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_put_sb_net [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_put_sb_net [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 12:36:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 12:36:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_pagelist [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_pagelist [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure bio_alloc [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_alloc [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_unregister_layoutdriver [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_unregister_layoutdriver [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure trylock_page [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure trylock_page [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-12-14 12:36:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LSEG2EXT [2022-12-14 12:36:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LSEG2EXT [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_unregister_sb [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_unregister_sb [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LO2EXT [2022-12-14 12:36:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LO2EXT [2022-12-14 12:36:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure print_page [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure print_page [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure PageWriteback [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure PageWriteback [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2022-12-14 12:36:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2022-12-14 12:36:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure print_clist [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure print_clist [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segments [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segments [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 12:36:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 12:36:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_layout_hdr [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_layout_hdr [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure PageDirty [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure PageDirty [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure is_writable [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure is_writable [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure normalize [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-12-14 12:36:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:36:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_net_exit [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_net_exit [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_get_sb_net [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_get_sb_net [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure extents_consistent [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure extents_consistent [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister [2022-12-14 12:36:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure bl_submit_bio [2022-12-14 12:36:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_submit_bio [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_queue_upcall [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_queue_upcall [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:36:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 12:36:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2022-12-14 12:36:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 12:36:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_lseg [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_lseg [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure end_page_writeback [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure end_page_writeback [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure print_elist [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure print_elist [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 12:36:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 12:36:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure PageLocked [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure PageLocked [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_test [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_test [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_destroy_pipe_data [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_destroy_pipe_data [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_parallel [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_parallel [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure bl_is_sector_init [2022-12-14 12:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_is_sector_init [2022-12-14 12:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure bl_clear_layoutdriver [2022-12-14 12:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_clear_layoutdriver [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 12:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pipe_destroy_msg [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pipe_destroy_msg [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_pagelist [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_pagelist [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure print_bl_extent [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure print_bl_extent [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2022-12-14 12:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-12-14 12:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_encode_hyper [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_encode_hyper [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure bl_mark_sectors_init [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_mark_sectors_init [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure free_blk_mountid [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure free_blk_mountid [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 12:36:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure is_range_written [2022-12-14 12:36:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure is_range_written [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure list_replace [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure list_replace [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-12-14 12:36:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure is_aligned_req [2022-12-14 12:36:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure is_aligned_req [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure _prep_new_extent [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure _prep_new_extent [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure print_short_extent [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure print_short_extent [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_reserve_space [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_reserve_space [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 12:36:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 12:36:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_notifier_unregister [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_notifier_unregister [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure bl_push_one_short_extent [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_push_one_short_extent [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-12-14 12:36:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-12-14 12:36:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure _set_range [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_range [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure bl_encode_layoutcommit [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_encode_layoutcommit [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure _add_entry [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure _add_entry [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2022-12-14 12:36:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2022-12-14 12:36:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure do_add_page_to_bio [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure do_add_page_to_bio [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_lseg [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_lseg [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 12:36:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 12:36:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_register_sb [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_register_sb [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segment [2022-12-14 12:36:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segment [2022-12-14 12:36:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure decode_sector_number [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_sector_number [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_partial_page_sync [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_partial_page_sync [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_init_read [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_init_read [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2022-12-14 12:36:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2022-12-14 12:36:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure bio_add_page [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_add_page [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-12-14 12:36:31,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-12-14 12:36:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure bl_do_readpage_sync [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_do_readpage_sync [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure bl_set_layoutdriver [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_set_layoutdriver [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_up [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_up [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-12-14 12:36:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-12-14 12:36:31,722 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-12-14 12:36:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-12-14 12:36:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:36:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 12:36:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 12:36:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_set_lo_fail [2022-12-14 12:36:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_set_lo_fail [2022-12-14 12:36:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2022-12-14 12:36:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2022-12-14 12:36:32,466 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:36:32,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:36:32,673 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 12:36:38,388 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 12:36:38,548 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:36:40,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:36:40,001 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 12:36:40,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:36:40 BoogieIcfgContainer [2022-12-14 12:36:40,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:36:40,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:36:40,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:36:40,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:36:40,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:36:27" (1/3) ... [2022-12-14 12:36:40,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4226d411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:36:40, skipping insertion in model container [2022-12-14 12:36:40,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:31" (2/3) ... [2022-12-14 12:36:40,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4226d411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:36:40, skipping insertion in model container [2022-12-14 12:36:40,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:36:40" (3/3) ... [2022-12-14 12:36:40,011 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-12-14 12:36:40,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:36:40,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 12:36:40,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:36:40,115 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;@23b6c417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:36:40,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 12:36:40,125 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) [2022-12-14 12:36:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-12-14 12:36:40,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:40,152 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] [2022-12-14 12:36:40,152 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)] === [2022-12-14 12:36:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1689585813, now seen corresponding path program 1 times [2022-12-14 12:36:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:40,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011013255] [2022-12-14 12:36:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 12:36:40,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:40,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011013255] [2022-12-14 12:36:40,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011013255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:40,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:40,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:36:40,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626378970] [2022-12-14 12:36:40,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:40,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:36:40,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:36:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:40,883 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) [2022-12-14 12:36:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:43,104 INFO L93 Difference]: Finished difference Result 6902 states and 10251 transitions. [2022-12-14 12:36:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:36:43,106 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 [2022-12-14 12:36:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:43,136 INFO L225 Difference]: With dead ends: 6902 [2022-12-14 12:36:43,137 INFO L226 Difference]: Without dead ends: 4568 [2022-12-14 12:36:43,152 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 [2022-12-14 12:36:43,154 INFO L413 NwaCegarLoop]: 3736 mSDtfsCounter, 3196 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 6659 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:43,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 6659 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 12:36:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2022-12-14 12:36:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4564. [2022-12-14 12:36:43,373 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) [2022-12-14 12:36:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6550 transitions. [2022-12-14 12:36:43,425 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6550 transitions. Word has length 365 [2022-12-14 12:36:43,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:43,427 INFO L495 AbstractCegarLoop]: Abstraction has 4564 states and 6550 transitions. [2022-12-14 12:36:43,427 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) [2022-12-14 12:36:43,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6550 transitions. [2022-12-14 12:36:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-12-14 12:36:43,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:43,437 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] [2022-12-14 12:36:43,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:36:43,437 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)] === [2022-12-14 12:36:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1926675439, now seen corresponding path program 1 times [2022-12-14 12:36:43,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:43,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740985171] [2022-12-14 12:36:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:43,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 12:36:43,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:43,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740985171] [2022-12-14 12:36:43,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740985171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:43,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:43,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:36:43,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545713551] [2022-12-14 