./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/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_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 23:30:10,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:30:10,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:30:10,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:30:10,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:30:10,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:30:10,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:30:10,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:30:10,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:30:10,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:30:10,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:30:10,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:30:10,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:30:10,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:30:10,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:30:10,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:30:10,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:30:10,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:30:10,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:30:10,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:30:10,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:30:10,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:30:10,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:30:10,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:30:10,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:30:10,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:30:10,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:30:10,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:30:10,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:30:10,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:30:10,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:30:10,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:30:10,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:30:10,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:30:10,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:30:10,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:30:10,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:30:10,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:30:10,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:30:10,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:30:10,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:30:10,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:30:10,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:30:10,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:30:10,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:30:10,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:30:10,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:30:10,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:30:10,703 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:30:10,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:30:10,704 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:30:10,704 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:30:10,704 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:30:10,704 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:30:10,705 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:30:10,705 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:30:10,705 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:30:10,705 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:30:10,706 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:30:10,706 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:30:10,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:30:10,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:30:10,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:30:10,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:30:10,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:30:10,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:30:10,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:30:10,708 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:30:10,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:30:10,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:30:10,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:30:10,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:10,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:30:10,710 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:30:10,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:30:10,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:30:10,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:30:10,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:30:10,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:30:10,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:30:10,712 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_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2022-11-25 23:30:10,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:30:11,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:30:11,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:30:11,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:30:11,025 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:30:11,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-11-25 23:30:14,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:30:15,091 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:30:15,092 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-11-25 23:30:15,139 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/data/c530fe885/305916417a5c44afb3ccdb9666ef50fc/FLAG021445af1 [2022-11-25 23:30:15,157 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/data/c530fe885/305916417a5c44afb3ccdb9666ef50fc [2022-11-25 23:30:15,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:30:15,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:30:15,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:15,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:30:15,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:30:15,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c20bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15, skipping insertion in model container [2022-11-25 23:30:15,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:30:15,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:30:16,287 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:30:16,358 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:30:16,439 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:30:16,482 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:30:16,490 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:30:16,656 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:30:16,663 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:30:16,664 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:30:16,673 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:30:16,681 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:30:16,689 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:30:16,713 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:30:16,721 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:30:16,726 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:30:16,773 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:30:16,778 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:30:16,783 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:30:16,806 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:16,807 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:30:16,808 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:30:16,809 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:30:16,815 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:16,815 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:30:16,827 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:30:17,152 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-11-25 23:30:17,153 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-11-25 23:30:17,161 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,164 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 23:30:17,165 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,167 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,172 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 23:30:17,177 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:30:17,183 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,183 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:30:17,184 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:30:17,185 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:30:17,186 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 23:30:17,186 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-11-25 23:30:17,188 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,189 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:30:17,190 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:30:17,191 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 23:30:17,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,204 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,205 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 23:30:17,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,209 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 23:30:17,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,215 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:30:17,216 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 23:30:17,218 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 23:30:17,219 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:30:17,219 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:30:17,221 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 23:30:17,224 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:17,225 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:30:17,227 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:30:17,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,230 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:30:17,232 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:30:17,232 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:30:17,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,241 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:17,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,249 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:30:17,251 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:30:17,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,255 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,256 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,257 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:30:17,258 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:30:17,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,264 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:30:17,266 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,278 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:30:17,280 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,282 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:17,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,291 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:17,292 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:17,301 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 23:30:17,303 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 23:30:17,305 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 23:30:17,305 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 23:30:17,314 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,319 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,321 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,326 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:30:17,341 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:17,342 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,346 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 23:30:17,359 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:17,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,374 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:17,376 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:17,389 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:30:17,399 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:30:17,408 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:17,409 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:30:17,412 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,413 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,416 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-11-25 23:30:17,430 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:30:17,431 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,433 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,438 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,441 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:17,442 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,447 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:30:17,452 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:30:17,453 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:30:17,456 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:30:17,458 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,459 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,461 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,472 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,473 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,479 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,483 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,483 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,483 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,484 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,488 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:30:17,489 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,490 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-11-25 23:30:17,524 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 23:30:17,525 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 23:30:17,526 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 23:30:17,541 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,544 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,546 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,548 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:30:17,549 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,551 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,551 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,552 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,554 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,555 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,556 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,557 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:17,562 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:17,566 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2022-11-25 23:30:17,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:17,705 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:30:17,812 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:30:17,814 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:30:17,815 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 23:30:17,819 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 23:30:17,821 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-11-25 23:30:17,833 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:30:17,834 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:30:17,835 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:30:17,837 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:30:17,838 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:30:17,840 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:30:17,843 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:30:17,845 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:30:17,845 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:30:17,849 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:30:17,850 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:30:17,850 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:30:17,851 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:17,852 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:30:17,852 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:30:17,853 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 23:30:17,854 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:17,855 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:30:17,855 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:30:17,877 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-11-25 23:30:17,881 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-11-25 23:30:17,883 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,886 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 23:30:17,887 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,889 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 23:30:17,891 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 23:30:17,892 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:30:17,896 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,897 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:30:17,898 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:30:17,898 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:30:17,899 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 23:30:17,900 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-11-25 23:30:17,959 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:17,959 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:30:17,960 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:30:17,960 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-25 23:30:17,966 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,972 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-25 23:30:17,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,988 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 23:30:17,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:17,998 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:30:17,999 WARN L623 FunctionHandler]: Unknown extern function blk_init_queue [2022-11-25 23:30:18,025 WARN L623 FunctionHandler]: Unknown extern function blk_queue_bounce_limit [2022-11-25 23:30:18,029 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segments [2022-11-25 23:30:18,029 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:30:18,030 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 23:30:18,032 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:18,035 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:30:18,064 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:30:18,064 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,073 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 23:30:18,073 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:30:18,074 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-25 23:30:18,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,077 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:18,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,087 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:30:18,088 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:30:18,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,107 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,110 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:30:18,111 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:30:18,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,113 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:30:18,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,121 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:30:18,122 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,123 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:30:18,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,131 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:18,132 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:18,147 WARN L623 FunctionHandler]: Unknown extern function blk_peek_request [2022-11-25 23:30:18,148 WARN L623 FunctionHandler]: Unknown extern function blk_start_request [2022-11-25 23:30:18,149 WARN L623 FunctionHandler]: Unknown extern function sg_init_table [2022-11-25 23:30:18,149 