./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/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_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/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_3b623041-6dd7-4015-8db7-35edff59e9ba/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 e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:02:14,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:02:14,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:02:14,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:02:14,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:02:14,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:02:14,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:02:14,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:02:14,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:02:14,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:02:14,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:02:14,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:02:14,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:02:14,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:02:14,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:02:14,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:02:14,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:02:14,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:02:14,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:02:14,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:02:14,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:02:14,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:02:14,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:02:14,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:02:14,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:02:14,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:02:14,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:02:14,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:02:14,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:02:14,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:02:14,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:02:14,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:02:14,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:02:14,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:02:14,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:02:14,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:02:14,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:02:14,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:02:14,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:02:14,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:02:14,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:02:14,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:02:14,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:02:14,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:02:14,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:02:14,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:02:14,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:02:14,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:02:14,407 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:02:14,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:02:14,408 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:02:14,408 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:02:14,409 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:02:14,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:02:14,410 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:02:14,410 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:02:14,410 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:02:14,410 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:02:14,411 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:02:14,411 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:02:14,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:02:14,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:02:14,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:02:14,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:02:14,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:02:14,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:02:14,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:02:14,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:02:14,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:02:14,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:02:14,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:02:14,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:14,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:02:14,415 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:02:14,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:02:14,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:02:14,415 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:02:14,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:02:14,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:02:14,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:02:14,416 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_3b623041-6dd7-4015-8db7-35edff59e9ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb [2022-11-26 00:02:14,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:02:14,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:02:14,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:02:14,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:02:14,782 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:02:14,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:17,999 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:02:18,528 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:02:18,529 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:18,552 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/c9a80cf66/a1522df6f6c24dce9637a95ef9eb22ed/FLAG6278e31a0 [2022-11-26 00:02:18,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/c9a80cf66/a1522df6f6c24dce9637a95ef9eb22ed [2022-11-26 00:02:18,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:02:18,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:02:18,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:18,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:02:18,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:02:18,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:18" (1/1) ... [2022-11-26 00:02:18,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1659f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:18, skipping insertion in model container [2022-11-26 00:02:18,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:18" (1/1) ... [2022-11-26 00:02:18,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:02:18,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:19,225 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:02:19,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:19,308 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:02:19,308 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:02:19,327 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-26 00:02:19,410 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:02:19,411 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-26 00:02:19,452 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:19,462 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-26 00:02:19,470 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-26 00:02:19,484 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:19,493 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-26 00:02:19,509 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-26 00:02:19,530 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:02:19,534 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-26 00:02:19,544 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:02:19,544 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:19,545 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-26 00:02:19,546 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-26 00:02:19,551 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-26 00:02:19,560 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-26 00:02:19,565 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:19,571 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-26 00:02:19,572 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-26 00:02:19,572 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-26 00:02:19,573 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-26 00:02:19,580 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-26 00:02:19,582 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-26 00:02:19,583 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-26 00:02:19,590 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-26 00:02:19,606 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:19,607 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-26 00:02:19,610 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:02:19,611 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:02:19,613 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:19,614 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:19,616 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:19,619 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:19,620 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:19,621 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-26 00:02:19,623 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:02:19,623 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-26 00:02:19,624 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-26 00:02:19,624 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:19,625 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:19,626 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-26 00:02:19,627 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-26 00:02:19,628 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-26 00:02:19,629 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-26 00:02:19,630 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-26 00:02:19,631 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:02:19,631 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:19,631 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:19,632 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:19,637 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:02:19,638 