./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:58:55,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:58:55,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:58:55,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:58:55,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:58:55,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:58:55,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:58:55,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:58:55,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:58:55,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:58:55,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:58:55,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:58:55,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:58:55,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:58:55,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:58:55,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:58:55,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:58:55,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:58:55,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:58:55,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:58:55,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:58:55,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:58:55,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:58:55,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:58:55,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:58:55,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:58:55,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:58:55,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:58:55,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:58:55,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:58:55,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:58:55,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:58:55,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:58:55,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:58:55,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:58:55,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:58:55,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:58:55,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:58:55,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:58:55,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:58:55,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:58:55,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 13:58:55,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:58:55,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:58:55,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:58:55,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:58:55,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:58:55,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:58:55,300 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:58:55,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:58:55,300 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:58:55,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:58:55,301 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:58:55,301 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:58:55,301 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:58:55,301 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:58:55,301 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:58:55,301 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:58:55,302 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:58:55,302 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:58:55,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:58:55,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:58:55,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:58:55,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:58:55,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:58:55,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:58:55,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:58:55,304 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:58:55,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:58:55,305 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_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2022-12-14 13:58:55,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:58:55,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:58:55,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:58:55,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:58:55,487 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:58:55,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-12-14 13:58:58,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:58:58,432 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:58:58,433 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-12-14 13:58:58,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/data/bcb50ab9a/9729d81ba9d6477f9488eed26203e08b/FLAGb7afac179 [2022-12-14 13:58:58,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/data/bcb50ab9a/9729d81ba9d6477f9488eed26203e08b [2022-12-14 13:58:58,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:58:58,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:58:58,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:58:58,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:58:58,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:58:58,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:58:58" (1/1) ... [2022-12-14 13:58:58,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279805e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:58:58, skipping insertion in model container [2022-12-14 13:58:58,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:58:58" (1/1) ... [2022-12-14 13:58:58,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:58:58,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:58:58,997 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 13:58:59,029 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 13:58:59,066 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 13:58:59,070 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 13:58:59,074 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 13:58:59,191 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:58:59,195 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:58:59,196 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:58:59,203 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:58:59,210 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:58:59,216 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:58:59,238 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 13:58:59,243 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:58:59,244 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 13:58:59,278 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 13:58:59,282 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 13:58:59,287 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 13:58:59,308 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:58:59,309 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 13:58:59,310 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 13:58:59,310 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 13:58:59,315 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:58:59,316 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 13:58:59,327 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 13:58:59,607 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-12-14 13:58:59,608 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-12-14 13:58:59,614 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:58:59,617 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 13:58:59,618 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:58:59,619 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:58:59,623 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 13:58:59,629 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 13:58:59,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,635 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:58:59,635 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:58:59,636 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 13:58:59,636 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 13:58:59,637 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 13:58:59,638 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,639 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 13:58:59,639 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 13:58:59,640 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-12-14 13:58:59,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,652 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-12-14 13:58:59,654 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,655 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 13:58:59,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,659 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:58:59,660 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-12-14 13:58:59,661 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-12-14 13:58:59,662 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 13:58:59,662 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 13:58:59,664 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 13:58:59,665 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:58:59,666 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 13:58:59,667 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 13:58:59,668 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,669 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 13:58:59,670 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:58:59,671 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 13:58:59,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,678 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:58:59,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,686 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 13:58:59,687 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:58:59,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,690 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,691 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 13:58:59,692 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 