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_sg [2022-11-25 23:30:18,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,164 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,169 WARN L623 FunctionHandler]: Unknown extern function __blk_end_request_all [2022-11-25 23:30:18,170 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:18,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,183 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 23:30:18,191 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:30:18,193 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,194 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:18,195 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:30:18,199 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:30:18,207 WARN L623 FunctionHandler]: Unknown extern function memdup_user [2022-11-25 23:30:18,211 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:18,214 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:30:18,227 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,227 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,231 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-11-25 23:30:18,241 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:30:18,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,246 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,247 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,249 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:30:18,250 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,251 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-25 23:30:18,253 WARN L623 FunctionHandler]: Unknown extern function blk_queue_logical_block_size [2022-11-25 23:30:18,257 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-25 23:30:18,259 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:30:18,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,262 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,264 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,266 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,268 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,329 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,330 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,330 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,331 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,331 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:30:18,331 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:30:18,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:30:18,333 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-11-25 23:30:18,339 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-11-25 23:30:18,340 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-11-25 23:30:18,341 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-11-25 23:30:18,345 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,352 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,352 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,353 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 23:30:18,353 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,354 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,354 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,354 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,355 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,356 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,356 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,357 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 23:30:18,357 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:30:18,357 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2022-11-25 23:30:18,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:18,494 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:30:18,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18 WrapperNode [2022-11-25 23:30:18,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:18,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:18,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:30:18,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:30:18,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,786 INFO L138 Inliner]: procedures = 269, calls = 1577, calls flagged for inlining = 115, calls inlined = 90, statements flattened = 3647 [2022-11-25 23:30:18,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:18,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:30:18,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:30:18,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:30:18,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:18,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:19,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:19,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:19,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:30:19,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:30:19,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:30:19,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:30:19,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (1/1) ... [2022-11-25 23:30:19,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:30:19,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:30:19,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:30:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2022-11-25 23:30:19,268 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2022-11-25 23:30:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2022-11-25 23:30:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2022-11-25 23:30:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-25 23:30:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-25 23:30:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:30:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 23:30:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2022-11-25 23:30:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2022-11-25 23:30:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2022-11-25 23:30:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2022-11-25 23:30:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2022-11-25 23:30:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2022-11-25 23:30:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:30:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:30:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2022-11-25 23:30:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2022-11-25 23:30:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2022-11-25 23:30:19,277 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2022-11-25 23:30:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-25 23:30:19,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-25 23:30:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2022-11-25 23:30:19,278 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2022-11-25 23:30:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2022-11-25 23:30:19,278 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2022-11-25 23:30:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-25 23:30:19,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-25 23:30:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 23:30:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 23:30:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-25 23:30:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-25 23:30:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 23:30:19,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 23:30:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 23:30:19,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 23:30:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-25 23:30:19,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-25 23:30:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-25 23:30:19,281 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-25 23:30:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 23:30:19,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 23:30:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2022-11-25 23:30:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2022-11-25 23:30:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2022-11-25 23:30:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2022-11-25 23:30:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:30:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:30:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2022-11-25 23:30:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2022-11-25 23:30:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2022-11-25 23:30:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2022-11-25 23:30:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-25 23:30:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-25 23:30:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 23:30:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 23:30:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 23:30:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 23:30:19,288 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2022-11-25 23:30:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2022-11-25 23:30:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-25 23:30:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-25 23:30:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:30:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:30:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2022-11-25 23:30:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2022-11-25 23:30:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-25 23:30:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-25 23:30:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:30:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2022-11-25 23:30:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2022-11-25 23:30:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2022-11-25 23:30:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2022-11-25 23:30:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:30:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 23:30:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 23:30:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-25 