./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:04:15,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:04:15,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:04:15,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:04:15,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:04:15,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:04:15,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:04:15,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:04:15,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:04:15,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:04:15,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:04:15,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:04:15,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:04:15,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:04:15,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:04:15,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:04:15,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:04:15,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:04:15,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:04:15,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:04:15,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:04:15,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:04:15,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:04:15,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:04:15,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:04:15,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:04:15,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:04:15,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:04:15,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:04:15,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:04:15,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:04:15,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:04:15,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:04:15,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:04:15,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:04:15,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:04:15,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:04:15,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:04:15,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:04:15,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:04:15,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:04:15,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:04:15,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:04:15,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:04:15,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:04:15,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:04:15,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:04:15,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:04:15,633 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:04:15,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:04:15,634 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:04:15,635 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:04:15,635 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:04:15,635 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:04:15,635 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:04:15,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:04:15,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:04:15,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:04:15,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:04:15,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:04:15,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:04:15,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:04:15,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:04:15,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:04:15,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:04:15,639 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_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2022-12-14 12:04:15,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:04:15,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:04:15,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:04:15,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:04:15,826 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:04:15,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-12-14 12:04:18,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:04:18,764 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:04:18,765 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-12-14 12:04:18,791 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/data/5f79cf827/455b716d05d1411586c4706172cf4f79/FLAGd842c7639 [2022-12-14 12:04:18,801 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/data/5f79cf827/455b716d05d1411586c4706172cf4f79 [2022-12-14 12:04:18,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:04:18,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:04:18,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:04:18,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:04:18,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:04:18,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:04:18" (1/1) ... [2022-12-14 12:04:18,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68da6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:18, skipping insertion in model container [2022-12-14 12:04:18,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:04:18" (1/1) ... [2022-12-14 12:04:18,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:04:18,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:04:19,466 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:04:19,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:04:19,517 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:04:19,526 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 12:04:19,769 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 12:04:19,808 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 12:04:19,813 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 12:04:19,819 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 12:04:19,848 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 12:04:19,894 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:04:19,898 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:04:19,898 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:04:19,906 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:04:19,914 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:04:19,922 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:04:19,929 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 12:04:19,950 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 12:04:19,966 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-14 12:04:19,986 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 12:04:20,109 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:20,115 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 12:04:20,217 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-12-14 12:04:20,244 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 12:04:20,247 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 12:04:20,254 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb_sk [2022-12-14 12:04:20,391 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 12:04:20,399 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:20,399 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:20,409 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:20,410 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:20,411 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:04:20,420 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:20,446 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,456 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,462 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,480 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 12:04:20,480 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:20,496 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,506 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:20,517 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,518 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:04:20,518 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:04:20,539 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:04:20,550 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:20,555 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,559 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,593 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,620 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,621 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,623 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 12:04:20,638 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,640 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,642 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:04:20,642 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:04:20,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,655 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,660 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 12:04:20,661 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 12:04:20,689 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 12:04:20,692 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,728 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,729 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,730 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:20,731 WARN L623 FunctionHandler]: Unknown extern function napi_disable [2022-12-14 12:04:20,731 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:20,741 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:20,746 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:20,746 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 12:04:20,747 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 12:04:20,749 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,749 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:20,750 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,752 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,753 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,754 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:20,755 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:20,756 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:20,756 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:20,756 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 12:04:20,762 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 12:04:20,762 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 12:04:20,762 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:20,763 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,763 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:20,776 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 12:04:20,791 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:20,791 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:20,792 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:20,792 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:20,792 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 12:04:20,792 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:20,793 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:20,793 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 12:04:20,793 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,793 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 12:04:20,794 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,801 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 12:04:20,801 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,802 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,804 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:20,804 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:04:20,804 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:04:20,805 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:04:20,805 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:04:20,806 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,806 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:20,806 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 