./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/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_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/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_d239d4f0-0546-4dde-84fd-249f87762634/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 484c71f67ef44adda28419ba4f7367133d47a44b7b25589681c020e12726250b --- 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 23:28:34,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:28:34,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:28:34,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:28:34,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:28:34,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:28:34,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:28:34,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:28:34,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:28:34,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:28:34,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:28:34,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:28:34,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:28:34,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:28:34,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:28:34,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:28:34,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:28:34,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:28:34,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:28:34,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:28:34,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:28:34,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:28:34,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:28:34,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:28:34,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:28:34,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:28:34,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:28:34,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:28:34,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:28:34,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:28:34,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:28:34,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:28:34,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:28:34,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:28:34,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:28:34,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:28:34,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:28:34,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:28:34,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:28:34,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:28:34,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:28:34,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:28:34,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:28:34,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:28:34,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:28:34,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:28:34,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:28:34,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:28:34,986 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:28:34,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:28:34,986 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:28:34,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:28:34,987 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:28:34,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:28:34,988 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:28:34,988 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:28:34,988 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:28:34,988 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:28:34,988 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:28:34,989 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:28:34,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:28:34,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:28:34,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:28:34,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:28:34,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:28:34,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:28:34,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:28:34,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:28:34,992 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:28:34,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:28:34,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:28:34,993 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:28:34,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:28:34,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:28:34,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:28:34,994 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_d239d4f0-0546-4dde-84fd-249f87762634/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 484c71f67ef44adda28419ba4f7367133d47a44b7b25589681c020e12726250b [2022-11-25 23:28:35,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:28:35,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:28:35,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:28:35,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:28:35,340 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:28:35,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-25 23:28:38,635 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:28:39,465 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:28:39,466 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-25 23:28:39,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/data/63c0e1a6a/dd78339b367e4497a02c99e08b423f42/FLAG2eef3db99 [2022-11-25 23:28:39,553 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/data/63c0e1a6a/dd78339b367e4497a02c99e08b423f42 [2022-11-25 23:28:39,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:28:39,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:28:39,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:28:39,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:28:39,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:28:39,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:28:39" (1/1) ... [2022-11-25 23:28:39,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350fb0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:39, skipping insertion in model container [2022-11-25 23:28:39,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:28:39" (1/1) ... [2022-11-25 23:28:39,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:28:39,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:28:40,935 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:28:41,081 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:41,182 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:28:41,190 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:28:41,190 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:28:41,203 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:28:41,220 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:28:41,236 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:28:41,246 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:28:41,299 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:28:41,314 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:41,319 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:28:41,338 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:28:41,347 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:28:41,488 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:28:41,561 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:28:41,562 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:41,628 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:28:41,629 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:28:41,640 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:41,641 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:41,681 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:28:41,686 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:28:41,899 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:28:42,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:42,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:42,226 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:28:42,236 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-25 23:28:42,238 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:28:42,239 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,243 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:28:42,244 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:42,245 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,263 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:28:42,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:42,265 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:28:42,266 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:42,267 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-25 23:28:42,271 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:28:42,271 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:28:42,274 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,275 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,276 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:28:42,277 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:28:42,278 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:28:42,279 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:42,280 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:42,281 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:28:42,281 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:28:42,282 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:42,283 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:28:42,284 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:28:42,284 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:28:42,284 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:42,288 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,289 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:42,292 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 23:28:42,294 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:42,298 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 23:28:42,300 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:42,307 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:42,320 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:42,330 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:42,340 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:42,350 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:42,353 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:28:42,355 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:42,355 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:42,370 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 23:28:42,383 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:42,399 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:42,420 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:42,437 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:28:42,471 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:42,472 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:42,474 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:42,480 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,544 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:28:42,545 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:28:42,550 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,570 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:42,571 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:28:42,571 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:28:42,572 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:28:42,575 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 23:28:42,582 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 23:28:42,583 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-11-25 23:28:42,584 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:28:42,584 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:28:42,585 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:28:42,586 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:42,587 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:28:42,587 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,588 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:42,589 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:42,589 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,591 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:42,592 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:42,592 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:42,593 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:28:43,066 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,067 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,067 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,067 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,068 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,068 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,068 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,069 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,069 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,069 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,070 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,070 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,070 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,071 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,071 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,071 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:43,074 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:28:43,078 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:28:43,079 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:28:43,092 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:28:43,094 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:28:43,101 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:28:43,102 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:28:43,103 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:28:43,104 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:28:43,105 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:43,106 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:43,106 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:28:43,106 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-25 23:28:43,107 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:28:43,107 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 23:28:43,108 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:28:43,109 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:28:43,109 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:28:43,110 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:28:43,110 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:28:43,111 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:43,111 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:43,112 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:43,112 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:43,113 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:43,113 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:43,233 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:43,236 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,237 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,239 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,240 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:43,241 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,242 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,251 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,256 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,258 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,259 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,261 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,262 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,263 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,265 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,266 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,268 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,270 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,272 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,273 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:43,275 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,276 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,279 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,281 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,282 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,283 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,284 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,287 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,289 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,302 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,305 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,312 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,318 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,327 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,331 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,332 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,340 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,342 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,344 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,347 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,356 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,359 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,374 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,375 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,377 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,378 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,380 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,382 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:43,382 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:43,442 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,450 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,453 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,463 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,464 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,464 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,465 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,472 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,473 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,474 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:43,478 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,479 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,481 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,482 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,492 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,494 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:43,533 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:28:43,612 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:43,660 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:43,666 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:43,667 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:43,673 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:43,728 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:28:43,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,748 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,748 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,750 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,758 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:43,890 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:28:43,890 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:28:43,938 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:28:44,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[486836,486849] [2022-11-25 23:28:44,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[486983,486996] [2022-11-25 23:28:44,058 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[487122,487135] [2022-11-25 23:28:44,059 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[487280,487293] [2022-11-25 23:28:44,065 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,066 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,067 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,097 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,099 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:44,154 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:28:44,315 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:28:44,318 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,322 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:28:44,323 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 23:28:44,323 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:28:44,325 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:28:44,326 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 23:28:44,328 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 23:28:44,328 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 23:28:44,331 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 23:28:44,332 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:44,333 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 23:28:44,334 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 23:28:44,334 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 23:28:44,338 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:28:44,341 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:28:44,342 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,344 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:28:44,344 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:28:44,346 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:44,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,348 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 23:28:44,348 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 23:28:44,352 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:28:44,356 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,357 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,358 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:28:44,361 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-25 23:28:44,361 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:28:44,362 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,364 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-25 23:28:44,365 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:44,365 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,369 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:28:44,370 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,370 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 23:28:44,370 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:44,372 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-25 23:28:44,374 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:28:44,374 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:28:44,376 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,377 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,377 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:28:44,377 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:28:44,378 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:28:44,379 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:44,379 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:44,379 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:28:44,380 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:28:44,380 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:44,381 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:28:44,382 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:28:44,382 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 23:28:44,382 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:44,383 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,384 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:44,385 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 23:28:44,386 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:44,389 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 23:28:44,390 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:44,394 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:44,397 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 23:28:44,398 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:44,403 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:44,404 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:44,406 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:28:44,406 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:28:44,407 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:44,409 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 23:28:44,411 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:44,414 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:44,417 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:28:44,421 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:28:44,427 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:44,427 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:44,428 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:28:44,431 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,451 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:28:44,452 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:28:44,457 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,463 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,464 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:28:44,464 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:28:44,465 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:28:44,467 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 23:28:44,473 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 23:28:44,474 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-11-25 23:28:44,474 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:28:44,475 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:28:44,476 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 23:28:44,476 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 23:28:44,477 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 23:28:44,478 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,478 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:44,478 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:28:44,479 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,480 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:28:44,481 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 23:28:44,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,482 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 23:28:44,490 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,491 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,491 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,491 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,492 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,492 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,492 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,492 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,493 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,493 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,493 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,494 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,494 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,494 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,494 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,495 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,497 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:28:44,500 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:28:44,501 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:28:44,511 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:28:44,513 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:28:44,522 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:28:44,523 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:28:44,562 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 23:28:44,563 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 23:28:44,564 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:44,564 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:44,564 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:28:44,565 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-25 23:28:44,565 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:28:44,565 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 23:28:44,566 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:28:44,566 