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:02:19,639 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:19,639 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:19,640 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:19,644 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:02:19,646 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-26 00:02:19,649 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:02:19,650 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-26 00:02:19,659 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:19,660 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:19,661 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:19,661 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:19,662 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:19,665 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:19,666 WARN L623 FunctionHandler]: Unknown extern function blk_make_request [2022-11-26 00:02:19,669 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2022-11-26 00:02:19,677 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:19,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:19,723 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:02:19,866 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:02:19,872 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:19,881 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:02:19,881 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:02:19,886 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-26 00:02:19,901 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:02:19,902 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-26 00:02:19,909 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:19,918 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-26 00:02:19,923 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-26 00:02:19,935 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:19,936 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-26 00:02:19,938 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-26 00:02:19,962 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:02:19,965 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-26 00:02:19,965 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:02:19,966 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:19,966 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-26 00:02:19,967 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-26 00:02:19,976 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-26 00:02:19,982 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-26 00:02:19,985 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:19,988 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-26 00:02:19,989 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-26 00:02:19,989 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-26 00:02:19,990 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-26 00:02:19,991 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-26 00:02:20,000 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-26 00:02:20,001 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-26 00:02:20,046 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-26 00:02:20,080 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:20,081 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-26 00:02:20,083 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:02:20,085 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:02:20,093 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:20,095 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:20,097 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:20,103 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:20,108 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:20,110 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-26 00:02:20,113 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:02:20,115 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-26 00:02:20,115 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-26 00:02:20,116 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:20,116 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:20,117 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-26 00:02:20,118 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-26 00:02:20,119 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-26 00:02:20,120 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-26 00:02:20,121 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-26 00:02:20,122 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:02:20,123 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:20,124 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:20,133 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:20,137 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:02:20,138 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:02:20,141 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:20,142 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:20,145 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:20,147 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:02:20,150 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-26 00:02:20,151 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:02:20,152 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-26 00:02:20,153 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:20,154 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:20,154 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:20,155 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:20,156 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:20,158 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:20,159 WARN L623 FunctionHandler]: Unknown extern function blk_make_request [2022-11-26 00:02:20,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2022-11-26 00:02:20,165 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:20,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:20,227 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:02:20,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20 WrapperNode [2022-11-26 00:02:20,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:20,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:20,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:02:20,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:02:20,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,375 INFO L138 Inliner]: procedures = 143, calls = 530, calls flagged for inlining = 91, calls inlined = 29, statements flattened = 500 [2022-11-26 00:02:20,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:20,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:02:20,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:02:20,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:02:20,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:02:20,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:02:20,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:02:20,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:02:20,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2022-11-26 00:02:20,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:20,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:02:20,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:02:20,574 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2022-11-26 00:02:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2022-11-26 00:02:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:02:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-26 00:02:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-26 00:02:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:02:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:02:20,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:02:20,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 00:02:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 00:02:20,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:02:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:02:20,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:02:20,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:02:20,578 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-11-26 00:02:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-11-26 00:02:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:02:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:02:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-26 00:02:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-26 00:02:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:02:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:02:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:02:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:02:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:02:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-26 00:02:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-26 00:02:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:02:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:02:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-26 00:02:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-26 00:02:20,959 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:02:20,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:02:21,691 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:02:21,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:02:21,857 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:02:21,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:21 BoogieIcfgContainer [2022-11-26 00:02:21,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:02:21,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:02:21,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:02:21,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:02:21,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:18" (1/3) ... [2022-11-26 00:02:21,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f0737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:21, skipping insertion in model container [2022-11-26 00:02:21,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (2/3) ... [2022-11-26 00:02:21,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f0737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:21, skipping insertion in model container [2022-11-26 00:02:21,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:21" (3/3) ... [2022-11-26 00:02:21,870 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:21,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:02:21,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:02:21,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:02:21,960 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;@4ea3e2d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:02:21,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:02:21,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-26 00:02:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:02:21,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:21,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:21,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:02:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1992333900, now seen corresponding path program 1 times [2022-11-26 00:02:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:21,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648899127] [2022-11-26 00:02:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:02:22,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648899127] [2022-11-26 00:02:22,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648899127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:22,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:22,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:02:22,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592660650] [2022-11-26 00:02:22,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:22,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:02:22,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:22,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:22,576 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:02:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:22,814 INFO L93 Difference]: Finished difference Result 218 states and 276 transitions. [2022-11-26 00:02:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:22,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-26 00:02:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:22,827 INFO L225 Difference]: With dead ends: 218 [2022-11-26 00:02:22,827 INFO L226 Difference]: Without dead ends: 136 [2022-11-26 00:02:22,831 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 00:02:22,835 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 86 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:22,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 153 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:02:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-26 00:02:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-11-26 00:02:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 85 states have (on average 1.2117647058823529) internal successors, (103), 86 states have internal predecessors, (103), 33 states have call successors, (33), 18 states have call predecessors, (33), 17 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-26 00:02:22,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2022-11-26 00:02:22,900 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 10 [2022-11-26 00:02:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:22,901 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2022-11-26 00:02:22,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:02:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2022-11-26 00:02:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-26 00:02:22,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:22,906 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:22,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:02:22,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:02:22,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:22,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2132788677, now seen corresponding path program 1 times [2022-11-26 00:02:22,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:22,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429254492] [2022-11-26 00:02:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:22,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:02:23,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:02:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:02:23,328 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:02:23,328 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:02:23,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:02:23,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:02:23,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:02:23,342 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:02:23,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:23 BoogieIcfgContainer [2022-11-26 00:02:23,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:02:23,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:02:23,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:02:23,438 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:02:23,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:21" (3/4) ... [2022-11-26 00:02:23,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:02:23,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:02:23,443 INFO L158 Benchmark]: Toolchain (without parser) took 4862.27ms. Allocated memory is still 211.8MB. Free memory was 171.1MB in the beginning and 89.5MB in the end (delta: 81.6MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,443 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:02:23,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1646.16ms. Allocated memory is still 211.8MB. Free memory was 171.1MB in the beginning and 139.9MB in the end (delta: 31.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.06ms. Allocated memory is still 211.8MB. Free memory was 139.9MB in the beginning and 134.8MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,445 INFO L158 Benchmark]: Boogie Preprocessor took 83.52ms. Allocated memory is still 211.8MB. Free memory was 134.8MB in the beginning and 130.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,446 INFO L158 Benchmark]: RCFGBuilder took 1399.91ms. Allocated memory is still 211.8MB. Free memory was 130.6MB in the beginning and 107.2MB in the end (delta: 23.4MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,447 INFO L158 Benchmark]: TraceAbstraction took 1574.10ms. Allocated memory is still 211.8MB. Free memory was 106.1MB in the beginning and 89.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-11-26 00:02:23,447 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 211.8MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:02:23,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1646.16ms. Allocated memory is still 211.8MB. Free memory was 171.1MB in the beginning and 139.9MB in the end (delta: 31.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.06ms. Allocated memory is still 211.8MB. Free memory was 139.9MB in the beginning and 134.8MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.52ms. Allocated memory is still 211.8MB. Free memory was 134.8MB in the beginning and 130.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1399.91ms. Allocated memory is still 211.8MB. Free memory was 130.6MB in the beginning and 107.2MB in the end (delta: 23.4MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1574.10ms. Allocated memory is still 211.8MB. Free memory was 106.1MB in the beginning and 89.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 211.8MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4179. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; [L4210] struct block_device *var_group1 ; [L4211] fmode_t var_virtblk_ioctl_5_p1 ; [L4212] unsigned int var_virtblk_ioctl_5_p2 ; [L4213] unsigned long var_virtblk_ioctl_5_p3 ; [L4214] struct hd_geometry *var_group2 ; [L4215] int tmp ; [L4216] int tmp___0 ; [L4217] int tmp___1 ; [L4219] LDV_IN_INTERRUPT = 1 [L4220] FCALL ldv_initialize() [L4221] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4222] CALL, EXPR init() [L4183] int tmp ; [L4185] CALL, EXPR register_blkdev(0U, "virtblk") [L4531] return __VERIFIER_nondet_int(); [L4185] RET, EXPR register_blkdev(0U, "virtblk") [L4185] major = register_blkdev(0U, "virtblk") [L4186] COND FALSE !(major < 0) [L4190] CALL, EXPR register_virtio_driver(& virtio_blk) [L4535] return __VERIFIER_nondet_int(); [L4190] RET, EXPR register_virtio_driver(& virtio_blk) [L4190] tmp = register_virtio_driver(& virtio_blk) [L4191] return (tmp); [L4222] RET, EXPR init() [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND TRUE tmp___1 != 0 [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=1, virtblk_fops={12:0}, virtio_blk={15:0}] [L4232] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=1, virtblk_fops={12:0}, virtio_blk={15:0}] [L4233] CALL virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [L3912] struct gendisk *disk ; [L3913] struct virtio_blk *vblk ; [L3914] void *usr_data ; [L3915] char id_str[20U] ; [L3916] int err ; [L3917] int tmp ; [L3918] bool tmp___0 ; [L3919] int tmp___1 ; [L3920] int tmp___2 ; [L3922] EXPR bdev->bd_disk [L3922] disk = bdev->bd_disk [L3923] EXPR disk->private_data [L3923] vblk = (struct virtio_blk *)disk->private_data [L3924] COND TRUE cmd == 1447184708U [L3925] usr_data = (void *)data [L3926] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3879] struct virtio_blk *vblk ; [L3880] struct request *req ; [L3881] struct bio *bio ; [L3882] long tmp ; [L3883] long tmp___0 ; [L3884] long tmp___1 ; [L3885] long tmp___2 ; [L3886] int tmp___3 ; [L3888] EXPR disk->private_data [L3888] vblk = (struct virtio_blk *)disk->private_data [L3889] EXPR vblk->disk [L3889] EXPR (vblk->disk)->queue [L3889] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4427] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=112, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=112, virtblk_fops={12:0}, virtio_blk={15:0}] [L4427] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(arg2)=20, \old(arg3)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, arg0={18446744073709551624:18446744073709551625}, arg0={18446744073709551624:18446744073709551625}, arg1={17:0}, arg1={17:0}, arg2=20, arg3=208, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct bio))={0:0}, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4427] return ldv_malloc(sizeof(struct bio)); [L3889] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3889] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3890] CALL, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4307] return ((unsigned long )ptr > 2012UL); [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); [L3890] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, bio={0:0}, disk={18446744073709551615:0}, disk={18446744073709551615:0}, features={14:0}, id_str={17:0}, id_str={17:0}, id_table={13:0}, index=0, IS_ERR((void const *)bio)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, vblk={0:-8}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3890] tmp___0 = IS_ERR((void const *)bio) [L3891] COND FALSE !