13:58:59,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,696 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 13:58:59,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,706 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 13:58:59,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,708 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:58:59,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,716 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:58:59,717 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:58:59,723 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-12-14 13:58:59,724 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-12-14 13:58:59,725 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-12-14 13:58:59,725 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-12-14 13:58:59,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,735 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 13:58:59,737 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:58:59,738 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,742 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 13:58:59,751 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:58:59,754 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,754 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:58:59,756 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:58:59,761 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 13:58:59,764 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 13:58:59,767 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:58:59,767 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 13:58:59,769 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,769 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,771 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 13:58:59,777 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:58:59,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,782 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:58:59,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,784 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 13:58:59,786 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 13:58:59,786 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 13:58:59,788 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:58:59,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,791 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,791 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,818 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,819 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,819 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,819 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:58:59,823 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:58:59,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:58:59,824 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 13:58:59,852 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 13:58:59,853 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 13:58:59,853 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 13:58:59,859 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,859 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,859 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,860 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 13:58:59,860 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,861 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,861 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,861 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,862 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,862 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,862 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,863 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:58:59,863 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:58:59,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2022-12-14 13:58:59,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:58:59,999 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:59:00,095 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 13:59:00,096 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 13:59:00,097 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 13:59:00,099 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 13:59:00,101 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 13:59:00,109 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:59:00,110 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:59:00,110 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:59:00,111 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:59:00,112 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:59:00,114 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:59:00,116 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 13:59:00,117 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:59:00,117 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 13:59:00,120 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 13:59:00,120 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 13:59:00,121 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 13:59:00,121 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:59:00,122 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 13:59:00,122 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 13:59:00,123 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 13:59:00,123 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:59:00,123 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 13:59:00,124 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 13:59:00,137 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-12-14 13:59:00,138 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-12-14 13:59:00,139 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:59:00,140 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 13:59:00,140 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:59:00,141 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 13:59:00,141 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 13:59:00,142 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 13:59:00,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,144 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:59:00,144 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:59:00,144 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 13:59:00,144 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 13:59:00,145 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 13:59:00,147 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,147 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 13:59:00,147 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 13:59:00,148 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-12-14 13:59:00,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,154 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-12-14 13:59:00,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,155 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 13:59:00,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,160 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:59:00,160 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-12-14 13:59:00,166 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-12-14 13:59:00,166 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-12-14 13:59:00,166 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 13:59:00,167 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 13:59:00,167 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:59:00,169 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 13:59:00,171 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 13:59:00,171 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,173 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 13:59:00,173 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:59:00,174 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-12-14 13:59:00,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,175 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:59:00,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,177 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 13:59:00,178 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:59:00,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,179 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,181 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 13:59:00,181 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 13:59:00,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,183 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 13:59:00,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,187 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,189 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 13:59:00,189 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,190 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 13:59:00,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,195 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:59:00,195 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:59:00,203 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-12-14 13:59:00,204 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-12-14 13:59:00,204 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-12-14 13:59:00,204 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-12-14 13:59:00,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,215 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-12-14 13:59:00,216 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:59:00,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,224 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 13:59:00,228 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 13:59:00,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,229 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:59:00,230 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 13:59:00,232 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 13:59:00,236 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-12-14 13:59:00,238 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:59:00,239 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 13:59:00,241 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,241 