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:28:44,567 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:28:44,567 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:28:44,567 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:28:44,568 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:44,568 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:44,568 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:44,569 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:44,569 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:28:44,569 WARN L623 FunctionHandler]: Unknown extern function ldv_mod_timer [2022-11-25 23:28:44,571 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,574 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,576 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,578 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,579 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,580 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,581 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,584 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,587 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,589 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,591 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,592 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,594 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,598 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,599 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,601 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,602 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,605 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,606 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,607 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,607 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,609 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,611 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,614 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,615 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,616 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,618 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,619 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,623 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,624 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,626 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,628 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,629 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,631 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,633 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,636 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,639 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,642 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,651 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,653 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,656 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,657 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,660 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,661 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,664 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,665 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,668 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,671 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,672 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,684 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,685 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,688 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,690 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,691 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,693 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,694 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:28:44,695 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,696 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,697 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,700 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,701 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,701 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,702 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,702 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,703 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,704 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:28:44,708 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,709 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,713 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,714 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,719 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,721 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 23:28:44,730 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:28:44,763 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:44,766 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:28:44,767 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:44,768 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:44,768 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:28:44,784 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:28:44,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:28:44,816 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:28:44,816 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:28:44,818 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:28:44,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[486836,486849] [2022-11-25 23:28:44,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[486983,486996] [2022-11-25 23:28:44,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[487122,487135] [2022-11-25 23:28:44,825 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[487280,487293] [2022-11-25 23:28:44,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,834 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,835 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,839 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,841 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:28:44,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:45,209 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:28:45,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45 WrapperNode [2022-11-25 23:28:45,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:28:45,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:45,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:28:45,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:28:45,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:45,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:45,800 INFO L138 Inliner]: procedures = 480, calls = 6076, calls flagged for inlining = 277, calls inlined = 258, statements flattened = 11916 [2022-11-25 23:28:45,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:45,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:28:45,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:28:45,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:28:45,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:45,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:45,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:45,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:28:46,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:28:46,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:28:46,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:28:46,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (1/1) ... [2022-11-25 23:28:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:28:46,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:46,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:28:46,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d239d4f0-0546-4dde-84fd-249f87762634/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:28:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 23:28:46,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 23:28:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:28:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:28:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 23:28:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 23:28:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-25 23:28:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-25 23:28:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:28:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:28:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-25 23:28:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-25 23:28:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-25 23:28:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-25 23:28:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 23:28:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 23:28:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-25 23:28:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-25 23:28:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:28:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:28:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-25 23:28:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-25 23:28:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-25 23:28:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-25 23:28:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-25 23:28:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-25 23:28:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-25 23:28:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-25 23:28:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-25 23:28:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-25 23:28:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-25 23:28:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-25 23:28:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-25 23:28:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-25 23:28:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 23:28:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 23:28:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:28:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:28:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:28:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:28:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:28:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:28:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-25 23:28:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-25 23:28:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 23:28:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 23:28:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:28:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:28:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:28:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 23:28:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 23:28:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-25 23:28:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-25 23:28:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 23:28:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 23:28:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-25 23:28:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-25 23:28:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:28:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:28:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:28:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-25 23:28:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-25 23:28:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-25 23:28:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-25 23:28:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:28:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-25 23:28:46,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:28:46,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:28:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 23:28:46,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 23:28:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:28:46,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:28:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-25 23:28:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-25 23:28:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-25 23:28:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:28:46,689 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:28:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:28:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:28:46,690 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 23:28:46,690 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 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:28:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:28:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-25 23:28:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:28:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:28:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:28:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-25 23:28:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-25 23:28:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:28:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:28:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-25 23:28:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-25 23:28:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-25 23:28:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-25 23:28:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:28:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:28:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:28:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-25 23:28:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-25 23:28:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:28:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:28:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-25 23:28:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-25 23:28:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:28:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:28:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-25 23:28:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-25 23:28:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-25 23:28:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-25 