(tmp___0 != 0L) [L3896] EXPR vblk->disk [L3896] EXPR (vblk->disk)->queue [L3896] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4283] ldv_func_ret_type___3 ldv_func_res ; [L4284] struct request *tmp ; [L4286] CALL, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4443] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=322, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=322, virtblk_fops={12:0}, virtio_blk={15:0}] [L4443] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(arg2)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, arg0={18446744073709551624:18446744073709551625}, arg0={18446744073709551624:18446744073709551625}, arg1={0:0}, arg1={0:0}, arg2=208, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={0:0}, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4443] return ldv_malloc(sizeof(struct request)); [L4286] RET, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4286] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4287] ldv_func_res = tmp [L4288] CALL ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4351] long tmp ; VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4357] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4358] ldv_blk_rq = 1 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4288] RET ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4289] return (ldv_func_res); [L3896] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3896] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3897] CALL, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4307] return ((unsigned long )ptr > 2012UL); [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); [L3897] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, bio={0:0}, disk={18446744073709551615:0}, disk={18446744073709551615:0}, features={14:0}, id_str={17:0}, id_str={17:0}, id_table={13:0}, index=0, IS_ERR((void const *)req)=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, vblk={0:-8}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3897] tmp___2 = IS_ERR((void const *)req) [L3898] COND FALSE !(tmp___2 != 0L) [L3904] req->cmd_type = 7 [L3905] EXPR vblk->disk [L3905] EXPR (vblk->disk)->queue [L3905] EXPR vblk->disk [L3905] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4437] return __VERIFIER_nondet_int(); [L3905] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3905] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3906] return (tmp___3); VAL [\result=-14, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, bio={0:0}, disk={18446744073709551615:0}, disk={18446744073709551615:0}, features={14:0}, id_str={17:0}, id_str={17:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, tmp___2=0, tmp___3=-14, vblk={0:-8}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3926] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3926] err = virtblk_get_id(disk, (char *)(& id_str)) [L3927] COND FALSE !(err == 0) [L3935] return (err); [L3935] return (err); VAL [\old(cmd)=1447184708, \old(data)=18446744073709551613, \old(mode)=0, \result=-14, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, bdev={18446744073709551629:-2}, bdev={18446744073709551629:-2}, cmd=1447184708, copy_to_user(usr_data, (void const *)(& id_str), 20U)=18446744073709551620, data=18446744073709551613, disk={18446744073709551615:0}, err=-14, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mode=0, tmp=18, usr_data={0:-3}, vblk={0:-8}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4233] RET virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={18446744073709551629:-2}, var_virtblk_ioctl_5_p1=0, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=18446744073709551613, virtblk_fops={12:0}, virtio_blk={15:0}] [L4249] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={18446744073709551629:-2}, var_virtblk_ioctl_5_p1=0, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=18446744073709551613, virtblk_fops={12:0}, virtio_blk={15:0}] [L4250] CALL fini() [L4197] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4198] FCALL unregister_virtio_driver(& virtio_blk) [L4250] RET fini() [L4252] CALL ldv_check_final_state() [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4387] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551614:18446744073709551626}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 92 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:02:23,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/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_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/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 e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:02:25,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:02:26,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:02:26,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:02:26,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:02:26,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:02:26,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:02:26,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:02:26,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:02:26,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:02:26,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:02:26,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:02:26,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:02:26,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:02:26,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:02:26,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:02:26,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:02:26,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:02:26,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:02:26,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:02:26,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:02:26,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:02:26,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:02:26,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:02:26,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:02:26,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:02:26,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:02:26,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:02:26,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:02:26,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:02:26,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:02:26,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:02:26,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:02:26,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:02:26,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:02:26,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:02:26,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:02:26,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:02:26,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:02:26,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:02:26,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:02:26,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 00:02:26,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:02:26,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:02:26,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:02:26,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:02:26,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:02:26,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:02:26,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:02:26,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:02:26,208 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:02:26,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:02:26,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:02:26,210 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:02:26,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:02:26,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:02:26,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:02:26,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:02:26,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:02:26,212 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:02:26,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:02:26,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:02:26,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:02:26,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:02:26,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:02:26,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:02:26,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:02:26,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:02:26,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:26,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:02:26,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:02:26,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:02:26,215 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:02:26,215 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:02:26,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:02:26,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:02:26,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:02:26,217 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3b623041-6dd7-4015-8db7-35edff59e9ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb [2022-11-26 00:02:26,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:02:26,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:02:26,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:02:26,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:02:26,659 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:02:26,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:29,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:02:30,413 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:02:30,413 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:30,466 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/82018baeb/8d399b9c2dde4006805bedd278f9fb2f/FLAG6ed62227c [2022-11-26 00:02:30,494 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/data/82018baeb/8d399b9c2dde4006805bedd278f9fb2f [2022-11-26 00:02:30,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:02:30,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:02:30,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:30,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:02:30,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:02:30,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:30" (1/1) ... [2022-11-26 00:02:30,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bda94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:30, skipping insertion in model container [2022-11-26 00:02:30,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:30" (1/1) ... [2022-11-26 00:02:30,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:02:30,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:31,207 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:02:31,234 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:31,280 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:02:31,280 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:02:31,298 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-26 00:02:31,384 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:02:31,385 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-26 00:02:31,418 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:31,426 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-26 00:02:31,432 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-26 00:02:31,445 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:31,453 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-26 00:02:31,466 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-26 00:02:31,498 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:02:31,509 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-26 00:02:31,511 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:02:31,512 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:31,513 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-26 00:02:31,514 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-26 00:02:31,541 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-26 00:02:31,549 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-26 00:02:31,563 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:31,571 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-26 00:02:31,574 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-26 00:02:31,575 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-26 00:02:31,575 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-26 00:02:31,584 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-26 00:02:31,589 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-26 00:02:31,590 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-26 00:02:31,602 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-26 00:02:31,634 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:31,635 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-26 00:02:31,640 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:02:31,651 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:02:31,653 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:31,656 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:31,661 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:31,669 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:31,670 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:31,671 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-26 00:02:31,672 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:02:31,676 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-26 00:02:31,676 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-26 00:02:31,677 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:31,677 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:31,679 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-26 00:02:31,681 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-26 00:02:31,685 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-26 00:02:31,686 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-26 00:02:31,687 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-26 00:02:31,689 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:02:31,690 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:31,691 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:31,692 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:31,698 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:02:31,700 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:02:31,700 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:31,701 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:31,702 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:31,709 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:02:31,714 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-26 00:02:31,717 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:02:31,719 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-26 00:02:31,735 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:31,735 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:31,736 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:31,737 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:31,738 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:31,739 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:31,741 WARN L623 FunctionHandler]: Unknown extern function blk_make_request [2022-11-26 00:02:31,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2022-11-26 00:02:31,753 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:31,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:31,844 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 00:02:31,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:02:32,005 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:02:32,014 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:32,019 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:02:32,020 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:02:32,025 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-26 00:02:32,039 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:02:32,040 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-26 00:02:32,050 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,051 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-26 00:02:32,057 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-26 00:02:32,060 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:32,061 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-26 00:02:32,061 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-26 00:02:32,065 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:02:32,067 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-26 00:02:32,068 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:02:32,068 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:32,068 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-26 00:02:32,069 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-26 00:02:32,070 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-26 00:02:32,088 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-26 00:02:32,092 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:32,094 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-26 00:02:32,095 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-26 00:02:32,095 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-26 00:02:32,096 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-26 00:02:32,097 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-26 00:02:32,099 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-26 00:02:32,099 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-26 00:02:32,124 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-26 00:02:32,132 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:32,133 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-26 00:02:32,135 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:02:32,135 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:02:32,136 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,137 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,141 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,142 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:32,143 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:32,144 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-26 00:02:32,145 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:02:32,145 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-26 00:02:32,145 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-26 00:02:32,146 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:32,146 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:32,149 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-26 00:02:32,151 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-26 00:02:32,151 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-26 00:02:32,152 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-26 00:02:32,153 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-26 00:02:32,153 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:02:32,154 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:32,154 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:32,155 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:32,157 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:02:32,157 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:02:32,158 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:32,158 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:32,159 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:32,160 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:02:32,162 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-26 00:02:32,162 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:02:32,166 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-26 00:02:32,167 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:32,167 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,168 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,168 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,169 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,170 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,171 WARN L623 FunctionHandler]: Unknown extern function blk_make_request [2022-11-26 00:02:32,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2022-11-26 00:02:32,173 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:32,208 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:02:32,295 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 00:02:32,298 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:02:32,306 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:02:32,306 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:02:32,308 WARN L623 FunctionHandler]: Unknown extern function mempool_create [2022-11-26 00:02:32,319 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 00:02:32,320 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-11-26 00:02:32,328 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,329 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-11-26 00:02:32,337 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-11-26 00:02:32,353 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:02:32,354 WARN L623 FunctionHandler]: Unknown extern function virtqueue_add_buf_gfp [2022-11-26 00:02:32,355 WARN L623 FunctionHandler]: Unknown extern function virtio_check_driver_offered_feature [2022-11-26 00:02:32,363 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:02:32,369 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-26 00:02:32,370 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-26 00:02:32,370 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:32,370 WARN L623 FunctionHandler]: Unknown extern function virtqueue_get_buf [2022-11-26 00:02:32,371 WARN L623 FunctionHandler]: Unknown extern function blk_start_queue [2022-11-26 00:02:32,397 WARN L623 FunctionHandler]: Unknown extern function mempool_alloc [2022-11-26 00:02:32,403 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-26 00:02:32,410 WARN L623 FunctionHandler]: Unknown extern function mempool_free [2022-11-26 00:02:32,414 WARN L623 FunctionHandler]: Unknown extern function blk_stop_queue [2022-11-26 00:02:32,416 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-26 00:02:32,416 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-26 00:02:32,417 WARN L623 FunctionHandler]: Unknown extern function virtqueue_kick [2022-11-26 00:02:32,419 WARN L623 FunctionHandler]: Unknown extern function bio_map_kern [2022-11-26 00:02:32,431 WARN L623 FunctionHandler]: Unknown extern function bio_put [2022-11-26 00:02:32,431 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq [2022-11-26 00:02:32,441 WARN L623 FunctionHandler]: Unknown extern function scsi_cmd_ioctl [2022-11-26 00:02:32,452 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:02:32,455 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-26 00:02:32,457 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:02:32,457 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-26 00:02:32,464 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,466 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,467 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:02:32,471 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:32,475 WARN L623 FunctionHandler]: Unknown extern function blk_queue_ordered [2022-11-26 00:02:32,476 WARN L623 FunctionHandler]: Unknown extern function set_disk_ro [2022-11-26 00:02:32,479 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-26 00:02:32,479 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-26 00:02:32,480 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_hw_sectors [2022-11-26 00:02:32,480 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:32,480 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-11-26 00:02:32,481 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-26 00:02:32,482 WARN L623 FunctionHandler]: Unknown extern function blk_queue_physical_block_size [2022-11-26 00:02:32,483 WARN L623 FunctionHandler]: Unknown extern function blk_queue_alignment_offset [2022-11-26 00:02:32,484 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_min [2022-11-26 00:02:32,484 WARN L623 FunctionHandler]: Unknown extern function blk_queue_io_opt [2022-11-26 00:02:32,484 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 00:02:32,485 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:32,485 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:32,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:32,492 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 00:02:32,492 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 00:02:32,495 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:02:32,496 WARN L623 FunctionHandler]: Unknown extern function mempool_destroy [2022-11-26 00:02:32,498 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:02:32,501 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 00:02:32,502 WARN L623 FunctionHandler]: Unknown extern function register_virtio_driver [2022-11-26 00:02:32,503 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 00:02:32,503 WARN L623 FunctionHandler]: Unknown extern function unregister_virtio_driver [2022-11-26 00:02:32,504 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:02:32,505 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,505 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,506 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,506 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-26 00:02:32,533 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,534 WARN L623 FunctionHandler]: Unknown extern function blk_make_request [2022-11-26 00:02:32,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2022-11-26 00:02:32,535 WARN L623 FunctionHandler]: Unknown extern function ldv_is_err [2022-11-26 00:02:32,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:02:32,579 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:02:32,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32 WrapperNode [2022-11-26 00:02:32,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:02:32,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:32,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:02:32,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:02:32,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,710 INFO L138 Inliner]: procedures = 150, calls = 530, calls flagged for inlining = 91, calls inlined = 29, statements flattened = 474 [2022-11-26 00:02:32,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:02:32,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:02:32,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:02:32,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:02:32,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:02:32,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:02:32,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:02:32,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:02:32,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (1/1) ... [2022-11-26 00:02:32,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:02:32,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:32,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:02:32,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:02:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-26 00:02:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-26 00:02:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2022-11-26 00:02:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2022-11-26 00:02:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-26 00:02:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2022-11-26 00:02:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2022-11-26 00:02:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:02:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:02:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 00:02:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 00:02:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:02:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:02:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:02:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:02:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-11-26 00:02:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-11-26 00:02:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:02:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:02:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-26 00:02:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-26 00:02:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:02:32,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:02:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-26 00:02:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-26 00:02:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:02:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:02:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:02:32,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:02:32,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:02:32,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-26 00:02:32,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-26 00:02:32,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:02:32,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:02:32,923 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-26 00:02:32,923 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-26 00:02:33,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:02:33,216 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:02:34,420 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:02:34,429 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:02:34,429 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:02:34,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:34 BoogieIcfgContainer [2022-11-26 00:02:34,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:02:34,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:02:34,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:02:34,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:02:34,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:30" (1/3) ... [2022-11-26 00:02:34,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29686105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:34, skipping insertion in model container [2022-11-26 00:02:34,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:32" (2/3) ... [2022-11-26 00:02:34,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29686105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:34, skipping insertion in model container [2022-11-26 00:02:34,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:34" (3/3) ... [2022-11-26 00:02:34,462 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2022-11-26 00:02:34,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:02:34,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:02:34,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:02:34,576 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;@7f50b426, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:02:34,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:02:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 101 states have internal predecessors, (123), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-26 00:02:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:02:34,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:34,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:34,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:02:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1549604235, now seen corresponding path program 1 times [2022-11-26 00:02:34,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:02:34,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478281251] [2022-11-26 00:02:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:34,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:02:34,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:02:34,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:02:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:34,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:02:34,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:02:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:02:35,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:02:35,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:02:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478281251] [2022-11-26 00:02:35,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478281251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:35,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:35,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:02:35,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875469743] [2022-11-26 00:02:35,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:35,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:02:35,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:02:35,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:02:35,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:02:35,147 INFO L87 Difference]: Start difference. First operand has 129 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 101 states have internal predecessors, (123), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:02:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:35,230 INFO L93 Difference]: Finished difference Result 346 states and 438 transitions. [2022-11-26 00:02:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:02:35,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-26 00:02:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:35,243 INFO L225 Difference]: With dead ends: 346 [2022-11-26 00:02:35,243 INFO L226 Difference]: Without dead ends: 216 [2022-11-26 00:02:35,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 00:02:35,251 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 137 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:35,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 303 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:02:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-26 00:02:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-26 00:02:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 165 states have (on average 1.2181818181818183) internal successors, (201), 166 states have internal predecessors, (201), 33 states have call successors, (33), 18 states have call predecessors, (33), 17 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-26 00:02:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 265 transitions. [2022-11-26 00:02:35,400 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 265 transitions. Word has length 15 [2022-11-26 00:02:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:35,400 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 265 transitions. [2022-11-26 00:02:35,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:02:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 265 transitions. [2022-11-26 00:02:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-26 00:02:35,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:35,406 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:35,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:02:35,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:35,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:02:35,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1763310802, now seen corresponding path program 1 times [2022-11-26 00:02:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:02:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858365766] [2022-11-26 00:02:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:35,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:35,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:02:35,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:02:35,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:02:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:36,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:02:36,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:02:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-26 00:02:36,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:02:36,261 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:02:36,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858365766] [2022-11-26 00:02:36,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858365766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:02:36,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:02:36,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:02:36,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132836815] [2022-11-26 00:02:36,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:02:36,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:02:36,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:02:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:02:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:02:36,271 INFO L87 Difference]: Start difference. First operand 216 states and 265 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-26 00:02:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:36,369 INFO L93 Difference]: Finished difference Result 424 states and 520 transitions. [2022-11-26 00:02:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:02:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2022-11-26 00:02:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:36,376 INFO L225 Difference]: With dead ends: 424 [2022-11-26 00:02:36,379 INFO L226 Difference]: Without dead ends: 216 [2022-11-26 00:02:36,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 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 00:02:36,385 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:36,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 445 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:02:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-26 00:02:36,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-26 00:02:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 165 states have (on average 1.2121212121212122) internal successors, (200), 166 states have internal predecessors, (200), 33 states have call successors, (33), 18 states have call predecessors, (33), 17 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-26 00:02:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 264 transitions. [2022-11-26 00:02:36,436 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 264 transitions. Word has length 78 [2022-11-26 00:02:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:36,437 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 264 transitions. [2022-11-26 00:02:36,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-26 00:02:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 264 transitions. [2022-11-26 00:02:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-26 00:02:36,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:36,442 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:36,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:02:36,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:36,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:02:36,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash -251868651, now seen corresponding path program 1 times [2022-11-26 00:02:36,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:02:36,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431425456] [2022-11-26 00:02:36,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:36,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:36,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:02:36,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:02:36,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:02:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:02:37,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:02:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:02:38,024 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:02:38,024 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:02:38,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:02:38,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:02:38,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:02:38,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:02:38,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:02:38,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:38 BoogieIcfgContainer [2022-11-26 00:02:38,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:02:38,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:02:38,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:02:38,443 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:02:38,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:34" (3/4) ... [2022-11-26 00:02:38,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:02:38,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:02:38,447 INFO L158 Benchmark]: Toolchain (without parser) took 7944.97ms. Allocated memory was 79.7MB in the beginning and 138.4MB in the end (delta: 58.7MB). Free memory was 55.1MB in the beginning and 78.0MB in the end (delta: -22.9MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,447 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:02:38,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2075.17ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.9MB in the beginning and 57.1MB in the end (delta: -2.3MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.49ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 52.