23:30:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-25 23:30:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-25 23:30:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-25 23:30:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2022-11-25 23:30:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2022-11-25 23:30:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2022-11-25 23:30:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2022-11-25 23:30:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2022-11-25 23:30:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2022-11-25 23:30:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:30:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:30:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2022-11-25 23:30:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2022-11-25 23:30:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-25 23:30:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-25 23:30:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:30:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:30:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 23:30:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 23:30:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-25 23:30:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-25 23:30:19,298 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2022-11-25 23:30:19,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2022-11-25 23:30:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 23:30:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 23:30:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 23:30:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 23:30:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2022-11-25 23:30:19,299 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2022-11-25 23:30:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 23:30:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 23:30:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 23:30:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 23:30:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-25 23:30:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-25 23:30:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2022-11-25 23:30:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2022-11-25 23:30:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 23:30:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 23:30:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:30:19,302 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:30:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2022-11-25 23:30:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2022-11-25 23:30:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:30:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2022-11-25 23:30:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2022-11-25 23:30:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2022-11-25 23:30:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2022-11-25 23:30:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2022-11-25 23:30:19,304 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2022-11-25 23:30:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 23:30:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 23:30:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2022-11-25 23:30:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2022-11-25 23:30:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2022-11-25 23:30:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2022-11-25 23:30:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2022-11-25 23:30:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2022-11-25 23:30:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2022-11-25 23:30:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2022-11-25 23:30:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2022-11-25 23:30:19,307 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2022-11-25 23:30:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:30:19,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:30:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-25 23:30:19,307 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-25 23:30:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-25 23:30:19,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-25 23:30:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:30:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 23:30:19,308 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 23:30:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-25 23:30:19,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-25 23:30:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2022-11-25 23:30:19,309 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2022-11-25 23:30:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:30:19,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:30:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:30:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:30:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:30:19,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:30:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:30:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:30:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:30:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2022-11-25 23:30:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2022-11-25 23:30:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 23:30:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 23:30:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:30:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 23:30:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-25 23:30:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-25 23:30:19,313 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2022-11-25 23:30:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2022-11-25 23:30:19,314 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2022-11-25 23:30:19,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2022-11-25 23:30:19,314 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2022-11-25 23:30:19,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2022-11-25 23:30:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-25 23:30:19,315 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-25 23:30:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2022-11-25 23:30:19,315 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2022-11-25 23:30:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-25 23:30:19,315 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-25 23:30:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 23:30:19,316 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 23:30:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:30:19,316 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:30:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:30:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:30:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-25 23:30:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-25 23:30:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:30:19,317 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-25 23:30:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-25 23:30:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-25 23:30:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-25 23:30:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2022-11-25 23:30:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2022-11-25 23:30:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:30:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:30:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2022-11-25 23:30:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2022-11-25 23:30:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:30:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:30:20,382 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:30:20,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:30:25,216 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:30:26,899 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:30:26,900 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:30:26,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:26 BoogieIcfgContainer [2022-11-25 23:30:26,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:30:26,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:30:26,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:30:26,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:30:26,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:30:15" (1/3) ... [2022-11-25 23:30:26,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de4f54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:26, skipping insertion in model container [2022-11-25 23:30:26,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:18" (2/3) ... [2022-11-25 23:30:26,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de4f54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:26, skipping insertion in model container [2022-11-25 23:30:26,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:26" (3/3) ... [2022-11-25 23:30:26,916 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2022-11-25 23:30:26,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:30:26,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:30:27,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:30:27,036 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;@69d219d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:30:27,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:30:27,046 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) [2022-11-25 23:30:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:30:27,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:27,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:27,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 395772537, now seen corresponding path program 1 times [2022-11-25 23:30:27,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:27,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79100062] [2022-11-25 23:30:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:27,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:27,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79100062] [2022-11-25 23:30:27,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79100062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:27,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:27,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:27,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872351203] [2022-11-25 23:30:27,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:27,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:27,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:27,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:27,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:27,833 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) [2022-11-25 23:30:30,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:32,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:34,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:35,115 INFO L93 Difference]: Finished difference Result 2603 states and 3669 transitions. [2022-11-25 23:30:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:35,118 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 [2022-11-25 23:30:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:35,147 INFO L225 Difference]: With dead ends: 2603 [2022-11-25 23:30:35,147 INFO L226 Difference]: Without dead ends: 1585 [2022-11-25 23:30:35,158 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 [2022-11-25 23:30:35,162 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 801 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:35,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2694 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 23:30:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-11-25 23:30:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1571. [2022-11-25 23:30:35,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 986 states have (on average 1.3580121703853956) internal successors, (1339), 1026 states have internal predecessors, (1339), 430 states have call successors, (430), 155 states have call predecessors, (430), 154 states have return successors, (430), 413 states have call predecessors, (430), 424 states have call successors, (430) [2022-11-25 23:30:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2199 transitions. [2022-11-25 23:30:35,402 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2199 transitions. Word has length 12 [2022-11-25 23:30:35,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:35,404 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2199 transitions. [2022-11-25 23:30:35,405 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) [2022-11-25 23:30:35,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2199 transitions. [2022-11-25 23:30:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 23:30:35,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:35,412 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] [2022-11-25 23:30:35,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:30:35,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:35,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash -22978494, now seen corresponding path program 1 times [2022-11-25 23:30:35,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:35,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908443648] [2022-11-25 23:30:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:35,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:35,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908443648] [2022-11-25 23:30:35,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908443648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:35,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:35,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:35,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323075889] [2022-11-25 23:30:35,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:35,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:35,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:35,717 INFO L87 Difference]: Start difference. First operand 1571 states and 2199 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) [2022-11-25 23:30:37,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:40,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:42,454 INFO L93 Difference]: Finished difference Result 2889 states and 4039 transitions. [2022-11-25 23:30:42,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:42,455 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 [2022-11-25 23:30:42,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:42,480 INFO L225 Difference]: With dead ends: 2889 [2022-11-25 23:30:42,480 INFO L226 Difference]: Without dead ends: 2885 [2022-11-25 23:30:42,483 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 [2022-11-25 23:30:42,484 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 1051 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2671 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:42,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 2671 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 23:30:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-11-25 23:30:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2881. [2022-11-25 23:30:42,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 1816 states have (on average 1.3639867841409692) internal successors, (2477), 1892 states have internal predecessors, (2477), 774 states have call successors, (774), 293 states have call predecessors, (774), 290 states have return successors, (780), 739 states have call predecessors, (780), 768 states have call successors, (780) [2022-11-25 23:30:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4031 transitions. [2022-11-25 23:30:42,739 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4031 transitions. Word has length 20 [2022-11-25 23:30:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:42,741 INFO L495 AbstractCegarLoop]: Abstraction has 2881 states and 4031 transitions. [2022-11-25 23:30:42,741 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) [2022-11-25 23:30:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4031 transitions. [2022-11-25 23:30:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:30:42,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:42,753 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] [2022-11-25 23:30:42,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:30:42,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:42,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash -712880733, now seen corresponding path program 1 times [2022-11-25 23:30:42,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:42,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995831686] [2022-11-25 23:30:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:43,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:43,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995831686] [2022-11-25 23:30:43,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995831686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:43,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:43,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:43,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154687915] [2022-11-25 23:30:43,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:43,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:43,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:43,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:43,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:43,046 INFO L87 Difference]: Start difference. First operand 2881 states and 4031 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) [2022-11-25 23:30:44,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:46,779 INFO L93 Difference]: Finished difference Result 2883 states and 4032 transitions. [2022-11-25 23:30:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:46,780 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 [2022-11-25 23:30:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:46,801 INFO L225 Difference]: With dead ends: 2883 [2022-11-25 23:30:46,801 INFO L226 Difference]: Without dead ends: 2880 [2022-11-25 23:30:46,804 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 [2022-11-25 23:30:46,811 INFO L413 NwaCegarLoop]: 1223 mSDtfsCounter, 1387 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:46,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 1223 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 23:30:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2022-11-25 23:30:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2022-11-25 23:30:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 1816 states have (on average 1.3634361233480177) internal successors, (2476), 1891 states have internal predecessors, (2476), 773 states have call successors, (773), 293 states have call predecessors, (773), 290 states have return successors, (780), 739 states have call predecessors, (780), 768 states have call successors, (780) [2022-11-25 23:30:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 4029 transitions. [2022-11-25 23:30:47,064 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 4029 transitions. Word has length 21 [2022-11-25 23:30:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:47,065 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 4029 transitions. [2022-11-25 23:30:47,066 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) [2022-11-25 23:30:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 4029 transitions. [2022-11-25 23:30:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:30:47,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:47,068 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] [2022-11-25 23:30:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:30:47,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -625008795, now seen corresponding path program 1 times [2022-11-25 23:30:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:47,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289111329] [2022-11-25 23:30:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:47,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:47,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:47,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289111329] [2022-11-25 23:30:47,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289111329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:47,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:47,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:47,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566595732] [2022-11-25 23:30:47,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:47,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:47,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:47,338 INFO L87 Difference]: Start difference. First operand 2880 states and 4029 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) [2022-11-25 23:30:49,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:51,726 INFO L93 Difference]: Finished difference Result 3303 states and 4531 transitions. [2022-11-25 23:30:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:51,727 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 [2022-11-25 23:30:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:51,749 INFO L225 Difference]: With dead ends: 3303 [2022-11-25 23:30:51,749 INFO L226 Difference]: Without dead ends: 3300 [2022-11-25 23:30:51,753 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 [2022-11-25 23:30:51,754 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1328 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:51,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1703 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:30:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-25 23:30:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-11-25 23:30:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2044 states have (on average 1.337573385518591) internal successors, (2734), 2129 states have internal predecessors, (2734), 887 states have call successors, (887), 369 states have call predecessors, (887), 368 states have return successors, (907), 845 states have call predecessors, (907), 883 states have call successors, (907) [2022-11-25 23:30:51,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4528 transitions. [2022-11-25 23:30:51,974 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4528 transitions. Word has length 22 [2022-11-25 23:30:51,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:51,975 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4528 transitions. [2022-11-25 23:30:51,975 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) [2022-11-25 23:30:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4528 transitions. [2022-11-25 23:30:51,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:30:51,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:51,979 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] [2022-11-25 23:30:51,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:30:51,980 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2099026150, now seen corresponding path program 1 times [2022-11-25 23:30:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:51,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329859628] [2022-11-25 23:30:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:51,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:52,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:52,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329859628] [2022-11-25 23:30:52,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329859628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:52,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:52,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:52,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097296841] [2022-11-25 23:30:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:52,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:52,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:52,297 INFO L87 Difference]: Start difference. First operand 3300 states and 4528 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) [2022-11-25 23:30:54,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:55,285 INFO L93 Difference]: Finished difference Result 3302 states and 4529 transitions. [2022-11-25 23:30:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:55,286 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 [2022-11-25 23:30:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:55,309 INFO L225 Difference]: With dead ends: 3302 [2022-11-25 23:30:55,310 INFO L226 Difference]: Without dead ends: 3275 [2022-11-25 23:30:55,313 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 [2022-11-25 23:30:55,314 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 1381 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:55,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 1220 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 23:30:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2022-11-25 23:30:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3269. [2022-11-25 23:30:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 2022 states have (on average 1.3353115727002967) internal successors, (2700), 2102 states have internal predecessors, (2700), 879 states have call successors, (879), 368 states have call predecessors, (879), 367 states have return successors, (900), 840 states have call predecessors, (900), 876 states have call successors, (900) [2022-11-25 23:30:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4479 transitions. [2022-11-25 23:30:55,568 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4479 transitions. Word has length 23 [2022-11-25 23:30:55,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:55,569 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4479 transitions. [2022-11-25 23:30:55,569 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) [2022-11-25 23:30:55,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4479 transitions. [2022-11-25 23:30:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 23:30:55,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:55,575 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] [2022-11-25 23:30:55,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:30:55,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash -30151648, now seen corresponding path program 1 times [2022-11-25 23:30:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:55,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227868381] [2022-11-25 23:30:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:55,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:55,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227868381] [2022-11-25 23:30:55,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227868381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:55,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:55,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:30:55,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564252153] [2022-11-25 23:30:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:55,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:30:55,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:30:55,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:30:55,965 INFO L87 Difference]: Start difference. First operand 3269 states and 4479 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) [2022-11-25 23:30:59,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:03,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:03,743 INFO L93 Difference]: Finished difference Result 6549 states and 8969 transitions. [2022-11-25 23:31:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:31:03,744 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 [2022-11-25 23:31:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:03,765 INFO L225 Difference]: With dead ends: 6549 [2022-11-25 23:31:03,766 INFO L226 Difference]: Without dead ends: 3275 [2022-11-25 23:31:03,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:31:03,782 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 8 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:03,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3652 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 542 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-25 23:31:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2022-11-25 23:31:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3267. [2022-11-25 23:31:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 2022 states have (on average 1.3338278931750742) internal successors, (2697), 2102 states have internal predecessors, (2697), 878 states have call successors, (878), 367 states have call predecessors, (878), 366 states have return successors, (899), 839 states have call predecessors, (899), 875 states have call successors, (899) [2022-11-25 23:31:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 4474 transitions. [2022-11-25 23:31:04,040 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 4474 transitions. Word has length 40 [2022-11-25 23:31:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:04,041 INFO L495 AbstractCegarLoop]: Abstraction has 3267 states and 4474 transitions. [2022-11-25 23:31:04,042 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) [2022-11-25 23:31:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 4474 transitions. [2022-11-25 23:31:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:31:04,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:04,048 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] [2022-11-25 23:31:04,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:31:04,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:31:04,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:04,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1730724851, now seen corresponding path program 1 times [2022-11-25 23:31:04,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:04,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733176568] [2022-11-25 23:31:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:04,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:04,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733176568] [2022-11-25 23:31:04,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733176568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:04,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:04,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:31:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578714702] [2022-11-25 