12:04:20,807 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:04:20,807 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:20,812 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 12:04:20,812 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:04:20,812 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:20,818 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 12:04:20,819 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:20,823 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:20,824 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,824 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:20,829 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:20,829 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 12:04:20,893 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:04:20,896 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_late_6 [2022-12-14 12:04:20,896 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_6 [2022-12-14 12:04:20,896 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_6 [2022-12-14 12:04:20,898 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_7 [2022-12-14 12:04:20,898 WARN L623 FunctionHandler]: Unknown extern function ldv_release_7 [2022-12-14 12:04:20,898 WARN L623 FunctionHandler]: Unknown extern function ldv_release_7 [2022-12-14 12:04:20,899 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_7 [2022-12-14 12:04:20,900 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:20,900 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:20,900 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:20,905 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_8 [2022-12-14 12:04:20,905 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_8 [2022-12-14 12:04:20,907 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 12:04:20,909 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:20,909 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:20,910 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:20,910 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:20,911 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:20,914 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 12:04:20,914 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 12:04:20,915 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 12:04:20,916 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 12:04:20,917 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 12:04:20,917 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:04:20,918 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 12:04:20,918 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:04:20,919 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 12:04:20,919 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 12:04:21,013 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,016 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,018 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:04:21,020 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:04:21,022 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:04:21,034 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,035 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,036 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,037 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,038 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,040 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,040 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,041 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,043 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,043 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,045 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,046 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,046 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,051 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,052 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,052 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,053 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,053 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,159 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,199 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,204 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,204 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,205 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,205 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,217 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 12:04:21,226 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 12:04:21,227 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,227 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,228 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,229 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,229 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,303 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,304 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,305 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,306 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,306 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,307 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 12:04:21,308 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 12:04:21,312 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,313 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,313 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,313 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,314 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,320 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_ca6ef180-641a-420f-99bd-2cb15ed355d5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-12-14 12:04:21,351 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 12:04:21,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:04:21,414 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:04:21,507 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:04:21,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:04:21,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:04:21,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 12:04:21,510 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 12:04:21,511 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 12:04:21,513 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 12:04:21,515 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 12:04:21,516 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 12:04:21,519 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:04:21,519 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:04:21,520 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:04:21,521 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:04:21,522 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:04:21,522 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:04:21,523 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 12:04:21,523 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 12:04:21,524 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-14 12:04:21,526 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 12:04:21,530 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:21,530 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 12:04:21,535 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-12-14 12:04:21,536 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 12:04:21,536 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 12:04:21,536 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb_sk [2022-12-14 12:04:21,548 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 12:04:21,549 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:21,549 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,551 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:21,552 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,553 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:04:21,554 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,558 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,560 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,561 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,564 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 12:04:21,564 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,567 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,569 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,571 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,571 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:04:21,571 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:04:21,577 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:04:21,579 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,580 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,583 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,593 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,599 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,600 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,600 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 12:04:21,604 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,605 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,606 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:04:21,606 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:04:21,608 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,610 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,611 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 12:04:21,611 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 12:04:21,615 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 12:04:21,617 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,637 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,639 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,639 WARN L623 FunctionHandler]: Unknown extern function napi_disable [2022-12-14 12:04:21,640 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:21,641 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:21,642 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:04:21,643 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 12:04:21,643 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 12:04:21,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,645 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,647 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,649 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,650 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:21,650 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:21,651 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:21,651 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 12:04:21,651 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 12:04:21,652 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 12:04:21,652 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 12:04:21,652 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:21,653 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,653 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:21,654 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 12:04:21,658 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:21,658 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:21,658 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:21,659 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:21,659 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 12:04:21,660 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 12:04:21,660 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:21,660 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 12:04:21,660 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,664 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 12:04:21,665 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,673 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 12:04:21,674 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,674 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,675 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,675 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:04:21,676 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:04:21,676 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:04:21,676 