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,243 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 13:59:00,255 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:59:00,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,260 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 13:59:00,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,261 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-12-14 13:59:00,262 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-12-14 13:59:00,264 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-12-14 13:59:00,266 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:59:00,266 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,267 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,268 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,269 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,269 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,270 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,270 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,272 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,272 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,275 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,275 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,276 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,276 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:59:00,276 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:59:00,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:59:00,277 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 13:59:00,282 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 13:59:00,283 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 13:59:00,283 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 13:59:00,286 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,287 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,287 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,287 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 13:59:00,288 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,288 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,288 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,288 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,288 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,289 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,289 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,289 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 13:59:00,289 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 13:59:00,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2022-12-14 13:59:00,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:59:00,336 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:59:00,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00 WrapperNode [2022-12-14 13:59:00,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:59:00,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:59:00,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:59:00,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:59:00,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,487 INFO L138 Inliner]: procedures = 269, calls = 1577, calls flagged for inlining = 115, calls inlined = 90, statements flattened = 3647 [2022-12-14 13:59:00,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:59:00,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:59:00,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:59:00,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:59:00,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:59:00,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:59:00,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:59:00,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:59:00,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (1/1) ... [2022-12-14 13:59:00,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:59:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:00,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:59:00,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:59:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2022-12-14 13:59:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2022-12-14 13:59:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2022-12-14 13:59:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2022-12-14 13:59:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2022-12-14 13:59:00,725 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2022-12-14 13:59:00,725 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-12-14 13:59:00,726 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-12-14 13:59:00,726 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2022-12-14 13:59:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:59:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2022-12-14 13:59:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2022-12-14 13:59:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:59:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 13:59:00,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 13:59:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2022-12-14 13:59:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 13:59:00,731 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 13:59:00,731 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 13:59:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2022-12-14 13:59:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2022-12-14 13:59:00,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2022-12-14 13:59:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-12-14 13:59:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2022-12-14 13:59:00,734 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 13:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 13:59:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-12-14 13:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-12-14 13:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2022-12-14 13:59:00,737 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2022-12-14 13:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:59:00,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:59:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2022-12-14 13:59:00,738 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2022-12-14 13:59:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 13:59:00,738 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 13:59:01,268 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:59:01,271 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:59:03,849 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:59:04,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:59:04,627 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:59:04,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:59:04 BoogieIcfgContainer [2022-12-14 13:59:04,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:59:04,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:59:04,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:59:04,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:59:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:58:58" (1/3) ... [2022-12-14 13:59:04,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a465a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:59:04, skipping insertion in model container [2022-12-14 13:59:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:59:00" (2/3) ... [2022-12-14 13:59:04,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a465a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:59:04, skipping insertion in model container [2022-12-14 13:59:04,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:59:04" (3/3) ... [2022-12-14 13:59:04,640 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-12-14 13:59:04,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:59:04,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:59:04,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:59:04,738 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;@1c714ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:59:04,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:59:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 1011 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 657 states have internal predecessors, (854), 284 states have call successors, (284), 95 states have call predecessors, (284), 95 states have return successors, (284), 278 states have call predecessors, (284), 284 states have call successors, (284) [2022-12-14 13:59:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:59:04,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:04,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:04,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1505230679, now seen corresponding path program 1 times [2022-12-14 13:59:04,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:04,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148429883] [2022-12-14 13:59:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:04,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:05,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148429883] [2022-12-14 13:59:05,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148429883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:05,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:05,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:59:05,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999681436] [2022-12-14 13:59:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:05,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:05,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:05,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:05,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:05,142 INFO L87 Difference]: Start difference. First operand has 1011 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 657 states have internal predecessors, (854), 284 states have call successors, (284), 95 states have call predecessors, (284), 95 states have return successors, (284), 278 states have call predecessors, (284), 284 states have call successors, (284) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:08,265 INFO L93 Difference]: Finished difference Result 2748 states and 3865 transitions. [2022-12-14 13:59:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 13:59:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:08,283 INFO L225 Difference]: With dead ends: 2748 [2022-12-14 13:59:08,283 INFO L226 Difference]: Without dead ends: 1728 [2022-12-14 13:59:08,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:08,292 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 1004 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:08,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 2678 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 13:59:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-12-14 13:59:08,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1714. [2022-12-14 13:59:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1071 states have (on average 1.3529411764705883) internal successors, (1449), 1114 states have internal predecessors, (1449), 474 states have call successors, (474), 169 states have call predecessors, (474), 168 states have return successors, (468), 454 states have call predecessors, (468), 468 states have call successors, (468) [2022-12-14 13:59:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2391 transitions. [2022-12-14 13:59:08,462 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2391 transitions. Word has length 12 [2022-12-14 13:59:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:08,463 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2391 transitions. [2022-12-14 13:59:08,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2391 transitions. [2022-12-14 13:59:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:59:08,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:08,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:08,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:59:08,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash 553787704, now seen corresponding path program 1 times [2022-12-14 13:59:08,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:08,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38140411] [2022-12-14 13:59:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:08,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:08,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:08,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38140411] [2022-12-14 13:59:08,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38140411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:08,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:08,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:59:08,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219083504] [2022-12-14 13:59:08,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:08,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:08,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:08,602 INFO L87 Difference]: Start difference. First operand 1714 states and 2391 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:11,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:12,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:12,914 INFO L93 Difference]: Finished difference Result 2102 states and 2870 transitions. [2022-12-14 13:59:12,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:12,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 13:59:12,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:12,926 INFO L225 Difference]: With dead ends: 2102 [2022-12-14 13:59:12,926 INFO L226 Difference]: Without dead ends: 2098 [2022-12-14 13:59:12,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:12,929 INFO L413 NwaCegarLoop]: 1400 mSDtfsCounter, 1053 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:12,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2102 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 13:59:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-12-14 13:59:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2096. [2022-12-14 13:59:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1291 states have (on average 1.3292021688613478) internal successors, (1716), 1342 states have internal predecessors, (1716), 576 states have call successors, (576), 229 states have call predecessors, (576), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2022-12-14 13:59:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2864 transitions. [2022-12-14 13:59:13,025 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2864 transitions. Word has length 20 [2022-12-14 13:59:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:13,025 INFO L495 AbstractCegarLoop]: Abstraction has 2096 states and 2864 transitions. [2022-12-14 13:59:13,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2864 transitions. [2022-12-14 13:59:13,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 13:59:13,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:13,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:13,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:59:13,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:13,027 INFO L85 PathProgramCache]: Analyzing trace with hash -12997779, now seen corresponding path program 1 times [2022-12-14 13:59:13,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:13,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357063150] [2022-12-14 13:59:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:13,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:13,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:13,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357063150] [2022-12-14 13:59:13,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357063150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:13,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:13,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:59:13,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513309397] [2022-12-14 13:59:13,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:13,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:13,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:13,137 INFO L87 Difference]: Start difference. First operand 2096 states and 2864 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:14,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:15,598 INFO L93 Difference]: Finished difference Result 2098 states and 2865 transitions. [2022-12-14 13:59:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 13:59:15,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:15,605 INFO L225 Difference]: With dead ends: 2098 [2022-12-14 13:59:15,605 INFO L226 Difference]: Without dead ends: 2095 [2022-12-14 13:59:15,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:15,607 INFO L413 NwaCegarLoop]: 1219 mSDtfsCounter, 1383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:15,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1219 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 13:59:15,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2022-12-14 13:59:15,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2095. [2022-12-14 13:59:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1291 states have (on average 1.3284275755228505) internal successors, (1715), 1341 states have internal predecessors, (1715), 575 states have call successors, (575), 229 states have call predecessors, (575), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2022-12-14 13:59:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2862 transitions. [2022-12-14 13:59:15,671 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2862 transitions. Word has length 21 [2022-12-14 13:59:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:15,671 INFO L495 AbstractCegarLoop]: Abstraction has 2095 states and 2862 transitions. [2022-12-14 13:59:15,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2862 transitions. [2022-12-14 13:59:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 13:59:15,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:15,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:15,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:59:15,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:15,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:15,673 INFO L85 PathProgramCache]: Analyzing trace with hash -403473701, now seen corresponding path program 1 times [2022-12-14 13:59:15,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:15,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57109834] [2022-12-14 13:59:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:15,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:15,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:15,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57109834] [2022-12-14 13:59:15,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57109834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:15,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:15,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:59:15,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268454503] [2022-12-14 13:59:15,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:15,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:15,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:15,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:15,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:15,797 INFO L87 Difference]: Start difference. First operand 2095 states and 2862 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:17,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:17,257 INFO L93 Difference]: Finished difference Result 2097 states and 2863 transitions. [2022-12-14 13:59:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 13:59:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:17,265 INFO L225 Difference]: With dead ends: 2097 [2022-12-14 13:59:17,265 INFO L226 Difference]: Without dead ends: 2094 [2022-12-14 13:59:17,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:17,267 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 1380 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:17,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1217 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 13:59:17,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2022-12-14 13:59:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2094. [2022-12-14 13:59:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1291 states have (on average 1.3276529821843532) internal successors, (1714), 1340 states have internal predecessors, (1714), 574 states have call successors, (574), 229 states have call predecessors, (574), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2022-12-14 13:59:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2860 transitions. [2022-12-14 13:59:17,392 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2860 transitions. Word has length 22 [2022-12-14 13:59:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:17,393 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2860 transitions. [2022-12-14 13:59:17,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2860 transitions. [2022-12-14 13:59:17,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 13:59:17,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:17,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:59:17,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:59:17,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:17,396 INFO L85 PathProgramCache]: Analyzing trace with hash 376679472, now seen corresponding path program 1 times [2022-12-14 13:59:17,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:17,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881696267] [2022-12-14 13:59:17,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:17,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:17,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:17,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881696267] [2022-12-14 13:59:17,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881696267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:17,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:17,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:59:17,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245998484] [2022-12-14 13:59:17,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:17,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:17,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:17,492 INFO L87 Difference]: Start difference. First operand 2094 states and 2860 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:20,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:22,298 INFO L93 Difference]: Finished difference Result 4185 states and 5714 transitions. [2022-12-14 13:59:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 13:59:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:22,311 INFO L225 Difference]: With dead ends: 4185 [2022-12-14 13:59:22,312 INFO L226 Difference]: Without dead ends: 4158 [2022-12-14 13:59:22,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:22,314 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 1373 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:22,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 2712 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 13:59:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2022-12-14 13:59:22,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 4147. [2022-12-14 13:59:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 2554 states have (on average 1.326938136256852) internal successors, (3389), 2649 states have internal predecessors, (3389), 1137 states have call successors, (1137), 456 states have call predecessors, (1137), 455 states have return successors, (1135), 1095 states have call predecessors, (1135), 1135 states have call successors, (1135) [2022-12-14 13:59:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 5661 transitions. [2022-12-14 13:59:22,475 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 5661 transitions. Word has length 23 [2022-12-14 13:59:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:22,475 INFO L495 AbstractCegarLoop]: Abstraction has 4147 states and 5661 transitions. [2022-12-14 13:59:22,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:59:22,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 5661 transitions. [2022-12-14 13:59:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 13:59:22,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:22,477 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 13:59:22,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:59:22,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1329100715, now seen corresponding path program 1 times [2022-12-14 13:59:22,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:22,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4957585] [2022-12-14 13:59:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:22,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:22,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4957585] [2022-12-14 13:59:22,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4957585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:22,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:22,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:59:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388421210] [2022-12-14 13:59:22,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:59:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:59:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:59:22,635 INFO L87 Difference]: Start difference. First operand 4147 states and 5661 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 13:59:24,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:25,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:29,263 INFO L93 Difference]: Finished difference Result 8311 states and 11339 transitions. [2022-12-14 13:59:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:59:29,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-12-14 13:59:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:29,275 INFO L225 Difference]: With dead ends: 8311 [2022-12-14 13:59:29,275 INFO L226 Difference]: Without dead ends: 4159 [2022-12-14 13:59:29,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:59:29,285 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 14 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:29,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3658 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 13:59:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4159 states. [2022-12-14 13:59:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4159 to 4145. [2022-12-14 13:59:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 2554 states have (on average 1.3257635082223962) internal successors, (3386), 2649 states have internal predecessors, (3386), 1136 states have call successors, (1136), 455 states have call predecessors, (1136), 454 states have return successors, (1134), 1094 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-12-14 13:59:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 5656 transitions. [2022-12-14 13:59:29,456 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 5656 transitions. Word has length 40 [2022-12-14 13:59:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:29,456 INFO L495 AbstractCegarLoop]: Abstraction has 4145 states and 5656 transitions. [2022-12-14 13:59:29,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 13:59:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 5656 transitions. [2022-12-14 13:59:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:59:29,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:29,460 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 13:59:29,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:59:29,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:29,461 INFO L85 PathProgramCache]: Analyzing trace with hash 773724177, now seen corresponding path program 1 times [2022-12-14 13:59:29,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:29,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563409761] [2022-12-14 13:59:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:29,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:29,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:29,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563409761] [2022-12-14 13:59:29,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563409761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:59:29,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:59:29,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:59:29,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234643978] [2022-12-14 13:59:29,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:59:29,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:59:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:59:29,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:59:29,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:29,606 INFO L87 Difference]: Start difference. First operand 4145 states and 5656 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 13:59:32,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:59:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:59:33,864 INFO L93 Difference]: Finished difference Result 8292 states and 11317 transitions. [2022-12-14 13:59:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:59:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-12-14 13:59:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:59:33,876 INFO L225 Difference]: With dead ends: 8292 [2022-12-14 13:59:33,877 INFO L226 Difference]: Without dead ends: 4148 [2022-12-14 13:59:33,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:59:33,885 INFO L413 NwaCegarLoop]: 1218 mSDtfsCounter, 0 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:59:33,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2435 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 13:59:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2022-12-14 13:59:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 4148. [2022-12-14 13:59:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4148 states, 2557 states have (on average 1.3253813062182245) internal successors, (3389), 2652 states have internal predecessors, (3389), 1136 states have call successors, (1136), 455 states have call predecessors, (1136), 454 states have return successors, (1134), 1094 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-12-14 13:59:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4148 states to 4148 states and 5659 transitions. [2022-12-14 13:59:34,031 INFO L78 Accepts]: Start accepts. Automaton has 4148 states and 5659 transitions. Word has length 45 [2022-12-14 13:59:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:59:34,031 INFO L495 AbstractCegarLoop]: Abstraction has 4148 states and 5659 transitions. [2022-12-14 13:59:34,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 13:59:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4148 states and 5659 transitions. [2022-12-14 13:59:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 13:59:34,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:59:34,033 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 13:59:34,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:59:34,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:59:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:59:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1493001081, now seen corresponding path program 1 times [2022-12-14 13:59:34,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:59:34,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123424071] [2022-12-14 13:59:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:59:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:34,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:59:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123424071] [2022-12-14 13:59:34,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123424071] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:59:34,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115606083] [2022-12-14 13:59:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:59:34,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:34,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:34,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:34,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:59:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:59:34,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:59:34,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:34,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:34,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115606083] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:34,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087655813] [2022-12-14 13:59:34,736 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 13:59:34,736 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:59:34,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:59:34,744 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:59:34,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:59:37,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 536 [2022-12-14 13:59:38,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:59:38,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 542 [2022-12-14 14:00:49,783 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:01:41,615 WARN L233 SmtUtils]: Spent 51.60s on a formula simplification. DAG size of input: 2464 DAG size of output: 2161 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:01:47,090 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 575 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:01:52,881 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 582 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:01:58,415 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 585 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:04,748 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 587 DAG size of output: 422 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:11,249 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 590 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:16,645 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 593 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:22,407 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 596 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:28,082 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 573 DAG size of output: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:34,582 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 584 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:40,569 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 586 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:02:46,888 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 574 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:03:02,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2087655813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:03:02,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:03:02,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 14:03:02,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607493503] [2022-12-14 14:03:02,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:03:02,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:03:02,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:03:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:03:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:03:02,831 INFO L87 Difference]: Start difference. First operand 4148 states and 5659 transitions. Second operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 14:04:00,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:02,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:03,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:05,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:18,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:19,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:21,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:25,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:26,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:28,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:32,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:32,325 INFO L93 Difference]: Finished difference Result 8665 states and 11944 transitions. [2022-12-14 14:04:32,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 14:04:32,327 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-12-14 14:04:32,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:32,340 INFO L225 Difference]: With dead ends: 8665 [2022-12-14 14:04:32,340 INFO L226 Difference]: Without dead ends: 4518 [2022-12-14 14:04:32,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 156.6s TimeCoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 14:04:32,348 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 329 mSDsluCounter, 10964 mSDsCounter, 0 mSdLazyCounter, 6066 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 12150 SdHoareTripleChecker+Invalid, 6105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 6066 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:32,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 12150 Invalid, 6105 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [37 Valid, 6066 Invalid, 2 Unknown, 0 Unchecked, 65.2s Time] [2022-12-14 14:04:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-12-14 14:04:32,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4329. [2022-12-14 14:04:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 2728 states have (on average 1.3566715542521994) internal successors, (3701), 2825 states have internal predecessors, (3701), 1146 states have call successors, (1146), 455 states have call predecessors, (1146), 454 states have return successors, (1144), 1104 states have call predecessors, (1144), 1144 states have call successors, (1144) [2022-12-14 14:04:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 5991 transitions. [2022-12-14 14:04:32,721 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 5991 transitions. Word has length 46 [2022-12-14 14:04:32,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:32,721 INFO L495 AbstractCegarLoop]: Abstraction has 4329 states and 5991 transitions. [2022-12-14 14:04:32,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 14:04:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 5991 transitions. [2022-12-14 14:04:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 14:04:32,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:32,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:04:32,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:04:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:32,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:32,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash -54816372, now seen corresponding path program 1 times [2022-12-14 14:04:32,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:32,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254501155] [2022-12-14 14:04:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:32,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:04:33,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:33,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254501155] [2022-12-14 14:04:33,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254501155] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:04:33,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398398913] [2022-12-14 14:04:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:33,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:33,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:04:33,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:04:33,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:04:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:33,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:04:33,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:04:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:04:33,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:04:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:04:33,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398398913] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:04:33,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372070030] [2022-12-14 14:04:33,677 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 14:04:33,677 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:04:33,677 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:04:33,677 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:04:33,677 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:04:36,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 536 [2022-12-14 14:04:37,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:04:37,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 542 [2022-12-14 14:06:26,250 