23:31:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:04,360 INFO L87 Difference]: Start difference. First operand 3267 states and 4474 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) [2022-11-25 23:31:06,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:08,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:11,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:11,960 INFO L93 Difference]: Finished difference Result 6536 states and 8953 transitions. [2022-11-25 23:31:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:11,961 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 [2022-11-25 23:31:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:11,983 INFO L225 Difference]: With dead ends: 6536 [2022-11-25 23:31:11,983 INFO L226 Difference]: Without dead ends: 3270 [2022-11-25 23:31:11,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:11,998 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 0 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:11,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2433 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-11-25 23:31:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2022-11-25 23:31:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3270. [2022-11-25 23:31:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2025 states have (on average 1.3333333333333333) internal successors, (2700), 2105 states have internal predecessors, (2700), 878 states have call successors, (878), 367 states have call predecessors, (878), 366 states have return successors, (899), 839 states have call predecessors, (899), 875 states have call successors, (899) [2022-11-25 23:31:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4477 transitions. [2022-11-25 23:31:12,221 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4477 transitions. Word has length 45 [2022-11-25 23:31:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:12,223 INFO L495 AbstractCegarLoop]: Abstraction has 3270 states and 4477 transitions. [2022-11-25 23:31:12,224 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) [2022-11-25 23:31:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4477 transitions. [2022-11-25 23:31:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 23:31:12,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:12,227 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] [2022-11-25 23:31:12,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:31:12,228 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:31:12,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash 91111406, now seen corresponding path program 1 times [2022-11-25 23:31:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138331654] [2022-11-25 23:31:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:12,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:12,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138331654] [2022-11-25 23:31:12,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138331654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:31:12,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915390017] [2022-11-25 23:31:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:12,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:31:12,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:31:12,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:31:12,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:31:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:13,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:31:13,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:31:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:13,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:31:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:13,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915390017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:31:13,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1129687918] [2022-11-25 23:31:13,774 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-25 23:31:13,774 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:31:13,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:31:13,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:31:13,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:31:16,677 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 [2022-11-25 23:31:17,986 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 [2022-11-25 23:32:18,123 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:33:47,833 WARN L233 SmtUtils]: Spent 1.49m 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) [2022-11-25 23:33:59,119 WARN L233 SmtUtils]: Spent 11.07s 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) [2022-11-25 23:34:10,301 WARN L233 SmtUtils]: Spent 11.00s 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) [2022-11-25 23:34:21,908 WARN L233 SmtUtils]: Spent 11.38s 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) [2022-11-25 23:34:33,661 WARN L233 SmtUtils]: Spent 11.50s 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) [2022-11-25 23:34:45,245 WARN L233 SmtUtils]: Spent 11.29s 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) [2022-11-25 23:34:57,253 WARN L233 SmtUtils]: Spent 11.70s 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) [2022-11-25 23:35:09,305 WARN L233 SmtUtils]: Spent 11.73s 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) [2022-11-25 23:35:20,389 WARN L233 SmtUtils]: Spent 10.75s 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) [2022-11-25 23:35:32,759 WARN L233 SmtUtils]: Spent 12.05s 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) [2022-11-25 23:35:44,739 WARN L233 SmtUtils]: Spent 11.65s 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) [2022-11-25 23:35:56,834 WARN L233 SmtUtils]: Spent 11.67s 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) [2022-11-25 23:36:26,034 WARN L233 SmtUtils]: Spent 11.03s 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) [2022-11-25 23:36:28,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1129687918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:28,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:36:28,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-25 23:36:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658135634] [2022-11-25 23:36:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:28,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 23:36:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:28,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 23:36:28,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:36:28,931 INFO L87 Difference]: Start difference. First operand 3270 states and 4477 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) [2022-11-25 23:36:44,793 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 465 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:37:02,274 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 572 DAG size of output: 365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:37:10,888 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 573 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:37:19,580 WARN L233 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 575 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:37:28,357 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 575 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:37:58,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:00,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:03,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:04,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:06,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:07,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:18,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:22,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:23,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:25,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:27,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:29,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:30,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:33,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:35,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:37,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:39,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:41,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:43,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:38:47,812 INFO L93 Difference]: Finished difference Result 6909 states and 9580 transitions. [2022-11-25 23:38:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 23:38:47,815 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 [2022-11-25 23:38:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:38:47,838 INFO L225 Difference]: With dead ends: 6909 [2022-11-25 23:38:47,838 INFO L226 Difference]: Without dead ends: 3640 [2022-11-25 23:38:47,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 295.9s TimeCoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 23:38:47,857 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 371 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 55 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 10342 SdHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 5261 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:38:47,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 10342 Invalid, 5323 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [55 Valid, 5261 Invalid, 7 Unknown, 0 Unchecked, 92.9s Time] [2022-11-25 23:38:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2022-11-25 23:38:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3451. [2022-11-25 23:38:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 2196 states have (on average 1.3715846994535519) internal successors, (3012), 2278 states have internal predecessors, (3012), 888 states have call successors, (888), 367 states have call predecessors, (888), 366 states have return successors, (909), 849 states have call predecessors, (909), 885 states have call successors, (909) [2022-11-25 23:38:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 4809 transitions. [2022-11-25 23:38:48,611 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 4809 transitions. Word has length 46 [2022-11-25 23:38:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:38:48,612 INFO L495 AbstractCegarLoop]: Abstraction has 3451 states and 4809 transitions. [2022-11-25 23:38:48,613 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) [2022-11-25 23:38:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 4809 transitions. [2022-11-25 23:38:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:38:48,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:38:48,618 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] [2022-11-25 23:38:48,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:38:48,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:38:48,831 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:38:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:38:48,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1053965139, now seen corresponding path program 1 times [2022-11-25 23:38:48,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:38:48,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693035546] [2022-11-25 23:38:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:38:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:38:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:38:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:38:49,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:38:49,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693035546] [2022-11-25 23:38:49,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693035546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:38:49,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284663774] [2022-11-25 23:38:49,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:38:49,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:38:49,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:38:49,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:38:49,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:38:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:38:50,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:38:50,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:38:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:38:50,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:38:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:38:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284663774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:38:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2110917534] [2022-11-25 23:38:50,198 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-25 23:38:50,202 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:38:50,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:38:50,203 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:38:50,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:38:52,831 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 [2022-11-25 23:38:53,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:53,975 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 [2022-11-25 23:40:35,718 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:41:09,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2110917534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:41:09,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:41:09,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-25 23:41:09,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299259589] [2022-11-25 23:41:09,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:41:09,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 23:41:09,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:41:09,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 23:41:09,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:41:09,634 INFO L87 Difference]: Start difference. First operand 3451 states and 4809 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) [2022-11-25 23:41:43,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:41:47,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:41:49,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:41:52,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:41:57,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:41:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:41:58,395 INFO L93 Difference]: Finished difference Result 8220 states and 11343 transitions. [2022-11-25 23:41:58,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 23:41:58,402 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 [2022-11-25 23:41:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:41:58,423 INFO L225 Difference]: With dead ends: 8220 [2022-11-25 23:41:58,423 INFO L226 Difference]: Without dead ends: 4951 [2022-11-25 23:41:58,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:41:58,434 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 841 mSDsluCounter, 3752 mSDsCounter, 0 mSdLazyCounter, 3754 mSolverCounterSat, 146 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 3754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:41:58,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 5017 Invalid, 3902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [146 Valid, 3754 Invalid, 2 Unknown, 0 Unchecked, 31.6s Time] [2022-11-25 23:41:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2022-11-25 23:42:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4700. [2022-11-25 23:42:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 2931 states have (on average 1.3418628454452406) internal successors, (3933), 3062 states have internal predecessors, (3933), 1233 states have call successors, (1233), 536 states have call predecessors, (1233), 535 states have return successors, (1278), 1171 states have call predecessors, (1278), 1230 states have call successors, (1278) [2022-11-25 23:42:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6444 transitions. [2022-11-25 23:42:00,202 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6444 transitions. Word has length 51 [2022-11-25 23:42:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:42:00,202 INFO L495 AbstractCegarLoop]: Abstraction has 4700 states and 6444 transitions. [2022-11-25 23:42:00,202 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) [2022-11-25 23:42:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6444 transitions. [2022-11-25 23:42:00,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 23:42:00,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:00,207 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] [2022-11-25 23:42:00,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 23:42:00,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:42:00,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:42:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:00,419 INFO L85 PathProgramCache]: Analyzing trace with hash 709944389, now seen corresponding path program 1 times [2022-11-25 23:42:00,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:00,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835730521] [2022-11-25 23:42:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:42:00,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:00,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835730521] [2022-11-25 23:42:00,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835730521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:42:00,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395923504] [2022-11-25 23:42:00,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:00,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:42:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:42:00,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:42:00,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f162309-930d-4284-8f04-7312c5f7c519/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:42:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:01,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:42:01,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:42:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:42:01,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:42:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:42:01,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395923504] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:42:01,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2030820527] [2022-11-25 23:42:01,615 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-11-25 23:42:01,615 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:42:01,615 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:42:01,615 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:42:01,616 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:42:03,854 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 [2022-11-25 23:42:04,289 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 [2022-11-25 23:42:59,219 INFO L197 IcfgInterpreter]: Interpreting procedure ida_ioctl with input of size 312 for LOIs [2022-11-25 23:43:01,410 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 [2022-11-25 23:43:01,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:01,733 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 [2022-11-25 23:43:01,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:02,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:02,753 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 [2022-11-25 23:43:03,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:03,059 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 [2022-11-25 23:43:04,318 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 [2022-11-25 23:43:04,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:04,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:04,552 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 [2022-11-25 23:43:04,740 INFO L197 IcfgInterpreter]: Interpreting procedure get_host with input of size 312 for LOIs [2022-11-25 23:43:04,885 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 294 for LOIs [2022-11-25 23:43:04,935 INFO L197 IcfgInterpreter]: Interpreting procedure get_drv with input of size 311 for LOIs [2022-11-25 23:43:05,071 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_lock_cpqarray_mutex with input of size 291 for LOIs [2022-11-25 23:43:05,195 INFO L180 IcfgInterpreter]: Interpretation finished