23:28:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-25 23:28:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-25 23:28:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-25 23:28:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-25 23:28:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-25 23:28:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-25 23:28:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-25 23:28:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-25 23:28:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-25 23:28:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-25 23:28:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-25 23:28:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-25 23:28:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-25 23:28:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-25 23:28:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-25 23:28:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-25 23:28:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-25 23:28:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-25 23:28:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:28:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:28:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 23:28:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 23:28:46,703 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 23:28:46,703 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 23:28:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-25 23:28:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-25 23:28:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-25 23:28:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-25 23:28:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:28:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:28:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:28:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:28:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:28:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-25 23:28:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-25 23:28:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-25 23:28:48,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:28:48,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:28:48,496 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:29:19,093 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 23:29:19,427 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:29:22,256 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:29:22,257 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:29:22,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:29:22 BoogieIcfgContainer [2022-11-25 23:29:22,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:29:22,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:29:22,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:29:22,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:29:22,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:28:39" (1/3) ... [2022-11-25 23:29:22,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de9d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:29:22, skipping insertion in model container [2022-11-25 23:29:22,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:45" (2/3) ... [2022-11-25 23:29:22,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de9d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:29:22, skipping insertion in model container [2022-11-25 23:29:22,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:29:22" (3/3) ... [2022-11-25 23:29:22,277 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-25 23:29:22,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:29:22,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:29:22,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:29:22,439 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;@36d21f51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:29:22,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:29:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 2521 states, 1466 states have (on average 1.2462482946793998) internal successors, (1827), 1501 states have internal predecessors, (1827), 921 states have call successors, (921), 133 states have call predecessors, (921), 132 states have return successors, (916), 906 states have call predecessors, (916), 916 states have call successors, (916) [2022-11-25 23:29:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 23:29:22,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:22,492 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:22,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:29:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1301646126, now seen corresponding path program 1 times [2022-11-25 23:29:22,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:22,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516895312] [2022-11-25 23:29:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-25 23:29:24,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:24,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516895312] [2022-11-25 23:29:24,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516895312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:24,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:24,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:29:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639031019] [2022-11-25 23:29:24,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:24,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:29:24,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:24,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:29:24,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:29:24,093 INFO L87 Difference]: Start difference. First operand has 2521 states, 1466 states have (on average 1.2462482946793998) internal successors, (1827), 1501 states have internal predecessors, (1827), 921 states have call successors, (921), 133 states have call predecessors, (921), 132 states have return successors, (916), 906 states have call predecessors, (916), 916 states have call successors, (916) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 23:29:26,839 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 23:29:31,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:38,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:38,793 INFO L93 Difference]: Finished difference Result 7329 states and 10731 transitions. [2022-11-25 23:29:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:29:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 176 [2022-11-25 23:29:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:38,865 INFO L225 Difference]: With dead ends: 7329 [2022-11-25 23:29:38,865 INFO L226 Difference]: Without dead ends: 4823 [2022-11-25 23:29:38,891 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 23:29:38,898 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3380 mSDsluCounter, 3161 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 7405 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:38,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 7405 Invalid, 953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 947 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-11-25 23:29:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2022-11-25 23:29:39,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4818. [2022-11-25 23:29:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 2794 states have (on average 1.237294201861131) internal successors, (3457), 2860 states have internal predecessors, (3457), 1761 states have call successors, (1761), 262 states have call predecessors, (1761), 261 states have return successors, (1759), 1737 states have call predecessors, (1759), 1759 states have call successors, (1759) [2022-11-25 23:29:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 6977 transitions. [2022-11-25 23:29:39,591 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 6977 transitions. Word has length 176 [2022-11-25 23:29:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:39,596 INFO L495 AbstractCegarLoop]: Abstraction has 4818 states and 6977 transitions. [2022-11-25 23:29:39,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 23:29:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 6977 transitions. [2022-11-25 23:29:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-25 23:29:39,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:39,617 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:29:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:29:39,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:29:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:39,618 INFO L85 PathProgramCache]: Analyzing trace with hash 97203768, now seen corresponding path program 1 times [2022-11-25 23:29:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:39,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080588757] [2022-11-25 23:29:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:39,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-25 23:29:40,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:40,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080588757] [2022-11-25 23:29:40,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080588757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:40,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:40,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:29:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955396943] [2022-11-25 23:29:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:40,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:29:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:29:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:29:40,816 INFO L87 Difference]: Start difference. First operand 4818 states and 6977 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-25 23:29:43,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:49,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:53,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:55,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:57,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:29:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:58,149 INFO L93 Difference]: Finished difference Result 11236 states and 16287 transitions. [2022-11-25 23:29:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:29:58,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 197 [2022-11-25 23:29:58,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:58,206 INFO L225 Difference]: With dead ends: 11236 [2022-11-25 23:29:58,206 INFO L226 Difference]: Without dead ends: 6451 [2022-11-25 23:29:58,243 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 23:29:58,244 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 2846 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 7300 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:58,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 7300 Invalid, 1030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1009 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-11-25 23:29:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2022-11-25 23:29:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6442. [2022-11-25 23:29:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6442 states, 3742 states have (on average 1.2279529663281668) internal successors, (4595), 3820 states have internal predecessors, (4595), 2363 states have call successors, (2363), 336 states have call predecessors, (2363), 335 states have return successors, (2361), 2334 states have call predecessors, (2361), 2361 states have call successors, (2361) [2022-11-25 23:29:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6442 states to 6442 states and 9319 transitions. [2022-11-25 23:29:58,996 INFO L78 Accepts]: Start accepts. Automaton has 6442 states and 9319 transitions. Word has length 197 [2022-11-25 23:29:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:58,997 INFO L495 AbstractCegarLoop]: Abstraction has 6442 states and 9319 transitions. [2022-11-25 23:29:58,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-25 23:29:58,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6442 states and 9319 transitions. [2022-11-25 23:29:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-25 23:29:59,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:59,004 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:59,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:29:59,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:29:59,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash 422383152, now seen corresponding path program 1 times [2022-11-25 23:29:59,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:59,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627691633] [2022-11-25 23:29:59,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:59,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2022-11-25 23:30:00,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:00,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627691633] [2022-11-25 23:30:00,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627691633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:00,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:00,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:30:00,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980653483] [2022-11-25 23:30:00,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:00,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:30:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:00,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:30:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:30:00,437 INFO L87 Difference]: Start difference. First operand 6442 states and 9319 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 23:30:02,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:04,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:10,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:16,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:18,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:21,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:23,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:27,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:29,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:30,436 INFO L93 Difference]: Finished difference Result 10904 states and 15772 transitions. [2022-11-25 23:30:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:30:30,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 214 [2022-11-25 23:30:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:30,507 INFO L225 Difference]: With dead ends: 10904 [2022-11-25 23:30:30,508 INFO L226 Difference]: Without dead ends: 10887 [2022-11-25 23:30:30,516 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 23:30:30,517 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 3574 mSDsluCounter, 7180 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3574 SdHoareTripleChecker+Valid, 11242 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:30,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3574 Valid, 11242 Invalid, 1396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1391 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2022-11-25 23:30:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2022-11-25 23:30:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 10884. [2022-11-25 23:30:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10884 states, 6328 states have (on average 1.229456384323641) internal successors, (7780), 6461 states have internal predecessors, (7780), 3982 states have call successors, (3982), 573 states have call predecessors, (3982), 572 states have return successors, (3980), 3934 states have call predecessors, (3980), 3980 states have call successors, (3980) [2022-11-25 23:30:31,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10884 states to 10884 states and 15742 transitions. [2022-11-25 23:30:31,486 INFO L78 Accepts]: Start accepts. Automaton has 10884 states and 15742 transitions. Word has length 214 [2022-11-25 23:30:31,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:31,488 INFO L495 AbstractCegarLoop]: Abstraction has 10884 states and 15742 transitions. [2022-11-25 23:30:31,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 23:30:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 10884 states and 15742 transitions. [2022-11-25 23:30:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-25 23:30:31,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:31,501 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:31,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:30:31,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1759644565, now seen corresponding path program 1 times [2022-11-25 23:30:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:31,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594973648] [2022-11-25 23:30:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:31,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-25 23:30:32,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:32,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594973648] [2022-11-25 23:30:32,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594973648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:32,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:32,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588664090] [2022-11-25 23:30:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:32,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:32,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:32,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:32,375 INFO L87 Difference]: Start difference. First operand 10884 states and 15742 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 23:30:35,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:37,312 WARN L539 Checker$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 23:30:41,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:45,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:50,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:56,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:30:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:57,285 INFO L93 Difference]: Finished difference Result 23754 states and 34369 transitions. [2022-11-25 23:30:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:57,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 240 [2022-11-25 23:30:57,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:57,406 INFO L225 Difference]: With dead ends: 23754 [2022-11-25 23:30:57,406 INFO L226 Difference]: Without dead ends: 14850 [2022-11-25 23:30:57,465 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 23:30:57,471 INFO L413 NwaCegarLoop]: 5648 mSDtfsCounter, 2844 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 8767 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:57,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 8767 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1348 Invalid, 3 Unknown, 0 Unchecked, 24.3s Time] [2022-11-25 23:30:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14850 states. [2022-11-25 23:30:58,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14850 to 14839. [2022-11-25 23:30:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14839 states, 8621 states have (on average 1.2271198236863472) internal successors, (10579), 8798 states have internal predecessors, (10579), 5438 states have call successors, (5438), 779 states have call predecessors, (5438), 778 states have return successors, (5436), 5372 states have call predecessors, (5436), 5436 states have call successors, (5436) [2022-11-25 23:30:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14839 states to 14839 states and 21453 transitions. [2022-11-25 23:30:58,852 INFO L78 Accepts]: Start accepts. Automaton has 14839 states and 21453 transitions. Word has length 240 [2022-11-25 23:30:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:58,853 INFO L495 AbstractCegarLoop]: Abstraction has 14839 states and 21453 transitions. [2022-11-25 23:30:58,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 23:30:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 14839 states and 21453 transitions. [2022-11-25 23:30:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-25 23:30:58,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:58,869 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:58,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:30:58,870 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:30:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1419648618, now seen corresponding path program 1 times [2022-11-25 23:30:58,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:58,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118123110] [2022-11-25 23:30:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2022-11-25 23:30:59,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:59,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118123110] [2022-11-25 23:30:59,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118123110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:59,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:59,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:59,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078234389] [2022-11-25 23:30:59,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:59,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:59,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:59,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:59,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:59,455 INFO L87 Difference]: Start difference. First operand 14839 states and 21453 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 23:31:04,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:06,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:11,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:16,208 WARN L539 Checker$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 23:31:19,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:19,979 INFO L93 Difference]: Finished difference Result 33230 states and 47761 transitions. [2022-11-25 23:31:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 250 [2022-11-25 23:31:19,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:20,107 INFO L225 Difference]: With dead ends: 33230 [2022-11-25 23:31:20,107 INFO L226 Difference]: Without dead ends: 18424 [2022-11-25 23:31:20,185 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 23:31:20,186 INFO L413 NwaCegarLoop]: 3841 mSDtfsCounter, 2577 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2577 SdHoareTripleChecker+Valid, 6934 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:20,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2577 Valid, 6934 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 989 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-11-25 23:31:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18424 states. [2022-11-25 23:31:22,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18424 to 18411. [2022-11-25 23:31:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18411 states, 10694 states have (on average 1.216289508135403) internal successors, (13007), 10930 states have internal predecessors, (13007), 6652 states have call successors, (6652), 1066 states have call predecessors, (6652), 1063 states have return successors, (6652), 6558 states have call predecessors, (6652), 6650 states have call successors, (6652) [2022-11-25 23:31:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18411 states to 18411 states and 26311 transitions. [2022-11-25 23:31:22,445 INFO L78 Accepts]: Start accepts. Automaton has 18411 states and 26311 transitions. Word has length 250 [2022-11-25 23:31:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:22,447 INFO L495 AbstractCegarLoop]: Abstraction has 18411 states and 26311 transitions. [2022-11-25 23:31:22,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 23:31:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18411 states and 26311 transitions. [2022-11-25 23:31:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-25 23:31:22,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:22,460 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:22,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:31:22,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:31:22,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:22,461 INFO L85 PathProgramCache]: Analyzing trace with hash -796921087, now seen corresponding path program 1 times [2022-11-25 23:31:22,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:22,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397688542] [2022-11-25 23:31:22,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:22,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2022-11-25 23:31:24,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:24,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397688542] [2022-11-25 23:31:24,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397688542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:24,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:24,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:31:24,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353254827] [2022-11-25 23:31:24,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:24,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:31:24,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:24,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:31:24,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:31:24,236 INFO L87 Difference]: Start difference. First operand 18411 states and 26311 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:31:36,204 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 23:31:39,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:41,780 WARN L539 Checker$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 23:31:49,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:53,253 WARN L539 Checker$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 23:31:55,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:58,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:31:59,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:02,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:02,990 INFO L93 Difference]: Finished difference Result 35138 states and 51268 transitions. [2022-11-25 23:32:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:32:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 302 [2022-11-25 23:32:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:03,223 INFO L225 Difference]: With dead ends: 35138 [2022-11-25 23:32:03,223 INFO L226 Difference]: Without dead ends: 35136 [2022-11-25 23:32:03,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:32:03,254 INFO L413 NwaCegarLoop]: 5129 mSDtfsCounter, 5314 mSDsluCounter, 8681 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 408 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5628 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:03,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5628 Valid, 13810 Invalid, 2401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [408 Valid, 1990 Invalid, 3 Unknown, 0 Unchecked, 37.5s Time] [2022-11-25 23:32:03,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35136 states. [2022-11-25 23:32:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35136 to 27377. [2022-11-25 23:32:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27377 states, 15904 states have (on average 1.2162349094567404) internal successors, (19343), 16248 states have internal predecessors, (19343), 9888 states have call successors, (9888), 1587 states have call predecessors, (9888), 1583 states have return successors, (9889), 9752 states have call predecessors, (9889), 9886 states have call successors, (9889) [2022-11-25 23:32:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27377 states to 27377 states and 39120 transitions. [2022-11-25 23:32:06,701 INFO L78 Accepts]: Start accepts. Automaton has 27377 states and 39120 transitions. Word has length 302 [2022-11-25 23:32:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:06,703 INFO L495 AbstractCegarLoop]: Abstraction has 27377 states and 39120 transitions. [2022-11-25 23:32:06,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:32:06,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27377 states and 39120 transitions. [2022-11-25 23:32:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2022-11-25 23:32:06,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:06,762 INFO L195 NwaCegarLoop]: trace histogram [31, 19, 19, 19, 19, 19, 19, 18, 18, 8, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:32:06,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:32:06,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:32:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2082315740, now seen corresponding path program 1 times [2022-11-25 23:32:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:06,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142748725] [2022-11-25 23:32:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:06,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2022-11-25 23:32:09,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:09,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142748725] [2022-11-25 23:32:09,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142748725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:09,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:09,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:32:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803986585] [2022-11-25 23:32:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:09,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:32:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:09,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:32:09,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:09,303 INFO L87 Difference]: Start difference. First operand 27377 states and 39120 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 2 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-11-25 23:32:17,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:18,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:22,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:24,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:29,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:30,238 INFO L93 Difference]: Finished difference Result 62024 states and 89689 transitions. [2022-11-25 23:32:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:32:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 2 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) Word has length 682 [2022-11-25 23:32:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:30,454 INFO L225 Difference]: With dead ends: 62024 [2022-11-25 23:32:30,455 INFO L226 Difference]: Without dead ends: 35028 [2022-11-25 23:32:30,575 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 23:32:30,576 INFO L413 NwaCegarLoop]: 4083 mSDtfsCounter, 685 mSDsluCounter, 3386 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 7469 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:30,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 7469 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1057 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2022-11-25 23:32:30,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35028 states. [2022-11-25 23:32:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35028 to 27383. [2022-11-25 23:32:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27383 states, 15910 states have (on average 1.2161533626649905) internal successors, (19349), 16254 states have internal predecessors, (19349), 9888 states have call successors, (9888), 1587 states have call predecessors, (9888), 1583 states have return successors, (9889), 9752 states have call predecessors, (9889), 9886 states have call successors, (9889) [2022-11-25 23:32:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27383 states to 27383 states and 39126 transitions. [2022-11-25 23:32:33,385 INFO L78 Accepts]: Start accepts. Automaton has 27383 states and 39126 transitions. Word has length 682 [2022-11-25 23:32:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:33,387 INFO L495 AbstractCegarLoop]: Abstraction has 27383 states and 39126 transitions. [2022-11-25 23:32:33,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 2 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2022-11-25 23:32:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 27383 states and 39126 transitions. [2022-11-25 23:32:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2022-11-25 23:32:33,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:33,442 INFO L195 NwaCegarLoop]: trace histogram [31, 19, 19, 19, 19, 19, 19, 18, 18, 8, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:32:33,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:32:33,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:32:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 397746494, now seen corresponding path program 1 times [2022-11-25 23:32:33,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:33,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852730889] [2022-11-25 23:32:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:33,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 2534 trivial. 0 not checked. [2022-11-25 23:32:36,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:36,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852730889] [2022-11-25 23:32:36,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852730889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:36,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:36,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:32:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960377464] [2022-11-25 23:32:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:36,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:32:36,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:32:36,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:36,878 INFO L87 Difference]: Start difference. First operand 27383 states and 39126 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2022-11-25 23:32:49,561 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 23:32:54,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:56,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:58,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:32:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:59,602 INFO L93 Difference]: Finished difference Result 62371 states and 89003 transitions. [2022-11-25 23:32:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:32:59,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) Word has length 684 [2022-11-25 23:32:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:59,824 INFO L225 Difference]: With dead ends: 62371 [2022-11-25 23:32:59,824 INFO L226 Difference]: Without dead ends: 35369 [2022-11-25 23:33:00,155 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 23:33:00,157 INFO L413 NwaCegarLoop]: 5362 mSDtfsCounter, 2554 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:33:00,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 8473 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1302 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2022-11-25 23:33:00,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35369 states. [2022-11-25 23:33:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35369 to 35354. [2022-11-25 23:33:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35354 states, 20647 states have (on average 1.2205647309536494) internal successors, (25201), 21093 states have internal predecessors, (25201), 12573 states have call successors, (12573), 2139 states have call predecessors, (12573), 2132 states have return successors, (12577), 12392 states have call predecessors, (12577), 12571 states have call successors, (12577) [2022-11-25 23:33:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35354 states to 35354 states and 50351 transitions. [2022-11-25 23:33:02,819 INFO L78 Accepts]: Start accepts. Automaton has 35354 states and 50351 transitions. Word has length 684 [2022-11-25 23:33:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:02,821 INFO L495 AbstractCegarLoop]: Abstraction has 35354 states and 50351 transitions. [2022-11-25 23:33:02,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 3 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2022-11-25 23:33:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 35354 states and 50351 transitions. [2022-11-25 23:33:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-11-25 23:33:02,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:02,908 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:33:02,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:33:02,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:33:02,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash 251930436, now seen corresponding path program 1 times [2022-11-25 23:33:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:02,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413799411] [2022-11-25 23:33:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:02,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:33:06,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:06,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413799411] [2022-11-25 23:33:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413799411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:33:06,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:33:06,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:33:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671189697] [2022-11-25 23:33:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:33:06,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:33:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:33:06,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:33:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:33:06,412 INFO L87 Difference]: Start difference. First operand 35354 states and 50351 transitions. Second operand has 5 states, 5 states have (on average 56.0) internal successors, (280), 4 states have internal predecessors, (280), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:33:20,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:33:26,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:33:40,860 WARN L539 Checker$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 23:33:42,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:33:46,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:33:47,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:33:47,164 INFO L93 Difference]: Finished difference Result 78103 states and 110997 transitions. [2022-11-25 23:33:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:33:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 4 states have internal predecessors, (280), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 706 [2022-11-25 23:33:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:33:47,378 INFO L225 Difference]: With dead ends: 78103 [2022-11-25 23:33:47,379 INFO L226 Difference]: Without dead ends: 43130 [2022-11-25 23:33:47,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:33:47,532 INFO L413 NwaCegarLoop]: 5403 mSDtfsCounter, 2556 mSDsluCounter, 13917 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 19320 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:33:47,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2556 Valid, 19320 Invalid, 2901 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2898 Invalid, 2 Unknown, 0 Unchecked, 38.7s Time] [2022-11-25 23:33:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43130 states. [2022-11-25 23:33:50,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43130 to 43097. [2022-11-25 23:33:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43097 states, 25123 states have (on average 1.2152609162918442) internal successors, (30531), 25677 states have internal predecessors, (30531), 15291 states have call successors, (15291), 2682 states have call predecessors, (15291), 2681 states have return successors, (15307), 15071 states have call predecessors, (15307), 15289 states have call successors, (15307) [2022-11-25 23:33:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43097 states to 43097 states and 61129 transitions. [2022-11-25 23:33:50,780 INFO L78 Accepts]: Start accepts. Automaton has 43097 states and 61129 transitions. Word has length 706 [2022-11-25 23:33:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:50,781 INFO L495 AbstractCegarLoop]: Abstraction has 43097 states and 61129 transitions. [2022-11-25 23:33:50,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 4 states have internal predecessors, (280), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:33:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 43097 states and 61129 transitions. [2022-11-25 23:33:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2022-11-25 23:33:50,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:50,834 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:33:50,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:33:50,835 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:33:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash -471436523, now seen corresponding path program 1 times [2022-11-25 23:33:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:50,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581820862] [2022-11-25 23:33:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:33:54,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:54,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581820862] [2022-11-25 23:33:54,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581820862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:33:54,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:33:54,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:33:54,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565934235] [2022-11-25 23:33:54,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:33:54,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:33:54,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:33:54,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:33:54,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:33:54,080 INFO L87 Difference]: Start difference. First operand 43097 states and 61129 transitions. Second operand has 5 states, 5 states have (on average 56.2) internal successors, (281), 4 states have internal predecessors, (281), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:33:59,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:06,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:08,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:10,528 WARN L539 Checker$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 23:34:14,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:16,792 WARN L539 Checker$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 23:34:18,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:19,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:26,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:30,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:34:31,687 INFO L93 Difference]: Finished difference Result 92845 states and 131422 transitions. [2022-11-25 