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,449 INFO L158 Benchmark]: Boogie Preprocessor took 107.26ms. Allocated memory is still 107.0MB. Free memory was 52.4MB in the beginning and 47.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,449 INFO L158 Benchmark]: RCFGBuilder took 1613.07ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 47.7MB in the beginning and 53.2MB in the end (delta: -5.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,450 INFO L158 Benchmark]: TraceAbstraction took 3990.37ms. Allocated memory is still 138.4MB. Free memory was 88.1MB in the beginning and 78.0MB in the end (delta: 10.0MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-11-26 00:02:38,450 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 138.4MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:02:38,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2075.17ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.9MB in the beginning and 57.1MB in the end (delta: -2.3MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.49ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 52.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.26ms. Allocated memory is still 107.0MB. Free memory was 52.4MB in the beginning and 47.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1613.07ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 47.7MB in the beginning and 53.2MB in the end (delta: -5.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3990.37ms. Allocated memory is still 138.4MB. Free memory was 88.1MB in the beginning and 78.0MB in the end (delta: 10.0MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 138.4MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4179. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4210] struct block_device *var_group1 ; [L4211] fmode_t var_virtblk_ioctl_5_p1 ; [L4212] unsigned int var_virtblk_ioctl_5_p2 ; [L4213] unsigned long var_virtblk_ioctl_5_p3 ; [L4214] struct hd_geometry *var_group2 ; [L4215] int tmp ; [L4216] int tmp___0 ; [L4217] int tmp___1 ; [L4219] LDV_IN_INTERRUPT = 1 [L4220] FCALL ldv_initialize() [L4221] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4222] CALL, EXPR init() [L4183] int tmp ; [L4185] CALL, EXPR register_blkdev(0U, "virtblk") [L4531] return __VERIFIER_nondet_int(); [L4185] RET, EXPR register_blkdev(0U, "virtblk") [L4185] major = register_blkdev(0U, "virtblk") [L4186] COND FALSE !(major < 0) [L4190] CALL, EXPR register_virtio_driver(& virtio_blk) [L4535] return __VERIFIER_nondet_int(); [L4190] RET, EXPR register_virtio_driver(& virtio_blk) [L4190] tmp = register_virtio_driver(& virtio_blk) [L4191] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4222] RET, EXPR init() [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND TRUE tmp___1 != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___1=-2147483648, virtblk_fops={12:0}, virtio_blk={15:0}] [L4229] tmp___0 = __VERIFIER_nondet_int() [L4231] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=-2147483648, virtblk_fops={12:0}, virtio_blk={15:0}] [L4232] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=-2147483648, virtblk_fops={12:0}, virtio_blk={15:0}] [L4233] CALL virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [L3912] struct gendisk *disk ; [L3913] struct virtio_blk *vblk ; [L3914] void *usr_data ; [L3915] char id_str[20U] ; [L3916] int err ; [L3917] int tmp ; [L3918] bool tmp___0 ; [L3919] int tmp___1 ; [L3920] int tmp___2 ; [L3922] EXPR bdev->bd_disk [L3922] disk = bdev->bd_disk [L3923] EXPR disk->private_data [L3923] vblk = (struct virtio_blk *)disk->private_data [L3924] COND TRUE cmd == 1447184708U [L3925] usr_data = (void *)data [L3926] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3879] struct virtio_blk *vblk ; [L3880] struct request *req ; [L3881] struct bio *bio ; [L3882] long tmp ; [L3883] long tmp___0 ; [L3884] long tmp___1 ; [L3885] long tmp___2 ; [L3886] int tmp___3 ; [L3888] EXPR disk->private_data [L3888] vblk = (struct virtio_blk *)disk->private_data [L3889] EXPR vblk->disk [L3889] EXPR (vblk->disk)->queue [L3889] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4427] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=112, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=112, virtblk_fops={12:0}, virtio_blk={15:0}] [L4427] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(arg2)=20, \old(arg3)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={-9223372036854775793:0}, arg1={-9223372036854775793:0}, arg2=20, arg3=208, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct bio))={0:0}, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4427] return ldv_malloc(sizeof(struct bio)); [L3889] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3889] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3890] CALL, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4307] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, tmp=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3890] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={-9223372036854775793:0}, id_str={-9223372036854775793:0}, id_table={13:0}, index=0, IS_ERR((void const *)bio)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, vblk={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3890] tmp___0 = IS_ERR((void const *)bio) [L3891] COND FALSE !(tmp___0 != 0L) [L3896] EXPR vblk->disk [L3896] EXPR (vblk->disk)->queue [L3896] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4283] ldv_func_ret_type___3 ldv_func_res ; [L4284] struct request *tmp ; [L4286] CALL, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4443] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=322, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=322, virtblk_fops={12:0}, virtio_blk={15:0}] [L4443] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(arg2)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={0:0}, arg1={0:0}, arg2=208, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={0:0}, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4443] return ldv_malloc(sizeof(struct request)); [L4286] RET, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4286] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4287] ldv_func_res = tmp [L4288] CALL ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4351] long tmp ; VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4357] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4358] ldv_blk_rq = 1 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4288] RET ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4289] return (ldv_func_res); VAL [\old(ldv_func_arg3)=208, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_func_arg2={0:0}, ldv_func_arg2={0:0}, ldv_func_arg3=208, ldv_func_res={0:0}, LDV_IN_INTERRUPT=1, major=0, tmp={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3896] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3896] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3897] CALL, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4307] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, tmp=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L3897] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={-9223372036854775793:0}, id_str={-9223372036854775793:0}, id_table={13:0}, index=0, IS_ERR((void const *)req)=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, vblk={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3897] tmp___2 = IS_ERR((void const *)req) [L3898] COND FALSE !(tmp___2 != 0L) [L3904] req->cmd_type = 7 [L3905] EXPR vblk->disk [L3905] EXPR (vblk->disk)->queue [L3905] EXPR vblk->disk [L3905] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4437] return __VERIFIER_nondet_int(); [L3905] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3905] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3906] return (tmp___3); VAL [\result=-2147467264, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={-9223372036854775793:0}, id_str={-9223372036854775793:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, tmp___2=0, tmp___3=-2147467264, vblk={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3926] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3926] err = virtblk_get_id(disk, (char *)(& id_str)) [L3927] COND FALSE !(err == 0) VAL [\old(cmd)=1447184708, \old(data)=37, \old(mode)=11, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={0:0}, bdev={0:0}, cmd=1447184708, data=37, disk={0:0}, err=-2147467264, features={14:0}, id_str={-9223372036854775793:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mode=11, usr_data={0:37}, vblk={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L3935] return (err); [L3935] return (err); VAL [\old(cmd)=1447184708, \old(data)=37, \old(mode)=11, \result=-2147467264, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={0:0}, bdev={0:0}, cmd=1447184708, data=37, disk={0:0}, err=-2147467264, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mode=11, usr_data={0:37}, vblk={0:0}, virtblk_fops={12:0}, virtio_blk={15:0}] [L4233] RET virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [L4244] tmp___1 = __VERIFIER_nondet_int() [L4245] COND FALSE !(tmp___1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={0:0}, var_virtblk_ioctl_5_p1=11, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=37, virtblk_fops={12:0}, virtio_blk={15:0}] [L4249] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={0:0}, var_virtblk_ioctl_5_p1=11, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=37, virtblk_fops={12:0}, virtio_blk={15:0}] [L4250] CALL fini() [L4197] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4198] FCALL unregister_virtio_driver(& virtio_blk) [L4250] RET fini() [L4252] CALL ldv_check_final_state() [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4387] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={13:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={12:0}, virtio_blk={15:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 748 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 419 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 329 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 3 NumberOfNonLiveVariables, 677 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:02:38,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b623041-6dd7-4015-8db7-35edff59e9ba/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample