./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/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_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 23:52:17,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:52:17,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:52:18,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:52:18,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:52:18,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:52:18,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:52:18,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:52:18,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:52:18,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:52:18,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:52:18,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:52:18,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:52:18,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:52:18,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:52:18,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:52:18,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:52:18,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:52:18,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:52:18,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:52:18,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:52:18,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:52:18,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:52:18,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:52:18,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:52:18,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:52:18,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:52:18,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:52:18,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:52:18,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:52:18,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:52:18,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:52:18,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:52:18,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:52:18,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:52:18,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:52:18,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:52:18,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:52:18,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:52:18,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:52:18,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:52:18,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:52:18,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:52:18,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:52:18,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:52:18,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:52:18,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:52:18,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:52:18,087 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:52:18,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:52:18,087 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:52:18,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:52:18,088 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:52:18,088 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:52:18,089 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:52:18,089 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:52:18,089 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:52:18,090 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:52:18,090 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:52:18,090 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:52:18,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:52:18,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:52:18,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:52:18,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:52:18,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:52:18,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:52:18,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:52:18,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:52:18,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:52:18,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:52:18,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:52:18,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:52:18,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:52:18,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:52:18,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:52:18,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:52:18,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:52:18,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:52:18,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:52:18,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:52:18,098 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_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-11-25 23:52:18,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:52:18,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:52:18,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:52:18,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:52:18,425 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:52:18,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-25 23:52:21,599 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:52:22,403 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:52:22,404 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-25 23:52:22,490 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/data/064a270cd/535f7e28c91840169f2e028e797b820d/FLAGc1bdd8bec [2022-11-25 23:52:22,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/data/064a270cd/535f7e28c91840169f2e028e797b820d [2022-11-25 23:52:22,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:52:22,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:52:22,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:52:22,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:52:22,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:52:22,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:52:22" (1/1) ... [2022-11-25 23:52:22,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f0cb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:22, skipping insertion in model container [2022-11-25 23:52:22,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:52:22" (1/1) ... [2022-11-25 23:52:22,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:52:22,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:52:23,936 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:52:23,942 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:52:23,956 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:52:24,104 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:52:24,112 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:52:24,154 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:52:24,165 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:52:24,176 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:52:24,187 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:52:24,198 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:52:24,223 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:52:24,443 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:24,488 WARN L623 FunctionHandler]: Unknown extern function bio_clone_bioset [2022-11-25 23:52:24,518 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 23:52:24,549 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:52:24,821 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-11-25 23:52:24,822 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-11-25 23:52:24,862 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:24,864 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:24,865 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:24,866 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:24,873 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:24,874 WARN L623 FunctionHandler]: Unknown extern function gnttab_claim_grant_reference [2022-11-25 23:52:24,876 WARN L623 FunctionHandler]: Unknown extern function gnttab_grant_foreign_access_ref [2022-11-25 23:52:24,897 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:24,898 WARN L623 FunctionHandler]: Unknown extern function bitmap_set [2022-11-25 23:52:24,904 WARN L623 FunctionHandler]: Unknown extern function bitmap_clear [2022-11-25 23:52:24,923 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:24,926 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:24,927 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:52:24,955 WARN L623 FunctionHandler]: Unknown extern function gnttab_alloc_grant_references [2022-11-25 23:52:24,956 WARN L623 FunctionHandler]: Unknown extern function gnttab_request_free_callback [2022-11-25 23:52:24,962 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 23:52:24,969 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_506 [2022-11-25 23:52:24,971 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:24,979 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_552 [2022-11-25 23:52:24,979 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_553 [2022-11-25 23:52:24,982 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 23:52:24,983 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_571 [2022-11-25 23:52:25,002 WARN L623 FunctionHandler]: Unknown extern function gnttab_free_grant_references [2022-11-25 23:52:25,010 WARN L623 FunctionHandler]: Unknown extern function notify_remote_via_irq [2022-11-25 23:52:25,032 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:52:25,038 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 23:52:25,039 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:25,043 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:52:25,046 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-11-25 23:52:25,046 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:25,047 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 23:52:25,065 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_discard_sectors [2022-11-25 23:52:25,070 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:52:25,073 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-25 23:52:25,074 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-25 23:52:25,074 WARN L623 FunctionHandler]: Unknown extern function blk_queue_segment_boundary [2022-11-25 23:52:25,081 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 23:52:25,081 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:52:25,082 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-11-25 23:52:25,082 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 23:52:25,093 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-11-25 23:52:25,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,147 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-25 23:52:25,154 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:25,155 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-11-25 23:52:25,156 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:52:25,162 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-25 23:52:25,173 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:25,176 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:25,177 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,180 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:25,181 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,193 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:25,194 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:25,197 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,198 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:25,198 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,200 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,201 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:25,201 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,202 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,203 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,203 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,205 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-11-25 23:52:25,205 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:52:25,206 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,207 WARN L623 FunctionHandler]: Unknown extern function unbind_from_irqhandler [2022-11-25 23:52:25,230 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1075 [2022-11-25 23:52:25,230 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1076 [2022-11-25 23:52:25,231 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 23:52:25,233 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-11-25 23:52:25,235 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-25 23:52:25,236 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,237 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,238 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-11-25 23:52:25,241 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-25 23:52:25,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,243 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:25,260 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:25,265 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:25,268 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,269 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:25,269 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:25,274 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:25,281 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,282 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:52:25,283 WARN L623 FunctionHandler]: Unknown extern function xenbus_grant_ring [2022-11-25 23:52:25,283 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-25 23:52:25,284 WARN L623 FunctionHandler]: Unknown extern function xenbus_alloc_evtchn [2022-11-25 23:52:25,284 WARN L623 FunctionHandler]: Unknown extern function bind_evtchn_to_irqhandler [2022-11-25 23:52:25,285 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,291 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_start [2022-11-25 23:52:25,292 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,292 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:25,293 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:25,294 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:25,295 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:25,296 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:52:25,297 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-11-25 23:52:25,297 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,298 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:25,298 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-11-25 23:52:25,299 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,305 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:25,306 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:25,307 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,307 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_and_legacy_disk_devices [2022-11-25 23:52:25,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,309 WARN L623 FunctionHandler]: Unknown extern function xenbus_read [2022-11-25 23:52:25,309 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 23:52:25,310 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,311 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,311 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,312 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:52:25,312 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:52:25,313 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:52:25,314 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:52:25,315 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-11-25 23:52:25,315 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-25 23:52:25,316 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,322 WARN L623 FunctionHandler]: Unknown extern function bio_endio [2022-11-25 23:52:25,323 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,323 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 23:52:25,328 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 23:52:25,330 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,331 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:52:25,333 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-11-25 23:52:25,334 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,335 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,336 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:25,336 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-11-25 23:52:25,337 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:25,338 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-11-25 23:52:25,341 WARN L623 FunctionHandler]: Unknown extern function bio_trim [2022-11-25 23:52:25,341 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 23:52:25,342 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 23:52:25,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:25,355 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:25,356 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:25,356 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_error [2022-11-25 23:52:25,357 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:25,357 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:25,358 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:25,363 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,364 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,367 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,372 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 23:52:25,372 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,375 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:25,378 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:25,384 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:25,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,387 WARN L623 FunctionHandler]: Unknown extern function revalidate_disk [2022-11-25 23:52:25,395 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:25,397 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,404 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,407 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:25,408 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,409 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,410 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,411 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:25,412 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,413 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:25,413 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:25,423 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:25,430 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:25,431 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:25,432 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,432 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:52:25,433 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,433 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:25,450 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:25,451 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:25,452 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:52:25,453 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:25,453 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:52:25,454 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,454 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:25,461 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_disk_devices [2022-11-25 23:52:25,461 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 23:52:25,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:25,463 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:52:25,469 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:52:25,469 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:25,606 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:52:25,640 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 23:52:25,641 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 23:52:25,642 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:52:25,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:25,644 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:52:25,644 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 23:52:25,645 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:52:25,646 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:25,648 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:52:25,652 WARN L623 FunctionHandler]: Unknown extern function __xenbus_register_frontend [2022-11-25 23:52:25,653 WARN L623 FunctionHandler]: Unknown extern function xenbus_unregister_driver [2022-11-25 23:52:26,165 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:52:26,436 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:52:26,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-25 23:52:26,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-25 23:52:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-25 23:52:26,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-25 23:52:26,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-25 23:52:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-25 23:52:26,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-25 23:52:26,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-25 23:52:27,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-25 23:52:27,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-25 23:52:27,006 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-25 23:52:27,009 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-25 23:52:27,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-25 23:52:27,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-25 23:52:27,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-25 23:52:27,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-25 23:52:27,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-25 23:52:27,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-25 23:52:27,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-25 23:52:27,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-25 23:52:27,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-25 23:52:27,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-25 23:52:27,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-25 23:52:27,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-25 23:52:27,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-25 23:52:27,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-25 23:52:27,020 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-25 23:52:27,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-25 23:52:27,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-25 23:52:27,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-25 23:52:27,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-25 23:52:27,022 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-25 23:52:27,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-25 23:52:27,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-25 23:52:27,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-25 23:52:27,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-25 23:52:27,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-25 23:52:27,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-25 23:52:27,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-25 23:52:27,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-25 23:52:27,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-25 23:52:27,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-25 23:52:27,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-25 23:52:27,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-25 23:52:27,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-25 23:52:27,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-25 23:52:27,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-25 23:52:27,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-25 23:52:27,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-25 23:52:27,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-25 23:52:27,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-25 23:52:27,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-25 23:52:27,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-25 23:52:27,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-25 23:52:27,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-25 23:52:27,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-25 23:52:27,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-25 23:52:27,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-25 23:52:27,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-25 23:52:27,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-25 23:52:27,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-25 23:52:27,036 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-25 23:52:27,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-25 23:52:27,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-25 23:52:27,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-25 23:52:27,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-25 23:52:27,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-25 23:52:27,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-25 23:52:27,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-25 23:52:27,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-25 23:52:27,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-25 23:52:27,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-25 23:52:27,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-25 23:52:27,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-25 23:52:27,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-25 23:52:27,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-25 23:52:27,043 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-25 23:52:27,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-25 23:52:27,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-25 23:52:27,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-25 23:52:27,045 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-25 23:52:27,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-25 23:52:27,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-25 23:52:27,047 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-25 23:52:27,047 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-25 23:52:27,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-25 23:52:27,048 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-25 23:52:27,049 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-25 23:52:27,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:52:27,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:52:27,241 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:52:27,241 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 23:52:27,242 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-25 23:52:27,246 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:52:27,247 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:52:27,248 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:52:27,248 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:52:27,249 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:52:27,249 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:52:27,249 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:52:27,253 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:52:27,259 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:27,263 WARN L623 FunctionHandler]: Unknown extern function bio_clone_bioset [2022-11-25 23:52:27,269 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-11-25 23:52:27,270 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:52:27,273 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-11-25 23:52:27,274 WARN L623 FunctionHandler]: Unknown extern function get_phys_to_machine [2022-11-25 23:52:27,278 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,279 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,280 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,280 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,281 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,282 WARN L623 FunctionHandler]: Unknown extern function gnttab_claim_grant_reference [2022-11-25 23:52:27,283 WARN L623 FunctionHandler]: Unknown extern function gnttab_grant_foreign_access_ref [2022-11-25 23:52:27,290 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,290 WARN L623 FunctionHandler]: Unknown extern function bitmap_set [2022-11-25 23:52:27,291 WARN L623 FunctionHandler]: Unknown extern function bitmap_clear [2022-11-25 23:52:27,296 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,298 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:52:27,302 WARN L623 FunctionHandler]: Unknown extern function gnttab_alloc_grant_references [2022-11-25 23:52:27,302 WARN L623 FunctionHandler]: Unknown extern function gnttab_request_free_callback [2022-11-25 23:52:27,305 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 23:52:27,312 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_506 [2022-11-25 23:52:27,313 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,316 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_552 [2022-11-25 23:52:27,316 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_553 [2022-11-25 23:52:27,317 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 23:52:27,318 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_571 [2022-11-25 23:52:27,322 WARN L623 FunctionHandler]: Unknown extern function gnttab_free_grant_references [2022-11-25 23:52:27,324 WARN L623 FunctionHandler]: Unknown extern function notify_remote_via_irq [2022-11-25 23:52:27,327 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:52:27,327 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 23:52:27,328 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:27,329 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:52:27,330 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-11-25 23:52:27,331 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:27,331 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 23:52:27,332 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_discard_sectors [2022-11-25 23:52:27,333 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:52:27,333 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-25 23:52:27,333 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-25 23:52:27,333 WARN L623 FunctionHandler]: Unknown extern function blk_queue_segment_boundary [2022-11-25 23:52:27,333 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-25 23:52:27,334 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:52:27,334 WARN L623 FunctionHandler]: Unknown extern function blk_queue_dma_alignment [2022-11-25 23:52:27,334 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 23:52:27,338 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-11-25 23:52:27,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,343 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,353 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-25 23:52:27,355 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:27,355 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-11-25 23:52:27,355 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:52:27,356 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-25 23:52:27,357 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-25 23:52:27,359 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,359 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,360 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,360 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,361 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,362 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,363 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,363 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,364 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,368 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,369 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,369 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,369 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,371 WARN L623 FunctionHandler]: Unknown extern function gnttab_cancel_free_callback [2022-11-25 23:52:27,371 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 23:52:27,371 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,371 WARN L623 FunctionHandler]: Unknown extern function unbind_from_irqhandler [2022-11-25 23:52:27,374 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1075 [2022-11-25 23:52:27,378 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1076 [2022-11-25 23:52:27,378 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 23:52:27,379 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-11-25 23:52:27,380 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-25 23:52:27,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,381 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,382 WARN L623 FunctionHandler]: Unknown extern function gnttab_query_foreign_access [2022-11-25 23:52:27,383 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-25 23:52:27,384 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,386 WARN L623 FunctionHandler]: Unknown extern function gnttab_end_foreign_access [2022-11-25 23:52:27,391 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:27,392 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:27,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,394 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:27,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,399 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,400 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:27,402 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,402 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:52:27,403 WARN L623 FunctionHandler]: Unknown extern function xenbus_grant_ring [2022-11-25 23:52:27,403 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-25 23:52:27,403 WARN L623 FunctionHandler]: Unknown extern function xenbus_alloc_evtchn [2022-11-25 23:52:27,403 WARN L623 FunctionHandler]: Unknown extern function bind_evtchn_to_irqhandler [2022-11-25 23:52:27,404 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,405 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_start [2022-11-25 23:52:27,405 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,406 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:27,408 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:27,410 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:27,410 WARN L623 FunctionHandler]: Unknown extern function xenbus_printf [2022-11-25 23:52:27,411 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:52:27,411 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-11-25 23:52:27,411 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,412 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:27,412 WARN L623 FunctionHandler]: Unknown extern function xenbus_transaction_end [2022-11-25 23:52:27,412 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,413 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:27,418 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:27,419 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,419 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_and_legacy_disk_devices [2022-11-25 23:52:27,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,420 WARN L623 FunctionHandler]: Unknown extern function xenbus_read [2022-11-25 23:52:27,421 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 23:52:27,421 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,421 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,422 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,422 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:52:27,422 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:52:27,423 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:52:27,423 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:52:27,424 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-11-25 23:52:27,424 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-25 23:52:27,424 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,425 WARN L623 FunctionHandler]: Unknown extern function bio_endio [2022-11-25 23:52:27,426 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,426 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-25 23:52:27,427 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 23:52:27,428 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,428 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:52:27,429 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-11-25 23:52:27,431 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,432 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,432 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:52:27,433 WARN L623 FunctionHandler]: Unknown extern function blk_fetch_request [2022-11-25 23:52:27,433 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:27,434 WARN L623 FunctionHandler]: Unknown extern function blk_requeue_request [2022-11-25 23:52:27,436 WARN L623 FunctionHandler]: Unknown extern function bio_trim [2022-11-25 23:52:27,436 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 23:52:27,436 WARN L623 FunctionHandler]: Unknown extern function submit_bio [2022-11-25 23:52:27,439 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,440 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:27,440 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:27,440 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_error [2022-11-25 23:52:27,441 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:27,441 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:27,441 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:27,442 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,442 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,444 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,449 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 23:52:27,450 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,450 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,450 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,451 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 23:52:27,451 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 23:52:27,453 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:27,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,455 WARN L623 FunctionHandler]: Unknown extern function revalidate_disk [2022-11-25 23:52:27,457 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,458 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,459 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,459 WARN L623 FunctionHandler]: Unknown extern function xenbus_scanf [2022-11-25 23:52:27,460 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,460 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,461 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,462 WARN L623 FunctionHandler]: Unknown extern function xenbus_gather [2022-11-25 23:52:27,462 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,463 WARN L623 FunctionHandler]: Unknown extern function xenbus_dev_fatal [2022-11-25 23:52:27,464 WARN L623 FunctionHandler]: Unknown extern function xenbus_switch_state [2022-11-25 23:52:27,465 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,467 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:52:27,468 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:27,468 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,468 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:52:27,469 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,469 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:27,475 WARN L623 FunctionHandler]: Unknown extern function bdget_disk [2022-11-25 23:52:27,475 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:52:27,476 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:52:27,477 WARN L623 FunctionHandler]: Unknown extern function xenbus_frontend_closed [2022-11-25 23:52:27,477 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:52:27,478 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,478 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-25 23:52:27,480 WARN L623 FunctionHandler]: Unknown extern function xen_has_pv_disk_devices [2022-11-25 23:52:27,480 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 23:52:27,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:52:27,481 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:52:27,481 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:52:27,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:52:27,493 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:52:27,494 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 23:52:27,494 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 23:52:27,495 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:52:27,495 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:27,495 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:52:27,495 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 23:52:27,498 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:52:27,499 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:27,500 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:52:27,501 WARN L623 FunctionHandler]: Unknown extern function __xenbus_register_frontend [2022-11-25 23:52:27,501 WARN L623 FunctionHandler]: Unknown extern function xenbus_unregister_driver [2022-11-25 23:52:27,518 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:52:27,530 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:52:27,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-25 23:52:27,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-25 23:52:27,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-25 23:52:27,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-25 23:52:27,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-25 23:52:27,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-25 23:52:27,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-25 23:52:27,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-25 23:52:27,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-25 23:52:27,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-25 23:52:27,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-25 23:52:27,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-25 23:52:27,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-25 23:52:27,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-25 23:52:27,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-25 23:52:27,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-25 23:52:27,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-25 23:52:27,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-25 23:52:27,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-25 23:52:27,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-25 23:52:27,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-25 23:52:27,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-25 23:52:27,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-25 23:52:27,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-25 23:52:27,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-25 23:52:27,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-25 23:52:27,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-25 23:52:27,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-25 23:52:27,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-25 23:52:27,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-25 23:52:27,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-25 23:52:27,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-25 23:52:27,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-25 23:52:27,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-25 23:52:27,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-25 23:52:27,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-25 23:52:27,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-25 23:52:27,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-25 23:52:27,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-25 23:52:27,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-25 23:52:27,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-25 23:52:27,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-25 23:52:27,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-25 23:52:27,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-25 23:52:27,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-25 23:52:27,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-25 23:52:27,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-25 23:52:27,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-25 23:52:27,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-25 23:52:27,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-25 23:52:27,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-25 23:52:27,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-25 23:52:27,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-25 23:52:27,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-25 23:52:27,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-25 23:52:27,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-25 23:52:27,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-25 23:52:27,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-25 23:52:27,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-25 23:52:27,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-25 23:52:27,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-25 23:52:27,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-25 23:52:27,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-25 23:52:27,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-25 23:52:27,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-25 23:52:27,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-25 23:52:27,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-25 23:52:27,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-25 23:52:27,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-25 23:52:27,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-25 23:52:27,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-25 23:52:27,648 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-25 23:52:27,648 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-25 23:52:27,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-25 23:52:27,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-25 23:52:27,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-25 23:52:27,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-25 23:52:27,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-25 23:52:27,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-25 23:52:27,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-25 23:52:27,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-25 23:52:27,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-25 23:52:27,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-25 23:52:27,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-25 23:52:27,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-25 23:52:27,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-25 23:52:27,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-25 23:52:27,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-25 23:52:27,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:52:27,880 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:52:27,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27 WrapperNode [2022-11-25 23:52:27,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:52:27,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:52:27,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:52:27,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:52:27,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:27,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,185 INFO L138 Inliner]: procedures = 675, calls = 2884, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5842 [2022-11-25 23:52:28,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:52:28,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:52:28,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:52:28,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:52:28,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,485 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:52:28,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:52:28,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:52:28,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:52:28,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (1/1) ... [2022-11-25 23:52:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:52:28,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:28,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:52:28,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:52:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-11-25 23:52:28,635 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-11-25 23:52:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-25 23:52:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:52:28,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 23:52:28,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:52:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:52:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:52:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:52:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:52:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 23:52:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-11-25 23:52:28,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-11-25 23:52:28,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:52:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 23:52:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-25 23:52:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-25 23:52:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-25 23:52:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-25 23:52:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-11-25 23:52:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-11-25 23:52:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:52:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 23:52:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-25 23:52:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-25 23:52:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:52:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 23:52:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-11-25 23:52:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-11-25 23:52:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-25 23:52:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-25 23:52:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:52:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:52:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-11-25 23:52:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-11-25 23:52:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:52:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:52:28,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:52:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 23:52:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-11-25 23:52:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-11-25 23:52:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:52:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-25 23:52:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-25 23:52:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 23:52:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 23:52:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:52:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 23:52:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-11-25 23:52:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-11-25 23:52:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-11-25 23:52:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-11-25 23:52:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:52:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-11-25 23:52:28,641 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-11-25 23:52:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-25 23:52:28,642 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-25 23:52:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-25 23:52:28,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-25 23:52:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:52:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-25 23:52:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-25 23:52:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-25 23:52:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-25 23:52:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-25 23:52:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-25 23:52:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:52:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:52:28,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-11-25 23:52:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-11-25 23:52:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:52:28,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 23:52:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:52:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:52:28,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 23:52:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 23:52:28,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 23:52:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:52:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:52:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:52:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 23:52:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:52:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:52:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 23:52:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 23:52:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-25 23:52:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-25 23:52:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:52:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 23:52:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-11-25 23:52:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-11-25 23:52:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-25 23:52:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-25 23:52:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:52:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 23:52:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:52:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-25 23:52:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-25 23:52:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-11-25 23:52:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-11-25 23:52:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-25 23:52:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-25 23:52:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-25 23:52:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:52:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-11-25 23:52:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:52:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-25 23:52:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-25 23:52:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-25 23:52:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-25 23:52:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-25 23:52:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-25 23:52:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-25 23:52:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-25 23:52:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-11-25 23:52:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-11-25 23:52:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:52:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 23:52:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-25 23:52:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-25 23:52:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:52:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:52:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-25 23:52:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-25 23:52:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-11-25 23:52:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-11-25 23:52:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-25 23:52:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-25 23:52:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:52:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:52:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:52:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:52:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-11-25 23:52:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-11-25 23:52:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:52:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 23:52:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-25 23:52:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-25 23:52:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-25 23:52:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-25 23:52:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-25 23:52:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-25 23:52:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-11-25 23:52:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-11-25 23:52:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:52:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:52:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:52:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 23:52:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-25 23:52:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-25 23:52:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:52:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 23:52:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:52:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:52:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:52:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:52:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 23:52:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:52:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-25 23:52:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-25 23:52:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-25 23:52:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-25 23:52:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-25 23:52:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-25 23:52:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:52:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-25 23:52:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-25 23:52:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 23:52:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 23:52:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-25 23:52:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-25 23:52:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:52:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 23:52:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-25 23:52:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-25 23:52:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:52:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:52:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:52:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:52:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-11-25 23:52:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-11-25 23:52:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-25 23:52:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-25 23:52:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-11-25 23:52:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-11-25 23:52:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:52:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 23:52:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:52:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:52:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:52:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 23:52:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-25 23:52:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-25 23:52:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-25 23:52:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:52:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 23:52:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:52:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:52:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:52:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:52:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:52:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:52:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 23:52:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-11-25 23:52:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-11-25 23:52:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:52:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:52:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-11-25 23:52:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-11-25 23:52:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:52:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-11-25 23:52:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-11-25 23:52:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-25 23:52:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-11-25 23:52:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-11-25 23:52:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:52:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:52:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:52:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 23:52:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-11-25 23:52:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-11-25 23:52:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-25 23:52:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-25 23:52:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:52:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-11-25 23:52:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-11-25 23:52:29,586 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:52:29,591 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:52:30,326 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:52:46,495 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:52:48,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:52:48,218 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 23:52:48,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:52:48 BoogieIcfgContainer [2022-11-25 23:52:48,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:52:48,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:52:48,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:52:48,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:52:48,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:52:22" (1/3) ... [2022-11-25 23:52:48,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b5f3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:52:48, skipping insertion in model container [2022-11-25 23:52:48,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:27" (2/3) ... [2022-11-25 23:52:48,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b5f3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:52:48, skipping insertion in model container [2022-11-25 23:52:48,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:52:48" (3/3) ... [2022-11-25 23:52:48,238 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-25 23:52:48,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:52:48,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-25 23:52:48,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:52:48,392 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;@3ba78a17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:52:48,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-25 23:52:48,405 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) [2022-11-25 23:52:48,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 23:52:48,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:48,417 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] [2022-11-25 23:52:48,417 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)] === [2022-11-25 23:52:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:48,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1338110076, now seen corresponding path program 1 times [2022-11-25 23:52:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:48,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076055419] [2022-11-25 23:52:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:48,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:52:49,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:49,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076055419] [2022-11-25 23:52:49,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076055419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:49,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:49,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:49,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350533054] [2022-11-25 23:52:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:49,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:49,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:49,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:49,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:52:49,579 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) [2022-11-25 23:52:52,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:52:56,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:52:59,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:00,667 INFO L93 Difference]: Finished difference Result 3611 states and 5186 transitions. [2022-11-25 23:53:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:00,670 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 [2022-11-25 23:53:00,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:00,705 INFO L225 Difference]: With dead ends: 3611 [2022-11-25 23:53:00,706 INFO L226 Difference]: Without dead ends: 2345 [2022-11-25 23:53:00,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:00,724 INFO L413 NwaCegarLoop]: 1994 mSDtfsCounter, 1481 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 5420 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:00,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 5420 Invalid, 877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 873 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-25 23:53:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2022-11-25 23:53:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2170. [2022-11-25 23:53:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 1289 states have (on average 1.2878200155159039) internal successors, (1660), 1369 states have internal predecessors, (1660), 656 states have call successors, (656), 192 states have call predecessors, (656), 191 states have return successors, (655), 645 states have call predecessors, (655), 654 states have call successors, (655) [2022-11-25 23:53:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2971 transitions. [2022-11-25 23:53:01,020 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2971 transitions. Word has length 38 [2022-11-25 23:53:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:01,021 INFO L495 AbstractCegarLoop]: Abstraction has 2170 states and 2971 transitions. [2022-11-25 23:53:01,021 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) [2022-11-25 23:53:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2971 transitions. [2022-11-25 23:53:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 23:53:01,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:01,025 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] [2022-11-25 23:53:01,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:53:01,026 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)] === [2022-11-25 23:53:01,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash 749012634, now seen corresponding path program 1 times [2022-11-25 23:53:01,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:01,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417790271] [2022-11-25 23:53:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:53:01,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:01,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417790271] [2022-11-25 23:53:01,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417790271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:01,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:01,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:01,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454246573] [2022-11-25 23:53:01,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:01,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:01,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:01,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:01,616 INFO L87 Difference]: Start difference. First operand 2170 states and 2971 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) [2022-11-25 23:53:03,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:06,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:09,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:12,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:13,636 INFO L93 Difference]: Finished difference Result 4206 states and 5780 transitions. [2022-11-25 23:53:13,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:13,637 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 [2022-11-25 23:53:13,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:13,672 INFO L225 Difference]: With dead ends: 4206 [2022-11-25 23:53:13,673 INFO L226 Difference]: Without dead ends: 4204 [2022-11-25 23:53:13,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:13,678 INFO L413 NwaCegarLoop]: 1787 mSDtfsCounter, 1575 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:13,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 4992 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 768 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-25 23:53:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-11-25 23:53:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4017. [2022-11-25 23:53:13,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 2395 states have (on average 1.2914405010438412) internal successors, (3093), 2526 states have internal predecessors, (3093), 1235 states have call successors, (1235), 354 states have call predecessors, (1235), 353 states have return successors, (1252), 1206 states have call predecessors, (1252), 1233 states have call successors, (1252) [2022-11-25 23:53:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 5580 transitions. [2022-11-25 23:53:14,016 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 5580 transitions. Word has length 43 [2022-11-25 23:53:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:14,017 INFO L495 AbstractCegarLoop]: Abstraction has 4017 states and 5580 transitions. [2022-11-25 23:53:14,017 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) [2022-11-25 23:53:14,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 5580 transitions. [2022-11-25 23:53:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 23:53:14,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:14,029 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] [2022-11-25 23:53:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:53:14,030 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)] === [2022-11-25 23:53:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:14,042 INFO L85 PathProgramCache]: Analyzing trace with hash -707052296, now seen corresponding path program 1 times [2022-11-25 23:53:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:14,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631489983] [2022-11-25 23:53:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:53:14,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:14,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631489983] [2022-11-25 23:53:14,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631489983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:14,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:14,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:14,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762084728] [2022-11-25 23:53:14,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:14,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:14,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:14,611 INFO L87 Difference]: Start difference. First operand 4017 states and 5580 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) [2022-11-25 23:53:17,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:21,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:25,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:27,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:29,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:30,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:30,111 INFO L93 Difference]: Finished difference Result 5984 states and 8273 transitions. [2022-11-25 23:53:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:30,112 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 [2022-11-25 23:53:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:30,147 INFO L225 Difference]: With dead ends: 5984 [2022-11-25 23:53:30,147 INFO L226 Difference]: Without dead ends: 5982 [2022-11-25 23:53:30,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:30,152 INFO L413 NwaCegarLoop]: 1984 mSDtfsCounter, 1467 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:30,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 5378 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 873 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2022-11-25 23:53:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2022-11-25 23:53:30,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 5818. [2022-11-25 23:53:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 3462 states have (on average 1.2882726747544773) internal successors, (4460), 3641 states have internal predecessors, (4460), 1803 states have call successors, (1803), 520 states have call predecessors, (1803), 519 states have return successors, (1838), 1758 states have call predecessors, (1838), 1801 states have call successors, (1838) [2022-11-25 23:53:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8101 transitions. [2022-11-25 23:53:30,487 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8101 transitions. Word has length 48 [2022-11-25 23:53:30,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:30,488 INFO L495 AbstractCegarLoop]: Abstraction has 5818 states and 8101 transitions. [2022-11-25 23:53:30,488 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) [2022-11-25 23:53:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8101 transitions. [2022-11-25 23:53:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 23:53:30,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:30,492 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] [2022-11-25 23:53:30,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:53:30,493 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)] === [2022-11-25 23:53:30,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:30,493 INFO L85 PathProgramCache]: Analyzing trace with hash -332909940, now seen corresponding path program 1 times [2022-11-25 23:53:30,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:30,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758984244] [2022-11-25 23:53:30,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:30,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:53:30,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:30,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758984244] [2022-11-25 23:53:30,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758984244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:30,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:30,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:30,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764996549] [2022-11-25 23:53:30,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:30,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:30,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:30,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:30,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:30,876 INFO L87 Difference]: Start difference. First operand 5818 states and 8101 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) [2022-11-25 23:53:33,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:37,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:41,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:42,132 INFO L93 Difference]: Finished difference Result 5997 states and 8289 transitions. [2022-11-25 23:53:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:42,139 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 [2022-11-25 23:53:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:42,257 INFO L225 Difference]: With dead ends: 5997 [2022-11-25 23:53:42,257 INFO L226 Difference]: Without dead ends: 5995 [2022-11-25 23:53:42,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:42,263 INFO L413 NwaCegarLoop]: 1979 mSDtfsCounter, 1459 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 5376 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:42,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 5376 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-25 23:53:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2022-11-25 23:53:42,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 5842. [2022-11-25 23:53:42,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 3474 states have (on average 1.2875647668393781) internal successors, (4473), 3653 states have internal predecessors, (4473), 1811 states have call successors, (1811), 524 states have call predecessors, (1811), 523 states have return successors, (1846), 1766 states have call predecessors, (1846), 1809 states have call successors, (1846) [2022-11-25 23:53:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 8130 transitions. [2022-11-25 23:53:42,681 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 8130 transitions. Word has length 53 [2022-11-25 23:53:42,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:42,683 INFO L495 AbstractCegarLoop]: Abstraction has 5842 states and 8130 transitions. [2022-11-25 23:53:42,684 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) [2022-11-25 23:53:42,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 8130 transitions. [2022-11-25 23:53:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 23:53:42,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:42,686 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] [2022-11-25 23:53:42,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:53:42,687 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)] === [2022-11-25 23:53:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:42,687 INFO L85 PathProgramCache]: Analyzing trace with hash -807591760, now seen corresponding path program 1 times [2022-11-25 23:53:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:42,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367318744] [2022-11-25 23:53:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:42,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:53:43,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367318744] [2022-11-25 23:53:43,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367318744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:43,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:43,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204726987] [2022-11-25 23:53:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:43,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:43,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:43,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:43,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:43,084 INFO L87 Difference]: Start difference. First operand 5842 states and 8130 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) [2022-11-25 23:53:45,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:49,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:53,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:54,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:58,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:53:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:58,876 INFO L93 Difference]: Finished difference Result 6111 states and 8437 transitions. [2022-11-25 23:53:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:58,877 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 [2022-11-25 23:53:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:58,917 INFO L225 Difference]: With dead ends: 6111 [2022-11-25 23:53:58,917 INFO L226 Difference]: Without dead ends: 6109 [2022-11-25 23:53:58,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:58,922 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 1464 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:58,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 5388 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 874 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2022-11-25 23:53:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-11-25 23:53:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 5965. [2022-11-25 23:53:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 3545 states have (on average 1.2860366713681242) internal successors, (4559), 3727 states have internal predecessors, (4559), 1847 states have call successors, (1847), 540 states have call predecessors, (1847), 539 states have return successors, (1882), 1801 states have call predecessors, (1882), 1845 states have call successors, (1882) [2022-11-25 23:53:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 8288 transitions. [2022-11-25 23:53:59,378 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 8288 transitions. Word has length 58 [2022-11-25 23:53:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:59,381 INFO L495 AbstractCegarLoop]: Abstraction has 5965 states and 8288 transitions. [2022-11-25 23:53:59,381 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) [2022-11-25 23:53:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 8288 transitions. [2022-11-25 23:53:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 23:53:59,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:59,384 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] [2022-11-25 23:53:59,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:53:59,384 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)] === [2022-11-25 23:53:59,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash -479904184, now seen corresponding path program 1 times [2022-11-25 23:53:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:59,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83275441] [2022-11-25 23:53:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:53:59,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:59,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83275441] [2022-11-25 23:53:59,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83275441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:59,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:59,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:53:59,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710051879] [2022-11-25 23:53:59,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:59,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:59,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:59,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:59,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:59,820 INFO L87 Difference]: Start difference. First operand 5965 states and 8288 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) [2022-11-25 23:54:02,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:04,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:07,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:10,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:11,087 INFO L93 Difference]: Finished difference Result 6144 states and 8526 transitions. [2022-11-25 23:54:11,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:54:11,087 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 [2022-11-25 23:54:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:11,123 INFO L225 Difference]: With dead ends: 6144 [2022-11-25 23:54:11,123 INFO L226 Difference]: Without dead ends: 6142 [2022-11-25 23:54:11,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:54:11,128 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 1671 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:11,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 3185 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-25 23:54:11,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2022-11-25 23:54:11,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 6138. [2022-11-25 23:54:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 3648 states have (on average 1.2850877192982457) internal successors, (4688), 3837 states have internal predecessors, (4688), 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) [2022-11-25 23:54:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 8520 transitions. [2022-11-25 23:54:11,613 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 8520 transitions. Word has length 63 [2022-11-25 23:54:11,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:11,614 INFO L495 AbstractCegarLoop]: Abstraction has 6138 states and 8520 transitions. [2022-11-25 23:54:11,614 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) [2022-11-25 23:54:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 8520 transitions. [2022-11-25 23:54:11,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 23:54:11,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:11,615 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] [2022-11-25 23:54:11,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:54:11,616 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)] === [2022-11-25 23:54:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash -189638228, now seen corresponding path program 1 times [2022-11-25 23:54:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:11,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166262100] [2022-11-25 23:54:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:54:11,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:11,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166262100] [2022-11-25 23:54:11,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166262100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:54:11,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:54:11,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:54:11,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108815238] [2022-11-25 23:54:11,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:54:11,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:54:11,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:54:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:54:11,970 INFO L87 Difference]: Start difference. First operand 6138 states and 8520 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) [2022-11-25 23:54:14,046 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 [] [2022-11-25 23:54:16,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:19,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:22,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:24,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:24,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:24,375 INFO L93 Difference]: Finished difference Result 6257 states and 8673 transitions. [2022-11-25 23:54:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:54:24,376 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 [2022-11-25 23:54:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:24,409 INFO L225 Difference]: With dead ends: 6257 [2022-11-25 23:54:24,409 INFO L226 Difference]: Without dead ends: 6255 [2022-11-25 23:54:24,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:54:24,414 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 1676 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:24,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 3185 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-25 23:54:24,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2022-11-25 23:54:24,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6136. [2022-11-25 23:54:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 3647 states have (on average 1.2848916918014808) internal successors, (4686), 3835 states have internal predecessors, (4686), 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) [2022-11-25 23:54:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 8518 transitions. [2022-11-25 23:54:24,875 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 8518 transitions. Word has length 68 [2022-11-25 23:54:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:24,876 INFO L495 AbstractCegarLoop]: Abstraction has 6136 states and 8518 transitions. [2022-11-25 23:54:24,876 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) [2022-11-25 23:54:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 8518 transitions. [2022-11-25 23:54:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 23:54:24,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:24,880 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] [2022-11-25 23:54:24,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:54:24,881 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)] === [2022-11-25 23:54:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:24,881 INFO L85 PathProgramCache]: Analyzing trace with hash 877812934, now seen corresponding path program 1 times [2022-11-25 23:54:24,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:24,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465222843] [2022-11-25 23:54:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:24,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:54:25,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:25,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465222843] [2022-11-25 23:54:25,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465222843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:54:25,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:54:25,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:54:25,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494667551] [2022-11-25 23:54:25,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:54:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:54:25,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:25,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:54:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:54:25,291 INFO L87 Difference]: Start difference. First operand 6136 states and 8518 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) [2022-11-25 23:54:27,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:29,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:32,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:35,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:37,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:38,718 INFO L93 Difference]: Finished difference Result 6138 states and 8520 transitions. [2022-11-25 23:54:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:54:38,718 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 [2022-11-25 23:54:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:38,747 INFO L225 Difference]: With dead ends: 6138 [2022-11-25 23:54:38,748 INFO L226 Difference]: Without dead ends: 6136 [2022-11-25 23:54:38,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:54:38,753 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 1677 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:38,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 3177 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-25 23:54:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-11-25 23:54:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 6134. [2022-11-25 23:54:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 3646 states have (on average 1.2846955567745475) internal successors, (4684), 3833 states have internal predecessors, (4684), 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) [2022-11-25 23:54:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 8516 transitions. [2022-11-25 23:54:39,257 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 8516 transitions. Word has length 73 [2022-11-25 23:54:39,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:39,258 INFO L495 AbstractCegarLoop]: Abstraction has 6134 states and 8516 transitions. [2022-11-25 23:54:39,258 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) [2022-11-25 23:54:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 8516 transitions. [2022-11-25 23:54:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 23:54:39,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:39,260 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] [2022-11-25 23:54:39,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:54:39,260 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)] === [2022-11-25 23:54:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1408313959, now seen corresponding path program 1 times [2022-11-25 23:54:39,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378745538] [2022-11-25 23:54:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:39,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 23:54:40,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378745538] [2022-11-25 23:54:40,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378745538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:54:40,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:54:40,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:54:40,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751928839] [2022-11-25 23:54:40,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:54:40,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:54:40,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:40,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:54:40,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:54:40,614 INFO L87 Difference]: Start difference. First operand 6134 states and 8516 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) [2022-11-25 23:54:44,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:46,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:48,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:50,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:55,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:54:58,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:01,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:02,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:02,180 INFO L93 Difference]: Finished difference Result 6137 states and 8519 transitions. [2022-11-25 23:55:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:55:02,180 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 [2022-11-25 23:55:02,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:02,262 INFO L225 Difference]: With dead ends: 6137 [2022-11-25 23:55:02,262 INFO L226 Difference]: Without dead ends: 6135 [2022-11-25 23:55:02,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:55:02,270 INFO L413 NwaCegarLoop]: 1491 mSDtfsCounter, 1663 mSDsluCounter, 3924 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:02,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 5415 Invalid, 1792 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1787 Invalid, 5 Unknown, 0 Unchecked, 21.0s Time] [2022-11-25 23:55:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2022-11-25 23:55:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6132. [2022-11-25 23:55:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6132 states, 3645 states have (on average 1.283127572016461) internal successors, (4677), 3831 states have internal predecessors, (4677), 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) [2022-11-25 23:55:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 8509 transitions. [2022-11-25 23:55:02,796 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 8509 transitions. Word has length 88 [2022-11-25 23:55:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:02,796 INFO L495 AbstractCegarLoop]: Abstraction has 6132 states and 8509 transitions. [2022-11-25 23:55:02,797 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) [2022-11-25 23:55:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 8509 transitions. [2022-11-25 23:55:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 23:55:02,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:02,798 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] [2022-11-25 23:55:02,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:55:02,799 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)] === [2022-11-25 23:55:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:02,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1764774953, now seen corresponding path program 1 times [2022-11-25 23:55:02,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:02,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39716812] [2022-11-25 23:55:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:02,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:55:03,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:03,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39716812] [2022-11-25 23:55:03,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39716812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:03,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:03,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:55:03,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914928271] [2022-11-25 23:55:03,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:55:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:55:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:55:03,142 INFO L87 Difference]: Start difference. First operand 6132 states and 8509 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) [2022-11-25 23:55:05,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:09,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:13,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:16,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:18,076 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 [] [2022-11-25 23:55:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:18,214 INFO L93 Difference]: Finished difference Result 6134 states and 8511 transitions. [2022-11-25 23:55:18,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:55:18,214 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 [2022-11-25 23:55:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:18,239 INFO L225 Difference]: With dead ends: 6134 [2022-11-25 23:55:18,240 INFO L226 Difference]: Without dead ends: 6132 [2022-11-25 23:55:18,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:18,244 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 1667 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:18,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 3173 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2022-11-25 23:55:18,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2022-11-25 23:55:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 6130. [2022-11-25 23:55:18,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6130 states, 3644 states have (on average 1.2829308452250274) internal successors, (4675), 3829 states have internal predecessors, (4675), 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) [2022-11-25 23:55:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6130 states to 6130 states and 8507 transitions. [2022-11-25 23:55:18,806 INFO L78 Accepts]: Start accepts. Automaton has 6130 states and 8507 transitions. Word has length 75 [2022-11-25 23:55:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:18,806 INFO L495 AbstractCegarLoop]: Abstraction has 6130 states and 8507 transitions. [2022-11-25 23:55:18,807 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) [2022-11-25 23:55:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states and 8507 transitions. [2022-11-25 23:55:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-25 23:55:18,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:18,816 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] [2022-11-25 23:55:18,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:55:18,817 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)] === [2022-11-25 23:55:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1972963762, now seen corresponding path program 1 times [2022-11-25 23:55:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:18,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159247536] [2022-11-25 23:55:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 23:55:19,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:19,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159247536] [2022-11-25 23:55:19,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159247536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:19,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:19,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:55:19,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234722524] [2022-11-25 23:55:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:19,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:55:19,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:19,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:55:19,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:55:19,151 INFO L87 Difference]: Start difference. First operand 6130 states and 8507 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) [2022-11-25 23:55:23,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:26,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:26,618 INFO L93 Difference]: Finished difference Result 12228 states and 17052 transitions. [2022-11-25 23:55:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:55:26,619 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 [2022-11-25 23:55:26,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:26,651 INFO L225 Difference]: With dead ends: 12228 [2022-11-25 23:55:26,651 INFO L226 Difference]: Without dead ends: 6119 [2022-11-25 23:55:26,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:55:26,682 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 1648 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s 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, 6.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:26,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1677 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-11-25 23:55:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2022-11-25 23:55:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 6116. [2022-11-25 23:55:27,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 3631 states have (on average 1.2806389424400992) internal successors, (4650), 3815 states have internal predecessors, (4650), 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) [2022-11-25 23:55:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 8482 transitions. [2022-11-25 23:55:27,484 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 8482 transitions. Word has length 91 [2022-11-25 23:55:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:27,485 INFO L495 AbstractCegarLoop]: Abstraction has 6116 states and 8482 transitions. [2022-11-25 23:55:27,485 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) [2022-11-25 23:55:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 8482 transitions. [2022-11-25 23:55:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:55:27,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:27,489 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] [2022-11-25 23:55:27,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:55:27,490 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)] === [2022-11-25 23:55:27,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1849249697, now seen corresponding path program 1 times [2022-11-25 23:55:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:27,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677823092] [2022-11-25 23:55:27,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:27,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:55:27,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:27,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677823092] [2022-11-25 23:55:27,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677823092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:27,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:27,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:55:27,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841233182] [2022-11-25 23:55:27,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:27,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:55:27,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:27,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:55:27,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:55:27,836 INFO L87 Difference]: Start difference. First operand 6116 states and 8482 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) [2022-11-25 23:55:30,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:34,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:38,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:39,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:39,767 INFO L93 Difference]: Finished difference Result 6249 states and 8620 transitions. [2022-11-25 23:55:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:55:39,768 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 [2022-11-25 23:55:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:39,796 INFO L225 Difference]: With dead ends: 6249 [2022-11-25 23:55:39,796 INFO L226 Difference]: Without dead ends: 6247 [2022-11-25 23:55:39,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:39,802 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 1435 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:39,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 5331 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-25 23:55:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2022-11-25 23:55:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6142. [2022-11-25 23:55:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6142 states, 3645 states have (on average 1.2795610425240054) internal successors, (4664), 3829 states have internal predecessors, (4664), 1906 states have call successors, (1906), 563 states have call predecessors, (1906), 563 states have return successors, (1942), 1857 states have call predecessors, (1942), 1904 states have call successors, (1942) [2022-11-25 23:55:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 8512 transitions. [2022-11-25 23:55:40,453 INFO L78 Accepts]: Start accepts. Automaton has 6142 states and 8512 transitions. Word has length 80 [2022-11-25 23:55:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:40,455 INFO L495 AbstractCegarLoop]: Abstraction has 6142 states and 8512 transitions. [2022-11-25 23:55:40,456 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) [2022-11-25 23:55:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6142 states and 8512 transitions. [2022-11-25 23:55:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:55:40,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:40,458 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] [2022-11-25 23:55:40,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:55:40,458 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)] === [2022-11-25 23:55:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:40,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1116925288, now seen corresponding path program 1 times [2022-11-25 23:55:40,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:40,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003567355] [2022-11-25 23:55:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:40,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:55:40,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003567355] [2022-11-25 23:55:40,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003567355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:40,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:40,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:55:40,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95467249] [2022-11-25 23:55:40,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:40,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:55:40,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:55:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:55:40,785 INFO L87 Difference]: Start difference. First operand 6142 states and 8512 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) [2022-11-25 23:55:43,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:47,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:51,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:52,126 INFO L93 Difference]: Finished difference Result 6247 states and 8618 transitions. [2022-11-25 23:55:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:55:52,127 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 [2022-11-25 23:55:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:52,157 INFO L225 Difference]: With dead ends: 6247 [2022-11-25 23:55:52,157 INFO L226 Difference]: Without dead ends: 6245 [2022-11-25 23:55:52,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:52,162 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 1432 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:52,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 5331 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-25 23:55:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2022-11-25 23:55:52,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 6148. [2022-11-25 23:55:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 3648 states have (on average 1.2793311403508771) internal successors, (4667), 3832 states have internal predecessors, (4667), 1908 states have call successors, (1908), 564 states have call predecessors, (1908), 564 states have return successors, (1944), 1859 states have call predecessors, (1944), 1906 states have call successors, (1944) [2022-11-25 23:55:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8519 transitions. [2022-11-25 23:55:52,868 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8519 transitions. Word has length 85 [2022-11-25 23:55:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:52,869 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 8519 transitions. [2022-11-25 23:55:52,869 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) [2022-11-25 23:55:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8519 transitions. [2022-11-25 23:55:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 23:55:52,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:52,875 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] [2022-11-25 23:55:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:55:52,875 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)] === [2022-11-25 23:55:52,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1760395765, now seen corresponding path program 1 times [2022-11-25 23:55:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:52,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589874682] [2022-11-25 23:55:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:52,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-25 23:55:53,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:53,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589874682] [2022-11-25 23:55:53,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589874682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:53,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:53,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:55:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911789828] [2022-11-25 23:55:53,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:53,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:55:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:55:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:53,552 INFO L87 Difference]: Start difference. First operand 6148 states and 8519 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) [2022-11-25 23:55:56,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:01,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:06,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:07,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:07,365 INFO L93 Difference]: Finished difference Result 6725 states and 9122 transitions. [2022-11-25 23:56:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:56:07,366 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 [2022-11-25 23:56:07,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:07,389 INFO L225 Difference]: With dead ends: 6725 [2022-11-25 23:56:07,389 INFO L226 Difference]: Without dead ends: 6723 [2022-11-25 23:56:07,392 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 [2022-11-25 23:56:07,393 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 1382 mSDsluCounter, 5271 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:07,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 7223 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1171 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-25 23:56:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6723 states. [2022-11-25 23:56:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6723 to 6607. [2022-11-25 23:56:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 3899 states have (on average 1.2692998204667865) internal successors, (4949), 4092 states have internal predecessors, (4949), 2010 states have call successors, (2010), 674 states have call predecessors, (2010), 670 states have return successors, (2046), 1948 states have call predecessors, (2046), 2008 states have call successors, (2046) [2022-11-25 23:56:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9005 transitions. [2022-11-25 23:56:08,054 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9005 transitions. Word has length 117 [2022-11-25 23:56:08,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:08,054 INFO L495 AbstractCegarLoop]: Abstraction has 6607 states and 9005 transitions. [2022-11-25 23:56:08,055 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) [2022-11-25 23:56:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9005 transitions. [2022-11-25 23:56:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-25 23:56:08,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:08,057 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] [2022-11-25 23:56:08,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:56:08,058 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)] === [2022-11-25 23:56:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1880624519, now seen corresponding path program 1 times [2022-11-25 23:56:08,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:08,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480468742] [2022-11-25 23:56:08,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:08,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:56:08,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:08,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480468742] [2022-11-25 23:56:08,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480468742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:08,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:08,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:56:08,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158499069] [2022-11-25 23:56:08,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:08,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:56:08,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:56:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:56:08,429 INFO L87 Difference]: Start difference. First operand 6607 states and 9005 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) [2022-11-25 23:56:11,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:13,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:16,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:19,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:19,781 INFO L93 Difference]: Finished difference Result 6610 states and 9008 transitions. [2022-11-25 23:56:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:56:19,781 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 [2022-11-25 23:56:19,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:19,802 INFO L225 Difference]: With dead ends: 6610 [2022-11-25 23:56:19,802 INFO L226 Difference]: Without dead ends: 6608 [2022-11-25 23:56:19,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:19,807 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1651 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:19,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 3155 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-11-25 23:56:19,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2022-11-25 23:56:20,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 6605. [2022-11-25 23:56:20,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 3898 states have (on average 1.2691123653155465) internal successors, (4947), 4090 states have internal predecessors, (4947), 2010 states have call successors, (2010), 674 states have call predecessors, (2010), 670 states have return successors, (2046), 1948 states have call predecessors, (2046), 2008 states have call successors, (2046) [2022-11-25 23:56:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 9003 transitions. [2022-11-25 23:56:20,425 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 9003 transitions. Word has length 90 [2022-11-25 23:56:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:20,426 INFO L495 AbstractCegarLoop]: Abstraction has 6605 states and 9003 transitions. [2022-11-25 23:56:20,426 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) [2022-11-25 23:56:20,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 9003 transitions. [2022-11-25 23:56:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 23:56:20,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:20,429 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] [2022-11-25 23:56:20,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:56:20,430 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)] === [2022-11-25 23:56:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1429890285, now seen corresponding path program 1 times [2022-11-25 23:56:20,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:20,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993235178] [2022-11-25 23:56:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:56:20,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:20,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993235178] [2022-11-25 23:56:20,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993235178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:20,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:20,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:56:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046980349] [2022-11-25 23:56:20,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:56:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:20,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:56:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:56:20,771 INFO L87 Difference]: Start difference. First operand 6605 states and 9003 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) [2022-11-25 23:56:24,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:27,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:31,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:31,606 INFO L93 Difference]: Finished difference Result 6608 states and 9006 transitions. [2022-11-25 23:56:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:56:31,608 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 [2022-11-25 23:56:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:31,631 INFO L225 Difference]: With dead ends: 6608 [2022-11-25 23:56:31,632 INFO L226 Difference]: Without dead ends: 6606 [2022-11-25 23:56:31,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:31,637 INFO L413 NwaCegarLoop]: 1479 mSDtfsCounter, 1648 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:31,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 3151 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-11-25 23:56:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6606 states. [2022-11-25 23:56:32,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6606 to 6603. [2022-11-25 23:56:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 3897 states have (on average 1.268924813959456) internal successors, (4945), 4088 states have internal predecessors, (4945), 2010 states have call successors, (2010), 674 states have call predecessors, (2010), 670 states have return successors, (2046), 1948 states have call predecessors, (2046), 2008 states have call successors, (2046) [2022-11-25 23:56:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 9001 transitions. [2022-11-25 23:56:32,189 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 9001 transitions. Word has length 95 [2022-11-25 23:56:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:32,189 INFO L495 AbstractCegarLoop]: Abstraction has 6603 states and 9001 transitions. [2022-11-25 23:56:32,190 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) [2022-11-25 23:56:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 9001 transitions. [2022-11-25 23:56:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 23:56:32,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:32,192 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] [2022-11-25 23:56:32,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:56:32,192 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)] === [2022-11-25 23:56:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2043067935, now seen corresponding path program 1 times [2022-11-25 23:56:32,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:32,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610923121] [2022-11-25 23:56:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:32,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:32,941 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-25 23:56:32,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:32,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610923121] [2022-11-25 23:56:32,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610923121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:32,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:32,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:56:32,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005577356] [2022-11-25 23:56:32,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:32,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:56:32,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:32,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:56:32,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:32,944 INFO L87 Difference]: Start difference. First operand 6603 states and 9001 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) [2022-11-25 23:56:36,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:40,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:43,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:45,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:47,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:49,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:51,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:52,033 INFO L93 Difference]: Finished difference Result 8280 states and 11178 transitions. [2022-11-25 23:56:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:56:52,034 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 [2022-11-25 23:56:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:52,056 INFO L225 Difference]: With dead ends: 8280 [2022-11-25 23:56:52,057 INFO L226 Difference]: Without dead ends: 8278 [2022-11-25 23:56:52,060 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 [2022-11-25 23:56:52,061 INFO L413 NwaCegarLoop]: 1836 mSDtfsCounter, 1397 mSDsluCounter, 4656 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:52,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 6492 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1121 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2022-11-25 23:56:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2022-11-25 23:56:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 8256. [2022-11-25 23:56:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 4877 states have (on average 1.2663522657371336) internal successors, (6176), 5100 states have internal predecessors, (6176), 2470 states have call successors, (2470), 889 states have call predecessors, (2470), 883 states have return successors, (2508), 2388 states have call predecessors, (2508), 2468 states have call successors, (2508) [2022-11-25 23:56:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11154 transitions. [2022-11-25 23:56:52,738 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11154 transitions. Word has length 128 [2022-11-25 23:56:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:52,739 INFO L495 AbstractCegarLoop]: Abstraction has 8256 states and 11154 transitions. [2022-11-25 23:56:52,739 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) [2022-11-25 23:56:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11154 transitions. [2022-11-25 23:56:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 23:56:52,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:52,742 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] [2022-11-25 23:56:52,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:56:52,743 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)] === [2022-11-25 23:56:52,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash 144208892, now seen corresponding path program 1 times [2022-11-25 23:56:52,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:52,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501532734] [2022-11-25 23:56:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-25 23:56:53,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:53,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501532734] [2022-11-25 23:56:53,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501532734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:53,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:53,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:56:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791291535] [2022-11-25 23:56:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:53,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:56:53,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:56:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:53,486 INFO L87 Difference]: Start difference. First operand 8256 states and 11154 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) [2022-11-25 23:56:57,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:59,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:01,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:06,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:11,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:12,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:14,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:15,084 INFO L93 Difference]: Finished difference Result 8754 states and 11660 transitions. [2022-11-25 23:57:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:15,084 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 [2022-11-25 23:57:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:15,102 INFO L225 Difference]: With dead ends: 8754 [2022-11-25 23:57:15,103 INFO L226 Difference]: Without dead ends: 8752 [2022-11-25 23:57:15,105 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 [2022-11-25 23:57:15,106 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 194 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:15,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 5986 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1094 Invalid, 6 Unknown, 0 Unchecked, 20.8s Time] [2022-11-25 23:57:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8752 states. [2022-11-25 23:57:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8752 to 8625. [2022-11-25 23:57:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8625 states, 5083 states have (on average 1.2600826283690734) internal successors, (6405), 5307 states have internal predecessors, (6405), 2539 states have call successors, (2539), 983 states have call predecessors, (2539), 977 states have return successors, (2577), 2456 states have call predecessors, (2577), 2537 states have call successors, (2577) [2022-11-25 23:57:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8625 states to 8625 states and 11521 transitions. [2022-11-25 23:57:15,965 INFO L78 Accepts]: Start accepts. Automaton has 8625 states and 11521 transitions. Word has length 129 [2022-11-25 23:57:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:15,965 INFO L495 AbstractCegarLoop]: Abstraction has 8625 states and 11521 transitions. [2022-11-25 23:57:15,966 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) [2022-11-25 23:57:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8625 states and 11521 transitions. [2022-11-25 23:57:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-25 23:57:15,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:15,967 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] [2022-11-25 23:57:15,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:57:15,968 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)] === [2022-11-25 23:57:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1460474479, now seen corresponding path program 1 times [2022-11-25 23:57:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138998721] [2022-11-25 23:57:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:15,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:57:16,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138998721] [2022-11-25 23:57:16,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138998721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:16,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:16,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379376007] [2022-11-25 23:57:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:16,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:57:16,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:16,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:57:16,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:57:16,327 INFO L87 Difference]: Start difference. First operand 8625 states and 11521 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) [2022-11-25 23:57:20,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:23,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:25,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:28,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:30,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:31,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:33,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:33,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:33,981 INFO L93 Difference]: Finished difference Result 8627 states and 11523 transitions. [2022-11-25 23:57:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:57:33,983 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 [2022-11-25 23:57:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:34,006 INFO L225 Difference]: With dead ends: 8627 [2022-11-25 23:57:34,006 INFO L226 Difference]: Without dead ends: 8625 [2022-11-25 23:57:34,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:34,010 INFO L413 NwaCegarLoop]: 1479 mSDtfsCounter, 1653 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:34,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 3151 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2022-11-25 23:57:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8625 states. [2022-11-25 23:57:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8625 to 8623. [2022-11-25 23:57:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8623 states, 5082 states have (on average 1.2599370326643053) internal successors, (6403), 5305 states have internal predecessors, (6403), 2539 states have call successors, (2539), 983 states have call predecessors, (2539), 977 states have return successors, (2577), 2456 states have call predecessors, (2577), 2537 states have call successors, (2577) [2022-11-25 23:57:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8623 states to 8623 states and 11519 transitions. [2022-11-25 23:57:34,915 INFO L78 Accepts]: Start accepts. Automaton has 8623 states and 11519 transitions. Word has length 100 [2022-11-25 23:57:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:34,916 INFO L495 AbstractCegarLoop]: Abstraction has 8623 states and 11519 transitions. [2022-11-25 23:57:34,916 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) [2022-11-25 23:57:34,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8623 states and 11519 transitions. [2022-11-25 23:57:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 23:57:34,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:34,920 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] [2022-11-25 23:57:34,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:57:34,920 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)] === [2022-11-25 23:57:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -935248250, now seen corresponding path program 1 times [2022-11-25 23:57:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:34,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324308153] [2022-11-25 23:57:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:34,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 23:57:35,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:35,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324308153] [2022-11-25 23:57:35,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324308153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:35,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:35,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:57:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386367786] [2022-11-25 23:57:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:35,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:35,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:35,908 INFO L87 Difference]: Start difference. First operand 8623 states and 11519 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) [2022-11-25 23:57:39,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:41,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:45,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:49,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:50,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:52,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:57:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:53,267 INFO L93 Difference]: Finished difference Result 9209 states and 12079 transitions. [2022-11-25 23:57:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:57:53,267 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 [2022-11-25 23:57:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:53,297 INFO L225 Difference]: With dead ends: 9209 [2022-11-25 23:57:53,297 INFO L226 Difference]: Without dead ends: 9207 [2022-11-25 23:57:53,301 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 [2022-11-25 23:57:53,302 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 1287 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 4665 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:53,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 4665 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 841 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2022-11-25 23:57:53,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9207 states. [2022-11-25 23:57:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9207 to 9070. [2022-11-25 23:57:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9070 states, 5367 states have (on average 1.2537730575740638) internal successors, (6729), 5590 states have internal predecessors, (6729), 2576 states have call successors, (2576), 1108 states have call predecessors, (2576), 1102 states have return successors, (2614), 2493 states have call predecessors, (2614), 2574 states have call successors, (2614) [2022-11-25 23:57:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9070 states to 9070 states and 11919 transitions. [2022-11-25 23:57:54,033 INFO L78 Accepts]: Start accepts. Automaton has 9070 states and 11919 transitions. Word has length 123 [2022-11-25 23:57:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:54,033 INFO L495 AbstractCegarLoop]: Abstraction has 9070 states and 11919 transitions. [2022-11-25 23:57:54,033 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) [2022-11-25 23:57:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9070 states and 11919 transitions. [2022-11-25 23:57:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 23:57:54,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:54,035 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] [2022-11-25 23:57:54,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:57:54,035 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)] === [2022-11-25 23:57:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:54,036 INFO L85 PathProgramCache]: Analyzing trace with hash -232069892, now seen corresponding path program 1 times [2022-11-25 23:57:54,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:54,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968406539] [2022-11-25 23:57:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:54,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:57:54,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:54,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968406539] [2022-11-25 23:57:54,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968406539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:54,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:54,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757797008] [2022-11-25 23:57:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:54,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:57:54,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:57:54,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:57:54,436 INFO L87 Difference]: Start difference. First operand 9070 states and 11919 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) [2022-11-25 23:57:57,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:01,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:04,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:07,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:09,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:12,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:14,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:14,410 INFO L93 Difference]: Finished difference Result 9289 states and 12174 transitions. [2022-11-25 23:58:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:14,410 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 [2022-11-25 23:58:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:14,432 INFO L225 Difference]: With dead ends: 9289 [2022-11-25 23:58:14,433 INFO L226 Difference]: Without dead ends: 9287 [2022-11-25 23:58:14,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:14,436 INFO L413 NwaCegarLoop]: 2029 mSDtfsCounter, 1408 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:14,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 5455 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2022-11-25 23:58:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9287 states. [2022-11-25 23:58:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9287 to 9098. [2022-11-25 23:58:15,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 5381 states have (on average 1.2531128043114663) internal successors, (6743), 5604 states have internal predecessors, (6743), 2584 states have call successors, (2584), 1114 states have call predecessors, (2584), 1108 states have return successors, (2622), 2501 states have call predecessors, (2622), 2582 states have call successors, (2622) [2022-11-25 23:58:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 11949 transitions. [2022-11-25 23:58:15,451 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 11949 transitions. Word has length 105 [2022-11-25 23:58:15,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:15,451 INFO L495 AbstractCegarLoop]: Abstraction has 9098 states and 11949 transitions. [2022-11-25 23:58:15,451 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) [2022-11-25 23:58:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 11949 transitions. [2022-11-25 23:58:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 23:58:15,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:15,455 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] [2022-11-25 23:58:15,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:58:15,455 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)] === [2022-11-25 23:58:15,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -908782829, now seen corresponding path program 1 times [2022-11-25 23:58:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:15,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115224415] [2022-11-25 23:58:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:15,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-25 23:58:15,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115224415] [2022-11-25 23:58:15,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115224415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:15,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:15,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745355937] [2022-11-25 23:58:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:15,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:15,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:15,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:15,991 INFO L87 Difference]: Start difference. First operand 9098 states and 11949 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) [2022-11-25 23:58:19,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:23,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:28,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:28,689 INFO L93 Difference]: Finished difference Result 9146 states and 11993 transitions. [2022-11-25 23:58:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:28,689 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 [2022-11-25 23:58:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:28,711 INFO L225 Difference]: With dead ends: 9146 [2022-11-25 23:58:28,711 INFO L226 Difference]: Without dead ends: 9144 [2022-11-25 23:58:28,714 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 [2022-11-25 23:58:28,715 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 161 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 5951 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 5951 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-25 23:58:28,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-11-25 23:58:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9134. [2022-11-25 23:58:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9134 states, 5401 states have (on average 1.2503240140714682) internal successors, (6753), 5624 states have internal predecessors, (6753), 2592 states have call successors, (2592), 1122 states have call predecessors, (2592), 1116 states have return successors, (2630), 2509 states have call predecessors, (2630), 2590 states have call successors, (2630) [2022-11-25 23:58:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9134 states to 9134 states and 11975 transitions. [2022-11-25 23:58:29,572 INFO L78 Accepts]: Start accepts. Automaton has 9134 states and 11975 transitions. Word has length 138 [2022-11-25 23:58:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:29,573 INFO L495 AbstractCegarLoop]: Abstraction has 9134 states and 11975 transitions. [2022-11-25 23:58:29,573 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) [2022-11-25 23:58:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 9134 states and 11975 transitions. [2022-11-25 23:58:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:58:29,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:29,576 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] [2022-11-25 23:58:29,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:58:29,576 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)] === [2022-11-25 23:58:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1195950420, now seen corresponding path program 1 times [2022-11-25 23:58:29,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:29,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008867569] [2022-11-25 23:58:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:30,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:30,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008867569] [2022-11-25 23:58:30,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008867569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:30,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:30,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392069906] [2022-11-25 23:58:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:30,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:30,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:30,116 INFO L87 Difference]: Start difference. First operand 9134 states and 11975 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) [2022-11-25 23:58:33,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:37,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:42,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:43,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:43,826 INFO L93 Difference]: Finished difference Result 9199 states and 12036 transitions. [2022-11-25 23:58:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:43,827 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 [2022-11-25 23:58:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:43,846 INFO L225 Difference]: With dead ends: 9199 [2022-11-25 23:58:43,847 INFO L226 Difference]: Without dead ends: 9197 [2022-11-25 23:58:43,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:43,850 INFO L413 NwaCegarLoop]: 2031 mSDtfsCounter, 1417 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 5459 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2022-11-25 23:58:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-11-25 23:58:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9140. [2022-11-25 23:58:44,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9140 states, 5404 states have (on average 1.2501850481125092) internal successors, (6756), 5627 states have internal predecessors, (6756), 2594 states have call successors, (2594), 1123 states have call predecessors, (2594), 1117 states have return successors, (2632), 2511 states have call predecessors, (2632), 2592 states have call successors, (2632) [2022-11-25 23:58:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9140 states to 9140 states and 11982 transitions. [2022-11-25 23:58:44,717 INFO L78 Accepts]: Start accepts. Automaton has 9140 states and 11982 transitions. Word has length 110 [2022-11-25 23:58:44,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:44,718 INFO L495 AbstractCegarLoop]: Abstraction has 9140 states and 11982 transitions. [2022-11-25 23:58:44,718 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) [2022-11-25 23:58:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9140 states and 11982 transitions. [2022-11-25 23:58:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 23:58:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:44,722 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] [2022-11-25 23:58:44,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:58:44,722 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)] === [2022-11-25 23:58:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:44,723 INFO L85 PathProgramCache]: Analyzing trace with hash -747814409, now seen corresponding path program 1 times [2022-11-25 23:58:44,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:44,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987996845] [2022-11-25 23:58:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:44,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:45,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:45,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987996845] [2022-11-25 23:58:45,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987996845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:45,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:45,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115811010] [2022-11-25 23:58:45,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:45,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:45,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:45,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:45,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:45,072 INFO L87 Difference]: Start difference. First operand 9140 states and 11982 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) [2022-11-25 23:58:47,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:52,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:56,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:58,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:58,011 INFO L93 Difference]: Finished difference Result 9197 states and 12034 transitions. [2022-11-25 23:58:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:58,012 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 [2022-11-25 23:58:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:58,035 INFO L225 Difference]: With dead ends: 9197 [2022-11-25 23:58:58,035 INFO L226 Difference]: Without dead ends: 9195 [2022-11-25 23:58:58,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:58,038 INFO L413 NwaCegarLoop]: 2031 mSDtfsCounter, 1414 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:58,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 5459 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-11-25 23:58:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9195 states. [2022-11-25 23:58:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9195 to 9146. [2022-11-25 23:58:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9146 states, 5407 states have (on average 1.2500462363602738) internal successors, (6759), 5630 states have internal predecessors, (6759), 2596 states have call successors, (2596), 1124 states have call predecessors, (2596), 1118 states have return successors, (2634), 2513 states have call predecessors, (2634), 2594 states have call successors, (2634) [2022-11-25 23:58:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9146 states to 9146 states and 11989 transitions. [2022-11-25 23:58:58,956 INFO L78 Accepts]: Start accepts. Automaton has 9146 states and 11989 transitions. Word has length 115 [2022-11-25 23:58:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:58,957 INFO L495 AbstractCegarLoop]: Abstraction has 9146 states and 11989 transitions. [2022-11-25 23:58:58,957 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) [2022-11-25 23:58:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9146 states and 11989 transitions. [2022-11-25 23:58:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 23:58:58,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:58,960 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] [2022-11-25 23:58:58,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:58:58,960 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)] === [2022-11-25 23:58:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash 596895059, now seen corresponding path program 1 times [2022-11-25 23:58:58,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:58,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126947347] [2022-11-25 23:58:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:58,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:58:59,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:59,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126947347] [2022-11-25 23:58:59,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126947347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:59,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:59,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:59,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696910466] [2022-11-25 23:58:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:59,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:58:59,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:58:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:58:59,283 INFO L87 Difference]: Start difference. First operand 9146 states and 11989 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) [2022-11-25 23:59:01,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:03,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:06,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:09,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:11,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:14,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:14,440 INFO L93 Difference]: Finished difference Result 9148 states and 11991 transitions. [2022-11-25 23:59:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:14,441 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 [2022-11-25 23:59:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:14,461 INFO L225 Difference]: With dead ends: 9148 [2022-11-25 23:59:14,461 INFO L226 Difference]: Without dead ends: 9146 [2022-11-25 23:59:14,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:14,465 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 1647 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:14,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3147 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-11-25 23:59:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9146 states. [2022-11-25 23:59:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9146 to 9144. [2022-11-25 23:59:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9144 states, 5406 states have (on average 1.2499075101738808) internal successors, (6757), 5628 states have internal predecessors, (6757), 2596 states have call successors, (2596), 1124 states have call predecessors, (2596), 1118 states have return successors, (2634), 2513 states have call predecessors, (2634), 2594 states have call successors, (2634) [2022-11-25 23:59:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 11987 transitions. [2022-11-25 23:59:15,523 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 11987 transitions. Word has length 120 [2022-11-25 23:59:15,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:15,523 INFO L495 AbstractCegarLoop]: Abstraction has 9144 states and 11987 transitions. [2022-11-25 23:59:15,523 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) [2022-11-25 23:59:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 11987 transitions. [2022-11-25 23:59:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 23:59:15,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:15,526 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] [2022-11-25 23:59:15,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:59:15,527 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)] === [2022-11-25 23:59:15,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:15,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1366601889, now seen corresponding path program 1 times [2022-11-25 23:59:15,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:15,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500268717] [2022-11-25 23:59:15,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:15,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:15,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:15,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500268717] [2022-11-25 23:59:15,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500268717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:15,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:15,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748360641] [2022-11-25 23:59:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:15,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:15,870 INFO L87 Difference]: Start difference. First operand 9144 states and 11987 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) [2022-11-25 23:59:18,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:22,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:28,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:30,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:31,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:33,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:34,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:34,216 INFO L93 Difference]: Finished difference Result 9307 states and 12178 transitions. [2022-11-25 23:59:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:34,217 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 [2022-11-25 23:59:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:34,240 INFO L225 Difference]: With dead ends: 9307 [2022-11-25 23:59:34,240 INFO L226 Difference]: Without dead ends: 9305 [2022-11-25 23:59:34,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:34,244 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 1416 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:34,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 5465 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 908 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2022-11-25 23:59:34,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-11-25 23:59:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9156. [2022-11-25 23:59:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9156 states, 5412 states have (on average 1.249630450849963) internal successors, (6763), 5634 states have internal predecessors, (6763), 2600 states have call successors, (2600), 1126 states have call predecessors, (2600), 1120 states have return successors, (2638), 2517 states have call predecessors, (2638), 2598 states have call successors, (2638) [2022-11-25 23:59:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9156 states to 9156 states and 12001 transitions. [2022-11-25 23:59:35,183 INFO L78 Accepts]: Start accepts. Automaton has 9156 states and 12001 transitions. Word has length 125 [2022-11-25 23:59:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:35,184 INFO L495 AbstractCegarLoop]: Abstraction has 9156 states and 12001 transitions. [2022-11-25 23:59:35,184 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) [2022-11-25 23:59:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 9156 states and 12001 transitions. [2022-11-25 23:59:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 23:59:35,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:35,188 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] [2022-11-25 23:59:35,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:59:35,189 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)] === [2022-11-25 23:59:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash -657803578, now seen corresponding path program 1 times [2022-11-25 23:59:35,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:35,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438447947] [2022-11-25 23:59:35,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:35,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:35,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438447947] [2022-11-25 23:59:35,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438447947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:35,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:35,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463997345] [2022-11-25 23:59:35,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:35,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:35,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:35,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:35,681 INFO L87 Difference]: Start difference. First operand 9156 states and 12001 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) [2022-11-25 23:59:38,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:43,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:44,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:48,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:50,073 INFO L93 Difference]: Finished difference Result 9189 states and 12026 transitions. [2022-11-25 23:59:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:59:50,074 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 [2022-11-25 23:59:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:50,101 INFO L225 Difference]: With dead ends: 9189 [2022-11-25 23:59:50,101 INFO L226 Difference]: Without dead ends: 9187 [2022-11-25 23:59:50,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:50,105 INFO L413 NwaCegarLoop]: 2029 mSDtfsCounter, 1405 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:50,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 5453 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-25 23:59:50,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9187 states. [2022-11-25 23:59:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9187 to 9162. [2022-11-25 23:59:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9162 states, 5415 states have (on average 1.2494921514312096) internal successors, (6766), 5637 states have internal predecessors, (6766), 2602 states have call successors, (2602), 1127 states have call predecessors, (2602), 1121 states have return successors, (2640), 2519 states have call predecessors, (2640), 2600 states have call successors, (2640) [2022-11-25 23:59:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9162 states to 9162 states and 12008 transitions. [2022-11-25 23:59:51,129 INFO L78 Accepts]: Start accepts. Automaton has 9162 states and 12008 transitions. Word has length 130 [2022-11-25 23:59:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 9162 states and 12008 transitions. [2022-11-25 23:59:51,130 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) [2022-11-25 23:59:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9162 states and 12008 transitions. [2022-11-25 23:59:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 23:59:51,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:51,134 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] [2022-11-25 23:59:51,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:59:51,134 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)] === [2022-11-25 23:59:51,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:51,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1667005784, now seen corresponding path program 1 times [2022-11-25 23:59:51,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:51,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102765285] [2022-11-25 23:59:51,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:59:51,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:51,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102765285] [2022-11-25 23:59:51,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102765285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:51,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:51,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:51,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484869533] [2022-11-25 23:59:51,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:51,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:51,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:51,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:51,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:51,485 INFO L87 Difference]: Start difference. First operand 9162 states and 12008 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) [2022-11-25 23:59:54,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:58,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:00,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:03,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:05,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:07,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:09,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:09,902 INFO L93 Difference]: Finished difference Result 9303 states and 12174 transitions. [2022-11-26 00:00:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:09,902 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 [2022-11-26 00:00:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:09,927 INFO L225 Difference]: With dead ends: 9303 [2022-11-26 00:00:09,927 INFO L226 Difference]: Without dead ends: 9169 [2022-11-26 00:00:09,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:09,934 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 1409 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 5467 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:09,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 5467 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 906 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2022-11-26 00:00:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2022-11-26 00:00:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 9034. [2022-11-26 00:00:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 5351 states have (on average 1.251728648850682) internal successors, (6698), 5570 states have internal predecessors, (6698), 2558 states have call successors, (2558), 1108 states have call predecessors, (2558), 1101 states have return successors, (2594), 2477 states have call predecessors, (2594), 2554 states have call successors, (2594) [2022-11-26 00:00:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 11850 transitions. [2022-11-26 00:00:11,339 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 11850 transitions. Word has length 135 [2022-11-26 00:00:11,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:11,339 INFO L495 AbstractCegarLoop]: Abstraction has 9034 states and 11850 transitions. [2022-11-26 00:00:11,339 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) [2022-11-26 00:00:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 11850 transitions. [2022-11-26 00:00:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-26 00:00:11,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:11,342 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] [2022-11-26 00:00:11,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:00:11,342 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)] === [2022-11-26 00:00:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1062282605, now seen corresponding path program 1 times [2022-11-26 00:00:11,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:11,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104132503] [2022-11-26 00:00:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-26 00:00:11,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:11,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104132503] [2022-11-26 00:00:11,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104132503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:11,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:11,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:00:11,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932598262] [2022-11-26 00:00:11,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:11,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:00:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:00:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:11,872 INFO L87 Difference]: Start difference. First operand 9034 states and 11850 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) [2022-11-26 00:00:14,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:18,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:21,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:22,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:23,948 INFO L93 Difference]: Finished difference Result 19906 states and 26693 transitions. [2022-11-26 00:00:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:00:23,949 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 [2022-11-26 00:00:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:23,984 INFO L225 Difference]: With dead ends: 19906 [2022-11-26 00:00:23,985 INFO L226 Difference]: Without dead ends: 10893 [2022-11-26 00:00:24,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:24,020 INFO L413 NwaCegarLoop]: 1836 mSDtfsCounter, 234 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:24,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 3372 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 563 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-26 00:00:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-11-26 00:00:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9058. [2022-11-26 00:00:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9058 states, 5369 states have (on average 1.250884708511827) internal successors, (6716), 5588 states have internal predecessors, (6716), 2564 states have call successors, (2564), 1108 states have call predecessors, (2564), 1101 states have return successors, (2600), 2483 states have call predecessors, (2600), 2560 states have call successors, (2600) [2022-11-26 00:00:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 11880 transitions. [2022-11-26 00:00:25,280 INFO L78 Accepts]: Start accepts. Automaton has 9058 states and 11880 transitions. Word has length 155 [2022-11-26 00:00:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:25,281 INFO L495 AbstractCegarLoop]: Abstraction has 9058 states and 11880 transitions. [2022-11-26 00:00:25,281 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) [2022-11-26 00:00:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 9058 states and 11880 transitions. [2022-11-26 00:00:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-26 00:00:25,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:25,285 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] [2022-11-26 00:00:25,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:00:25,285 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)] === [2022-11-26 00:00:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash -810542077, now seen corresponding path program 1 times [2022-11-26 00:00:25,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:25,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469597249] [2022-11-26 00:00:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-26 00:00:26,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469597249] [2022-11-26 00:00:26,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469597249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:26,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:26,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107477089] [2022-11-26 00:00:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:26,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:26,010 INFO L87 Difference]: Start difference. First operand 9058 states and 11880 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) [2022-11-26 00:00:29,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:33,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:37,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:38,847 INFO L93 Difference]: Finished difference Result 9063 states and 11884 transitions. [2022-11-26 00:00:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:00:38,848 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 [2022-11-26 00:00:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:38,873 INFO L225 Difference]: With dead ends: 9063 [2022-11-26 00:00:38,873 INFO L226 Difference]: Without dead ends: 9061 [2022-11-26 00:00:38,876 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 [2022-11-26 00:00:38,877 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 398 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 5803 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:38,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 5803 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-26 00:00:38,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9061 states. [2022-11-26 00:00:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9061 to 9058. [2022-11-26 00:00:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9058 states, 5369 states have (on average 1.2484634010057738) internal successors, (6703), 5588 states have internal predecessors, (6703), 2564 states have call successors, (2564), 1108 states have call predecessors, (2564), 1101 states have return successors, (2600), 2483 states have call predecessors, (2600), 2560 states have call successors, (2600) [2022-11-26 00:00:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 11867 transitions. [2022-11-26 00:00:40,005 INFO L78 Accepts]: Start accepts. Automaton has 9058 states and 11867 transitions. Word has length 161 [2022-11-26 00:00:40,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:40,006 INFO L495 AbstractCegarLoop]: Abstraction has 9058 states and 11867 transitions. [2022-11-26 00:00:40,006 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) [2022-11-26 00:00:40,006 INFO L276 IsEmpty]: Start isEmpty. Operand 9058 states and 11867 transitions. [2022-11-26 00:00:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-26 00:00:40,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:40,010 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] [2022-11-26 00:00:40,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:00:40,011 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)] === [2022-11-26 00:00:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash -14409861, now seen corresponding path program 1 times [2022-11-26 00:00:40,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:40,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878065866] [2022-11-26 00:00:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:40,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:40,230 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:00:40,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608660871] [2022-11-26 00:00:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:40,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:00:40,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:00:40,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:00:40,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:00:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:41,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 3684 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:00:41,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:00:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-26 00:00:42,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:00:42,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:42,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878065866] [2022-11-26 00:00:42,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:00:42,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608660871] [2022-11-26 00:00:42,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608660871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:42,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:42,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:42,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844279360] [2022-11-26 00:00:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:42,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:42,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:42,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:42,745 INFO L87 Difference]: Start difference. First operand 9058 states and 11867 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) [2022-11-26 00:00:45,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:49,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:55,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:57,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:59,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:01,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:02,127 INFO L93 Difference]: Finished difference Result 9090 states and 11889 transitions. [2022-11-26 00:01:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:02,128 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 [2022-11-26 00:01:02,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:02,154 INFO L225 Difference]: With dead ends: 9090 [2022-11-26 00:01:02,154 INFO L226 Difference]: Without dead ends: 9088 [2022-11-26 00:01:02,158 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 [2022-11-26 00:01:02,158 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1534 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 4662 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:02,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 4662 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 819 Invalid, 5 Unknown, 0 Unchecked, 18.0s Time] [2022-11-26 00:01:02,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2022-11-26 00:01:03,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 9086. [2022-11-26 00:01:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 5388 states have (on average 1.2457312546399406) internal successors, (6712), 5606 states have internal predecessors, (6712), 2564 states have call successors, (2564), 1118 states have call predecessors, (2564), 1111 states have return successors, (2600), 2483 states have call predecessors, (2600), 2560 states have call successors, (2600) [2022-11-26 00:01:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 11876 transitions. [2022-11-26 00:01:03,117 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 11876 transitions. Word has length 160 [2022-11-26 00:01:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 9086 states and 11876 transitions. [2022-11-26 00:01:03,117 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) [2022-11-26 00:01:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 11876 transitions. [2022-11-26 00:01:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-26 00:01:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:03,120 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] [2022-11-26 00:01:03,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:01:03,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-26 00:01:03,321 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)] === [2022-11-26 00:01:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1962072602, now seen corresponding path program 1 times [2022-11-26 00:01:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:03,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346442800] [2022-11-26 00:01:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:03,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-26 00:01:04,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:04,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346442800] [2022-11-26 00:01:04,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346442800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:04,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:04,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:01:04,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244949358] [2022-11-26 00:01:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:04,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:01:04,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:01:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:01:04,387 INFO L87 Difference]: Start difference. First operand 9086 states and 11876 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) [2022-11-26 00:01:08,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:14,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:18,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:19,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:21,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:23,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:25,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:27,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:30,172 INFO L93 Difference]: Finished difference Result 20100 states and 26922 transitions. [2022-11-26 00:01:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:01:30,172 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 [2022-11-26 00:01:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:30,206 INFO L225 Difference]: With dead ends: 20100 [2022-11-26 00:01:30,206 INFO L226 Difference]: Without dead ends: 11035 [2022-11-26 00:01:30,233 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 [2022-11-26 00:01:30,234 INFO L413 NwaCegarLoop]: 1832 mSDtfsCounter, 237 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 10668 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:30,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 10668 Invalid, 1816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1809 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2022-11-26 00:01:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2022-11-26 00:01:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 9116. [2022-11-26 00:01:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9116 states, 5406 states have (on average 1.244913059563448) internal successors, (6730), 5624 states have internal predecessors, (6730), 2564 states have call successors, (2564), 1118 states have call predecessors, (2564), 1123 states have return successors, (2618), 2495 states have call predecessors, (2618), 2560 states have call successors, (2618) [2022-11-26 00:01:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9116 states to 9116 states and 11912 transitions. [2022-11-26 00:01:31,792 INFO L78 Accepts]: Start accepts. Automaton has 9116 states and 11912 transitions. Word has length 169 [2022-11-26 00:01:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:31,793 INFO L495 AbstractCegarLoop]: Abstraction has 9116 states and 11912 transitions. [2022-11-26 00:01:31,793 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) [2022-11-26 00:01:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 9116 states and 11912 transitions. [2022-11-26 00:01:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-26 00:01:31,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:31,796 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:31,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:01:31,797 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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)] === [2022-11-26 00:01:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1147448535, now seen corresponding path program 1 times [2022-11-26 00:01:31,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:31,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670426535] [2022-11-26 00:01:31,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:31,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-26 00:01:32,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:32,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670426535] [2022-11-26 00:01:32,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670426535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:32,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:32,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:01:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024313884] [2022-11-26 00:01:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:32,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:01:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:32,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:01:32,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:32,424 INFO L87 Difference]: Start difference. First operand 9116 states and 11912 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:01:35,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:40,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:45,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:46,778 INFO L93 Difference]: Finished difference Result 16781 states and 22235 transitions. [2022-11-26 00:01:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2022-11-26 00:01:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:46,808 INFO L225 Difference]: With dead ends: 16781 [2022-11-26 00:01:46,808 INFO L226 Difference]: Without dead ends: 9986 [2022-11-26 00:01:46,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:46,825 INFO L413 NwaCegarLoop]: 1826 mSDtfsCounter, 311 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 6885 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:46,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 6885 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1134 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2022-11-26 00:01:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2022-11-26 00:01:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 9124. [2022-11-26 00:01:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9124 states, 5412 states have (on average 1.2446415373244641) internal successors, (6736), 5630 states have internal predecessors, (6736), 2564 states have call successors, (2564), 1118 states have call predecessors, (2564), 1125 states have return successors, (2622), 2497 states have call predecessors, (2622), 2560 states have call successors, (2622) [2022-11-26 00:01:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9124 states to 9124 states and 11922 transitions. [2022-11-26 00:01:47,891 INFO L78 Accepts]: Start accepts. Automaton has 9124 states and 11922 transitions. Word has length 173 [2022-11-26 00:01:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:47,892 INFO L495 AbstractCegarLoop]: Abstraction has 9124 states and 11922 transitions. [2022-11-26 00:01:47,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:01:47,892 INFO L276 IsEmpty]: Start isEmpty. Operand 9124 states and 11922 transitions. [2022-11-26 00:01:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-26 00:01:47,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:47,897 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] [2022-11-26 00:01:47,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-26 00:01:47,897 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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)] === [2022-11-26 00:01:47,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:47,898 INFO L85 PathProgramCache]: Analyzing trace with hash 848268073, now seen corresponding path program 1 times [2022-11-26 00:01:47,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:47,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375218873] [2022-11-26 00:01:47,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:47,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:48,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:01:48,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009546927] [2022-11-26 00:01:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:48,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:01:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:01:48,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:01:48,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:01:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:50,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:01:50,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:01:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-26 00:01:50,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:01:50,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:50,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375218873] [2022-11-26 00:01:50,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:01:50,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009546927] [2022-11-26 00:01:50,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009546927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:50,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:50,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:01:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122298802] [2022-11-26 00:01:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:50,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:01:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:50,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:01:50,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:50,946 INFO L87 Difference]: Start difference. First operand 9124 states and 11922 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) [2022-11-26 00:01:53,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:57,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:00,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:01,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:02,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:02,418 INFO L93 Difference]: Finished difference Result 18427 states and 24136 transitions. [2022-11-26 00:02:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:02,418 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 [2022-11-26 00:02:02,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:02,459 INFO L225 Difference]: With dead ends: 18427 [2022-11-26 00:02:02,459 INFO L226 Difference]: Without dead ends: 9324 [2022-11-26 00:02:02,490 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 [2022-11-26 00:02:02,490 INFO L413 NwaCegarLoop]: 1424 mSDtfsCounter, 16 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:02,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2834 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-26 00:02:02,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2022-11-26 00:02:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 9140. [2022-11-26 00:02:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9140 states, 5428 states have (on average 1.2439204126750185) internal successors, (6752), 5646 states have internal predecessors, (6752), 2564 states have call successors, (2564), 1118 states have call predecessors, (2564), 1125 states have return successors, (2622), 2497 states have call predecessors, (2622), 2560 states have call successors, (2622) [2022-11-26 00:02:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9140 states to 9140 states and 11938 transitions. [2022-11-26 00:02:03,709 INFO L78 Accepts]: Start accepts. Automaton has 9140 states and 11938 transitions. Word has length 174 [2022-11-26 00:02:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:03,710 INFO L495 AbstractCegarLoop]: Abstraction has 9140 states and 11938 transitions. [2022-11-26 00:02:03,710 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) [2022-11-26 00:02:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 9140 states and 11938 transitions. [2022-11-26 00:02:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-26 00:02:03,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:03,713 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] [2022-11-26 00:02:03,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:02:03,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:02:03,914 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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)] === [2022-11-26 00:02:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash -766434429, now seen corresponding path program 1 times [2022-11-26 00:02:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:03,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238383370] [2022-11-26 00:02:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:03,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-26 00:02:05,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238383370] [2022-11-26 00:02:05,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238383370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:05,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:05,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:02:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613722346] [2022-11-26 00:02:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:05,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:02:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:02:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:02:05,294 INFO L87 Difference]: Start difference. First operand 9140 states and 11938 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) [2022-11-26 00:02:08,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:13,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:18,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:22,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:23,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:25,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:28,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:30,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:31,652 INFO L93 Difference]: Finished difference Result 12310 states and 15865 transitions. [2022-11-26 00:02:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:02:31,652 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 [2022-11-26 00:02:31,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:31,686 INFO L225 Difference]: With dead ends: 12310 [2022-11-26 00:02:31,686 INFO L226 Difference]: Without dead ends: 12308 [2022-11-26 00:02:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:02:31,691 INFO L413 NwaCegarLoop]: 2087 mSDtfsCounter, 1378 mSDsluCounter, 6939 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 9026 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:31,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 9026 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1504 Invalid, 6 Unknown, 0 Unchecked, 24.5s Time] [2022-11-26 00:02:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2022-11-26 00:02:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 11812. [2022-11-26 00:02:32,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11812 states, 7005 states have (on average 1.2372591006423983) internal successors, (8667), 7283 states have internal predecessors, (8667), 3274 states have call successors, (3274), 1503 states have call predecessors, (3274), 1510 states have return successors, (3352), 3183 states have call predecessors, (3352), 3270 states have call successors, (3352) [2022-11-26 00:02:32,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11812 states to 11812 states and 15293 transitions. [2022-11-26 00:02:32,989 INFO L78 Accepts]: Start accepts. Automaton has 11812 states and 15293 transitions. Word has length 182 [2022-11-26 00:02:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:32,989 INFO L495 AbstractCegarLoop]: Abstraction has 11812 states and 15293 transitions. [2022-11-26 00:02:32,989 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) [2022-11-26 00:02:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 11812 states and 15293 transitions. [2022-11-26 00:02:32,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-26 00:02:32,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:32,995 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:32,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-26 00:02:32,996 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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)] === [2022-11-26 00:02:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:32,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1785125628, now seen corresponding path program 1 times [2022-11-26 00:02:32,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:32,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865034837] [2022-11-26 00:02:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:32,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-26 00:02:33,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:33,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865034837] [2022-11-26 00:02:33,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865034837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:33,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:33,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:33,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819705363] [2022-11-26 00:02:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:33,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:02:33,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:33,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:02:33,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:02:33,566 INFO L87 Difference]: Start difference. First operand 11812 states and 15293 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:02:36,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:40,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:44,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:45,703 INFO L93 Difference]: Finished difference Result 24237 states and 31524 transitions. [2022-11-26 00:02:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:02:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 191 [2022-11-26 00:02:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:45,741 INFO L225 Difference]: With dead ends: 24237 [2022-11-26 00:02:45,741 INFO L226 Difference]: Without dead ends: 12446 [2022-11-26 00:02:45,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:45,768 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 104 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:45,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 4324 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 755 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-26 00:02:45,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2022-11-26 00:02:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 11832. [2022-11-26 00:02:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11832 states, 7025 states have (on average 1.2365836298932384) internal successors, (8687), 7303 states have internal predecessors, (8687), 3274 states have call successors, (3274), 1503 states have call predecessors, (3274), 1510 states have return successors, (3352), 3183 states have call predecessors, (3352), 3270 states have call successors, (3352) [2022-11-26 00:02:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11832 states to 11832 states and 15313 transitions. [2022-11-26 00:02:47,262 INFO L78 Accepts]: Start accepts. Automaton has 11832 states and 15313 transitions. Word has length 191 [2022-11-26 00:02:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:47,262 INFO L495 AbstractCegarLoop]: Abstraction has 11832 states and 15313 transitions. [2022-11-26 00:02:47,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-26 00:02:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 11832 states and 15313 transitions. [2022-11-26 00:02:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-26 00:02:47,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:47,267 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] [2022-11-26 00:02:47,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-26 00:02:47,268 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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)] === [2022-11-26 00:02:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash -867414004, now seen corresponding path program 1 times [2022-11-26 00:02:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:47,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280280358] [2022-11-26 00:02:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-26 00:02:48,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:48,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280280358] [2022-11-26 00:02:48,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280280358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:48,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:48,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:02:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454135497] [2022-11-26 00:02:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:48,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:02:48,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:02:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:02:48,290 INFO L87 Difference]: Start difference. First operand 11832 states and 15313 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) [2022-11-26 00:02:51,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:02:56,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:02,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:04,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:06,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:06,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:06,935 INFO L93 Difference]: Finished difference Result 11910 states and 15370 transitions. [2022-11-26 00:03:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:03:06,935 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 [2022-11-26 00:03:06,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:06,966 INFO L225 Difference]: With dead ends: 11910 [2022-11-26 00:03:06,967 INFO L226 Difference]: Without dead ends: 11908 [2022-11-26 00:03:06,972 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 [2022-11-26 00:03:06,973 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 125 mSDsluCounter, 4295 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:06,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 5749 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1040 Invalid, 5 Unknown, 0 Unchecked, 17.1s Time] [2022-11-26 00:03:06,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11908 states. [2022-11-26 00:03:08,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11908 to 11774. [2022-11-26 00:03:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11774 states, 6998 states have (on average 1.2363532437839382) internal successors, (8652), 7273 states have internal predecessors, (8652), 3250 states have call successors, (3250), 1497 states have call predecessors, (3250), 1504 states have return successors, (3328), 3161 states have call predecessors, (3328), 3246 states have call successors, (3328) [2022-11-26 00:03:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11774 states to 11774 states and 15230 transitions. [2022-11-26 00:03:08,603 INFO L78 Accepts]: Start accepts. Automaton has 11774 states and 15230 transitions. Word has length 198 [2022-11-26 00:03:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:08,604 INFO L495 AbstractCegarLoop]: Abstraction has 11774 states and 15230 transitions. [2022-11-26 00:03:08,604 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) [2022-11-26 00:03:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 11774 states and 15230 transitions. [2022-11-26 00:03:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-26 00:03:08,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:08,608 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] [2022-11-26 00:03:08,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-26 00:03:08,608 INFO L420 AbstractCegarLoop]: === Iteration 38 === 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)] === [2022-11-26 00:03:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1636318439, now seen corresponding path program 1 times [2022-11-26 00:03:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:08,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512747268] [2022-11-26 00:03:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-26 00:03:09,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:09,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512747268] [2022-11-26 00:03:09,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512747268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:09,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:09,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:03:09,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967481347] [2022-11-26 00:03:09,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:09,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:03:09,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:09,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:03:09,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:03:09,543 INFO L87 Difference]: Start difference. First operand 11774 states and 15230 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) [2022-11-26 00:03:12,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:13,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:15,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:16,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:18,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:20,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:25,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:32,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:03:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,381 INFO L93 Difference]: Finished difference Result 14890 states and 19055 transitions. [2022-11-26 00:03:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:03:33,382 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 [2022-11-26 00:03:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,415 INFO L225 Difference]: With dead ends: 14890 [2022-11-26 00:03:33,415 INFO L226 Difference]: Without dead ends: 12367 [2022-11-26 00:03:33,422 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 [2022-11-26 00:03:33,423 INFO L413 NwaCegarLoop]: 1517 mSDtfsCounter, 37 mSDsluCounter, 7507 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 9024 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 9024 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1617 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2022-11-26 00:03:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-11-26 00:03:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 11834. [2022-11-26 00:03:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 7038 states have (on average 1.2350099460073884) internal successors, (8692), 7313 states have internal predecessors, (8692), 3250 states have call successors, (3250), 1497 states have call predecessors, (3250), 1524 states have return successors, (3348), 3181 states have call predecessors, (3348), 3246 states have call successors, (3348) [2022-11-26 00:03:34,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 15290 transitions. [2022-11-26 00:03:34,902 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 15290 transitions. Word has length 248 [2022-11-26 00:03:34,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:34,902 INFO L495 AbstractCegarLoop]: Abstraction has 11834 states and 15290 transitions. [2022-11-26 00:03:34,902 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) [2022-11-26 00:03:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 15290 transitions. [2022-11-26 00:03:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-26 00:03:34,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:34,906 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] [2022-11-26 00:03:34,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-26 00:03:34,907 INFO L420 AbstractCegarLoop]: === Iteration 39 === 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)] === [2022-11-26 00:03:34,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash -579978320, now seen corresponding path program 1 times [2022-11-26 00:03:34,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:34,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25741734] [2022-11-26 00:03:34,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:35,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:03:35,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459458878] [2022-11-26 00:03:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:35,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:35,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:35,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:35,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b69d76-a036-44b4-ae98-63049025e614/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:03:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:38,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 4109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:03:38,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-26 00:03:38,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-26 00:03:39,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:39,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25741734] [2022-11-26 00:03:39,152 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:03:39,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459458878] [2022-11-26 00:03:39,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459458878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:39,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [371876] [2022-11-26 00:03:39,215 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-11-26 00:03:39,215 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:39,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:39,227 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:39,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:41,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:41,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 379 [2022-11-26 00:03:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 379 [2022-11-26 00:03:42,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:42,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 379 [2022-11-26 00:03:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:43,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 173 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 388 [2022-11-26 00:03:44,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 178 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 396 [2022-11-26 00:03:44,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:03:44,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 371 [2022-11-26 00:03:45,551 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 [2022-11-26 00:04:41,718 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 [2022-11-26 00:04:41,729 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 [2022-11-26 00:04:54,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,690 INFO L217 Elim1Store]: Index analysis took 173 ms [2022-11-26 00:04:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:04:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:54,960 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-26 00:04:54,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 55 select indices, 55 select index equivalence classes, 466 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 2 case distinctions, treesize of input 511 treesize of output 676 [2022-11-26 00:04:55,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:04:55,711 INFO L217 Elim1Store]: Index analysis took 382 ms [2022-11-26 00:05:03,234 WARN L233 SmtUtils]: Spent 7.51s 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) [2022-11-26 00:05:03,235 INFO L321 Elim1Store]: treesize reduction 782, result has 50.0 percent of original size [2022-11-26 00:05:03,237 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 [2022-11-26 00:05:17,632 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:17,853 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:18,313 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:18,490 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:32,075 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:32,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:05:32,289 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 [2022-11-26 00:05:32,923 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:33,200 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:40,114 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:40,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:05:40,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:05:40,378 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 [2022-11-26 00:05:40,791 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:41,008 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:46,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:46,371 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:46,803 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:05:47,007 WARN L207 Elim1Store]: Array PQE input equivalent to false