23:34:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:34:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.2) internal successors, (281), 4 states have internal predecessors, (281), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 707 [2022-11-25 23:34:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:34:32,153 INFO L225 Difference]: With dead ends: 92845 [2022-11-25 23:34:32,153 INFO L226 Difference]: Without dead ends: 50129 [2022-11-25 23:34:32,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:34:32,280 INFO L413 NwaCegarLoop]: 5048 mSDtfsCounter, 2180 mSDsluCounter, 13187 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 18235 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:34:32,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 18235 Invalid, 2788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2780 Invalid, 5 Unknown, 0 Unchecked, 35.6s Time] [2022-11-25 23:34:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50129 states. [2022-11-25 23:34:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50129 to 50066. [2022-11-25 23:34:35,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50066 states, 29131 states have (on average 1.2111496344100785) internal successors, (35282), 29790 states have internal predecessors, (35282), 17700 states have call successors, (17700), 3228 states have call predecessors, (17700), 3233 states have return successors, (17737), 17444 states have call predecessors, (17737), 17698 states have call successors, (17737) [2022-11-25 23:34:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50066 states to 50066 states and 70719 transitions. [2022-11-25 23:34:35,479 INFO L78 Accepts]: Start accepts. Automaton has 50066 states and 70719 transitions. Word has length 707 [2022-11-25 23:34:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:34:35,481 INFO L495 AbstractCegarLoop]: Abstraction has 50066 states and 70719 transitions. [2022-11-25 23:34:35,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.2) internal successors, (281), 4 states have internal predecessors, (281), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:34:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 50066 states and 70719 transitions. [2022-11-25 23:34:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-11-25 23:34:35,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:34:35,539 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:34:35,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:34:35,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:34:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:34:35,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2124873966, now seen corresponding path program 1 times [2022-11-25 23:34:35,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:34:35,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902196944] [2022-11-25 23:34:35,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:34:35,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:34:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:34:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:34:38,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:34:38,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902196944] [2022-11-25 23:34:38,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902196944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:34:38,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:34:38,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:34:38,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55613313] [2022-11-25 23:34:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:34:38,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:34:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:34:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:34:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:34:38,852 INFO L87 Difference]: Start difference. First operand 50066 states and 70719 transitions. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 4 states have internal predecessors, (282), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:34:45,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:34:52,617 WARN L539 Checker$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 23:34:56,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:02,327 WARN L539 Checker$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 23:35:10,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:15,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:18,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:19,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:21,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:23,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:35:24,991 INFO L93 Difference]: Finished difference Result 108391 states and 152903 transitions. [2022-11-25 23:35:24,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:35:24,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 4 states have internal predecessors, (282), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 708 [2022-11-25 23:35:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:35:25,294 INFO L225 Difference]: With dead ends: 108391 [2022-11-25 23:35:25,294 INFO L226 Difference]: Without dead ends: 58706 [2022-11-25 23:35:25,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:35:25,459 INFO L413 NwaCegarLoop]: 5406 mSDtfsCounter, 2594 mSDsluCounter, 13888 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 19294 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:35:25,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 19294 Invalid, 2916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2907 Invalid, 3 Unknown, 0 Unchecked, 43.9s Time] [2022-11-25 23:35:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58706 states. [2022-11-25 23:35:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58706 to 58673. [2022-11-25 23:35:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58673 states, 34084 states have (on average 1.2071059734772913) internal successors, (41143), 34851 states have internal predecessors, (41143), 20715 states have call successors, (20715), 3861 states have call predecessors, (20715), 3872 states have return successors, (20764), 20420 states have call predecessors, (20764), 20713 states have call successors, (20764) [2022-11-25 23:35:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58673 states to 58673 states and 82622 transitions. [2022-11-25 23:35:28,950 INFO L78 Accepts]: Start accepts. Automaton has 58673 states and 82622 transitions. Word has length 708 [2022-11-25 23:35:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:35:28,951 INFO L495 AbstractCegarLoop]: Abstraction has 58673 states and 82622 transitions. [2022-11-25 23:35:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 4 states have internal predecessors, (282), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:35:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 58673 states and 82622 transitions. [2022-11-25 23:35:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2022-11-25 23:35:29,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:35:29,011 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:29,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:35:29,012 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:35:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:35:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash -967687484, now seen corresponding path program 1 times [2022-11-25 23:35:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:35:29,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777854472] [2022-11-25 23:35:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:35:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:35:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:35:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:35:32,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:35:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777854472] [2022-11-25 23:35:32,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777854472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:35:32,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:35:32,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:35:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737338142] [2022-11-25 23:35:32,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:35:32,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:35:32,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:35:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:35:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:35:32,528 INFO L87 Difference]: Start difference. First operand 58673 states and 82622 transitions. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 4 states have internal predecessors, (283), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:35:39,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:45,825 WARN L539 Checker$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 23:35:47,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:50,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:51,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:35:56,791 WARN L539 Checker$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 23:36:07,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:10,889 WARN L539 Checker$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 23:36:12,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:17,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:19,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:21,354 INFO L93 Difference]: Finished difference Result 124807 states and 175653 transitions. [2022-11-25 23:36:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 4 states have internal predecessors, (283), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 709 [2022-11-25 23:36:21,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:21,652 INFO L225 Difference]: With dead ends: 124807 [2022-11-25 23:36:21,652 INFO L226 Difference]: Without dead ends: 66515 [2022-11-25 23:36:21,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:21,852 INFO L413 NwaCegarLoop]: 5407 mSDtfsCounter, 2558 mSDsluCounter, 13923 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 19330 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:21,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 19330 Invalid, 2923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2912 Invalid, 4 Unknown, 0 Unchecked, 45.8s Time] [2022-11-25 23:36:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66515 states. [2022-11-25 23:36:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66515 to 66482. [2022-11-25 23:36:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66482 states, 38620 states have (on average 1.2048938373899534) internal successors, (46533), 39495 states have internal predecessors, (46533), 23433 states have call successors, (23433), 4410 states have call predecessors, (23433), 4427 states have return successors, (23494), 23099 states have call predecessors, (23494), 23431 states have call successors, (23494) [2022-11-25 23:36:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66482 states to 66482 states and 93460 transitions. [2022-11-25 23:36:27,073 INFO L78 Accepts]: Start accepts. Automaton has 66482 states and 93460 transitions. Word has length 709 [2022-11-25 23:36:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 66482 states and 93460 transitions. [2022-11-25 23:36:27,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 4 states have internal predecessors, (283), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:36:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 66482 states and 93460 transitions. [2022-11-25 23:36:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2022-11-25 23:36:27,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:27,160 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:36:27,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:36:27,160 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:36:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash -741128682, now seen corresponding path program 1 times [2022-11-25 23:36:27,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:27,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999659017] [2022-11-25 23:36:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:27,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:36:30,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999659017] [2022-11-25 23:36:30,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999659017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:30,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:30,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:36:30,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308985844] [2022-11-25 23:36:30,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:30,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:30,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:30,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:30,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:30,490 INFO L87 Difference]: Start difference. First operand 66482 states and 93460 transitions. Second operand has 5 states, 5 states have (on average 56.8) internal successors, (284), 4 states have internal predecessors, (284), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:36:35,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:38,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:45,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:46,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:49,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:36:55,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:08,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:12,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:13,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:18,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:19,467 INFO L93 Difference]: Finished difference Result 140461 states and 197377 transitions. [2022-11-25 23:37:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:37:19,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 4 states have internal predecessors, (284), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 710 [2022-11-25 23:37:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:19,797 INFO L225 Difference]: With dead ends: 140461 [2022-11-25 23:37:19,797 INFO L226 Difference]: Without dead ends: 74360 [2022-11-25 23:37:20,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:37:20,009 INFO L413 NwaCegarLoop]: 5406 mSDtfsCounter, 2569 mSDsluCounter, 13912 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 19318 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:20,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2569 Valid, 19318 Invalid, 2928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2918 Invalid, 2 Unknown, 0 Unchecked, 45.7s Time] [2022-11-25 23:37:20,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74360 states. [2022-11-25 23:37:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74360 to 74327. [2022-11-25 23:37:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74327 states, 43177 states have (on average 1.2030479190309655) internal successors, (51944), 44160 states have internal predecessors, (51944), 26160 states have call successors, (26160), 4965 states have call predecessors, (26160), 4988 states have return successors, (26233), 25787 states have call predecessors, (26233), 26158 states have call successors, (26233) [2022-11-25 23:37:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74327 states to 74327 states and 104337 transitions. [2022-11-25 23:37:24,701 INFO L78 Accepts]: Start accepts. Automaton has 74327 states and 104337 transitions. Word has length 710 [2022-11-25 23:37:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:24,702 INFO L495 AbstractCegarLoop]: Abstraction has 74327 states and 104337 transitions. [2022-11-25 23:37:24,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 4 states have internal predecessors, (284), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:37:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 74327 states and 104337 transitions. [2022-11-25 23:37:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2022-11-25 23:37:24,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:24,767 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:37:24,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:37:24,768 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1417692271, now seen corresponding path program 1 times [2022-11-25 23:37:24,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:24,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063646711] [2022-11-25 23:37:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:24,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:37:27,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:27,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063646711] [2022-11-25 23:37:27,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063646711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:27,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:27,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:37:27,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115217186] [2022-11-25 23:37:27,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:27,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:37:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:37:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:37:27,582 INFO L87 Difference]: Start difference. First operand 74327 states and 104337 transitions. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 4 states have internal predecessors, (285), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:37:33,706 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 23:37:39,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:40,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:42,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:44,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:45,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:50,611 WARN L539 Checker$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 23:38:00,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:04,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:07,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:38:08,516 INFO L93 Difference]: Finished difference Result 155830 states and 218672 transitions. [2022-11-25 23:38:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:38:08,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 4 states have internal predecessors, (285), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 711 [2022-11-25 23:38:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:38:08,886 INFO L225 Difference]: With dead ends: 155830 [2022-11-25 23:38:08,886 INFO L226 Difference]: Without dead ends: 81884 [2022-11-25 23:38:09,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:38:09,110 INFO L413 NwaCegarLoop]: 5284 mSDtfsCounter, 2408 mSDsluCounter, 13679 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 18963 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:38:09,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 18963 Invalid, 2852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2840 Invalid, 4 Unknown, 0 Unchecked, 37.4s Time] [2022-11-25 23:38:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81884 states. [2022-11-25 23:38:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81884 to 81824. [2022-11-25 23:38:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81824 states, 47500 states have (on average 1.200778947368421) internal successors, (57037), 48585 states have internal predecessors, (57037), 28794 states have call successors, (28794), 5499 states have call predecessors, (28794), 5528 states have return successors, (28879), 28388 states have call predecessors, (28879), 28792 states have call successors, (28879) [2022-11-25 23:38:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81824 states to 81824 states and 114710 transitions. [2022-11-25 23:38:14,182 INFO L78 Accepts]: Start accepts. Automaton has 81824 states and 114710 transitions. Word has length 711 [2022-11-25 23:38:14,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:38:14,183 INFO L495 AbstractCegarLoop]: Abstraction has 81824 states and 114710 transitions. [2022-11-25 23:38:14,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 4 states have internal predecessors, (285), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:38:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 81824 states and 114710 transitions. [2022-11-25 23:38:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-11-25 23:38:14,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:38:14,239 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:14,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:38:14,240 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:38:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:38:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1159994683, now seen corresponding path program 1 times [2022-11-25 23:38:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:38:14,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236755031] [2022-11-25 23:38:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:38:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:38:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:38:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:38:16,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:38:16,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236755031] [2022-11-25 23:38:16,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236755031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:38:16,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:38:16,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:38:16,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607865747] [2022-11-25 23:38:16,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:38:16,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:38:16,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:38:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:38:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:38:16,947 INFO L87 Difference]: Start difference. First operand 81824 states and 114710 transitions. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:38:23,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:30,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:31,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:34,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:39,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:41,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:43,530 WARN L539 Checker$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 23:38:45,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:56,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:38:58,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:00,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:03,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:05,134 WARN L539 Checker$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 23:39:07,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:39:09,627 INFO L93 Difference]: Finished difference Result 171124 states and 239877 transitions. [2022-11-25 23:39:09,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:39:09,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 712 [2022-11-25 23:39:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:39:10,047 INFO L225 Difference]: With dead ends: 171124 [2022-11-25 23:39:10,047 INFO L226 Difference]: Without dead ends: 89681 [2022-11-25 23:39:10,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:39:10,309 INFO L413 NwaCegarLoop]: 5407 mSDtfsCounter, 2558 mSDsluCounter, 13923 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 10 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 19330 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:39:10,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 19330 Invalid, 2938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2924 Invalid, 4 Unknown, 0 Unchecked, 48.7s Time] [2022-11-25 23:39:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89681 states. [2022-11-25 23:39:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89681 to 89648. [2022-11-25 23:39:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89648 states, 52057 states have (on average 1.1996081218664156) internal successors, (62448), 53250 states have internal predecessors, (62448), 31512 states have call successors, (31512), 6042 states have call predecessors, (31512), 6077 states have return successors, (31609), 31067 states have call predecessors, (31609), 31510 states have call successors, (31609) [2022-11-25 23:39:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89648 states to 89648 states and 125569 transitions. [2022-11-25 23:39:16,367 INFO L78 Accepts]: Start accepts. Automaton has 89648 states and 125569 transitions. Word has length 712 [2022-11-25 23:39:16,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:39:16,368 INFO L495 AbstractCegarLoop]: Abstraction has 89648 states and 125569 transitions. [2022-11-25 23:39:16,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:39:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 89648 states and 125569 transitions. [2022-11-25 23:39:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-11-25 23:39:16,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:39:16,442 INFO L195 NwaCegarLoop]: trace histogram [33, 19, 19, 19, 19, 19, 19, 18, 18, 8, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:16,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:39:16,443 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:39:16,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:39:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2139713171, now seen corresponding path program 1 times [2022-11-25 23:39:16,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:39:16,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092836190] [2022-11-25 23:39:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:39:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:39:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:39:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2022-11-25 23:39:18,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:39:18,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092836190] [2022-11-25 23:39:18,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092836190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:39:18,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:39:18,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:39:18,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177694116] [2022-11-25 23:39:18,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:39:18,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:39:18,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:39:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:39:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:39:18,734 INFO L87 Difference]: Start difference. First operand 89648 states and 125569 transitions. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 4 states have internal predecessors, (287), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 23:39:25,689 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 23:39:34,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:42,065 WARN L539 Checker$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 23:39:48,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:39:55,203 WARN L539 Checker$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 23:40:00,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:40:04,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:40:05,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:40:05,937 INFO L93 Difference]: Finished difference Result 186781 states and 261613 transitions. [2022-11-25 23:40:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:40:05,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 4 states have internal predecessors, (287), 3 states have call successors, (96), 1 states have call predecessors, (96), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 713 [2022-11-25 23:40:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:40:06,779 INFO L225 Difference]: With dead ends: 186781 [2022-11-25 23:40:06,779 INFO L226 Difference]: Without dead ends: 97514 [2022-11-25 23:40:07,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:40:07,086 INFO L413 NwaCegarLoop]: 5407 mSDtfsCounter, 2558 mSDsluCounter, 13923 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 19330 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:40:07,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 19330 Invalid, 2939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2925 Invalid, 3 Unknown, 0 Unchecked, 43.3s Time] [2022-11-25 23:40:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97514 states.