12:36:43,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:43,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:36:43,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:43,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:36:43,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:43,747 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) [2022-12-14 12:36:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:45,757 INFO L93 Difference]: Finished difference Result 11250 states and 16115 transitions. [2022-12-14 12:36:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:36:45,758 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 [2022-12-14 12:36:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:45,801 INFO L225 Difference]: With dead ends: 11250 [2022-12-14 12:36:45,801 INFO L226 Difference]: Without dead ends: 6755 [2022-12-14 12:36:45,816 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 [2022-12-14 12:36:45,817 INFO L413 NwaCegarLoop]: 3747 mSDtfsCounter, 3186 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:45,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 6680 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 12:36:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6755 states. [2022-12-14 12:36:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6755 to 6722. [2022-12-14 12:36:46,072 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) [2022-12-14 12:36:46,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6722 states to 6722 states and 9611 transitions. [2022-12-14 12:36:46,096 INFO L78 Accepts]: Start accepts. Automaton has 6722 states and 9611 transitions. Word has length 378 [2022-12-14 12:36:46,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:46,097 INFO L495 AbstractCegarLoop]: Abstraction has 6722 states and 9611 transitions. [2022-12-14 12:36:46,097 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) [2022-12-14 12:36:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6722 states and 9611 transitions. [2022-12-14 12:36:46,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-12-14 12:36:46,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:46,103 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] [2022-12-14 12:36:46,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:36:46,104 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)] === [2022-12-14 12:36:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash -718160445, now seen corresponding path program 1 times [2022-12-14 12:36:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:46,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037131456] [2022-12-14 12:36:46,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:46,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 12:36:46,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:46,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037131456] [2022-12-14 12:36:46,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037131456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:46,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:46,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:36:46,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359712324] [2022-12-14 12:36:46,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:46,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:36:46,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:36:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:46,314 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) [2022-12-14 12:36:48,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:48,021 INFO L93 Difference]: Finished difference Result 14179 states and 20210 transitions. [2022-12-14 12:36:48,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:36:48,021 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 [2022-12-14 12:36:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:48,050 INFO L225 Difference]: With dead ends: 14179 [2022-12-14 12:36:48,050 INFO L226 Difference]: Without dead ends: 7526 [2022-12-14 12:36:48,067 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 [2022-12-14 12:36:48,068 INFO L413 NwaCegarLoop]: 4416 mSDtfsCounter, 3166 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 7349 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:48,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 7349 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 12:36:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2022-12-14 12:36:48,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7493. [2022-12-14 12:36:48,448 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) [2022-12-14 12:36:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7493 states to 7493 states and 10640 transitions. [2022-12-14 12:36:48,486 INFO L78 Accepts]: Start accepts. Automaton has 7493 states and 10640 transitions. Word has length 379 [2022-12-14 12:36:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:48,487 INFO L495 AbstractCegarLoop]: Abstraction has 7493 states and 10640 transitions. [2022-12-14 12:36:48,487 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) [2022-12-14 12:36:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 7493 states and 10640 transitions. [2022-12-14 12:36:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-12-14 12:36:48,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:48,496 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] [2022-12-14 12:36:48,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:36:48,496 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)] === [2022-12-14 12:36:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:48,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1257790876, now seen corresponding path program 1 times [2022-12-14 12:36:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:48,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740608347] [2022-12-14 12:36:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:48,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4720 trivial. 0 not checked. [2022-12-14 12:36:49,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:49,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740608347] [2022-12-14 12:36:49,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740608347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:49,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:49,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:36:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559146289] [2022-12-14 12:36:49,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:49,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:36:49,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:36:49,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:36:49,081 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) [2022-12-14 12:36:50,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:50,763 INFO L93 Difference]: Finished difference Result 7499 states and 10645 transitions. [2022-12-14 12:36:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:36:50,764 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 [2022-12-14 12:36:50,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:50,791 INFO L225 Difference]: With dead ends: 7499 [2022-12-14 12:36:50,791 INFO L226 Difference]: Without dead ends: 7497 [2022-12-14 12:36:50,798 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 [2022-12-14 12:36:50,799 INFO L413 NwaCegarLoop]: 2960 mSDtfsCounter, 3295 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:50,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 8861 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 12:36:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2022-12-14 12:36:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 7497. [2022-12-14 12:36:51,057 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) [2022-12-14 12:36:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 10643 transitions. [2022-12-14 12:36:51,080 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 10643 transitions. Word has length 407 [2022-12-14 12:36:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:51,081 INFO L495 AbstractCegarLoop]: Abstraction has 7497 states and 10643 transitions. [2022-12-14 12:36:51,081 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) [2022-12-14 12:36:51,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 10643 transitions. [2022-12-14 12:36:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-12-14 12:36:51,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:51,084 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] [2022-12-14 12:36:51,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:36:51,084 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)] === [2022-12-14 12:36:51,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:51,085 INFO L85 PathProgramCache]: Analyzing trace with hash 345741915, now seen corresponding path program 1 times [2022-12-14 12:36:51,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:51,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564096934] [2022-12-14 12:36:51,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:51,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4722 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4720 trivial. 0 not checked. [2022-12-14 12:36:51,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564096934] [2022-12-14 12:36:51,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564096934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:51,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:51,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:36:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835201219] [2022-12-14 12:36:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:51,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:36:51,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:36:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:36:51,532 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) [2022-12-14 12:36:53,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:53,206 INFO L93 Difference]: Finished difference Result 7503 states and 10648 transitions. [2022-12-14 12:36:53,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:36:53,207 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 [2022-12-14 12:36:53,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:53,230 INFO L225 Difference]: With dead ends: 7503 [2022-12-14 12:36:53,230 INFO L226 Difference]: Without dead ends: 7501 [2022-12-14 12:36:53,233 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 [2022-12-14 12:36:53,234 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:53,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:36:53,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2022-12-14 12:36:53,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7501. [2022-12-14 12:36:53,562 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) [2022-12-14 12:36:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 10646 transitions. [2022-12-14 12:36:53,586 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 10646 transitions. Word has length 412 [2022-12-14 12:36:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:53,586 INFO L495 AbstractCegarLoop]: Abstraction has 7501 states and 10646 transitions. [2022-12-14 12:36:53,586 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) [2022-12-14 12:36:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 10646 transitions. [2022-12-14 12:36:53,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-12-14 12:36:53,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:53,591 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] [2022-12-14 12:36:53,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:36:53,591 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)] === [2022-12-14 12:36:53,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2119658308, now seen corresponding path program 1 times [2022-12-14 12:36:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:53,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260564229] [2022-12-14 12:36:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4728 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4724 trivial. 0 not checked. [2022-12-14 12:36:54,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260564229] [2022-12-14 12:36:54,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260564229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:54,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:36:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407436614] [2022-12-14 12:36:54,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:54,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:36:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:54,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:36:54,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:36:54,125 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) [2022-12-14 12:36:55,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:55,874 INFO L93 Difference]: Finished difference Result 7507 states and 10651 transitions. [2022-12-14 12:36:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:36:55,874 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 [2022-12-14 12:36:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:55,893 INFO L225 Difference]: With dead ends: 7507 [2022-12-14 12:36:55,893 INFO L226 Difference]: Without dead ends: 7505 [2022-12-14 12:36:55,897 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 [2022-12-14 12:36:55,897 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 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, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:55,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 12:36:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-12-14 12:36:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7505. [2022-12-14 12:36:56,167 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) [2022-12-14 12:36:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 10649 transitions. [2022-12-14 12:36:56,186 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 10649 transitions. Word has length 417 [2022-12-14 12:36:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:56,187 INFO L495 AbstractCegarLoop]: Abstraction has 7505 states and 10649 transitions. [2022-12-14 12:36:56,187 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) [2022-12-14 12:36:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 10649 transitions. [2022-12-14 12:36:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-12-14 12:36:56,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:56,190 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:36:56,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:36:56,191 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)] === [2022-12-14 12:36:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:56,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1656027461, now seen corresponding path program 1 times [2022-12-14 12:36:56,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:56,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364677315] [2022-12-14 12:36:56,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:56,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4738 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4732 trivial. 0 not checked. [2022-12-14 12:36:56,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364677315] [2022-12-14 12:36:56,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364677315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:56,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:56,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:36:56,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459469149] [2022-12-14 12:36:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:56,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:36:56,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:56,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:36:56,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:36:56,586 INFO L87 Difference]: Start difference. First operand 7505 states and 10649 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, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:36:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:58,654 INFO L93 Difference]: Finished difference Result 9327 states and 13140 transitions. [2022-12-14 12:36:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:36:58,654 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, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 422 [2022-12-14 12:36:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:58,679 INFO L225 Difference]: With dead ends: 9327 [2022-12-14 12:36:58,679 INFO L226 Difference]: Without dead ends: 9325 [2022-12-14 12:36:58,682 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 [2022-12-14 12:36:58,683 INFO L413 NwaCegarLoop]: 3484 mSDtfsCounter, 3128 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 11288 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:58,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 11288 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 12:36:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9325 states. [2022-12-14 12:36:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9325 to 9315. [2022-12-14 12:36:59,139 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) [2022-12-14 12:36:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9315 states to 9315 states and 13130 transitions. [2022-12-14 12:36:59,167 INFO L78 Accepts]: Start accepts. Automaton has 9315 states and 13130 transitions. Word has length 422 [2022-12-14 12:36:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:59,167 INFO L495 AbstractCegarLoop]: Abstraction has 9315 states and 13130 transitions. [2022-12-14 12:36:59,168 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, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:36:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 9315 states and 13130 transitions. [2022-12-14 12:36:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-12-14 12:36:59,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:59,174 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 5, 4, 4, 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] [2022-12-14 12:36:59,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:36:59,174 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)] === [2022-12-14 12:36:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash -37219364, now seen corresponding path program 1 times [2022-12-14 12:36:59,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:59,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042548725] [2022-12-14 12:36:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:59,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4744 trivial. 0 not checked. [2022-12-14 12:36:59,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:59,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042548725] [2022-12-14 12:36:59,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042548725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:59,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:59,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:36:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716651840] [2022-12-14 12:36:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:36:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:36:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:36:59,555 INFO L87 Difference]: Start difference. First operand 9315 states and 13130 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, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:37:01,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:01,052 INFO L93 Difference]: Finished difference Result 9368 states and 13172 transitions. [2022-12-14 12:37:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:01,053 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, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 427 [2022-12-14 12:37:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:01,072 INFO L225 Difference]: With dead ends: 9368 [2022-12-14 12:37:01,072 INFO L226 Difference]: Without dead ends: 9366 [2022-12-14 12:37:01,075 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 [2022-12-14 12:37:01,076 INFO L413 NwaCegarLoop]: 2966 mSDtfsCounter, 3269 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 8900 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:01,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 8900 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 12:37:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9366 states. [2022-12-14 12:37:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9366 to 9364. [2022-12-14 12:37:01,467 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) [2022-12-14 12:37:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9364 states to 9364 states and 13169 transitions. [2022-12-14 12:37:01,491 INFO L78 Accepts]: Start accepts. Automaton has 9364 states and 13169 transitions. Word has length 427 [2022-12-14 12:37:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:01,492 INFO L495 AbstractCegarLoop]: Abstraction has 9364 states and 13169 transitions. [2022-12-14 12:37:01,492 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, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:37:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9364 states and 13169 transitions. [2022-12-14 12:37:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-12-14 12:37:01,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:01,497 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 6, 5, 5, 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] [2022-12-14 12:37:01,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:37:01,497 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)] === [2022-12-14 12:37:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash -999144936, now seen corresponding path program 1 times [2022-12-14 12:37:01,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624728731] [2022-12-14 12:37:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4773 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4763 trivial. 0 not checked. [2022-12-14 12:37:01,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624728731] [2022-12-14 12:37:01,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624728731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:01,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:01,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494944142] [2022-12-14 12:37:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:01,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:01,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:01,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:01,854 INFO L87 Difference]: Start difference. First operand 9364 states and 13169 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 12:37:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:04,136 INFO L93 Difference]: Finished difference Result 9370 states and 13174 transitions. [2022-12-14 12:37:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:04,137 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 447 [2022-12-14 12:37:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:04,162 INFO L225 Difference]: With dead ends: 9370 [2022-12-14 12:37:04,162 INFO L226 Difference]: Without dead ends: 9368 [2022-12-14 12:37:04,167 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 [2022-12-14 12:37:04,167 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, 3301 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 [2022-12-14 12:37:04,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 12:37:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9368 states. [2022-12-14 12:37:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9368 to 9368. [2022-12-14 12:37:04,629 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) [2022-12-14 12:37:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 13172 transitions. [2022-12-14 12:37:04,656 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 13172 transitions. Word has length 447 [2022-12-14 12:37:04,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:04,656 INFO L495 AbstractCegarLoop]: Abstraction has 9368 states and 13172 transitions. [2022-12-14 12:37:04,656 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, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 12:37:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 13172 transitions. [2022-12-14 12:37:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-12-14 12:37:04,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:04,662 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 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] [2022-12-14 12:37:04,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:37:04,662 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)] === [2022-12-14 12:37:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 223640914, now seen corresponding path program 1 times [2022-12-14 12:37:04,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:04,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134417025] [2022-12-14 12:37:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4794 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4782 trivial. 0 not checked. [2022-12-14 12:37:05,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:05,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134417025] [2022-12-14 12:37:05,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134417025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:05,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:05,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939109238] [2022-12-14 12:37:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:05,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:05,077 INFO L87 Difference]: Start difference. First operand 9368 states and 13172 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 12:37:07,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:07,370 INFO L93 Difference]: Finished difference Result 9374 states and 13177 transitions. [2022-12-14 12:37:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:07,371 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 451 [2022-12-14 12:37:07,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:07,388 INFO L225 Difference]: With dead ends: 9374 [2022-12-14 12:37:07,388 INFO L226 Difference]: Without dead ends: 9372 [2022-12-14 12:37:07,390 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 [2022-12-14 12:37:07,391 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, 3300 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 [2022-12-14 12:37:07,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 12:37:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9372 states. [2022-12-14 12:37:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9372 to 9372. [2022-12-14 12:37:07,855 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) [2022-12-14 12:37:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9372 states to 9372 states and 13175 transitions. [2022-12-14 12:37:07,888 INFO L78 Accepts]: Start accepts. Automaton has 9372 states and 13175 transitions. Word has length 451 [2022-12-14 12:37:07,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:07,889 INFO L495 AbstractCegarLoop]: Abstraction has 9372 states and 13175 transitions. [2022-12-14 12:37:07,889 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 12:37:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 9372 states and 13175 transitions. [2022-12-14 12:37:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-12-14 12:37:07,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:07,896 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] [2022-12-14 12:37:07,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:37:07,896 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)] === [2022-12-14 12:37:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:07,897 INFO L85 PathProgramCache]: Analyzing trace with hash -644359170, now seen corresponding path program 1 times [2022-12-14 12:37:07,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:07,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733503980] [2022-12-14 12:37:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:07,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4793 trivial. 0 not checked. [2022-12-14 12:37:08,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:08,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733503980] [2022-12-14 12:37:08,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733503980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:08,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:08,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:37:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525672208] [2022-12-14 12:37:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:08,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:37:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:37:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:37:08,136 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) [2022-12-14 12:37:10,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:10,161 INFO L93 Difference]: Finished difference Result 21643 states and 30421 transitions. [2022-12-14 12:37:10,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:37:10,161 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 [2022-12-14 12:37:10,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:10,191 INFO L225 Difference]: With dead ends: 21643 [2022-12-14 12:37:10,191 INFO L226 Difference]: Without dead ends: 12642 [2022-12-14 12:37:10,213 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 [2022-12-14 12:37:10,213 INFO L413 NwaCegarLoop]: 4372 mSDtfsCounter, 3166 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 7303 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:10,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 7303 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:37:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12642 states. [2022-12-14 12:37:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12642 to 12581. [2022-12-14 12:37:10,824 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) [2022-12-14 12:37:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12581 states to 12581 states and 17675 transitions. [2022-12-14 12:37:10,862 INFO L78 Accepts]: Start accepts. Automaton has 12581 states and 17675 transitions. Word has length 439 [2022-12-14 12:37:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:10,862 INFO L495 AbstractCegarLoop]: Abstraction has 12581 states and 17675 transitions. [2022-12-14 12:37:10,862 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) [2022-12-14 12:37:10,863 INFO L276 IsEmpty]: Start isEmpty. Operand 12581 states and 17675 transitions. [2022-12-14 12:37:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-12-14 12:37:10,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:10,867 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] [2022-12-14 12:37:10,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:37:10,868 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)] === [2022-12-14 12:37:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash 985199222, now seen corresponding path program 1 times [2022-12-14 12:37:10,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:10,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977729507] [2022-12-14 12:37:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:10,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4793 trivial. 0 not checked. [2022-12-14 12:37:11,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:11,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977729507] [2022-12-14 12:37:11,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977729507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:11,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:11,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:37:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563791926] [2022-12-14 12:37:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:11,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:37:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:37:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:37:11,020 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) [2022-12-14 12:37:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:13,776 INFO L93 Difference]: Finished difference Result 28462 states and 39964 transitions. [2022-12-14 12:37:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:37:13,776 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 [2022-12-14 12:37:13,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:13,827 INFO L225 Difference]: With dead ends: 28462 [2022-12-14 12:37:13,827 INFO L226 Difference]: Without dead ends: 16252 [2022-12-14 12:37:13,861 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 [2022-12-14 12:37:13,861 INFO L413 NwaCegarLoop]: 5212 mSDtfsCounter, 3186 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 8143 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:13,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 8143 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 12:37:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16252 states. [2022-12-14 12:37:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16252 to 16191. [2022-12-14 12:37:14,782 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) [2022-12-14 12:37:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 22714 transitions. [2022-12-14 12:37:14,829 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 22714 transitions. Word has length 438 [2022-12-14 12:37:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:14,829 INFO L495 AbstractCegarLoop]: Abstraction has 16191 states and 22714 transitions. [2022-12-14 12:37:14,829 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) [2022-12-14 12:37:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 22714 transitions. [2022-12-14 12:37:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-14 12:37:14,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:14,834 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 8, 7, 7, 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] [2022-12-14 12:37:14,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:37:14,834 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)] === [2022-12-14 12:37:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:14,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1992594715, now seen corresponding path program 1 times [2022-12-14 12:37:14,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:14,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838467872] [2022-12-14 12:37:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:14,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4820 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-12-14 12:37:15,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:15,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838467872] [2022-12-14 12:37:15,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838467872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:15,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:15,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:15,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154489763] [2022-12-14 12:37:15,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:15,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:15,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:15,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:15,166 INFO L87 Difference]: Start difference. First operand 16191 states and 22714 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, (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) [2022-12-14 12:37:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:17,194 INFO L93 Difference]: Finished difference Result 16389 states and 22850 transitions. [2022-12-14 12:37:17,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:17,194 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, (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 456 [2022-12-14 12:37:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:17,235 INFO L225 Difference]: With dead ends: 16389 [2022-12-14 12:37:17,235 INFO L226 Difference]: Without dead ends: 16387 [2022-12-14 12:37:17,242 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 [2022-12-14 12:37:17,242 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 3156 mSDsluCounter, 6027 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:17,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 8991 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:37:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16387 states. [2022-12-14 12:37:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16387 to 16385. [2022-12-14 12:37:18,056 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) [2022-12-14 12:37:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16385 states to 16385 states and 22847 transitions. [2022-12-14 12:37:18,108 INFO L78 Accepts]: Start accepts. Automaton has 16385 states and 22847 transitions. Word has length 456 [2022-12-14 12:37:18,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:18,108 INFO L495 AbstractCegarLoop]: Abstraction has 16385 states and 22847 transitions. [2022-12-14 12:37:18,109 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, (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) [2022-12-14 12:37:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16385 states and 22847 transitions. [2022-12-14 12:37:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-12-14 12:37:18,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:18,114 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 9, 8, 8, 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] [2022-12-14 12:37:18,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 12:37:18,114 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)] === [2022-12-14 12:37:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -454235620, now seen corresponding path program 1 times [2022-12-14 12:37:18,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:18,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35617694] [2022-12-14 12:37:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4848 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4832 trivial. 0 not checked. [2022-12-14 12:37:18,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:18,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35617694] [2022-12-14 12:37:18,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35617694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:18,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:18,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032066671] [2022-12-14 12:37:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:18,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:18,563 INFO L87 Difference]: Start difference. First operand 16385 states and 22847 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 12:37:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:20,976 INFO L93 Difference]: Finished difference Result 16391 states and 22852 transitions. [2022-12-14 12:37:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:20,976 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 447 [2022-12-14 12:37:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:21,012 INFO L225 Difference]: With dead ends: 16391 [2022-12-14 12:37:21,012 INFO L226 Difference]: Without dead ends: 16389 [2022-12-14 12:37:21,016 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 [2022-12-14 12:37:21,017 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:21,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:37:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16389 states. [2022-12-14 12:37:21,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16389 to 16389. [2022-12-14 12:37:21,871 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) [2022-12-14 12:37:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 22850 transitions. [2022-12-14 12:37:21,915 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 22850 transitions. Word has length 447 [2022-12-14 12:37:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:21,916 INFO L495 AbstractCegarLoop]: Abstraction has 16389 states and 22850 transitions. [2022-12-14 12:37:21,916 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 12:37:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 22850 transitions. [2022-12-14 12:37:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2022-12-14 12:37:21,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:21,922 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] [2022-12-14 12:37:21,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 12:37:21,922 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)] === [2022-12-14 12:37:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash 366039640, now seen corresponding path program 1 times [2022-12-14 12:37:21,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:21,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137477535] [2022-12-14 12:37:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:21,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4885 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4867 trivial. 0 not checked. [2022-12-14 12:37:22,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:22,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137477535] [2022-12-14 12:37:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137477535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:22,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:22,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001862699] [2022-12-14 12:37:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:22,238 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) [2022-12-14 12:37:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:24,888 INFO L93 Difference]: Finished difference Result 16395 states and 22855 transitions. [2022-12-14 12:37:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:24,889 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 [2022-12-14 12:37:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:24,928 INFO L225 Difference]: With dead ends: 16395 [2022-12-14 12:37:24,928 INFO L226 Difference]: Without dead ends: 16393 [2022-12-14 12:37:24,935 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 [2022-12-14 12:37:24,935 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:24,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 12:37:24,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16393 states. [2022-12-14 12:37:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16393 to 16393. [2022-12-14 12:37:25,851 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) [2022-12-14 12:37:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16393 states to 16393 states and 22853 transitions. [2022-12-14 12:37:25,901 INFO L78 Accepts]: Start accepts. Automaton has 16393 states and 22853 transitions. Word has length 467 [2022-12-14 12:37:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:25,901 INFO L495 AbstractCegarLoop]: Abstraction has 16393 states and 22853 transitions. [2022-12-14 12:37:25,901 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) [2022-12-14 12:37:25,902 INFO L276 IsEmpty]: Start isEmpty. Operand 16393 states and 22853 transitions. [2022-12-14 12:37:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-12-14 12:37:25,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:25,908 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 11, 10, 10, 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] [2022-12-14 12:37:25,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 12:37:25,908 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)] === [2022-12-14 12:37:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1216233788, now seen corresponding path program 1 times [2022-12-14 12:37:25,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:25,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108681934] [2022-12-14 12:37:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:25,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4920 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2022-12-14 12:37:26,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:26,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108681934] [2022-12-14 12:37:26,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108681934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:26,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:26,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:26,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141490410] [2022-12-14 12:37:26,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:26,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:26,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:26,218 INFO L87 Difference]: Start difference. First operand 16393 states and 22853 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, (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) [2022-12-14 12:37:28,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:28,995 INFO L93 Difference]: Finished difference Result 16399 states and 22858 transitions. [2022-12-14 12:37:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:28,995 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, (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 457 [2022-12-14 12:37:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:29,038 INFO L225 Difference]: With dead ends: 16399 [2022-12-14 12:37:29,038 INFO L226 Difference]: Without dead ends: 16397 [2022-12-14 12:37:29,046 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 [2022-12-14 12:37:29,046 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:29,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 12:37:29,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16397 states. [2022-12-14 12:37:30,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16397 to 16397. [2022-12-14 12:37:30,023 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) [2022-12-14 12:37:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 22856 transitions. [2022-12-14 12:37:30,074 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 22856 transitions. Word has length 457 [2022-12-14 12:37:30,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:30,075 INFO L495 AbstractCegarLoop]: Abstraction has 16397 states and 22856 transitions. [2022-12-14 12:37:30,075 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, (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) [2022-12-14 12:37:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 22856 transitions. [2022-12-14 12:37:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-12-14 12:37:30,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:30,082 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] [2022-12-14 12:37:30,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 12:37:30,083 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)] === [2022-12-14 12:37:30,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1991903902, now seen corresponding path program 1 times [2022-12-14 12:37:30,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:30,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692613969] [2022-12-14 12:37:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2022-12-14 12:37:30,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:30,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692613969] [2022-12-14 12:37:30,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692613969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:30,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:30,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:30,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130631235] [2022-12-14 12:37:30,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:30,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:30,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:30,573 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) [2022-12-14 12:37:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:33,331 INFO L93 Difference]: Finished difference Result 16433 states and 22889 transitions. [2022-12-14 12:37:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:37:33,331 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 [2022-12-14 12:37:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:33,375 INFO L225 Difference]: With dead ends: 16433 [2022-12-14 12:37:33,375 INFO L226 Difference]: Without dead ends: 16431 [2022-12-14 12:37:33,384 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 [2022-12-14 12:37:33,384 INFO L413 NwaCegarLoop]: 3495 mSDtfsCounter, 3119 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 11342 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:33,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3122 Valid, 11342 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 12:37:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16431 states. [2022-12-14 12:37:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16431 to 16417. [2022-12-14 12:37:34,349 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) [2022-12-14 12:37:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16417 states to 16417 states and 22871 transitions. [2022-12-14 12:37:34,439 INFO L78 Accepts]: Start accepts. Automaton has 16417 states and 22871 transitions. Word has length 455 [2022-12-14 12:37:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:34,439 INFO L495 AbstractCegarLoop]: Abstraction has 16417 states and 22871 transitions. [2022-12-14 12:37:34,439 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) [2022-12-14 12:37:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 16417 states and 22871 transitions. [2022-12-14 12:37:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-12-14 12:37:34,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:34,446 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] [2022-12-14 12:37:34,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 12:37:34,446 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)] === [2022-12-14 12:37:34,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1949079944, now seen corresponding path program 1 times [2022-12-14 12:37:34,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:34,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889245270] [2022-12-14 12:37:34,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:34,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4965 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4943 trivial. 0 not checked. [2022-12-14 12:37:34,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:34,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889245270] [2022-12-14 12:37:34,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889245270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:34,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:34,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:34,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834086041] [2022-12-14 12:37:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:34,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:34,768 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) [2022-12-14 12:37:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:37,836 INFO L93 Difference]: Finished difference Result 16423 states and 22876 transitions. [2022-12-14 12:37:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:37,836 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 [2022-12-14 12:37:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:37,871 INFO L225 Difference]: With dead ends: 16423 [2022-12-14 12:37:37,871 INFO L226 Difference]: Without dead ends: 16421 [2022-12-14 12:37:37,876 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 [2022-12-14 12:37:37,877 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, 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, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:37,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 12:37:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16421 states. [2022-12-14 12:37:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16421 to 16421. [2022-12-14 12:37:38,897 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) [2022-12-14 12:37:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16421 states to 16421 states and 22874 transitions. [2022-12-14 12:37:38,944 INFO L78 Accepts]: Start accepts. Automaton has 16421 states and 22874 transitions. Word has length 477 [2022-12-14 12:37:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:38,944 INFO L495 AbstractCegarLoop]: Abstraction has 16421 states and 22874 transitions. [2022-12-14 12:37:38,944 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) [2022-12-14 12:37:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 16421 states and 22874 transitions. [2022-12-14 12:37:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2022-12-14 12:37:38,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:38,952 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 13, 12, 12, 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] [2022-12-14 12:37:38,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 12:37:38,952 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)] === [2022-12-14 12:37:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1567170468, now seen corresponding path program 1 times [2022-12-14 12:37:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:38,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143393931] [2022-12-14 12:37:38,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:38,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5008 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4984 trivial. 0 not checked. [2022-12-14 12:37:39,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:39,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143393931] [2022-12-14 12:37:39,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143393931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:39,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:39,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:39,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672634561] [2022-12-14 12:37:39,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:39,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:39,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:39,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:39,260 INFO L87 Difference]: Start difference. First operand 16421 states and 22874 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 12:37:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:41,658 INFO L93 Difference]: Finished difference Result 16427 states and 22879 transitions. [2022-12-14 12:37:41,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:41,658 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 467 [2022-12-14 12:37:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:41,698 INFO L225 Difference]: With dead ends: 16427 [2022-12-14 12:37:41,698 INFO L226 Difference]: Without dead ends: 16425 [2022-12-14 12:37:41,705 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 [2022-12-14 12:37:41,705 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3290 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:41,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:37:41,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16425 states. [2022-12-14 12:37:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 16425. [2022-12-14 12:37:42,787 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) [2022-12-14 12:37:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16425 states to 16425 states and 22877 transitions. [2022-12-14 12:37:42,837 INFO L78 Accepts]: Start accepts. Automaton has 16425 states and 22877 transitions. Word has length 467 [2022-12-14 12:37:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:42,838 INFO L495 AbstractCegarLoop]: Abstraction has 16425 states and 22877 transitions. [2022-12-14 12:37:42,838 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, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 12:37:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 16425 states and 22877 transitions. [2022-12-14 12:37:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-12-14 12:37:42,847 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:42,847 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 14, 13, 13, 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] [2022-12-14 12:37:42,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 12:37:42,848 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)] === [2022-12-14 12:37:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash 936376965, now seen corresponding path program 1 times [2022-12-14 12:37:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:42,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020963157] [2022-12-14 12:37:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:42,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5060 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 5034 trivial. 0 not checked. [2022-12-14 12:37:43,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:43,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020963157] [2022-12-14 12:37:43,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020963157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:43,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:43,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:43,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209822924] [2022-12-14 12:37:43,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:43,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:43,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:43,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:43,187 INFO L87 Difference]: Start difference. First operand 16425 states and 22877 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, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 12:37:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:45,600 INFO L93 Difference]: Finished difference Result 16431 states and 22882 transitions. [2022-12-14 12:37:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:45,601 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, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 486 [2022-12-14 12:37:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:45,644 INFO L225 Difference]: With dead ends: 16431 [2022-12-14 12:37:45,644 INFO L226 Difference]: Without dead ends: 16429 [2022-12-14 12:37:45,652 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 [2022-12-14 12:37:45,653 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3293 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:45,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3293 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:37:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16429 states. [2022-12-14 12:37:46,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16429 to 16429. [2022-12-14 12:37:46,809 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) [2022-12-14 12:37:46,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16429 states to 16429 states and 22880 transitions. [2022-12-14 12:37:46,854 INFO L78 Accepts]: Start accepts. Automaton has 16429 states and 22880 transitions. Word has length 486 [2022-12-14 12:37:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:46,854 INFO L495 AbstractCegarLoop]: Abstraction has 16429 states and 22880 transitions. [2022-12-14 12:37:46,855 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, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 12:37:46,855 INFO L276 IsEmpty]: Start isEmpty. Operand 16429 states and 22880 transitions. [2022-12-14 12:37:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-12-14 12:37:46,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:46,864 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] [2022-12-14 12:37:46,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 12:37:46,865 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)] === [2022-12-14 12:37:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1906749184, now seen corresponding path program 1 times [2022-12-14 12:37:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:46,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347093076] [2022-12-14 12:37:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4979 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4979 trivial. 0 not checked. [2022-12-14 12:37:47,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:47,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347093076] [2022-12-14 12:37:47,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347093076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:47,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:47,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:37:47,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888703792] [2022-12-14 12:37:47,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:47,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:37:47,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:37:47,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:37:47,056 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) [2022-12-14 12:37:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:49,193 INFO L93 Difference]: Finished difference Result 32542 states and 45815 transitions. [2022-12-14 12:37:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:37:49,194 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 [2022-12-14 12:37:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:49,256 INFO L225 Difference]: With dead ends: 32542 [2022-12-14 12:37:49,256 INFO L226 Difference]: Without dead ends: 16484 [2022-12-14 12:37:49,299 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 [2022-12-14 12:37:49,300 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 3 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:49,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5921 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 12:37:49,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16484 states. [2022-12-14 12:37:50,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16484 to 16434. [2022-12-14 12:37:50,453 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) [2022-12-14 12:37:50,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16434 states to 16434 states and 22885 transitions. [2022-12-14 12:37:50,506 INFO L78 Accepts]: Start accepts. Automaton has 16434 states and 22885 transitions. Word has length 474 [2022-12-14 12:37:50,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:50,506 INFO L495 AbstractCegarLoop]: Abstraction has 16434 states and 22885 transitions. [2022-12-14 12:37:50,507 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) [2022-12-14 12:37:50,507 INFO L276 IsEmpty]: Start isEmpty. Operand 16434 states and 22885 transitions. [2022-12-14 12:37:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-12-14 12:37:50,517 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:50,517 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 15, 14, 14, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:37:50,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 12:37:50,518 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)] === [2022-12-14 12:37:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1496898514, now seen corresponding path program 1 times [2022-12-14 12:37:50,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:50,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406246774] [2022-12-14 12:37:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5086 trivial. 0 not checked. [2022-12-14 12:37:50,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:50,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406246774] [2022-12-14 12:37:50,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406246774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:50,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:50,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:50,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645079118] [2022-12-14 12:37:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:50,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:50,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:50,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:50,862 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) [2022-12-14 12:37:53,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:53,272 INFO L93 Difference]: Finished difference Result 16440 states and 22890 transitions. [2022-12-14 12:37:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:53,272 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 491 [2022-12-14 12:37:53,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:53,312 INFO L225 Difference]: With dead ends: 16440 [2022-12-14 12:37:53,312 INFO L226 Difference]: Without dead ends: 16438 [2022-12-14 12:37:53,317 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 [2022-12-14 12:37:53,317 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:53,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3292 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 12:37:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16438 states. [2022-12-14 12:37:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16438 to 16438. [2022-12-14 12:37:54,501 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) [2022-12-14 12:37:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16438 states to 16438 states and 22888 transitions. [2022-12-14 12:37:54,547 INFO L78 Accepts]: Start accepts. Automaton has 16438 states and 22888 transitions. Word has length 491 [2022-12-14 12:37:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:54,547 INFO L495 AbstractCegarLoop]: Abstraction has 16438 states and 22888 transitions. [2022-12-14 12:37:54,547 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) [2022-12-14 12:37:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 16438 states and 22888 transitions. [2022-12-14 12:37:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2022-12-14 12:37:54,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:54,557 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 16, 15, 15, 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] [2022-12-14 12:37:54,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 12:37:54,558 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)] === [2022-12-14 12:37:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:54,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1378526904, now seen corresponding path program 1 times [2022-12-14 12:37:54,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:54,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099706303] [2022-12-14 12:37:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:54,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:37:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:37:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 5173 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-12-14 12:37:54,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:37:54,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099706303] [2022-12-14 12:37:54,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099706303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:37:54,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:37:54,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:37:54,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239845612] [2022-12-14 12:37:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:37:54,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:37:54,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:37:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:37:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:37:54,880 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) [2022-12-14 12:37:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:37:58,599 INFO L93 Difference]: Finished difference Result 16444 states and 22893 transitions. [2022-12-14 12:37:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:37:58,600 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 497 [2022-12-14 12:37:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:37:58,648 INFO L225 Difference]: With dead ends: 16444 [2022-12-14 12:37:58,648 INFO L226 Difference]: Without dead ends: 16442 [2022-12-14 12:37:58,656 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 [2022-12-14 12:37:58,657 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, 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, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:37:58,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 12:37:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16442 states. [2022-12-14 12:37:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16442 to 16442. [2022-12-14 12:37:59,927 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) [2022-12-14 12:37:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16442 states to 16442 states and 22891 transitions. [2022-12-14 12:37:59,971 INFO L78 Accepts]: Start accepts. Automaton has 16442 states and 22891 transitions. Word has length 497 [2022-12-14 12:37:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:37:59,971 INFO L495 AbstractCegarLoop]: Abstraction has 16442 states and 22891 transitions. [2022-12-14 12:37:59,971 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) [2022-12-14 12:37:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16442 states and 22891 transitions. [2022-12-14 12:37:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-12-14 12:37:59,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:37:59,981 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] [2022-12-14 12:37:59,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 12:37:59,982 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)] === [2022-12-14 12:37:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:37:59,982 INFO L85 PathProgramCache]: Analyzing trace with hash 212123391, now seen corresponding path program 1 times [2022-12-14 12:37:59,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:37:59,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531929792] [2022-12-14 12:37:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:37:59,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4979 trivial. 0 not checked. [2022-12-14 12:38:00,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531929792] [2022-12-14 12:38:00,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531929792] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:38:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067158910] [2022-12-14 12:38:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:00,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:38:00,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:38:00,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:38:00,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:38:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:00,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:38:00,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:38:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 4875 trivial. 0 not checked. [2022-12-14 12:38:01,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:38:01,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067158910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:01,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:38:01,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 12:38:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658695645] [2022-12-14 12:38:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:01,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:38:01,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:38:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:38:01,022 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) [2022-12-14 12:38:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:06,482 INFO L93 Difference]: Finished difference Result 36296 states and 50501 transitions. [2022-12-14 12:38:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:38:06,482 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 [2022-12-14 12:38:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:06,532 INFO L225 Difference]: With dead ends: 36296 [2022-12-14 12:38:06,532 INFO L226 Difference]: Without dead ends: 20225 [2022-12-14 12:38:06,566 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 [2022-12-14 12:38:06,566 INFO L413 NwaCegarLoop]: 5728 mSDtfsCounter, 3246 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 3278 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3246 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 3290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:06,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3246 Valid, 9884 Invalid, 3290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3278 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 12:38:06,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20225 states. [2022-12-14 12:38:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20225 to 20128. [2022-12-14 12:38:08,172 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) [2022-12-14 12:38:08,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 28005 transitions. [2022-12-14 12:38:08,307 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 28005 transitions. Word has length 480 [2022-12-14 12:38:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:08,308 INFO L495 AbstractCegarLoop]: Abstraction has 20128 states and 28005 transitions. [2022-12-14 12:38:08,308 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) [2022-12-14 12:38:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 28005 transitions. [2022-12-14 12:38:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-12-14 12:38:08,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:08,321 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] [2022-12-14 12:38:08,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:38:08,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 12:38:08,522 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)] === [2022-12-14 12:38:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:08,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1963475026, now seen corresponding path program 1 times [2022-12-14 12:38:08,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:08,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137421104] [2022-12-14 12:38:08,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:08,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4981 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4980 trivial. 0 not checked. [2022-12-14 12:38:08,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:08,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137421104] [2022-12-14 12:38:08,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137421104] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:38:08,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580972241] [2022-12-14 12:38:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:08,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:38:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:38:08,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:38:08,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:38:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:09,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:38:09,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:38:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4981 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 4875 trivial. 0 not checked. [2022-12-14 12:38:09,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:38:09,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580972241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:09,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:38:09,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 12:38:09,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786029765] [2022-12-14 12:38:09,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:09,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:38:09,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:09,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:38:09,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:38:09,541 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) [2022-12-14 12:38:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:15,463 INFO L93 Difference]: Finished difference Result 44035 states and 61215 transitions. [2022-12-14 12:38:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:38:15,463 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 [2022-12-14 12:38:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:15,522 INFO L225 Difference]: With dead ends: 44035 [2022-12-14 12:38:15,523 INFO L226 Difference]: Without dead ends: 24278 [2022-12-14 12:38:15,562 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 [2022-12-14 12:38:15,562 INFO L413 NwaCegarLoop]: 5728 mSDtfsCounter, 3197 mSDsluCounter, 7077 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 12805 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:15,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3197 Valid, 12805 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 12:38:15,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24278 states. [2022-12-14 12:38:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24278 to 24181. [2022-12-14 12:38:17,480 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) [2022-12-14 12:38:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24181 states to 24181 states and 33600 transitions. [2022-12-14 12:38:17,554 INFO L78 Accepts]: Start accepts. Automaton has 24181 states and 33600 transitions. Word has length 482 [2022-12-14 12:38:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:17,555 INFO L495 AbstractCegarLoop]: Abstraction has 24181 states and 33600 transitions. [2022-12-14 12:38:17,555 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) [2022-12-14 12:38:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 24181 states and 33600 transitions. [2022-12-14 12:38:17,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-12-14 12:38:17,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:17,564 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] [2022-12-14 12:38:17,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:38:17,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 12:38:17,766 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)] === [2022-12-14 12:38:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1455614094, now seen corresponding path program 1 times [2022-12-14 12:38:17,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:17,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956202691] [2022-12-14 12:38:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5234 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2022-12-14 12:38:18,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:18,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956202691] [2022-12-14 12:38:18,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956202691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:18,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:18,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:38:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37271856] [2022-12-14 12:38:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:18,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:38:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:38:18,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:38:18,137 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) [2022-12-14 12:38:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:22,088 INFO L93 Difference]: Finished difference Result 24187 states and 33605 transitions. [2022-12-14 12:38:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:38:22,088 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 [2022-12-14 12:38:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:22,147 INFO L225 Difference]: With dead ends: 24187 [2022-12-14 12:38:22,147 INFO L226 Difference]: Without dead ends: 24183 [2022-12-14 12:38:22,156 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 [2022-12-14 12:38:22,157 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3289 mSDsluCounter, 5901 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 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, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:22,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3290 Valid, 8864 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 12:38:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-12-14 12:38:24,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2022-12-14 12:38:24,785 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) [2022-12-14 12:38:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 33601 transitions. [2022-12-14 12:38:24,851 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 33601 transitions. Word has length 501 [2022-12-14 12:38:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:24,851 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 33601 transitions. [2022-12-14 12:38:24,851 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) [2022-12-14 12:38:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 33601 transitions. [2022-12-14 12:38:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-12-14 12:38:24,861 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:24,861 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 18, 17, 17, 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, 1, 1] [2022-12-14 12:38:24,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 12:38:24,861 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)] === [2022-12-14 12:38:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash 543232581, now seen corresponding path program 1 times [2022-12-14 12:38:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:24,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539310936] [2022-12-14 12:38:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:24,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5300 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 5266 trivial. 0 not checked. [2022-12-14 12:38:25,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:25,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539310936] [2022-12-14 12:38:25,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539310936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:25,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:25,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:38:25,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276876675] [2022-12-14 12:38:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:25,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:38:25,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:25,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:38:25,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:38:25,190 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) [2022-12-14 12:38:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:29,495 INFO L93 Difference]: Finished difference Result 24183 states and 33601 transitions. [2022-12-14 12:38:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:38:29,495 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 506 [2022-12-14 12:38:29,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:29,552 INFO L225 Difference]: With dead ends: 24183 [2022-12-14 12:38:29,552 INFO L226 Difference]: Without dead ends: 23738 [2022-12-14 12:38:29,561 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 [2022-12-14 12:38:29,562 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 3285 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:29,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 8861 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 12:38:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23738 states. [2022-12-14 12:38:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23738 to 23738. [2022-12-14 12:38:31,720 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) [2022-12-14 12:38:31,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23738 states to 23738 states and 33013 transitions. [2022-12-14 12:38:31,789 INFO L78 Accepts]: Start accepts. Automaton has 23738 states and 33013 transitions. Word has length 506 [2022-12-14 12:38:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:31,789 INFO L495 AbstractCegarLoop]: Abstraction has 23738 states and 33013 transitions. [2022-12-14 12:38:31,789 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) [2022-12-14 12:38:31,789 INFO L276 IsEmpty]: Start isEmpty. Operand 23738 states and 33013 transitions. [2022-12-14 12:38:31,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-12-14 12:38:31,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:31,801 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] [2022-12-14 12:38:31,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 12:38:31,802 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)] === [2022-12-14 12:38:31,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -951652361, now seen corresponding path program 1 times [2022-12-14 12:38:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:31,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352859520] [2022-12-14 12:38:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-12-14 12:38:32,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:32,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352859520] [2022-12-14 12:38:32,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352859520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:32,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:32,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:38:32,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512763414] [2022-12-14 12:38:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:32,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:38:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:32,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:38:32,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:38:32,044 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) [2022-12-14 12:38:38,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:38,280 INFO L93 Difference]: Finished difference Result 51172 states and 71110 transitions. [2022-12-14 12:38:38,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:38:38,280 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 505 [2022-12-14 12:38:38,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:38,361 INFO L225 Difference]: With dead ends: 51172 [2022-12-14 12:38:38,361 INFO L226 Difference]: Without dead ends: 27805 [2022-12-14 12:38:38,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:38:38,413 INFO L413 NwaCegarLoop]: 5580 mSDtfsCounter, 3120 mSDsluCounter, 14023 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 19603 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:38,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 19603 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 12:38:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27805 states. [2022-12-14 12:38:40,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27805 to 27789. [2022-12-14 12:38:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27789 states, 16119 states have (on average 1.2705502822755754) internal successors, (20480), 16807 states have internal predecessors, (20480), 8930 states have call successors, (8930), 2774 states have call predecessors, (8930), 2738 states have return successors, (9166), 8604 states have call predecessors, (9166), 8930 states have call successors, (9166) [2022-12-14 12:38:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27789 states to 27789 states and 38576 transitions. [2022-12-14 12:38:40,910 INFO L78 Accepts]: Start accepts. Automaton has 27789 states and 38576 transitions. Word has length 505 [2022-12-14 12:38:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:40,911 INFO L495 AbstractCegarLoop]: Abstraction has 27789 states and 38576 transitions. [2022-12-14 12:38:40,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-12-14 12:38:40,911 INFO L276 IsEmpty]: Start isEmpty. Operand 27789 states and 38576 transitions. [2022-12-14 12:38:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-12-14 12:38:40,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:40,925 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, 1] [2022-12-14 12:38:40,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 12:38:40,925 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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)] === [2022-12-14 12:38:40,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:40,925 INFO L85 PathProgramCache]: Analyzing trace with hash 406219945, now seen corresponding path program 1 times [2022-12-14 12:38:40,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:40,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654364372] [2022-12-14 12:38:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:40,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-12-14 12:38:41,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:41,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654364372] [2022-12-14 12:38:41,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654364372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:41,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:41,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:38:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414234491] [2022-12-14 12:38:41,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:41,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:38:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:38:41,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:38:41,161 INFO L87 Difference]: Start difference. First operand 27789 states and 38576 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) [2022-12-14 12:38:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:48,035 INFO L93 Difference]: Finished difference Result 62967 states and 87163 transitions. [2022-12-14 12:38:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:38:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) Word has length 506 [2022-12-14 12:38:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:48,136 INFO L225 Difference]: With dead ends: 62967 [2022-12-14 12:38:48,136 INFO L226 Difference]: Without dead ends: 35549 [2022-12-14 12:38:48,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:38:48,195 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 3119 mSDsluCounter, 13756 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 19203 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:48,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 19203 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 12:38:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35549 states. [2022-12-14 12:38:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35549 to 35531. [2022-12-14 12:38:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35531 states, 20514 states have (on average 1.2677683533196842) internal successors, (26007), 21431 states have internal predecessors, (26007), 11350 states have call successors, (11350), 3717 states have call predecessors, (11350), 3665 states have return successors, (11691), 10903 states have call predecessors, (11691), 11350 states have call successors, (11691) [2022-12-14 12:38:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35531 states to 35531 states and 49048 transitions. [2022-12-14 12:38:51,602 INFO L78 Accepts]: Start accepts. Automaton has 35531 states and 49048 transitions. Word has length 506 [2022-12-14 12:38:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:51,602 INFO L495 AbstractCegarLoop]: Abstraction has 35531 states and 49048 transitions. [2022-12-14 12:38:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) [2022-12-14 12:38:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 35531 states and 49048 transitions. [2022-12-14 12:38:51,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-12-14 12:38:51,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:51,619 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, 1, 1] [2022-12-14 12:38:51,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 12:38:51,619 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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)] === [2022-12-14 12:38:51,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:51,619 INFO L85 PathProgramCache]: Analyzing trace with hash -648023173, now seen corresponding path program 1 times [2022-12-14 12:38:51,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:51,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241185523] [2022-12-14 12:38:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:51,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-12-14 12:38:51,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241185523] [2022-12-14 12:38:51,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241185523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:51,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:51,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:38:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071894337] [2022-12-14 12:38:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:51,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:38:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:38:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:38:51,852 INFO L87 Difference]: Start difference. First operand 35531 states and 49048 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2022-12-14 12:39:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:39:00,214 INFO L93 Difference]: Finished difference Result 78301 states and 107952 transitions. [2022-12-14 12:39:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:39:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) Word has length 507 [2022-12-14 12:39:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:39:00,412 INFO L225 Difference]: With dead ends: 78301 [2022-12-14 12:39:00,412 INFO L226 Difference]: Without dead ends: 43141 [2022-12-14 12:39:00,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:39:00,479 INFO L413 NwaCegarLoop]: 5453 mSDtfsCounter, 3119 mSDsluCounter, 13768 mSDsCounter, 0 mSdLazyCounter, 2931 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 19221 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:39:00,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 19221 Invalid, 2939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2931 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 12:39:00,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43141 states. [2022-12-14 12:39:04,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43141 to 43121. [2022-12-14 12:39:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43121 states, 24832 states have (on average 1.2665512242268042) internal successors, (31451), 25978 states have internal predecessors, (31451), 13731 states have call successors, (13731), 4624 states have call predecessors, (13731), 4556 states have return successors, (14177), 13163 states have call predecessors, (14177), 13731 states have call successors, (14177) [2022-12-14 12:39:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43121 states to 43121 states and 59359 transitions. [2022-12-14 12:39:04,250 INFO L78 Accepts]: Start accepts. Automaton has 43121 states and 59359 transitions. Word has length 507 [2022-12-14 12:39:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:39:04,250 INFO L495 AbstractCegarLoop]: Abstraction has 43121 states and 59359 transitions. [2022-12-14 12:39:04,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2022-12-14 12:39:04,250 INFO L276 IsEmpty]: Start isEmpty. Operand 43121 states and 59359 transitions. [2022-12-14 12:39:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-12-14 12:39:04,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:39:04,267 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 4, 4, 3, 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] [2022-12-14 12:39:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 12:39:04,267 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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)] === [2022-12-14 12:39:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:39:04,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2120868821, now seen corresponding path program 1 times [2022-12-14 12:39:04,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:39:04,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428920964] [2022-12-14 12:39:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:04,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:39:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5174 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-12-14 12:39:04,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:39:04,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428920964] [2022-12-14 12:39:04,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428920964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:39:04,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:39:04,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:39:04,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141029516] [2022-12-14 12:39:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:39:04,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:39:04,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:39:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:39:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:39:04,504 INFO L87 Difference]: Start difference. First operand 43121 states and 59359 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2022-12-14 12:39:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:39:12,280 INFO L93 Difference]: Finished difference Result 93548 states and 128592 transitions. [2022-12-14 12:39:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:39:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) Word has length 508 [2022-12-14 12:39:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:39:12,423 INFO L225 Difference]: With dead ends: 93548 [2022-12-14 12:39:12,423 INFO L226 Difference]: Without dead ends: 50798 [2022-12-14 12:39:12,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:39:12,512 INFO L413 NwaCegarLoop]: 5598 mSDtfsCounter, 3100 mSDsluCounter, 14059 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 19657 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:39:12,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 19657 Invalid, 2996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 12:39:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50798 states. [2022-12-14 12:39:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50798 to 50792. [2022-12-14 12:39:16,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50792 states, 29262 states have (on average 1.265737133483699) internal successors, (37038), 30611 states have internal predecessors, (37038), 16071 states have call successors, (16071), 5530 states have call predecessors, (16071), 5457 states have return successors, (16604), 15408 states have call predecessors, (16604), 16071 states have call successors, (16604) [2022-12-14 12:39:17,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50792 states to 50792 states and 69713 transitions. [2022-12-14 12:39:17,158 INFO L78 Accepts]: Start accepts. Automaton has 50792 states and 69713 transitions. Word has length 508 [2022-12-14 12:39:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:39:17,158 INFO L495 AbstractCegarLoop]: Abstraction has 50792 states and 69713 transitions. [2022-12-14 12:39:17,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2022-12-14 12:39:17,159 INFO L276 IsEmpty]: Start isEmpty. Operand 50792 states and 69713 transitions. [2022-12-14 12:39:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-12-14 12:39:17,176 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:39:17,176 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, 1, 1, 1] [2022-12-14 12:39:17,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 12:39:17,177 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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)] === [2022-12-14 12:39:17,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:39:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1305322843, now seen corresponding path program 1 times [2022-12-14 12:39:17,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:39:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796279122] [2022-12-14 12:39:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:39:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-12-14 12:39:17,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:39:17,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796279122] [2022-12-14 12:39:17,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796279122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:39:17,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:39:17,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:39:17,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790136750] [2022-12-14 12:39:17,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:39:17,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:39:17,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:39:17,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:39:17,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:39:17,408 INFO L87 Difference]: Start difference. First operand 50792 states and 69713 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-12-14 12:39:26,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:39:26,399 INFO L93 Difference]: Finished difference Result 106115 states and 145673 transitions. [2022-12-14 12:39:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:39:26,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) Word has length 508 [2022-12-14 12:39:26,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:39:26,566 INFO L225 Difference]: With dead ends: 106115 [2022-12-14 12:39:26,567 INFO L226 Difference]: Without dead ends: 55694 [2022-12-14 12:39:26,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:39:26,675 INFO L413 NwaCegarLoop]: 5530 mSDtfsCounter, 3119 mSDsluCounter, 13922 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 19452 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:39:26,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 19452 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 12:39:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55694 states. [2022-12-14 12:39:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55694 to 55672. [2022-12-14 12:39:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55672 states, 32135 states have (on average 1.2655982573517972) internal successors, (40670), 33612 states have internal predecessors, (40670), 17581 states have call successors, (17581), 6026 states have call predecessors, (17581), 5954 states have return successors, (18149), 16874 states have call predecessors, (18149), 17581 states have call successors, (18149) [2022-12-14 12:39:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55672 states to 55672 states and 76400 transitions. [2022-12-14 12:39:31,518 INFO L78 Accepts]: Start accepts. Automaton has 55672 states and 76400 transitions. Word has length 508 [2022-12-14 12:39:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:39:31,518 INFO L495 AbstractCegarLoop]: Abstraction has 55672 states and 76400 transitions. [2022-12-14 12:39:31,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-12-14 12:39:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 55672 states and 76400 transitions. [2022-12-14 12:39:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-12-14 12:39:31,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:39:31,541 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 4, 4, 3, 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, 1] [2022-12-14 12:39:31,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 12:39:31,541 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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)] === [2022-12-14 12:39:31,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:39:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2085829599, now seen corresponding path program 1 times [2022-12-14 12:39:31,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:39:31,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190700744] [2022-12-14 12:39:31,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:39:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5174 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-12-14 12:39:31,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:39:31,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190700744] [2022-12-14 12:39:31,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190700744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:39:31,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:39:31,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:39:31,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557964991] [2022-12-14 12:39:31,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:39:31,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:39:31,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:39:31,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:39:31,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:39:31,776 INFO L87 Difference]: Start difference. First operand 55672 states and 76400 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-12-14 12:39:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:39:42,517 INFO L93 Difference]: Finished difference Result 125337 states and 171592 transitions. [2022-12-14 12:39:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:39:42,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) Word has length 509 [2022-12-14 12:39:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:39:42,719 INFO L225 Difference]: With dead ends: 125337 [2022-12-14 12:39:42,720 INFO L226 Difference]: Without dead ends: 70036 [2022-12-14 12:39:42,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:39:42,842 INFO L413 NwaCegarLoop]: 5552 mSDtfsCounter, 3099 mSDsluCounter, 13966 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 19518 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:39:42,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 19518 Invalid, 2995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 12:39:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70036 states. [2022-12-14 12:39:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70036 to 70030. [2022-12-14 12:39:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70030 states, 40273 states have (on average 1.2632284657214512) internal successors, (50874), 42191 states have internal predecessors, (50874), 21993 states have call successors, (21993), 7862 states have call predecessors, (21993), 7762 states have return successors, (22770), 21055 states have call predecessors, (22770), 21993 states have call successors, (22770) [2022-12-14 12:39:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70030 states to 70030 states and 95637 transitions. [2022-12-14 12:39:49,027 INFO L78 Accepts]: Start accepts. Automaton has 70030 states and 95637 transitions. Word has length 509 [2022-12-14 12:39:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:39:49,027 INFO L495 AbstractCegarLoop]: Abstraction has 70030 states and 95637 transitions. [2022-12-14 12:39:49,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-12-14 12:39:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 70030 states and 95637 transitions. [2022-12-14 12:39:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-12-14 12:39:49,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:39:49,049 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, 1, 1, 1, 1] [2022-12-14 12:39:49,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 12:39:49,050 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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)] === [2022-12-14 12:39:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:39:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 357644250, now seen corresponding path program 1 times [2022-12-14 12:39:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:39:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448885169] [2022-12-14 12:39:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:39:49,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:39:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:39:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5142 trivial. 0 not checked. [2022-12-14 12:39:49,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:39:49,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448885169] [2022-12-14 12:39:49,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448885169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:39:49,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:39:49,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:39:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444936233] [2022-12-14 12:39:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:39:49,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:39:49,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:39:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:39:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:39:49,285 INFO L87 Difference]: Start difference. First operand 70030 states and 95637 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-12-14 12:40:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:40:00,032 INFO L93 Difference]: Finished difference Result 145960 states and 199262 transitions. [2022-12-14 12:40:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:40:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) Word has length 509 [2022-12-14 12:40:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:40:00,249 INFO L225 Difference]: With dead ends: 145960 [2022-12-14 12:40:00,249 INFO L226 Difference]: Without dead ends: 76301 [2022-12-14 12:40:00,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:40:00,389 INFO L413 NwaCegarLoop]: 5583 mSDtfsCounter, 3119 mSDsluCounter, 14028 mSDsCounter, 0 mSdLazyCounter, 3000 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 19611 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:40:00,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 19611 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3000 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 12:40:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76301 states. [2022-12-14 12:40:06,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76301 to 76277. [2022-12-14 12:40:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76277 states, 43916 states have (on average 1.2626833044903907) internal successors, (55452), 45985 states have internal predecessors, (55452), 23879 states have call successors, (23879), 8582 states have call predecessors, (23879), 8480 states have return successors, (24717), 22874 states have call predecessors, (24717), 23879 states have call successors, (24717) [2022-12-14 12:40:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76277 states to 76277 states and 104048 transitions. [2022-12-14 12:40:07,093 INFO L78 Accepts]: Start accepts. Automaton has 76277 states and 104048 transitions. Word has length 509 [2022-12-14 12:40:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:40:07,093 INFO L495 AbstractCegarLoop]: Abstraction has 76277 states and 104048 transitions. [2022-12-14 12:40:07,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-12-14 12:40:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 76277 states and 104048 transitions. [2022-12-14 12:40:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-12-14 12:40:07,116 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:40:07,116 INFO L195 NwaCegarLoop]: trace histogram [42, 34, 34, 34, 34, 34, 34, 5, 5, 5, 4, 4, 3, 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, 1, 1] [2022-12-14 12:40:07,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 12:40:07,117 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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)] === [2022-12-14 12:40:07,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:40:07,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1211488111, now seen corresponding path program 1 times [2022-12-14 12:40:07,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:40:07,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662180623] [2022-12-14 12:40:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:40:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5174 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-12-14 12:40:07,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:40:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662180623] [2022-12-14 12:40:07,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662180623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:40:07,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:40:07,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:40:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616487053] [2022-12-14 12:40:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:40:07,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:40:07,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:40:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:40:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:40:07,356 INFO L87 Difference]: Start difference. First operand 76277 states and 104048 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-12-14 12:40:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:40:18,464 INFO L93 Difference]: Finished difference Result 167867 states and 228739 transitions. [2022-12-14 12:40:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:40:18,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) Word has length 510 [2022-12-14 12:40:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:40:18,734 INFO L225 Difference]: With dead ends: 167867 [2022-12-14 12:40:18,734 INFO L226 Difference]: Without dead ends: 91961 [2022-12-14 12:40:18,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:40:18,895 INFO L413 NwaCegarLoop]: 5561 mSDtfsCounter, 3099 mSDsluCounter, 13984 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 19545 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:40:18,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 19545 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2991 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 12:40:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91961 states. [2022-12-14 12:40:26,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91961 to 91955. [2022-12-14 12:40:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91955 states, 52822 states have (on average 1.261652341827269) internal successors, (66643), 55383 states have internal predecessors, (66643), 28702 states have call successors, (28702), 10562 states have call predecessors, (28702), 10429 states have return successors, (29775), 27439 states have call predecessors, (29775), 28702 states have call successors, (29775) [2022-12-14 12:40:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91955 states to 91955 states and 125120 transitions. [2022-12-14 12:40:27,093 INFO L78 Accepts]: Start accepts. Automaton has 91955 states and 125120 transitions. Word has length 510 [2022-12-14 12:40:27,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:40:27,094 INFO L495 AbstractCegarLoop]: Abstraction has 91955 states and 125120 transitions. [2022-12-14 12:40:27,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-12-14 12:40:27,094 INFO L276 IsEmpty]: Start isEmpty. Operand 91955 states and 125120 transitions. [2022-12-14 12:40:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-12-14 12:40:27,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:40:27,120 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, 1, 1, 1, 1, 1] [2022-12-14 12:40:27,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 12:40:27,120 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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)] === [2022-12-14 12:40:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:40:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1356616323, now seen corresponding path program 1 times [2022-12-14 12:40:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:40:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99041633] [2022-12-14 12:40:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:40:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5170 trivial. 0 not checked. [2022-12-14 12:40:27,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:40:27,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99041633] [2022-12-14 12:40:27,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99041633] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:40:27,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757316504] [2022-12-14 12:40:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:27,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:40:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:40:27,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:40:27,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49eb4a0-fa8f-4490-a616-a22a72307557/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:40:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:28,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:40:28,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:40:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5170 trivial. 0 not checked. [2022-12-14 12:40:28,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:40:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5171 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5170 trivial. 0 not checked. [2022-12-14 12:40:28,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757316504] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:40:28,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259627223] [2022-12-14 12:40:28,325 INFO L159 IcfgInterpreter]: Started Sifa with 182 locations of interest [2022-12-14 12:40:28,325 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:40:28,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:40:28,334 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:40:28,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:46:44,888 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 491 for LOIs [2022-12-14 12:46:50,185 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 489 for LOIs [2022-12-14 12:46:50,504 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_filter_positive_int with input of size 803 for LOIs [2022-12-14 12:46:55,358 INFO L197 IcfgInterpreter]: Interpreting procedure ldv__builtin_expect with input of size 793 for LOIs [2022-12-14 12:46:55,885 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 1050 for LOIs [2022-12-14 12:47:02,261 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:47:16,769 WARN L233 SmtUtils]: Spent 14.41s on a formula simplification that was a NOOP. DAG size: 1904 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)