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:06:45,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1372070030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:06:45,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:06:45,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 14:06:45,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476212871] [2022-12-14 14:06:45,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:06:45,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:06:45,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:06:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:06:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:06:45,467 INFO L87 Difference]: Start difference. First operand 4329 states and 5991 transitions. Second operand has 25 states, 25 states have (on average 1.48) internal successors, (37), 24 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 14:07:17,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:07:20,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:07:22,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:07:24,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:07:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:07:31,920 INFO L93 Difference]: Finished difference Result 10762 states and 14718 transitions. [2022-12-14 14:07:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 14:07:31,921 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 24 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2022-12-14 14:07:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:07:31,949 INFO L225 Difference]: With dead ends: 10762 [2022-12-14 14:07:31,949 INFO L226 Difference]: Without dead ends: 6615 [2022-12-14 14:07:31,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 14:07:31,957 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 1255 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 6377 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 5284 SdHoareTripleChecker+Invalid, 6537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 6377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:07:31,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 5284 Invalid, 6537 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [160 Valid, 6377 Invalid, 0 Unknown, 0 Unchecked, 35.1s Time] [2022-12-14 14:07:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2022-12-14 14:07:33,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6364. [2022-12-14 14:07:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6364 states, 3916 states have (on average 1.3225229826353422) internal successors, (5179), 4074 states have internal predecessors, (5179), 1728 states have call successors, (1728), 720 states have call predecessors, (1728), 719 states have return successors, (1730), 1651 states have call predecessors, (1730), 1726 states have call successors, (1730) [2022-12-14 14:07:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 8637 transitions. [2022-12-14 14:07:33,922 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 8637 transitions. Word has length 51 [2022-12-14 14:07:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:07:33,922 INFO L495 AbstractCegarLoop]: Abstraction has 6364 states and 8637 transitions. [2022-12-14 14:07:33,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 24 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 14:07:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 8637 transitions. [2022-12-14 14:07:33,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 14:07:33,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:07:33,927 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:07:33,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 14:07:34,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 14:07:34,129 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:07:34,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:07:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash -367449015, now seen corresponding path program 1 times [2022-12-14 14:07:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:07:34,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900833229] [2022-12-14 14:07:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:34,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:07:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:07:34,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:07:34,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900833229] [2022-12-14 14:07:34,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900833229] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:07:34,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316164679] [2022-12-14 14:07:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:34,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:34,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:07:34,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:07:34,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5bf48da-cb79-4658-b092-186959424cdd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:07:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:34,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:07:34,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:07:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:07:34,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:07:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:07:34,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316164679] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:07:34,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [382539492] [2022-12-14 14:07:34,912 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-12-14 14:07:34,912 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:07:34,912 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:07:34,912 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:07:34,912 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:07:37,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 536 [2022-12-14 14:07:37,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:37,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:07:38,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 542 [2022-12-14 14:08:47,591 INFO L197 IcfgInterpreter]: Interpreting procedure ida_ioctl with input of size 312 for LOIs [2022-12-14 14:08:50,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:50,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:50,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:50,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:51,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:51,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:52,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:52,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:53,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:53,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:53,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 14:08:53,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 14:08:53,902 INFO L197 IcfgInterpreter]: Interpreting procedure get_host with input of size 312 for LOIs [2022-12-14 14:08:54,036 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 294 for LOIs [2022-12-14 14:08:54,086 INFO L197 IcfgInterpreter]: Interpreting procedure get_drv with input of size 311 for LOIs [2022-12-14 14:08:54,222 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_lock_cpqarray_mutex with input of size 291 for LOIs [2022-12-14 14:08:54,376 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:09:48,272 WARN L233 SmtUtils]: Spent 53.63s on a formula simplification. DAG size of input: 2464 DAG size of output: 2161 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:53,429 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 575 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:09:59,384 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 582 DAG size of output: 417 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:05,140 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 585 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:11,302 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 587 DAG size of output: 422 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:17,299 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 590 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:24,541 WARN L233 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 593 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:30,740 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 596 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:42,318 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 584 DAG size of output: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:48,590 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 586 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:10:54,899 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 574 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:11,124 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 572 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:11:38,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [382539492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:11:38,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:11:38,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [4, 4, 4] total 48 [2022-12-14 14:11:38,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295333526] [2022-12-14 14:11:38,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:11:38,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-14 14:11:38,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:11:38,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-14 14:11:38,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2089, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 14:11:38,034 INFO L87 Difference]: Start difference. First operand 6364 states and 8637 transitions. Second operand has 43 states, 36 states have (on average 1.25) internal successors, (45), 34 states have internal predecessors, (45), 6 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:12:49,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:12:51,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:12:52,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 14:12:55,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []