./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.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_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/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_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/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_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- 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 07:41:07,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:41:07,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:41:07,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:41:07,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:41:07,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:41:07,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:41:07,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:41:07,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:41:07,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:41:07,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:41:07,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:41:07,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:41:07,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:41:07,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:41:07,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:41:07,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:41:07,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:41:07,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:41:07,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:41:07,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:41:07,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:41:07,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:41:07,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:41:07,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:41:07,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:41:07,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:41:07,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:41:07,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:41:07,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:41:07,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:41:07,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:41:07,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:41:07,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:41:07,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:41:07,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:41:07,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:41:07,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:41:07,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:41:07,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:41:07,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:41:07,767 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:41:07,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:41:07,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:41:07,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:41:07,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:41:07,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:41:07,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:41:07,790 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:41:07,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:41:07,790 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:41:07,790 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:41:07,790 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:41:07,790 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:41:07,791 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:41:07,791 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:41:07,791 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:41:07,791 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:41:07,791 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:41:07,791 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:41:07,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:41:07,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:41:07,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:41:07,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:41:07,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:41:07,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:41:07,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:41:07,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:41:07,794 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:41:07,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:41:07,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:41:07,795 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:41:07,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:41:07,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:41:07,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:41:07,795 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_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-12-14 07:41:07,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:41:08,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:41:08,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:41:08,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:41:08,011 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:41:08,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-12-14 07:41:10,606 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:41:11,012 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:41:11,012 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-12-14 07:41:11,045 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/data/567fa1a6c/0e4abe21d62d44a08261b657e9563dea/FLAG2043e3aac [2022-12-14 07:41:11,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/data/567fa1a6c/0e4abe21d62d44a08261b657e9563dea [2022-12-14 07:41:11,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:41:11,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:41:11,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:41:11,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:41:11,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:41:11,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6963b131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11, skipping insertion in model container [2022-12-14 07:41:11,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:41:11,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:41:11,945 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:41:11,950 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:41:11,963 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:41:12,136 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:41:12,143 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:41:12,179 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:41:12,188 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:41:12,196 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:41:12,205 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:41:12,214 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:41:12,233 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:41:12,363 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:12,393 WARN L623 FunctionHandler]: Unknown extern function bio_clone_bioset [2022-12-14 07:41:12,413 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 07:41:12,413 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:41:12,630 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-12-14 07:41:12,630 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-12-14 07:41:12,666 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,667 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,667 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,668 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,674 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,674 WARN L623 FunctionHandler]: Unknown extern function gnttab_claim_grant_reference [2022-12-14 07:41:12,676 WARN L623 FunctionHandler]: Unknown extern function gnttab_grant_foreign_access_ref [2022-12-14 07:41:12,690 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,690 WARN L623 FunctionHandler]: Unknown extern function bitmap_set [2022-12-14 07:41:12,695 WARN L623 FunctionHandler]: Unknown extern function bitmap_clear [2022-12-14 07:41:12,709 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,711 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,711 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:41:12,730 WARN L623 FunctionHandler]: Unknown extern function gnttab_alloc_grant_references [2022-12-14 07:41:12,730 WARN L623 FunctionHandler]: Unknown extern function gnttab_request_free_callback [2022-12-14 07:41:12,734 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-12-14 07:41:12,737 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_506 [2022-12-14 07:41:12,739 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,742 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_552 [2022-12-14 07:41:12,742 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_553 [2022-12-14 07:41:12,743 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 07:41:12,744 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_571 [2022-12-14 07:41:12,747 WARN L623 FunctionHandler]: Unknown extern function gnttab_free_grant_references [2022-12-14 07:41:12,753 WARN L623 FunctionHandler]: Unknown extern function notify_remote_via_irq [2022-12-14 07:41:12,762 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:41:12,763 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-12-14 07:41:12,763 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:12,764 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:41:12,765 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-12-14 07:41:12,765 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:12,765 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-12-14 07:41:12,770 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_discard_sectors [2022-12-14 07:41:12,771 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 07:41:12,771 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-12-14 07:41:12,771 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-12-14 07:41:12,771 WARN L623 FunctionHandler]: Unknown extern function blk_queue_segment_boundary [2022-12-14 07:41:12,771 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-12-14 07:41:12,772 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 07:41:12,772 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-12-14 07:41:12,772 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-12-14 07:41:12,780 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-12-14 07:41:12,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,787 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,801 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-12-14 07:41:12,806 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:12,807 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-12-14 07:41:12,807 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 07:41:12,811 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-12-14 07:41:12,820 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:12,821 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,821 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,822 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,822 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,823 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,824 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,825 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,825 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,826 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,826 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,826 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,828 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-12-14 07:41:12,828 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 07:41:12,828 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,829 WARN L623 FunctionHandler]: Unknown extern function unbind_from_irqhandler [2022-12-14 07:41:12,842 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1075 [2022-12-14 07:41:12,842 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1076 [2022-12-14 07:41:12,843 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 07:41:12,843 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-12-14 07:41:12,844 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 07:41:12,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,845 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,846 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-12-14 07:41:12,847 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 07:41:12,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,848 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:12,855 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:12,856 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:12,857 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,857 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:12,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,860 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,860 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:12,866 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,866 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:41:12,867 WARN L623 FunctionHandler]: Unknown extern function xenbus_grant_ring [2022-12-14 07:41:12,867 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-12-14 07:41:12,867 WARN L623 FunctionHandler]: Unknown extern function xenbus_alloc_evtchn [2022-12-14 07:41:12,867 WARN L623 FunctionHandler]: Unknown extern function bind_evtchn_to_irqhandler [2022-12-14 07:41:12,868 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,873 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_start [2022-12-14 07:41:12,873 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,873 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:12,874 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:12,875 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:12,875 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:12,876 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:41:12,876 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-12-14 07:41:12,876 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,876 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:12,877 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-12-14 07:41:12,885 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,890 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:12,890 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:12,891 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,891 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_and_legacy_disk_devices [2022-12-14 07:41:12,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,892 WARN L623 FunctionHandler]: Unknown extern function xenbus_read [2022-12-14 07:41:12,892 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 07:41:12,893 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,893 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,893 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,894 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 07:41:12,894 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:41:12,894 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 07:41:12,894 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 07:41:12,895 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 07:41:12,895 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 07:41:12,896 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,900 WARN L623 FunctionHandler]: Unknown extern function bio_endio [2022-12-14 07:41:12,900 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,901 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 07:41:12,904 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-14 07:41:12,906 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,906 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 07:41:12,907 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-12-14 07:41:12,908 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,908 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,908 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:12,909 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-12-14 07:41:12,909 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:12,910 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-12-14 07:41:12,911 WARN L623 FunctionHandler]: Unknown extern function bio_trim [2022-12-14 07:41:12,911 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 07:41:12,912 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 07:41:12,917 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,921 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:12,922 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:12,922 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_error [2022-12-14 07:41:12,922 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:12,922 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:12,923 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:12,926 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,927 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,929 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,932 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-12-14 07:41:12,932 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,932 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,933 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,933 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:12,934 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:12,938 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:12,939 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,939 WARN L623 FunctionHandler]: Unknown extern function revalidate_disk [2022-12-14 07:41:12,940 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,941 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,942 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,942 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:12,943 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,943 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,944 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,944 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:12,945 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,945 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:12,945 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:12,950 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,956 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:12,956 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:12,957 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,957 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:41:12,957 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,957 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:12,970 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:12,970 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:12,971 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:41:12,971 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:12,972 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:41:12,972 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:12,972 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:12,977 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_disk_devices [2022-12-14 07:41:12,978 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-12-14 07:41:12,978 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:12,979 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 07:41:12,983 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 07:41:12,983 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:13,089 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:41:13,093 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-12-14 07:41:13,094 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 07:41:13,094 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 07:41:13,094 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:13,095 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 07:41:13,095 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-12-14 07:41:13,095 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 07:41:13,095 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:13,097 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 07:41:13,098 WARN L623 FunctionHandler]: Unknown extern function __xenbus_register_frontend [2022-12-14 07:41:13,098 WARN L623 FunctionHandler]: Unknown extern function xenbus_unregister_driver [2022-12-14 07:41:13,488 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:41:13,680 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:41:14,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-12-14 07:41:14,135 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-12-14 07:41:14,135 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-12-14 07:41:14,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-12-14 07:41:14,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-12-14 07:41:14,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-12-14 07:41:14,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-12-14 07:41:14,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-12-14 07:41:14,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-12-14 07:41:14,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-12-14 07:41:14,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-12-14 07:41:14,138 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-12-14 07:41:14,138 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-12-14 07:41:14,138 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-12-14 07:41:14,138 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-12-14 07:41:14,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-12-14 07:41:14,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-12-14 07:41:14,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-12-14 07:41:14,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-12-14 07:41:14,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-12-14 07:41:14,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-12-14 07:41:14,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-12-14 07:41:14,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-12-14 07:41:14,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-12-14 07:41:14,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-12-14 07:41:14,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-12-14 07:41:14,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-12-14 07:41:14,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-12-14 07:41:14,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-12-14 07:41:14,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-12-14 07:41:14,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-12-14 07:41:14,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-12-14 07:41:14,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-12-14 07:41:14,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-12-14 07:41:14,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-12-14 07:41:14,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-12-14 07:41:14,144 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-12-14 07:41:14,144 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-12-14 07:41:14,144 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-12-14 07:41:14,144 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-12-14 07:41:14,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-12-14 07:41:14,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-12-14 07:41:14,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-12-14 07:41:14,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-12-14 07:41:14,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-12-14 07:41:14,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-12-14 07:41:14,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-12-14 07:41:14,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-12-14 07:41:14,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-12-14 07:41:14,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-12-14 07:41:14,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-12-14 07:41:14,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-12-14 07:41:14,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-12-14 07:41:14,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-12-14 07:41:14,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-12-14 07:41:14,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-12-14 07:41:14,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-12-14 07:41:14,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-12-14 07:41:14,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-12-14 07:41:14,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-12-14 07:41:14,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-12-14 07:41:14,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-12-14 07:41:14,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-12-14 07:41:14,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-12-14 07:41:14,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-12-14 07:41:14,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-12-14 07:41:14,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-12-14 07:41:14,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-12-14 07:41:14,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-12-14 07:41:14,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-12-14 07:41:14,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-12-14 07:41:14,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-12-14 07:41:14,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-12-14 07:41:14,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-12-14 07:41:14,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-12-14 07:41:14,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-12-14 07:41:14,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-12-14 07:41:14,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-12-14 07:41:14,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-12-14 07:41:14,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-12-14 07:41:14,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-12-14 07:41:14,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-12-14 07:41:14,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-12-14 07:41:14,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-12-14 07:41:14,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-12-14 07:41:14,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-12-14 07:41:14,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-12-14 07:41:14,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-12-14 07:41:14,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:41:14,178 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:41:14,250 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:41:14,250 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:41:14,250 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:41:14,252 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:41:14,252 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:41:14,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:41:14,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:41:14,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:41:14,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:41:14,254 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:41:14,254 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:41:14,258 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:14,261 WARN L623 FunctionHandler]: Unknown extern function bio_clone_bioset [2022-12-14 07:41:14,263 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 07:41:14,263 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:41:14,266 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-12-14 07:41:14,266 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-12-14 07:41:14,269 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,270 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,270 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,271 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,272 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,272 WARN L623 FunctionHandler]: Unknown extern function gnttab_claim_grant_reference [2022-12-14 07:41:14,273 WARN L623 FunctionHandler]: Unknown extern function gnttab_grant_foreign_access_ref [2022-12-14 07:41:14,276 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,276 WARN L623 FunctionHandler]: Unknown extern function bitmap_set [2022-12-14 07:41:14,277 WARN L623 FunctionHandler]: Unknown extern function bitmap_clear [2022-12-14 07:41:14,280 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,281 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,281 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 07:41:14,283 WARN L623 FunctionHandler]: Unknown extern function gnttab_alloc_grant_references [2022-12-14 07:41:14,283 WARN L623 FunctionHandler]: Unknown extern function gnttab_request_free_callback [2022-12-14 07:41:14,285 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-12-14 07:41:14,288 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_506 [2022-12-14 07:41:14,289 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,291 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_552 [2022-12-14 07:41:14,291 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_553 [2022-12-14 07:41:14,292 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 07:41:14,292 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_571 [2022-12-14 07:41:14,294 WARN L623 FunctionHandler]: Unknown extern function gnttab_free_grant_references [2022-12-14 07:41:14,296 WARN L623 FunctionHandler]: Unknown extern function notify_remote_via_irq [2022-12-14 07:41:14,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:41:14,298 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-12-14 07:41:14,298 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:14,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:41:14,299 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-12-14 07:41:14,300 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:14,300 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-12-14 07:41:14,301 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_discard_sectors [2022-12-14 07:41:14,301 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 07:41:14,301 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-12-14 07:41:14,301 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-12-14 07:41:14,302 WARN L623 FunctionHandler]: Unknown extern function blk_queue_segment_boundary [2022-12-14 07:41:14,302 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-12-14 07:41:14,302 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 07:41:14,302 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-12-14 07:41:14,302 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-12-14 07:41:14,306 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-12-14 07:41:14,306 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,310 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,316 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-12-14 07:41:14,318 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:14,318 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-12-14 07:41:14,318 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 07:41:14,319 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-12-14 07:41:14,320 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-12-14 07:41:14,320 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,320 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,321 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,322 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,323 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,324 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,324 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,325 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,325 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,325 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,326 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,326 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,326 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,327 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,327 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-12-14 07:41:14,327 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 07:41:14,328 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,328 WARN L623 FunctionHandler]: Unknown extern function unbind_from_irqhandler [2022-12-14 07:41:14,331 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1075 [2022-12-14 07:41:14,331 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1076 [2022-12-14 07:41:14,332 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 07:41:14,332 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-12-14 07:41:14,333 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 07:41:14,334 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,335 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,336 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-12-14 07:41:14,337 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 07:41:14,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,339 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-12-14 07:41:14,342 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:14,343 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:14,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,345 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:14,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,348 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,348 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:14,350 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,351 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:41:14,351 WARN L623 FunctionHandler]: Unknown extern function xenbus_grant_ring [2022-12-14 07:41:14,352 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-12-14 07:41:14,352 WARN L623 FunctionHandler]: Unknown extern function xenbus_alloc_evtchn [2022-12-14 07:41:14,352 WARN L623 FunctionHandler]: Unknown extern function bind_evtchn_to_irqhandler [2022-12-14 07:41:14,353 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,354 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_start [2022-12-14 07:41:14,354 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,355 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:14,355 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:14,356 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:14,357 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-12-14 07:41:14,357 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:41:14,357 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-12-14 07:41:14,358 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,358 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:14,358 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-12-14 07:41:14,358 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,359 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:14,360 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:14,360 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,360 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_and_legacy_disk_devices [2022-12-14 07:41:14,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,361 WARN L623 FunctionHandler]: Unknown extern function xenbus_read [2022-12-14 07:41:14,362 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 07:41:14,362 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,363 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,363 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,363 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 07:41:14,364 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:41:14,364 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 07:41:14,364 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 07:41:14,365 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 07:41:14,365 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 07:41:14,365 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,366 WARN L623 FunctionHandler]: Unknown extern function bio_endio [2022-12-14 07:41:14,366 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,366 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-12-14 07:41:14,367 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-14 07:41:14,368 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,369 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 07:41:14,370 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-12-14 07:41:14,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,370 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,371 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 07:41:14,371 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-12-14 07:41:14,371 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:14,371 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-12-14 07:41:14,373 WARN L623 FunctionHandler]: Unknown extern function bio_trim [2022-12-14 07:41:14,373 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 07:41:14,373 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-12-14 07:41:14,374 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,375 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:14,376 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:14,376 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_error [2022-12-14 07:41:14,389 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:14,389 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:14,389 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:14,390 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,391 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,391 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,394 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-12-14 07:41:14,395 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,395 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,395 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,396 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:41:14,396 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 07:41:14,397 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:14,397 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,398 WARN L623 FunctionHandler]: Unknown extern function revalidate_disk [2022-12-14 07:41:14,398 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,399 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,400 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,400 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-12-14 07:41:14,401 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,402 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,402 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,402 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-12-14 07:41:14,403 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,403 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-12-14 07:41:14,403 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-12-14 07:41:14,405 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,406 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:41:14,407 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:14,407 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,407 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:41:14,408 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,408 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:14,410 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-12-14 07:41:14,410 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:41:14,411 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:41:14,412 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-12-14 07:41:14,412 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:41:14,413 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,413 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-12-14 07:41:14,414 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_disk_devices [2022-12-14 07:41:14,414 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-12-14 07:41:14,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:41:14,415 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 07:41:14,415 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 07:41:14,415 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:41:14,424 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:41:14,424 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-12-14 07:41:14,425 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 07:41:14,426 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:14,427 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 07:41:14,428 WARN L623 FunctionHandler]: Unknown extern function __xenbus_register_frontend [2022-12-14 07:41:14,428 WARN L623 FunctionHandler]: Unknown extern function xenbus_unregister_driver [2022-12-14 07:41:14,441 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:41:14,450 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:41:14,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-12-14 07:41:14,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-12-14 07:41:14,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-12-14 07:41:14,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-12-14 07:41:14,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-12-14 07:41:14,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-12-14 07:41:14,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-12-14 07:41:14,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-12-14 07:41:14,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-12-14 07:41:14,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-12-14 07:41:14,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-12-14 07:41:14,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-12-14 07:41:14,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-12-14 07:41:14,476 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-12-14 07:41:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-12-14 07:41:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-12-14 07:41:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-12-14 07:41:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-12-14 07:41:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-12-14 07:41:14,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-12-14 07:41:14,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-12-14 07:41:14,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-12-14 07:41:14,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-12-14 07:41:14,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-12-14 07:41:14,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-12-14 07:41:14,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-12-14 07:41:14,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-12-14 07:41:14,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-12-14 07:41:14,480 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-12-14 07:41:14,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-12-14 07:41:14,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-12-14 07:41:14,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-12-14 07:41:14,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-12-14 07:41:14,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-12-14 07:41:14,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-12-14 07:41:14,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-12-14 07:41:14,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-12-14 07:41:14,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-12-14 07:41:14,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-12-14 07:41:14,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-12-14 07:41:14,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-12-14 07:41:14,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-12-14 07:41:14,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-12-14 07:41:14,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-12-14 07:41:14,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-12-14 07:41:14,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-12-14 07:41:14,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-12-14 07:41:14,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-12-14 07:41:14,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-12-14 07:41:14,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-12-14 07:41:14,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-12-14 07:41:14,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-12-14 07:41:14,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-12-14 07:41:14,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-12-14 07:41:14,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-12-14 07:41:14,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-12-14 07:41:14,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-12-14 07:41:14,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-12-14 07:41:14,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-12-14 07:41:14,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-12-14 07:41:14,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-12-14 07:41:14,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-12-14 07:41:14,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-12-14 07:41:14,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-12-14 07:41:14,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-12-14 07:41:14,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-12-14 07:41:14,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-12-14 07:41:14,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-12-14 07:41:14,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-12-14 07:41:14,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-12-14 07:41:14,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-12-14 07:41:14,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-12-14 07:41:14,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-12-14 07:41:14,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-12-14 07:41:14,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-12-14 07:41:14,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-12-14 07:41:14,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-12-14 07:41:14,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-12-14 07:41:14,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-12-14 07:41:14,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-12-14 07:41:14,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-12-14 07:41:14,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-12-14 07:41:14,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-12-14 07:41:14,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-12-14 07:41:14,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-12-14 07:41:14,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-12-14 07:41:14,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-12-14 07:41:14,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-12-14 07:41:14,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:41:14,649 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:41:14,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14 WrapperNode [2022-12-14 07:41:14,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:41:14,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:41:14,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:41:14,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:41:14,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,872 INFO L138 Inliner]: procedures = 675, calls = 2884, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5842 [2022-12-14 07:41:14,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:41:14,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:41:14,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:41:14,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:41:14,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:14,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:15,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:15,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:15,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:41:15,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:41:15,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:41:15,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:41:15,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (1/1) ... [2022-12-14 07:41:15,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:41:15,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:15,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:41:15,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:41:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-12-14 07:41:15,119 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-12-14 07:41:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 07:41:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 07:41:15,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-12-14 07:41:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-12-14 07:41:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 07:41:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 07:41:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-12-14 07:41:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 07:41:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-12-14 07:41:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:41:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 07:41:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:41:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-12-14 07:41:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 07:41:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-14 07:41:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-14 07:41:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-12-14 07:41:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-12-14 07:41:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-12-14 07:41:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-12-14 07:41:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 07:41:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 07:41:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-12-14 07:41:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-12-14 07:41:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 07:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-12-14 07:41:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:41:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-12-14 07:41:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:41:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-12-14 07:41:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-12-14 07:41:15,638 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:41:15,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:41:15,945 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:41:28,148 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:41:29,114 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:41:29,115 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-14 07:41:29,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:41:29 BoogieIcfgContainer [2022-12-14 07:41:29,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:41:29,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:41:29,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:41:29,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:41:29,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:41:11" (1/3) ... [2022-12-14 07:41:29,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6721313e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:41:29, skipping insertion in model container [2022-12-14 07:41:29,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:14" (2/3) ... [2022-12-14 07:41:29,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6721313e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:41:29, skipping insertion in model container [2022-12-14 07:41:29,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:41:29" (3/3) ... [2022-12-14 07:41:29,125 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-12-14 07:41:29,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:41:29,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-12-14 07:41:29,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:41:29,213 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;@109e6a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:41:29,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-12-14 07:41:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 1269 states, 752 states have (on average 1.3430851063829787) internal successors, (1010), 812 states have internal predecessors, (1010), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2022-12-14 07:41:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 07:41:29,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:29,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:41:29,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:41:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1513194889, now seen corresponding path program 1 times [2022-12-14 07:41:29,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:29,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862318656] [2022-12-14 07:41:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:29,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:41:29,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:29,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862318656] [2022-12-14 07:41:29,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862318656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:41:29,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:41:29,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:41:29,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047119631] [2022-12-14 07:41:29,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:41:29,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:41:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:41:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:41:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:41:29,872 INFO L87 Difference]: Start difference. First operand has 1269 states, 752 states have (on average 1.3430851063829787) internal successors, (1010), 812 states have internal predecessors, (1010), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 07:41:32,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:35,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:37,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:41:38,195 INFO L93 Difference]: Finished difference Result 2690 states and 3823 transitions. [2022-12-14 07:41:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:41:38,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-12-14 07:41:38,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:41:38,215 INFO L225 Difference]: With dead ends: 2690 [2022-12-14 07:41:38,215 INFO L226 Difference]: Without dead ends: 1433 [2022-12-14 07:41:38,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:41:38,225 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 1691 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:41:38,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 3215 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 07:41:38,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2022-12-14 07:41:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1428. [2022-12-14 07:41:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 848 states have (on average 1.2889150943396226) internal successors, (1093), 911 states have internal predecessors, (1093), 421 states have call successors, (421), 127 states have call predecessors, (421), 126 states have return successors, (419), 413 states have call predecessors, (419), 419 states have call successors, (419) [2022-12-14 07:41:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1933 transitions. [2022-12-14 07:41:38,332 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1933 transitions. Word has length 38 [2022-12-14 07:41:38,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:41:38,332 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1933 transitions. [2022-12-14 07:41:38,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 07:41:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1933 transitions. [2022-12-14 07:41:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 07:41:38,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:38,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:41:38,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:41:38,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:41:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1318028409, now seen corresponding path program 1 times [2022-12-14 07:41:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:38,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438160210] [2022-12-14 07:41:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:41:38,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:38,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438160210] [2022-12-14 07:41:38,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438160210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:41:38,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:41:38,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:41:38,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44542317] [2022-12-14 07:41:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:41:38,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:41:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:41:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:41:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:41:38,581 INFO L87 Difference]: Start difference. First operand 1428 states and 1933 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 07:41:41,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:45,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:49,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:51,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:41:51,896 INFO L93 Difference]: Finished difference Result 2695 states and 3651 transitions. [2022-12-14 07:41:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:41:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2022-12-14 07:41:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:41:51,910 INFO L225 Difference]: With dead ends: 2695 [2022-12-14 07:41:51,911 INFO L226 Difference]: Without dead ends: 2693 [2022-12-14 07:41:51,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:41:51,913 INFO L413 NwaCegarLoop]: 1786 mSDtfsCounter, 1581 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 4988 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:41:51,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 4988 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 768 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 07:41:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-12-14 07:41:52,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2514. [2022-12-14 07:41:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2514 states, 1499 states have (on average 1.2921947965310208) internal successors, (1937), 1592 states have internal predecessors, (1937), 758 states have call successors, (758), 225 states have call predecessors, (758), 224 states have return successors, (765), 739 states have call predecessors, (765), 756 states have call successors, (765) [2022-12-14 07:41:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2514 states to 2514 states and 3460 transitions. [2022-12-14 07:41:52,034 INFO L78 Accepts]: Start accepts. Automaton has 2514 states and 3460 transitions. Word has length 43 [2022-12-14 07:41:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:41:52,034 INFO L495 AbstractCegarLoop]: Abstraction has 2514 states and 3460 transitions. [2022-12-14 07:41:52,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 07:41:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2514 states and 3460 transitions. [2022-12-14 07:41:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 07:41:52,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:52,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:41:52,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:41:52,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:41:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:52,037 INFO L85 PathProgramCache]: Analyzing trace with hash 512021547, now seen corresponding path program 1 times [2022-12-14 07:41:52,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:52,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276231865] [2022-12-14 07:41:52,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:41:52,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:52,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276231865] [2022-12-14 07:41:52,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276231865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:41:52,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:41:52,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:41:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778596499] [2022-12-14 07:41:52,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:41:52,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:41:52,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:41:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:41:52,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:41:52,264 INFO L87 Difference]: Start difference. First operand 2514 states and 3460 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 07:41:54,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:41:58,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:01,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:42:04,297 INFO L93 Difference]: Finished difference Result 4712 states and 6451 transitions. [2022-12-14 07:42:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:42:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2022-12-14 07:42:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:42:04,324 INFO L225 Difference]: With dead ends: 4712 [2022-12-14 07:42:04,324 INFO L226 Difference]: Without dead ends: 4710 [2022-12-14 07:42:04,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:42:04,327 INFO L413 NwaCegarLoop]: 1986 mSDtfsCounter, 1473 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:42:04,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 5380 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 873 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2022-12-14 07:42:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2022-12-14 07:42:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 4315. [2022-12-14 07:42:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 2566 states have (on average 1.2868277474668746) internal successors, (3302), 2707 states have internal predecessors, (3302), 1326 states have call successors, (1326), 391 states have call predecessors, (1326), 390 states have return successors, (1351), 1291 states have call predecessors, (1351), 1324 states have call successors, (1351) [2022-12-14 07:42:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 5979 transitions. [2022-12-14 07:42:04,562 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 5979 transitions. Word has length 48 [2022-12-14 07:42:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:42:04,562 INFO L495 AbstractCegarLoop]: Abstraction has 4315 states and 5979 transitions. [2022-12-14 07:42:04,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 07:42:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 5979 transitions. [2022-12-14 07:42:04,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 07:42:04,563 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:42:04,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:42:04,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:42:04,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:42:04,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:42:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1191405201, now seen corresponding path program 1 times [2022-12-14 07:42:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:42:04,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691069538] [2022-12-14 07:42:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:42:04,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:42:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:42:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:42:04,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:42:04,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691069538] [2022-12-14 07:42:04,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691069538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:42:04,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:42:04,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:42:04,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974652068] [2022-12-14 07:42:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:42:04,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:42:04,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:42:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:42:04,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:42:04,786 INFO L87 Difference]: Start difference. First operand 4315 states and 5979 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 07:42:06,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:09,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:13,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:42:13,908 INFO L93 Difference]: Finished difference Result 4436 states and 6134 transitions. [2022-12-14 07:42:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:42:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-12-14 07:42:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:42:13,923 INFO L225 Difference]: With dead ends: 4436 [2022-12-14 07:42:13,923 INFO L226 Difference]: Without dead ends: 4434 [2022-12-14 07:42:13,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:42:13,926 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 1679 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:42:13,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3185 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-12-14 07:42:13,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2022-12-14 07:42:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 4315. [2022-12-14 07:42:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 2566 states have (on average 1.2864380358534684) internal successors, (3301), 2707 states have internal predecessors, (3301), 1326 states have call successors, (1326), 391 states have call predecessors, (1326), 391 states have return successors, (1352), 1292 states have call predecessors, (1352), 1324 states have call successors, (1352) [2022-12-14 07:42:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 5979 transitions. [2022-12-14 07:42:14,089 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 5979 transitions. Word has length 53 [2022-12-14 07:42:14,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:42:14,089 INFO L495 AbstractCegarLoop]: Abstraction has 4315 states and 5979 transitions. [2022-12-14 07:42:14,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 07:42:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 5979 transitions. [2022-12-14 07:42:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 07:42:14,091 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:42:14,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:42:14,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:42:14,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:42:14,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:42:14,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1975187997, now seen corresponding path program 1 times [2022-12-14 07:42:14,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:42:14,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281701240] [2022-12-14 07:42:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:42:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:42:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:42:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:42:14,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:42:14,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281701240] [2022-12-14 07:42:14,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281701240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:42:14,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:42:14,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:42:14,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664254036] [2022-12-14 07:42:14,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:42:14,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:42:14,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:42:14,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:42:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:42:14,287 INFO L87 Difference]: Start difference. First operand 4315 states and 5979 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:42:16,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:20,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:23,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:25,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:29,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:42:29,620 INFO L93 Difference]: Finished difference Result 6399 states and 8815 transitions. [2022-12-14 07:42:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:42:29,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2022-12-14 07:42:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:42:29,643 INFO L225 Difference]: With dead ends: 6399 [2022-12-14 07:42:29,644 INFO L226 Difference]: Without dead ends: 6397 [2022-12-14 07:42:29,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:42:29,647 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 1464 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 5376 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:42:29,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 5376 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 869 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2022-12-14 07:42:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6397 states. [2022-12-14 07:42:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6397 to 6136. [2022-12-14 07:42:29,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 3647 states have (on average 1.2840690978886755) internal successors, (4683), 3835 states have internal predecessors, (4683), 1898 states have call successors, (1898), 559 states have call predecessors, (1898), 559 states have return successors, (1934), 1849 states have call predecessors, (1934), 1896 states have call successors, (1934) [2022-12-14 07:42:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 8515 transitions. [2022-12-14 07:42:29,894 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 8515 transitions. Word has length 58 [2022-12-14 07:42:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:42:29,894 INFO L495 AbstractCegarLoop]: Abstraction has 6136 states and 8515 transitions. [2022-12-14 07:42:29,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:42:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 8515 transitions. [2022-12-14 07:42:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 07:42:29,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:42:29,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:42:29,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:42:29,896 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:42:29,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:42:29,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1143839251, now seen corresponding path program 1 times [2022-12-14 07:42:29,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:42:29,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704216691] [2022-12-14 07:42:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:42:29,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:42:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:42:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:42:30,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:42:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704216691] [2022-12-14 07:42:30,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704216691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:42:30,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:42:30,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:42:30,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459390938] [2022-12-14 07:42:30,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:42:30,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:42:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:42:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:42:30,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:42:30,086 INFO L87 Difference]: Start difference. First operand 6136 states and 8515 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:42:32,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:36,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:38,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:42,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:44,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:42:45,173 INFO L93 Difference]: Finished difference Result 6281 states and 8663 transitions. [2022-12-14 07:42:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:42:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-12-14 07:42:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:42:45,195 INFO L225 Difference]: With dead ends: 6281 [2022-12-14 07:42:45,195 INFO L226 Difference]: Without dead ends: 6279 [2022-12-14 07:42:45,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:42:45,198 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 1453 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 5364 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:42:45,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 5364 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 865 Invalid, 5 Unknown, 0 Unchecked, 14.8s Time] [2022-12-14 07:42:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2022-12-14 07:42:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 6142. [2022-12-14 07:42:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6142 states, 3650 states have (on average 1.2838356164383562) internal successors, (4686), 3838 states have internal predecessors, (4686), 1900 states have call successors, (1900), 560 states have call predecessors, (1900), 560 states have return successors, (1936), 1851 states have call predecessors, (1936), 1898 states have call successors, (1936) [2022-12-14 07:42:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 8522 transitions. [2022-12-14 07:42:45,460 INFO L78 Accepts]: Start accepts. Automaton has 6142 states and 8522 transitions. Word has length 63 [2022-12-14 07:42:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:42:45,460 INFO L495 AbstractCegarLoop]: Abstraction has 6142 states and 8522 transitions. [2022-12-14 07:42:45,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:42:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6142 states and 8522 transitions. [2022-12-14 07:42:45,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 07:42:45,462 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:42:45,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:42:45,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:42:45,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:42:45,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:42:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash -275147888, now seen corresponding path program 1 times [2022-12-14 07:42:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:42:45,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291757587] [2022-12-14 07:42:45,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:42:45,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:42:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:42:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:42:45,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:42:45,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291757587] [2022-12-14 07:42:45,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291757587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:42:45,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:42:45,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:42:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974620419] [2022-12-14 07:42:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:42:45,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:42:45,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:42:45,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:42:45,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:42:45,655 INFO L87 Difference]: Start difference. First operand 6142 states and 8522 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:42:47,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:49,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:52,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:54,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:56,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:58,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:42:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:42:58,536 INFO L93 Difference]: Finished difference Result 6144 states and 8524 transitions. [2022-12-14 07:42:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:42:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-12-14 07:42:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:42:58,551 INFO L225 Difference]: With dead ends: 6144 [2022-12-14 07:42:58,551 INFO L226 Difference]: Without dead ends: 6142 [2022-12-14 07:42:58,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:42:58,553 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 1674 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:42:58,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 3181 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-12-14 07:42:58,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2022-12-14 07:42:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 6140. [2022-12-14 07:42:58,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6140 states, 3649 states have (on average 1.283639353247465) internal successors, (4684), 3836 states have internal predecessors, (4684), 1900 states have call successors, (1900), 560 states have call predecessors, (1900), 560 states have return successors, (1936), 1851 states have call predecessors, (1936), 1898 states have call successors, (1936) [2022-12-14 07:42:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 8520 transitions. [2022-12-14 07:42:58,783 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 8520 transitions. Word has length 68 [2022-12-14 07:42:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:42:58,783 INFO L495 AbstractCegarLoop]: Abstraction has 6140 states and 8520 transitions. [2022-12-14 07:42:58,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:42:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 8520 transitions. [2022-12-14 07:42:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 07:42:58,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:42:58,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:42:58,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:42:58,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:42:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:42:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -869783656, now seen corresponding path program 1 times [2022-12-14 07:42:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:42:58,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005721575] [2022-12-14 07:42:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:42:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:42:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:42:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:42:58,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:42:58,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005721575] [2022-12-14 07:42:58,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005721575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:42:58,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:42:58,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:42:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891335219] [2022-12-14 07:42:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:42:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:42:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:42:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:42:58,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:42:58,986 INFO L87 Difference]: Start difference. First operand 6140 states and 8520 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:43:03,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:05,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:07,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:08,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:09,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:43:09,909 INFO L93 Difference]: Finished difference Result 6142 states and 8522 transitions. [2022-12-14 07:43:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:43:09,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-12-14 07:43:09,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:43:09,923 INFO L225 Difference]: With dead ends: 6142 [2022-12-14 07:43:09,924 INFO L226 Difference]: Without dead ends: 6140 [2022-12-14 07:43:09,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:43:09,926 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 1675 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:43:09,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 3173 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 07:43:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2022-12-14 07:43:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6138. [2022-12-14 07:43:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 3648 states have (on average 1.2834429824561404) internal successors, (4682), 3834 states have internal predecessors, (4682), 1900 states have call successors, (1900), 560 states have call predecessors, (1900), 560 states have return successors, (1936), 1851 states have call predecessors, (1936), 1898 states have call successors, (1936) [2022-12-14 07:43:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 8518 transitions. [2022-12-14 07:43:10,169 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 8518 transitions. Word has length 73 [2022-12-14 07:43:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:43:10,170 INFO L495 AbstractCegarLoop]: Abstraction has 6138 states and 8518 transitions. [2022-12-14 07:43:10,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:43:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 8518 transitions. [2022-12-14 07:43:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 07:43:10,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:43:10,171 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:43:10,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:43:10,171 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:43:10,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:43:10,172 INFO L85 PathProgramCache]: Analyzing trace with hash -487718677, now seen corresponding path program 1 times [2022-12-14 07:43:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:43:10,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823767115] [2022-12-14 07:43:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:43:10,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:43:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:43:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-12-14 07:43:10,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:43:10,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823767115] [2022-12-14 07:43:10,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823767115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:43:10,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:43:10,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:43:10,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195901188] [2022-12-14 07:43:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:43:10,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:43:10,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:43:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:43:10,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:43:10,844 INFO L87 Difference]: Start difference. First operand 6138 states and 8518 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:43:16,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:18,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:23,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:27,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:43:27,663 INFO L93 Difference]: Finished difference Result 6141 states and 8521 transitions. [2022-12-14 07:43:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:43:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-12-14 07:43:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:43:27,679 INFO L225 Difference]: With dead ends: 6141 [2022-12-14 07:43:27,679 INFO L226 Difference]: Without dead ends: 6139 [2022-12-14 07:43:27,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:43:27,682 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1661 mSDsluCounter, 3918 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 5407 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:43:27,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 5407 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1788 Invalid, 4 Unknown, 0 Unchecked, 16.3s Time] [2022-12-14 07:43:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2022-12-14 07:43:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6136. [2022-12-14 07:43:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 3647 states have (on average 1.2818755141211955) internal successors, (4675), 3832 states have internal predecessors, (4675), 1900 states have call successors, (1900), 560 states have call predecessors, (1900), 560 states have return successors, (1936), 1851 states have call predecessors, (1936), 1898 states have call successors, (1936) [2022-12-14 07:43:27,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 8511 transitions. [2022-12-14 07:43:27,954 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 8511 transitions. Word has length 88 [2022-12-14 07:43:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:43:27,954 INFO L495 AbstractCegarLoop]: Abstraction has 6136 states and 8511 transitions. [2022-12-14 07:43:27,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:43:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 8511 transitions. [2022-12-14 07:43:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 07:43:27,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:43:27,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:43:27,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 07:43:27,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:43:27,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:43:27,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1656664699, now seen corresponding path program 1 times [2022-12-14 07:43:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:43:27,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890425047] [2022-12-14 07:43:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:43:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:43:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:43:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:43:28,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:43:28,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890425047] [2022-12-14 07:43:28,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890425047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:43:28,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:43:28,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:43:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182572611] [2022-12-14 07:43:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:43:28,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:43:28,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:43:28,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:43:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:43:28,159 INFO L87 Difference]: Start difference. First operand 6136 states and 8511 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:43:30,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:34,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:37,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:39,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:42,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:43:42,680 INFO L93 Difference]: Finished difference Result 6383 states and 8795 transitions. [2022-12-14 07:43:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:43:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2022-12-14 07:43:42,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:43:42,703 INFO L225 Difference]: With dead ends: 6383 [2022-12-14 07:43:42,704 INFO L226 Difference]: Without dead ends: 6381 [2022-12-14 07:43:42,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:43:42,707 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 1449 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 5358 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:43:42,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 5358 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 07:43:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2022-12-14 07:43:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 6150. [2022-12-14 07:43:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 3655 states have (on average 1.2812585499316005) internal successors, (4683), 3840 states have internal predecessors, (4683), 1904 states have call successors, (1904), 562 states have call predecessors, (1904), 562 states have return successors, (1940), 1855 states have call predecessors, (1940), 1902 states have call successors, (1940) [2022-12-14 07:43:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8527 transitions. [2022-12-14 07:43:43,049 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8527 transitions. Word has length 75 [2022-12-14 07:43:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:43:43,050 INFO L495 AbstractCegarLoop]: Abstraction has 6150 states and 8527 transitions. [2022-12-14 07:43:43,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:43:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8527 transitions. [2022-12-14 07:43:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 07:43:43,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:43:43,051 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:43:43,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:43:43,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:43:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:43:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash 378720652, now seen corresponding path program 1 times [2022-12-14 07:43:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:43:43,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888008945] [2022-12-14 07:43:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:43:43,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:43:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:43:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-12-14 07:43:43,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:43:43,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888008945] [2022-12-14 07:43:43,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888008945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:43:43,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:43:43,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:43:43,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698707170] [2022-12-14 07:43:43,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:43:43,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:43:43,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:43:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:43:43,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:43:43,219 INFO L87 Difference]: Start difference. First operand 6150 states and 8527 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:43:47,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:49,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:43:50,009 INFO L93 Difference]: Finished difference Result 12268 states and 17092 transitions. [2022-12-14 07:43:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:43:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2022-12-14 07:43:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:43:50,034 INFO L225 Difference]: With dead ends: 12268 [2022-12-14 07:43:50,034 INFO L226 Difference]: Without dead ends: 6139 [2022-12-14 07:43:50,056 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 07:43:50,057 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 1648 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:43:50,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1677 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 07:43:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2022-12-14 07:43:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6136. [2022-12-14 07:43:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 3642 states have (on average 1.2789676002196595) internal successors, (4658), 3826 states have internal predecessors, (4658), 1904 states have call successors, (1904), 562 states have call predecessors, (1904), 562 states have return successors, (1940), 1855 states have call predecessors, (1940), 1902 states have call successors, (1940) [2022-12-14 07:43:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 8502 transitions. [2022-12-14 07:43:50,449 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 8502 transitions. Word has length 91 [2022-12-14 07:43:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:43:50,449 INFO L495 AbstractCegarLoop]: Abstraction has 6136 states and 8502 transitions. [2022-12-14 07:43:50,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 07:43:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 8502 transitions. [2022-12-14 07:43:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 07:43:50,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:43:50,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:43:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 07:43:50,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:43:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:43:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash 762930001, now seen corresponding path program 1 times [2022-12-14 07:43:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:43:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921596800] [2022-12-14 07:43:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:43:50,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:43:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:43:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:43:50,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:43:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921596800] [2022-12-14 07:43:50,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921596800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:43:50,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:43:50,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:43:50,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762136292] [2022-12-14 07:43:50,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:43:50,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:43:50,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:43:50,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:43:50,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:43:50,624 INFO L87 Difference]: Start difference. First operand 6136 states and 8502 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 07:43:52,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:53,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:43:57,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:00,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:01,465 INFO L93 Difference]: Finished difference Result 6138 states and 8504 transitions. [2022-12-14 07:44:01,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:44:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2022-12-14 07:44:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:01,478 INFO L225 Difference]: With dead ends: 6138 [2022-12-14 07:44:01,478 INFO L226 Difference]: Without dead ends: 6136 [2022-12-14 07:44:01,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:01,480 INFO L413 NwaCegarLoop]: 1483 mSDtfsCounter, 1661 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:01,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 3159 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-12-14 07:44:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-12-14 07:44:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 6134. [2022-12-14 07:44:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 3641 states have (on average 1.2787695687997802) internal successors, (4656), 3824 states have internal predecessors, (4656), 1904 states have call successors, (1904), 562 states have call predecessors, (1904), 562 states have return successors, (1940), 1855 states have call predecessors, (1940), 1902 states have call successors, (1940) [2022-12-14 07:44:01,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 8500 transitions. [2022-12-14 07:44:01,901 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 8500 transitions. Word has length 80 [2022-12-14 07:44:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:01,902 INFO L495 AbstractCegarLoop]: Abstraction has 6134 states and 8500 transitions. [2022-12-14 07:44:01,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 07:44:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 8500 transitions. [2022-12-14 07:44:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 07:44:01,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:01,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:44:01,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:44:01,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:44:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:01,903 INFO L85 PathProgramCache]: Analyzing trace with hash 284100592, now seen corresponding path program 1 times [2022-12-14 07:44:01,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:01,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487431633] [2022-12-14 07:44:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:01,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:44:02,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:02,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487431633] [2022-12-14 07:44:02,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487431633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:44:02,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:44:02,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:44:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308536442] [2022-12-14 07:44:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:44:02,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:44:02,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:44:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:44:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:44:02,090 INFO L87 Difference]: Start difference. First operand 6134 states and 8500 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:44:04,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:06,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:09,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:14,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:14,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:14,383 INFO L93 Difference]: Finished difference Result 6136 states and 8502 transitions. [2022-12-14 07:44:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:44:14,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-12-14 07:44:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:14,398 INFO L225 Difference]: With dead ends: 6136 [2022-12-14 07:44:14,399 INFO L226 Difference]: Without dead ends: 6134 [2022-12-14 07:44:14,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:14,401 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1658 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:14,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 3155 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-12-14 07:44:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2022-12-14 07:44:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6132. [2022-12-14 07:44:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6132 states, 3640 states have (on average 1.2785714285714285) internal successors, (4654), 3822 states have internal predecessors, (4654), 1904 states have call successors, (1904), 562 states have call predecessors, (1904), 562 states have return successors, (1940), 1855 states have call predecessors, (1940), 1902 states have call successors, (1940) [2022-12-14 07:44:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 8498 transitions. [2022-12-14 07:44:14,771 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 8498 transitions. Word has length 85 [2022-12-14 07:44:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:14,771 INFO L495 AbstractCegarLoop]: Abstraction has 6132 states and 8498 transitions. [2022-12-14 07:44:14,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:44:14,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 8498 transitions. [2022-12-14 07:44:14,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 07:44:14,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:14,773 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:44:14,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 07:44:14,773 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:44:14,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:14,773 INFO L85 PathProgramCache]: Analyzing trace with hash -601788264, now seen corresponding path program 1 times [2022-12-14 07:44:14,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:14,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243607490] [2022-12-14 07:44:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:14,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-14 07:44:15,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:15,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243607490] [2022-12-14 07:44:15,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243607490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:44:15,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:44:15,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:44:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365786548] [2022-12-14 07:44:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:44:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:44:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:44:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:44:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:15,222 INFO L87 Difference]: Start difference. First operand 6132 states and 8498 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:44:18,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:22,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:26,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:28,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:31,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:31,621 INFO L93 Difference]: Finished difference Result 6707 states and 9098 transitions. [2022-12-14 07:44:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:44:31,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-12-14 07:44:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:31,639 INFO L225 Difference]: With dead ends: 6707 [2022-12-14 07:44:31,639 INFO L226 Difference]: Without dead ends: 6705 [2022-12-14 07:44:31,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:44:31,642 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1378 mSDsluCounter, 5251 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 7195 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:31,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 7195 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1168 Invalid, 4 Unknown, 0 Unchecked, 15.8s Time] [2022-12-14 07:44:31,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-12-14 07:44:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6581. [2022-12-14 07:44:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6581 states, 3885 states have (on average 1.2676962676962678) internal successors, (4925), 4076 states have internal predecessors, (4925), 2004 states have call successors, (2004), 670 states have call predecessors, (2004), 666 states have return successors, (2040), 1942 states have call predecessors, (2040), 2002 states have call successors, (2040) [2022-12-14 07:44:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6581 states to 6581 states and 8969 transitions. [2022-12-14 07:44:32,016 INFO L78 Accepts]: Start accepts. Automaton has 6581 states and 8969 transitions. Word has length 117 [2022-12-14 07:44:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:32,017 INFO L495 AbstractCegarLoop]: Abstraction has 6581 states and 8969 transitions. [2022-12-14 07:44:32,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:44:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6581 states and 8969 transitions. [2022-12-14 07:44:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 07:44:32,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:32,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:44:32,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 07:44:32,019 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:44:32,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash -264868672, now seen corresponding path program 1 times [2022-12-14 07:44:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:32,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615846207] [2022-12-14 07:44:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:44:32,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:32,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615846207] [2022-12-14 07:44:32,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615846207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:44:32,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:44:32,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:44:32,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597895260] [2022-12-14 07:44:32,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:44:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:44:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:44:32,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:44:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:44:32,233 INFO L87 Difference]: Start difference. First operand 6581 states and 8969 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 07:44:34,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:38,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:41,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:43,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:43,989 INFO L93 Difference]: Finished difference Result 6690 states and 9080 transitions. [2022-12-14 07:44:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:44:43,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-12-14 07:44:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:44,001 INFO L225 Difference]: With dead ends: 6690 [2022-12-14 07:44:44,002 INFO L226 Difference]: Without dead ends: 6688 [2022-12-14 07:44:44,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:44,004 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 1429 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:44,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5315 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 864 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 07:44:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6688 states. [2022-12-14 07:44:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6688 to 6599. [2022-12-14 07:44:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 3894 states have (on average 1.2670775552131484) internal successors, (4934), 4085 states have internal predecessors, (4934), 2010 states have call successors, (2010), 673 states have call predecessors, (2010), 669 states have return successors, (2046), 1948 states have call predecessors, (2046), 2008 states have call successors, (2046) [2022-12-14 07:44:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 8990 transitions. [2022-12-14 07:44:44,377 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 8990 transitions. Word has length 90 [2022-12-14 07:44:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:44,377 INFO L495 AbstractCegarLoop]: Abstraction has 6599 states and 8990 transitions. [2022-12-14 07:44:44,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 07:44:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 8990 transitions. [2022-12-14 07:44:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 07:44:44,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:44,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:44:44,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 07:44:44,379 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:44:44,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:44,379 INFO L85 PathProgramCache]: Analyzing trace with hash -265174034, now seen corresponding path program 1 times [2022-12-14 07:44:44,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:44,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829716041] [2022-12-14 07:44:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:44,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:44:44,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:44,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829716041] [2022-12-14 07:44:44,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829716041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:44:44,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:44:44,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:44:44,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494812924] [2022-12-14 07:44:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:44:44,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:44:44,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:44:44,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:44:44,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:44:44,532 INFO L87 Difference]: Start difference. First operand 6599 states and 8990 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:44:47,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:50,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:54,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:44:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:44:55,145 INFO L93 Difference]: Finished difference Result 6688 states and 9078 transitions. [2022-12-14 07:44:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:44:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2022-12-14 07:44:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:44:55,158 INFO L225 Difference]: With dead ends: 6688 [2022-12-14 07:44:55,158 INFO L226 Difference]: Without dead ends: 6686 [2022-12-14 07:44:55,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:55,160 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 1426 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:44:55,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 5315 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 864 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-12-14 07:44:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2022-12-14 07:44:55,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 6605. [2022-12-14 07:44:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 3897 states have (on average 1.266871952784193) internal successors, (4937), 4088 states have internal predecessors, (4937), 2012 states have call successors, (2012), 674 states have call predecessors, (2012), 670 states have return successors, (2048), 1950 states have call predecessors, (2048), 2010 states have call successors, (2048) [2022-12-14 07:44:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 8997 transitions. [2022-12-14 07:44:55,534 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 8997 transitions. Word has length 95 [2022-12-14 07:44:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:44:55,535 INFO L495 AbstractCegarLoop]: Abstraction has 6605 states and 8997 transitions. [2022-12-14 07:44:55,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:44:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 8997 transitions. [2022-12-14 07:44:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 07:44:55,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:44:55,536 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:44:55,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 07:44:55,536 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:44:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:44:55,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1265653925, now seen corresponding path program 1 times [2022-12-14 07:44:55,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:44:55,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773624651] [2022-12-14 07:44:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:44:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:44:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:44:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-14 07:44:55,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:44:55,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773624651] [2022-12-14 07:44:55,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773624651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:44:55,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:44:55,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:44:55,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780231541] [2022-12-14 07:44:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:44:55,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:44:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:44:55,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:44:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:44:55,914 INFO L87 Difference]: Start difference. First operand 6605 states and 8997 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:44:59,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:01,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:05,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:09,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:10,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:45:10,795 INFO L93 Difference]: Finished difference Result 7161 states and 9591 transitions. [2022-12-14 07:45:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:45:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2022-12-14 07:45:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:45:10,808 INFO L225 Difference]: With dead ends: 7161 [2022-12-14 07:45:10,808 INFO L226 Difference]: Without dead ends: 7159 [2022-12-14 07:45:10,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:45:10,810 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1615 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 4840 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:45:10,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 4840 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 838 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2022-12-14 07:45:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7159 states. [2022-12-14 07:45:11,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 7139. [2022-12-14 07:45:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7139 states, 4187 states have (on average 1.2577024122283258) internal successors, (5266), 4382 states have internal predecessors, (5266), 2133 states have call successors, (2133), 797 states have call predecessors, (2133), 793 states have return successors, (2169), 2067 states have call predecessors, (2169), 2131 states have call successors, (2169) [2022-12-14 07:45:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7139 states to 7139 states and 9568 transitions. [2022-12-14 07:45:11,261 INFO L78 Accepts]: Start accepts. Automaton has 7139 states and 9568 transitions. Word has length 128 [2022-12-14 07:45:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:45:11,261 INFO L495 AbstractCegarLoop]: Abstraction has 7139 states and 9568 transitions. [2022-12-14 07:45:11,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:45:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7139 states and 9568 transitions. [2022-12-14 07:45:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-14 07:45:11,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:45:11,262 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:45:11,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 07:45:11,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:45:11,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:45:11,263 INFO L85 PathProgramCache]: Analyzing trace with hash 653046336, now seen corresponding path program 1 times [2022-12-14 07:45:11,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:45:11,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655283327] [2022-12-14 07:45:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:45:11,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:45:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:45:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-14 07:45:11,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:45:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655283327] [2022-12-14 07:45:11,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655283327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:45:11,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:45:11,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:45:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144217904] [2022-12-14 07:45:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:45:11,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:45:11,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:45:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:45:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:45:11,599 INFO L87 Difference]: Start difference. First operand 7139 states and 9568 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 07:45:14,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:16,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:18,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:20,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:24,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:27,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:29,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:31,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:32,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:45:32,083 INFO L93 Difference]: Finished difference Result 7567 states and 10004 transitions. [2022-12-14 07:45:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:45:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2022-12-14 07:45:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:45:32,102 INFO L225 Difference]: With dead ends: 7567 [2022-12-14 07:45:32,102 INFO L226 Difference]: Without dead ends: 7565 [2022-12-14 07:45:32,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:45:32,103 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 194 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:45:32,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 5986 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1095 Invalid, 5 Unknown, 0 Unchecked, 19.8s Time] [2022-12-14 07:45:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-12-14 07:45:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7441. [2022-12-14 07:45:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 4359 states have (on average 1.251663225510438) internal successors, (5456), 4555 states have internal predecessors, (5456), 2188 states have call successors, (2188), 872 states have call predecessors, (2188), 868 states have return successors, (2224), 2121 states have call predecessors, (2224), 2186 states have call successors, (2224) [2022-12-14 07:45:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 9868 transitions. [2022-12-14 07:45:32,597 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 9868 transitions. Word has length 129 [2022-12-14 07:45:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:45:32,597 INFO L495 AbstractCegarLoop]: Abstraction has 7441 states and 9868 transitions. [2022-12-14 07:45:32,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 07:45:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 9868 transitions. [2022-12-14 07:45:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 07:45:32,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:45:32,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:45:32,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 07:45:32,599 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:45:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:45:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1315181331, now seen corresponding path program 1 times [2022-12-14 07:45:32,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:45:32,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601563073] [2022-12-14 07:45:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:45:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:45:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:45:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:45:32,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:45:32,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601563073] [2022-12-14 07:45:32,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601563073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:45:32,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:45:32,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:45:32,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959797041] [2022-12-14 07:45:32,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:45:32,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:45:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:45:32,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:45:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:45:32,776 INFO L87 Difference]: Start difference. First operand 7441 states and 9868 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:45:35,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:37,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:40,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:43,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:45:43,752 INFO L93 Difference]: Finished difference Result 7444 states and 9871 transitions. [2022-12-14 07:45:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:45:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2022-12-14 07:45:43,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:45:43,765 INFO L225 Difference]: With dead ends: 7444 [2022-12-14 07:45:43,765 INFO L226 Difference]: Without dead ends: 7442 [2022-12-14 07:45:43,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:45:43,767 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 1645 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:45:43,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 3147 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 07:45:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2022-12-14 07:45:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 7439. [2022-12-14 07:45:44,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7439 states, 4358 states have (on average 1.2514915098669115) internal successors, (5454), 4553 states have internal predecessors, (5454), 2188 states have call successors, (2188), 872 states have call predecessors, (2188), 868 states have return successors, (2224), 2121 states have call predecessors, (2224), 2186 states have call successors, (2224) [2022-12-14 07:45:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7439 states to 7439 states and 9866 transitions. [2022-12-14 07:45:44,245 INFO L78 Accepts]: Start accepts. Automaton has 7439 states and 9866 transitions. Word has length 100 [2022-12-14 07:45:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:45:44,245 INFO L495 AbstractCegarLoop]: Abstraction has 7439 states and 9866 transitions. [2022-12-14 07:45:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:45:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7439 states and 9866 transitions. [2022-12-14 07:45:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 07:45:44,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:45:44,247 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:45:44,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 07:45:44,247 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:45:44,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:45:44,247 INFO L85 PathProgramCache]: Analyzing trace with hash 437022300, now seen corresponding path program 1 times [2022-12-14 07:45:44,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:45:44,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946619131] [2022-12-14 07:45:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:45:44,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:45:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:45:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-12-14 07:45:44,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:45:44,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946619131] [2022-12-14 07:45:44,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946619131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:45:44,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:45:44,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:45:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416721929] [2022-12-14 07:45:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:45:44,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:45:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:45:44,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:45:44,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:45:44,651 INFO L87 Difference]: Start difference. First operand 7439 states and 9866 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:45:46,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:49,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:52,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:56,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:45:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:45:58,204 INFO L93 Difference]: Finished difference Result 7901 states and 10306 transitions. [2022-12-14 07:45:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:45:58,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2022-12-14 07:45:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:45:58,217 INFO L225 Difference]: With dead ends: 7901 [2022-12-14 07:45:58,217 INFO L226 Difference]: Without dead ends: 7899 [2022-12-14 07:45:58,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:45:58,219 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 1287 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 4665 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:45:58,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 4665 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 850 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2022-12-14 07:45:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7899 states. [2022-12-14 07:45:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7899 to 7762. [2022-12-14 07:45:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7762 states, 4571 states have (on average 1.2465543644716692) internal successors, (5698), 4766 states have internal predecessors, (5698), 2207 states have call successors, (2207), 963 states have call predecessors, (2207), 959 states have return successors, (2243), 2140 states have call predecessors, (2243), 2205 states have call successors, (2243) [2022-12-14 07:45:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7762 states to 7762 states and 10148 transitions. [2022-12-14 07:45:58,730 INFO L78 Accepts]: Start accepts. Automaton has 7762 states and 10148 transitions. Word has length 123 [2022-12-14 07:45:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:45:58,730 INFO L495 AbstractCegarLoop]: Abstraction has 7762 states and 10148 transitions. [2022-12-14 07:45:58,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:45:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7762 states and 10148 transitions. [2022-12-14 07:45:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 07:45:58,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:45:58,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:45:58,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 07:45:58,738 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:45:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:45:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 228915610, now seen corresponding path program 1 times [2022-12-14 07:45:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:45:58,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78787658] [2022-12-14 07:45:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:45:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:45:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:45:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:45:58,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:45:58,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78787658] [2022-12-14 07:45:58,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78787658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:45:58,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:45:58,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:45:58,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22655225] [2022-12-14 07:45:58,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:45:58,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:45:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:45:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:45:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:45:58,922 INFO L87 Difference]: Start difference. First operand 7762 states and 10148 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 07:46:00,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:02,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:05,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:08,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:46:09,472 INFO L93 Difference]: Finished difference Result 7765 states and 10151 transitions. [2022-12-14 07:46:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:46:09,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-12-14 07:46:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:46:09,484 INFO L225 Difference]: With dead ends: 7765 [2022-12-14 07:46:09,484 INFO L226 Difference]: Without dead ends: 7763 [2022-12-14 07:46:09,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:46:09,486 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 1642 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:46:09,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 3143 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 07:46:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7763 states. [2022-12-14 07:46:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7763 to 7760. [2022-12-14 07:46:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 4570 states have (on average 1.2463894967177243) internal successors, (5696), 4764 states have internal predecessors, (5696), 2207 states have call successors, (2207), 963 states have call predecessors, (2207), 959 states have return successors, (2243), 2140 states have call predecessors, (2243), 2205 states have call successors, (2243) [2022-12-14 07:46:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 10146 transitions. [2022-12-14 07:46:10,060 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 10146 transitions. Word has length 105 [2022-12-14 07:46:10,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:46:10,061 INFO L495 AbstractCegarLoop]: Abstraction has 7760 states and 10146 transitions. [2022-12-14 07:46:10,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 07:46:10,061 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 10146 transitions. [2022-12-14 07:46:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 07:46:10,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:46:10,062 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-12-14 07:46:10,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 07:46:10,062 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:46:10,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:46:10,063 INFO L85 PathProgramCache]: Analyzing trace with hash -348731891, now seen corresponding path program 1 times [2022-12-14 07:46:10,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:46:10,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055228482] [2022-12-14 07:46:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:46:10,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:46:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:46:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-12-14 07:46:10,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:46:10,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055228482] [2022-12-14 07:46:10,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055228482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:46:10,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:46:10,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:46:10,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821871948] [2022-12-14 07:46:10,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:46:10,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:46:10,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:46:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:46:10,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:46:10,466 INFO L87 Difference]: Start difference. First operand 7760 states and 10146 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 07:46:13,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:15,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:20,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:24,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:26,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:28,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:30,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:46:30,543 INFO L93 Difference]: Finished difference Result 7772 states and 10152 transitions. [2022-12-14 07:46:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:46:30,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2022-12-14 07:46:30,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:46:30,557 INFO L225 Difference]: With dead ends: 7772 [2022-12-14 07:46:30,557 INFO L226 Difference]: Without dead ends: 7770 [2022-12-14 07:46:30,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:46:30,559 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 161 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:46:30,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 5943 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1077 Invalid, 4 Unknown, 0 Unchecked, 19.2s Time] [2022-12-14 07:46:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-12-14 07:46:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7760. [2022-12-14 07:46:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 4570 states have (on average 1.2437636761487965) internal successors, (5684), 4764 states have internal predecessors, (5684), 2207 states have call successors, (2207), 963 states have call predecessors, (2207), 959 states have return successors, (2243), 2140 states have call predecessors, (2243), 2205 states have call successors, (2243) [2022-12-14 07:46:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 10134 transitions. [2022-12-14 07:46:31,139 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 10134 transitions. Word has length 138 [2022-12-14 07:46:31,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:46:31,139 INFO L495 AbstractCegarLoop]: Abstraction has 7760 states and 10134 transitions. [2022-12-14 07:46:31,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-14 07:46:31,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 10134 transitions. [2022-12-14 07:46:31,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 07:46:31,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:46:31,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:46:31,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 07:46:31,141 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:46:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:46:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2047574771, now seen corresponding path program 1 times [2022-12-14 07:46:31,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:46:31,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544119574] [2022-12-14 07:46:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:46:31,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:46:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:46:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:46:31,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:46:31,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544119574] [2022-12-14 07:46:31,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544119574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:46:31,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:46:31,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:46:31,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689006958] [2022-12-14 07:46:31,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:46:31,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:46:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:46:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:46:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:46:31,453 INFO L87 Difference]: Start difference. First operand 7760 states and 10134 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 07:46:34,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:37,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:41,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:44,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:46:44,994 INFO L93 Difference]: Finished difference Result 7953 states and 10359 transitions. [2022-12-14 07:46:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:46:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2022-12-14 07:46:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:46:45,008 INFO L225 Difference]: With dead ends: 7953 [2022-12-14 07:46:45,008 INFO L226 Difference]: Without dead ends: 7951 [2022-12-14 07:46:45,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:46:45,010 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 1425 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 5319 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:46:45,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 5319 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 869 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 07:46:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-12-14 07:46:45,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7778. [2022-12-14 07:46:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 4579 states have (on average 1.2432845599475868) internal successors, (5693), 4773 states have internal predecessors, (5693), 2213 states have call successors, (2213), 966 states have call predecessors, (2213), 962 states have return successors, (2249), 2146 states have call predecessors, (2249), 2211 states have call successors, (2249) [2022-12-14 07:46:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 10155 transitions. [2022-12-14 07:46:45,606 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 10155 transitions. Word has length 110 [2022-12-14 07:46:45,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:46:45,606 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 10155 transitions. [2022-12-14 07:46:45,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 07:46:45,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 10155 transitions. [2022-12-14 07:46:45,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 07:46:45,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:46:45,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:46:45,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 07:46:45,608 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:46:45,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:46:45,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1712794873, now seen corresponding path program 1 times [2022-12-14 07:46:45,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:46:45,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509130691] [2022-12-14 07:46:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:46:45,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:46:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:46:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:46:45,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:46:45,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509130691] [2022-12-14 07:46:45,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509130691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:46:45,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:46:45,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:46:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593275086] [2022-12-14 07:46:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:46:45,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:46:45,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:46:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:46:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:46:45,768 INFO L87 Difference]: Start difference. First operand 7778 states and 10155 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:46:48,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:52,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:56,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:46:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:46:57,508 INFO L93 Difference]: Finished difference Result 7835 states and 10207 transitions. [2022-12-14 07:46:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:46:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2022-12-14 07:46:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:46:57,522 INFO L225 Difference]: With dead ends: 7835 [2022-12-14 07:46:57,522 INFO L226 Difference]: Without dead ends: 7833 [2022-12-14 07:46:57,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:46:57,525 INFO L413 NwaCegarLoop]: 1956 mSDtfsCounter, 1414 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:46:57,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 5307 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 07:46:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-12-14 07:46:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7784. [2022-12-14 07:46:58,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7784 states, 4582 states have (on average 1.2431252728066347) internal successors, (5696), 4776 states have internal predecessors, (5696), 2215 states have call successors, (2215), 967 states have call predecessors, (2215), 963 states have return successors, (2251), 2148 states have call predecessors, (2251), 2213 states have call successors, (2251) [2022-12-14 07:46:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7784 states to 7784 states and 10162 transitions. [2022-12-14 07:46:58,263 INFO L78 Accepts]: Start accepts. Automaton has 7784 states and 10162 transitions. Word has length 115 [2022-12-14 07:46:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:46:58,263 INFO L495 AbstractCegarLoop]: Abstraction has 7784 states and 10162 transitions. [2022-12-14 07:46:58,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:46:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7784 states and 10162 transitions. [2022-12-14 07:46:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 07:46:58,265 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:46:58,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:58,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 07:46:58,266 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:46:58,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:46:58,266 INFO L85 PathProgramCache]: Analyzing trace with hash -714810797, now seen corresponding path program 1 times [2022-12-14 07:46:58,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:46:58,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728059535] [2022-12-14 07:46:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:46:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:46:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:46:58,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:46:58,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:46:58,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728059535] [2022-12-14 07:46:58,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728059535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:46:58,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:46:58,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:46:58,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599066030] [2022-12-14 07:46:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:46:58,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:46:58,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:46:58,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:46:58,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:46:58,476 INFO L87 Difference]: Start difference. First operand 7784 states and 10162 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:47:03,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:08,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:08,809 INFO L93 Difference]: Finished difference Result 7786 states and 10164 transitions. [2022-12-14 07:47:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:47:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2022-12-14 07:47:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:08,822 INFO L225 Difference]: With dead ends: 7786 [2022-12-14 07:47:08,822 INFO L226 Difference]: Without dead ends: 7784 [2022-12-14 07:47:08,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:47:08,824 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 1645 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:08,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 3143 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2022-12-14 07:47:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7784 states. [2022-12-14 07:47:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7784 to 7782. [2022-12-14 07:47:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7782 states, 4581 states have (on average 1.2429600523903077) internal successors, (5694), 4774 states have internal predecessors, (5694), 2215 states have call successors, (2215), 967 states have call predecessors, (2215), 963 states have return successors, (2251), 2148 states have call predecessors, (2251), 2213 states have call successors, (2251) [2022-12-14 07:47:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7782 states to 7782 states and 10160 transitions. [2022-12-14 07:47:09,444 INFO L78 Accepts]: Start accepts. Automaton has 7782 states and 10160 transitions. Word has length 120 [2022-12-14 07:47:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:09,444 INFO L495 AbstractCegarLoop]: Abstraction has 7782 states and 10160 transitions. [2022-12-14 07:47:09,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:47:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7782 states and 10160 transitions. [2022-12-14 07:47:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-14 07:47:09,445 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:09,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:09,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 07:47:09,446 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:47:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1422387229, now seen corresponding path program 1 times [2022-12-14 07:47:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:09,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725078748] [2022-12-14 07:47:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:47:09,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:09,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725078748] [2022-12-14 07:47:09,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725078748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:09,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:09,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:47:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545431701] [2022-12-14 07:47:09,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:09,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:47:09,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:09,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:47:09,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:47:09,617 INFO L87 Difference]: Start difference. First operand 7782 states and 10160 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 07:47:12,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:16,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:19,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:20,942 INFO L93 Difference]: Finished difference Result 7829 states and 10201 transitions. [2022-12-14 07:47:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:47:20,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2022-12-14 07:47:20,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:20,963 INFO L225 Difference]: With dead ends: 7829 [2022-12-14 07:47:20,963 INFO L226 Difference]: Without dead ends: 7827 [2022-12-14 07:47:20,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:47:20,966 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1408 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:20,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 5301 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-12-14 07:47:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-12-14 07:47:21,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 7794. [2022-12-14 07:47:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7794 states, 4587 states have (on average 1.2426422498364944) internal successors, (5700), 4780 states have internal predecessors, (5700), 2219 states have call successors, (2219), 969 states have call predecessors, (2219), 965 states have return successors, (2255), 2152 states have call predecessors, (2255), 2217 states have call successors, (2255) [2022-12-14 07:47:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7794 states to 7794 states and 10174 transitions. [2022-12-14 07:47:21,699 INFO L78 Accepts]: Start accepts. Automaton has 7794 states and 10174 transitions. Word has length 125 [2022-12-14 07:47:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:21,699 INFO L495 AbstractCegarLoop]: Abstraction has 7794 states and 10174 transitions. [2022-12-14 07:47:21,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 07:47:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7794 states and 10174 transitions. [2022-12-14 07:47:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 07:47:21,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:21,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:21,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 07:47:21,701 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:47:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash 160589223, now seen corresponding path program 1 times [2022-12-14 07:47:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:21,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915892029] [2022-12-14 07:47:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:21,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:47:21,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:21,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915892029] [2022-12-14 07:47:21,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915892029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:21,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:21,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:47:21,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345756598] [2022-12-14 07:47:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:21,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:47:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:21,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:47:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:47:21,900 INFO L87 Difference]: Start difference. First operand 7794 states and 10174 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:47:24,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:28,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:31,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:33,064 INFO L93 Difference]: Finished difference Result 7827 states and 10199 transitions. [2022-12-14 07:47:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:47:33,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2022-12-14 07:47:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:33,083 INFO L225 Difference]: With dead ends: 7827 [2022-12-14 07:47:33,083 INFO L226 Difference]: Without dead ends: 7825 [2022-12-14 07:47:33,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:47:33,085 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1405 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:33,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 5301 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 07:47:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7825 states. [2022-12-14 07:47:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7825 to 7800. [2022-12-14 07:47:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7800 states, 4590 states have (on average 1.242483660130719) internal successors, (5703), 4783 states have internal predecessors, (5703), 2221 states have call successors, (2221), 970 states have call predecessors, (2221), 966 states have return successors, (2257), 2154 states have call predecessors, (2257), 2219 states have call successors, (2257) [2022-12-14 07:47:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7800 states to 7800 states and 10181 transitions. [2022-12-14 07:47:33,737 INFO L78 Accepts]: Start accepts. Automaton has 7800 states and 10181 transitions. Word has length 130 [2022-12-14 07:47:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:33,737 INFO L495 AbstractCegarLoop]: Abstraction has 7800 states and 10181 transitions. [2022-12-14 07:47:33,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:47:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7800 states and 10181 transitions. [2022-12-14 07:47:33,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 07:47:33,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:33,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:33,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 07:47:33,739 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:47:33,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:33,739 INFO L85 PathProgramCache]: Analyzing trace with hash 939607849, now seen corresponding path program 1 times [2022-12-14 07:47:33,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:33,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686377609] [2022-12-14 07:47:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:33,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:47:33,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686377609] [2022-12-14 07:47:33,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686377609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:33,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:33,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:47:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186518034] [2022-12-14 07:47:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:47:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:47:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:47:33,896 INFO L87 Difference]: Start difference. First operand 7800 states and 10181 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:47:36,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:40,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:43,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:45,207 INFO L93 Difference]: Finished difference Result 7825 states and 10197 transitions. [2022-12-14 07:47:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:47:45,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2022-12-14 07:47:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:45,222 INFO L225 Difference]: With dead ends: 7825 [2022-12-14 07:47:45,222 INFO L226 Difference]: Without dead ends: 7691 [2022-12-14 07:47:45,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:47:45,226 INFO L413 NwaCegarLoop]: 1955 mSDtfsCounter, 1401 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 5303 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:45,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 5303 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 07:47:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7691 states. [2022-12-14 07:47:45,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7691 to 7672. [2022-12-14 07:47:45,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7672 states, 4526 states have (on average 1.2450287229341581) internal successors, (5635), 4716 states have internal predecessors, (5635), 2177 states have call successors, (2177), 951 states have call predecessors, (2177), 946 states have return successors, (2211), 2112 states have call predecessors, (2211), 2173 states have call successors, (2211) [2022-12-14 07:47:45,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7672 states to 7672 states and 10023 transitions. [2022-12-14 07:47:45,954 INFO L78 Accepts]: Start accepts. Automaton has 7672 states and 10023 transitions. Word has length 135 [2022-12-14 07:47:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:45,954 INFO L495 AbstractCegarLoop]: Abstraction has 7672 states and 10023 transitions. [2022-12-14 07:47:45,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:47:45,955 INFO L276 IsEmpty]: Start isEmpty. Operand 7672 states and 10023 transitions. [2022-12-14 07:47:45,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 07:47:45,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:45,956 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:45,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 07:47:45,956 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:47:45,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1549012000, now seen corresponding path program 1 times [2022-12-14 07:47:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:45,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059722815] [2022-12-14 07:47:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:45,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-12-14 07:47:46,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:46,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059722815] [2022-12-14 07:47:46,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059722815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:46,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:46,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:47:46,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726798997] [2022-12-14 07:47:46,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:46,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:47:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:47:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:46,236 INFO L87 Difference]: Start difference. First operand 7672 states and 10023 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:47:49,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:53,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:56,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:57,569 INFO L93 Difference]: Finished difference Result 17381 states and 23359 transitions. [2022-12-14 07:47:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:47:57,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2022-12-14 07:47:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:57,588 INFO L225 Difference]: With dead ends: 17381 [2022-12-14 07:47:57,588 INFO L226 Difference]: Without dead ends: 9730 [2022-12-14 07:47:57,601 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 07:47:57,602 INFO L413 NwaCegarLoop]: 2073 mSDtfsCounter, 365 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:57,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 3670 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-12-14 07:47:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9730 states. [2022-12-14 07:47:58,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9730 to 7696. [2022-12-14 07:47:58,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7696 states, 4544 states have (on average 1.2440580985915493) internal successors, (5653), 4734 states have internal predecessors, (5653), 2183 states have call successors, (2183), 951 states have call predecessors, (2183), 946 states have return successors, (2217), 2118 states have call predecessors, (2217), 2179 states have call successors, (2217) [2022-12-14 07:47:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7696 states to 7696 states and 10053 transitions. [2022-12-14 07:47:58,343 INFO L78 Accepts]: Start accepts. Automaton has 7696 states and 10053 transitions. Word has length 155 [2022-12-14 07:47:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:58,343 INFO L495 AbstractCegarLoop]: Abstraction has 7696 states and 10053 transitions. [2022-12-14 07:47:58,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:47:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7696 states and 10053 transitions. [2022-12-14 07:47:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 07:47:58,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:58,345 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:58,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 07:47:58,345 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:47:58,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:58,345 INFO L85 PathProgramCache]: Analyzing trace with hash -455976586, now seen corresponding path program 1 times [2022-12-14 07:47:58,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:58,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120469069] [2022-12-14 07:47:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:58,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-12-14 07:47:58,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:58,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120469069] [2022-12-14 07:47:58,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120469069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:58,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:58,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:47:58,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585666230] [2022-12-14 07:47:58,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:58,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:47:58,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:58,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:47:58,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:47:58,696 INFO L87 Difference]: Start difference. First operand 7696 states and 10053 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:48:01,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:05,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:10,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:12,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:13,174 INFO L93 Difference]: Finished difference Result 7700 states and 10056 transitions. [2022-12-14 07:48:13,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:48:13,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2022-12-14 07:48:13,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:13,188 INFO L225 Difference]: With dead ends: 7700 [2022-12-14 07:48:13,188 INFO L226 Difference]: Without dead ends: 7698 [2022-12-14 07:48:13,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:48:13,190 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 406 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 5801 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:13,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 5801 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1042 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 07:48:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-12-14 07:48:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 7696. [2022-12-14 07:48:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7696 states, 4544 states have (on average 1.241637323943662) internal successors, (5642), 4734 states have internal predecessors, (5642), 2183 states have call successors, (2183), 951 states have call predecessors, (2183), 946 states have return successors, (2217), 2118 states have call predecessors, (2217), 2179 states have call successors, (2217) [2022-12-14 07:48:13,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7696 states to 7696 states and 10042 transitions. [2022-12-14 07:48:13,909 INFO L78 Accepts]: Start accepts. Automaton has 7696 states and 10042 transitions. Word has length 161 [2022-12-14 07:48:13,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:13,909 INFO L495 AbstractCegarLoop]: Abstraction has 7696 states and 10042 transitions. [2022-12-14 07:48:13,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:48:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7696 states and 10042 transitions. [2022-12-14 07:48:13,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-14 07:48:13,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:13,911 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:48:13,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 07:48:13,911 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:48:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:13,911 INFO L85 PathProgramCache]: Analyzing trace with hash -98368812, now seen corresponding path program 1 times [2022-12-14 07:48:13,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:13,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147043830] [2022-12-14 07:48:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:13,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:14,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:48:14,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689779223] [2022-12-14 07:48:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:14,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:14,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:48:14,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:48:14,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:48:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:14,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 3684 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:48:14,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-12-14 07:48:15,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:48:15,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:15,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147043830] [2022-12-14 07:48:15,854 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:48:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689779223] [2022-12-14 07:48:15,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689779223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:15,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:15,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:48:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849587686] [2022-12-14 07:48:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:15,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:48:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:48:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:48:15,856 INFO L87 Difference]: Start difference. First operand 7696 states and 10042 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-12-14 07:48:18,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:22,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:25,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:26,520 INFO L93 Difference]: Finished difference Result 7726 states and 10063 transitions. [2022-12-14 07:48:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:48:26,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2022-12-14 07:48:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:26,534 INFO L225 Difference]: With dead ends: 7726 [2022-12-14 07:48:26,534 INFO L226 Difference]: Without dead ends: 7724 [2022-12-14 07:48:26,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:48:26,536 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 1524 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:26,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 4650 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 07:48:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2022-12-14 07:48:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7721. [2022-12-14 07:48:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7721 states, 4561 states have (on average 1.2387634290725718) internal successors, (5650), 4750 states have internal predecessors, (5650), 2183 states have call successors, (2183), 960 states have call predecessors, (2183), 955 states have return successors, (2217), 2118 states have call predecessors, (2217), 2179 states have call successors, (2217) [2022-12-14 07:48:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7721 states to 7721 states and 10050 transitions. [2022-12-14 07:48:27,282 INFO L78 Accepts]: Start accepts. Automaton has 7721 states and 10050 transitions. Word has length 160 [2022-12-14 07:48:27,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:27,282 INFO L495 AbstractCegarLoop]: Abstraction has 7721 states and 10050 transitions. [2022-12-14 07:48:27,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-12-14 07:48:27,283 INFO L276 IsEmpty]: Start isEmpty. Operand 7721 states and 10050 transitions. [2022-12-14 07:48:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-14 07:48:27,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:27,284 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:27,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:48:27,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:27,486 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:48:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:27,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1745969746, now seen corresponding path program 1 times [2022-12-14 07:48:27,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:27,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727732211] [2022-12-14 07:48:27,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:27,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-12-14 07:48:28,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:28,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727732211] [2022-12-14 07:48:28,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727732211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:28,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:28,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:48:28,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340786686] [2022-12-14 07:48:28,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:28,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:48:28,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:28,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:48:28,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:48:28,106 INFO L87 Difference]: Start difference. First operand 7721 states and 10050 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:48:31,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:37,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:41,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:43,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:43,486 INFO L93 Difference]: Finished difference Result 17360 states and 23250 transitions. [2022-12-14 07:48:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:48:43,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2022-12-14 07:48:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:43,506 INFO L225 Difference]: With dead ends: 17360 [2022-12-14 07:48:43,507 INFO L226 Difference]: Without dead ends: 9660 [2022-12-14 07:48:43,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:48:43,520 INFO L413 NwaCegarLoop]: 1892 mSDtfsCounter, 237 mSDsluCounter, 9102 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 10994 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:43,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 10994 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1877 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2022-12-14 07:48:43,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9660 states. [2022-12-14 07:48:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9660 to 7751. [2022-12-14 07:48:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7751 states, 4579 states have (on average 1.2378248525879012) internal successors, (5668), 4768 states have internal predecessors, (5668), 2183 states have call successors, (2183), 960 states have call predecessors, (2183), 967 states have return successors, (2235), 2130 states have call predecessors, (2235), 2179 states have call successors, (2235) [2022-12-14 07:48:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7751 states to 7751 states and 10086 transitions. [2022-12-14 07:48:44,448 INFO L78 Accepts]: Start accepts. Automaton has 7751 states and 10086 transitions. Word has length 169 [2022-12-14 07:48:44,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:44,449 INFO L495 AbstractCegarLoop]: Abstraction has 7751 states and 10086 transitions. [2022-12-14 07:48:44,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:48:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 7751 states and 10086 transitions. [2022-12-14 07:48:44,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 07:48:44,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:44,451 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:44,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 07:48:44,451 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:48:44,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:44,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1110521085, now seen corresponding path program 1 times [2022-12-14 07:48:44,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:44,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630868580] [2022-12-14 07:48:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:44,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:44,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:48:44,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581804159] [2022-12-14 07:48:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:48:44,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:48:44,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:48:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:46,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:48:46,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-12-14 07:48:46,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:48:46,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:46,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630868580] [2022-12-14 07:48:46,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:48:46,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581804159] [2022-12-14 07:48:46,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581804159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:46,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:46,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:48:46,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361735330] [2022-12-14 07:48:46,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:46,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:48:46,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:46,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:48:46,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:48:46,360 INFO L87 Difference]: Start difference. First operand 7751 states and 10086 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:48:48,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:52,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:54,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:55,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:56,306 INFO L93 Difference]: Finished difference Result 15631 states and 20380 transitions. [2022-12-14 07:48:56,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:48:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2022-12-14 07:48:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:56,322 INFO L225 Difference]: With dead ends: 15631 [2022-12-14 07:48:56,322 INFO L226 Difference]: Without dead ends: 7901 [2022-12-14 07:48:56,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 07:48:56,335 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 16 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:56,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2830 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 07:48:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7901 states. [2022-12-14 07:48:57,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7901 to 7763. [2022-12-14 07:48:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7763 states, 4591 states have (on average 1.2372032236985406) internal successors, (5680), 4780 states have internal predecessors, (5680), 2183 states have call successors, (2183), 960 states have call predecessors, (2183), 967 states have return successors, (2235), 2130 states have call predecessors, (2235), 2179 states have call successors, (2235) [2022-12-14 07:48:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7763 states to 7763 states and 10098 transitions. [2022-12-14 07:48:57,118 INFO L78 Accepts]: Start accepts. Automaton has 7763 states and 10098 transitions. Word has length 174 [2022-12-14 07:48:57,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:57,118 INFO L495 AbstractCegarLoop]: Abstraction has 7763 states and 10098 transitions. [2022-12-14 07:48:57,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:48:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7763 states and 10098 transitions. [2022-12-14 07:48:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-14 07:48:57,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:57,121 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:57,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:48:57,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:57,322 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:48:57,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2128135787, now seen corresponding path program 1 times [2022-12-14 07:48:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:57,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762140258] [2022-12-14 07:48:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:57,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-12-14 07:48:58,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:58,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762140258] [2022-12-14 07:48:58,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762140258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:58,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:58,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:48:58,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363997640] [2022-12-14 07:48:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:58,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:48:58,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:58,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:48:58,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:48:58,036 INFO L87 Difference]: Start difference. First operand 7763 states and 10098 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:49:02,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:06,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:09,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:11,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:14,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:16,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:18,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:49:18,374 INFO L93 Difference]: Finished difference Result 8036 states and 10316 transitions. [2022-12-14 07:49:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:49:18,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 182 [2022-12-14 07:49:18,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:49:18,389 INFO L225 Difference]: With dead ends: 8036 [2022-12-14 07:49:18,389 INFO L226 Difference]: Without dead ends: 8034 [2022-12-14 07:49:18,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:49:18,391 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1586 mSDsluCounter, 3678 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 5220 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:49:18,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 5220 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 935 Invalid, 5 Unknown, 0 Unchecked, 19.2s Time] [2022-12-14 07:49:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8034 states. [2022-12-14 07:49:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8034 to 7838. [2022-12-14 07:49:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7838 states, 4643 states have (on average 1.2341158733577429) internal successors, (5730), 4830 states have internal predecessors, (5730), 2166 states have call successors, (2166), 1000 states have call predecessors, (2166), 1007 states have return successors, (2218), 2115 states have call predecessors, (2218), 2162 states have call successors, (2218) [2022-12-14 07:49:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7838 states to 7838 states and 10114 transitions. [2022-12-14 07:49:19,181 INFO L78 Accepts]: Start accepts. Automaton has 7838 states and 10114 transitions. Word has length 182 [2022-12-14 07:49:19,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:49:19,182 INFO L495 AbstractCegarLoop]: Abstraction has 7838 states and 10114 transitions. [2022-12-14 07:49:19,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:49:19,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7838 states and 10114 transitions. [2022-12-14 07:49:19,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-14 07:49:19,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:49:19,184 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:49:19,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 07:49:19,184 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:49:19,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:49:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1634370118, now seen corresponding path program 1 times [2022-12-14 07:49:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:49:19,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43186524] [2022-12-14 07:49:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:49:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:49:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:49:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-12-14 07:49:19,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:49:19,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43186524] [2022-12-14 07:49:19,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43186524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:49:19,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:49:19,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:49:19,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57602515] [2022-12-14 07:49:19,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:49:19,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:49:19,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:49:19,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:49:19,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:49:19,696 INFO L87 Difference]: Start difference. First operand 7838 states and 10114 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:49:22,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:26,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:30,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:31,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:33,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:49:34,541 INFO L93 Difference]: Finished difference Result 7846 states and 10118 transitions. [2022-12-14 07:49:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:49:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2022-12-14 07:49:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:49:34,557 INFO L225 Difference]: With dead ends: 7846 [2022-12-14 07:49:34,557 INFO L226 Difference]: Without dead ends: 7844 [2022-12-14 07:49:34,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:49:34,559 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 125 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 5741 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:49:34,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 5741 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 07:49:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2022-12-14 07:49:35,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 7836. [2022-12-14 07:49:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7836 states, 4642 states have (on average 1.2328737613097802) internal successors, (5723), 4828 states have internal predecessors, (5723), 2166 states have call successors, (2166), 1000 states have call predecessors, (2166), 1007 states have return successors, (2218), 2115 states have call predecessors, (2218), 2162 states have call successors, (2218) [2022-12-14 07:49:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 10107 transitions. [2022-12-14 07:49:35,361 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 10107 transitions. Word has length 198 [2022-12-14 07:49:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:49:35,362 INFO L495 AbstractCegarLoop]: Abstraction has 7836 states and 10107 transitions. [2022-12-14 07:49:35,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:49:35,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 10107 transitions. [2022-12-14 07:49:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-14 07:49:35,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:49:35,364 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:35,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 07:49:35,364 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:49:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:49:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 956091643, now seen corresponding path program 1 times [2022-12-14 07:49:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:49:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571715357] [2022-12-14 07:49:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:49:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:49:35,459 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:49:35,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942776895] [2022-12-14 07:49:35,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:49:35,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:49:35,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:49:35,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:49:35,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:49:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:49:36,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:49:36,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:49:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-12-14 07:49:36,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:49:36,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:49:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571715357] [2022-12-14 07:49:36,461 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:49:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942776895] [2022-12-14 07:49:36,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942776895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:49:36,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:49:36,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:49:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347039917] [2022-12-14 07:49:36,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:49:36,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:49:36,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:49:36,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:49:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:49:36,463 INFO L87 Difference]: Start difference. First operand 7836 states and 10107 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:49:38,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:39,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:42,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:48,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:51,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:52,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:55,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:49:55,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:49:55,842 INFO L93 Difference]: Finished difference Result 14390 states and 18949 transitions. [2022-12-14 07:49:55,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:49:55,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 192 [2022-12-14 07:49:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:49:55,862 INFO L225 Difference]: With dead ends: 14390 [2022-12-14 07:49:55,862 INFO L226 Difference]: Without dead ends: 8915 [2022-12-14 07:49:55,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:49:55,872 INFO L413 NwaCegarLoop]: 1780 mSDtfsCounter, 187 mSDsluCounter, 5060 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 6840 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:49:55,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 6840 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1163 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 07:49:55,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-12-14 07:49:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 7844. [2022-12-14 07:49:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7844 states, 4648 states have (on average 1.2325731497418244) internal successors, (5729), 4834 states have internal predecessors, (5729), 2166 states have call successors, (2166), 1000 states have call predecessors, (2166), 1009 states have return successors, (2222), 2117 states have call predecessors, (2222), 2162 states have call successors, (2222) [2022-12-14 07:49:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7844 states to 7844 states and 10117 transitions. [2022-12-14 07:49:56,735 INFO L78 Accepts]: Start accepts. Automaton has 7844 states and 10117 transitions. Word has length 192 [2022-12-14 07:49:56,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:49:56,735 INFO L495 AbstractCegarLoop]: Abstraction has 7844 states and 10117 transitions. [2022-12-14 07:49:56,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:49:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7844 states and 10117 transitions. [2022-12-14 07:49:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 07:49:56,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:49:56,738 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:56,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:49:56,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-14 07:49:56,940 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:49:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:49:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash 942139926, now seen corresponding path program 1 times [2022-12-14 07:49:56,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:49:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45878665] [2022-12-14 07:49:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:49:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:49:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:49:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-12-14 07:49:57,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:49:57,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45878665] [2022-12-14 07:49:57,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45878665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:49:57,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:49:57,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:49:57,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606279431] [2022-12-14 07:49:57,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:49:57,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:49:57,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:49:57,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:49:57,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:49:57,564 INFO L87 Difference]: Start difference. First operand 7844 states and 10117 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 07:50:00,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:03,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:05,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:07,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:09,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:16,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:19,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:50:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:50:20,158 INFO L93 Difference]: Finished difference Result 9862 states and 12586 transitions. [2022-12-14 07:50:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:50:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 248 [2022-12-14 07:50:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:50:20,174 INFO L225 Difference]: With dead ends: 9862 [2022-12-14 07:50:20,174 INFO L226 Difference]: Without dead ends: 8229 [2022-12-14 07:50:20,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:50:20,178 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 37 mSDsluCounter, 7497 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 9012 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:50:20,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 9012 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1615 Invalid, 6 Unknown, 0 Unchecked, 21.4s Time] [2022-12-14 07:50:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2022-12-14 07:50:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 7880. [2022-12-14 07:50:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 4672 states have (on average 1.2313784246575343) internal successors, (5753), 4858 states have internal predecessors, (5753), 2166 states have call successors, (2166), 1000 states have call predecessors, (2166), 1021 states have return successors, (2234), 2129 states have call predecessors, (2234), 2162 states have call successors, (2234) [2022-12-14 07:50:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10153 transitions. [2022-12-14 07:50:21,002 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10153 transitions. Word has length 248 [2022-12-14 07:50:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:50:21,002 INFO L495 AbstractCegarLoop]: Abstraction has 7880 states and 10153 transitions. [2022-12-14 07:50:21,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 07:50:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10153 transitions. [2022-12-14 07:50:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-14 07:50:21,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:50:21,005 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 07:50:21,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 07:50:21,005 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-12-14 07:50:21,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:50:21,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1945351887, now seen corresponding path program 1 times [2022-12-14 07:50:21,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:50:21,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947791311] [2022-12-14 07:50:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:50:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:50:21,115 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:50:21,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065638927] [2022-12-14 07:50:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:50:21,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:50:21,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:50:21,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:50:21,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce40b8ea-2c76-4ae7-b9f3-ec67ff12fd7e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:50:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:50:23,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 4109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:50:23,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:50:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-14 07:50:23,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:50:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-12-14 07:50:23,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:50:23,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947791311] [2022-12-14 07:50:23,755 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:50:23,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065638927] [2022-12-14 07:50:23,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065638927] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:50:23,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292109921] [2022-12-14 07:50:23,776 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-12-14 07:50:23,776 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:50:23,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:50:23,782 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:50:23,783 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:50:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:25,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:26,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 182 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 413 [2022-12-14 07:50:26,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 990 disjoint index pairs (out of 946 index pairs), introduced 44 new quantified variables, introduced 0 case distinctions, treesize of input 1460 treesize of output 1277 [2022-12-14 07:50:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:50:27,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 182 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 405 [2022-12-14 07:51:18,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 07:51:19,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 07:51:30,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:51:30,742 INFO L217 Elim1Store]: Index analysis took 362 ms [2022-12-14 07:51:37,287 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 514 DAG size of output: 418 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 07:51:37,289 INFO L321 Elim1Store]: treesize reduction 782, result has 50.0 percent of original size [2022-12-14 07:51:37,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 47 select indices, 47 select index equivalence classes, 1035 disjoint index pairs (out of 1081 index pairs), introduced 47 new quantified variables, introduced 92 case distinctions, treesize of input 1483 treesize of output 1856 [2022-12-14 07:51:42,327 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:42,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:51:42,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2022-12-14 07:51:43,930 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:44,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:50,007 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:50,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:51,910 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:51:52,491 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:02,047 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:02,452 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:05,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:05,858 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:10,063 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:10,373 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:13,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:13,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:52:13,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-12-14 07:52:20,506 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:20,920 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:22,070 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:22,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:52:22,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-12-14 07:52:25,519 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:25,937 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:27,728 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:28,166 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:34,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:52:34,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:52:34,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:52:34,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 07:52:35,117 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:38,009 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:38,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:42,664 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:43,042 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:45,559 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:46,101 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:54,433 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:54,927 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:58,109 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:52:58,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:01,751 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:02,128 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:05,345 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:05,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:53:05,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-12-14 07:53:13,442 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:13,918 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:17,125 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:17,756 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:21,484 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:21,886 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:24,429 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:24,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:53:24,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-12-14 07:53:31,468 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:31,824 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:33,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:33,734 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:36,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:53:36,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2022-12-14 07:53:36,924 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:37,992 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:38,458 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:41,405 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:41,932 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:43,650 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:44,284 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:48,846 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:49,654 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:51,172 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:52,009 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:56,616 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:57,052 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:58,969 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:53:59,528 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:03,138 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:04,000 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:05,527 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:06,380 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:08,171 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:08,713 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:10,329 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:10,904 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:13,631 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:14,312 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:16,633 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:17,193 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:17,509 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:17,780 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:18,024 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:18,479 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:18,965 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:20,266 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:20,831 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:21,054 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:21,325 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:21,739 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:22,301 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:22,659 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:23,780 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:24,337 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:25,540 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:25,900 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:27,492 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:28,047 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:29,892 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:30,445 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:32,270 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:33,091 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:35,051 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:35,626 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:37,606 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:38,455 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:41,328 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:42,303 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:45,418 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:46,006 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:49,165 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:49,792 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:52,843 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:53,321 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:56,372 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:54:57,185 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:55:00,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:55:01,129 WARN L207 Elim1Store]: Array PQE input equivalent to false