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:04:21,676 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,677 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:04:21,677 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 12:04:21,677 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:04:21,677 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:21,678 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 12:04:21,678 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:04:21,678 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:21,678 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 12:04:21,679 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:04:21,679 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:04:21,679 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,679 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:04:21,680 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,680 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 12:04:21,690 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:04:21,691 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_late_6 [2022-12-14 12:04:21,692 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_6 [2022-12-14 12:04:21,692 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_6 [2022-12-14 12:04:21,693 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_7 [2022-12-14 12:04:21,693 WARN L623 FunctionHandler]: Unknown extern function ldv_release_7 [2022-12-14 12:04:21,693 WARN L623 FunctionHandler]: Unknown extern function ldv_release_7 [2022-12-14 12:04:21,694 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_7 [2022-12-14 12:04:21,694 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:21,695 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:21,695 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:04:21,697 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_8 [2022-12-14 12:04:21,697 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_8 [2022-12-14 12:04:21,698 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 12:04:21,698 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,699 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,700 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,700 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,700 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,702 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 12:04:21,702 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 12:04:21,702 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 12:04:21,702 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 12:04:21,703 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 12:04:21,703 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:04:21,703 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 12:04:21,704 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:04:21,704 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 12:04:21,704 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 12:04:21,707 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,708 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,709 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:04:21,710 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:04:21,711 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:04:21,716 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,716 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,717 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,720 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,720 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,721 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,721 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,721 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,722 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 12:04:21,722 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,726 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,726 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,726 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:04:21,729 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,730 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,730 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,730 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,731 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,734 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:04:21,742 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,743 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,758 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:04:21,759 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,759 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,760 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,760 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:04:21,762 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 12:04:21,764 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 12:04:21,765 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,765 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,765 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,766 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,766 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,768 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,769 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,769 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,770 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,770 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:04:21,771 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 12:04:21,771 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 12:04:21,773 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,773 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,774 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:04:21,774 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:04:21,774 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:04:21,775 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_ca6ef180-641a-420f-99bd-2cb15ed355d5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-12-14 12:04:21,776 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 12:04:21,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:04:21,912 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:04:21,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21 WrapperNode [2022-12-14 12:04:21,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:04:21,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:04:21,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:04:21,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:04:21,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:21,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,120 INFO L138 Inliner]: procedures = 464, calls = 3161, calls flagged for inlining = 208, calls inlined = 193, statements flattened = 7459 [2022-12-14 12:04:22,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:04:22,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:04:22,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:04:22,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:04:22,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,317 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:04:22,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:04:22,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:04:22,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:04:22,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (1/1) ... [2022-12-14 12:04:22,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:04:22,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:04:22,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:04:22,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:04:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 12:04:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 12:04:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 12:04:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 12:04:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-12-14 12:04:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2022-12-14 12:04:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2022-12-14 12:04:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-12-14 12:04:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-12-14 12:04:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-12-14 12:04:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-12-14 12:04:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2022-12-14 12:04:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2022-12-14 12:04:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 12:04:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-12-14 12:04:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-12-14 12:04:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-12-14 12:04:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 12:04:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-12-14 12:04:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 12:04:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-12-14 12:04:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 12:04:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 12:04:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-12-14 12:04:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-14 12:04:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 12:04:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 12:04:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 12:04:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 12:04:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 12:04:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 12:04:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 12:04:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 12:04:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-12-14 12:04:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-12-14 12:04:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-12-14 12:04:23,102 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:04:23,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:04:23,388 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 12:04:30,698 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:04:32,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:04:32,178 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:04:32,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:04:32 BoogieIcfgContainer [2022-12-14 12:04:32,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:04:32,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:04:32,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:04:32,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:04:32,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:04:18" (1/3) ... [2022-12-14 12:04:32,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110f1d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:04:32, skipping insertion in model container [2022-12-14 12:04:32,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:04:21" (2/3) ... [2022-12-14 12:04:32,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110f1d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:04:32, skipping insertion in model container [2022-12-14 12:04:32,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:04:32" (3/3) ... [2022-12-14 12:04:32,188 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-12-14 12:04:32,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:04:32,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:04:32,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:04:32,275 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;@43e90c3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:04:32,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:04:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2022-12-14 12:04:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 12:04:32,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:04:32,306 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:04:32,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:04:32,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:04:32,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1692901017, now seen corresponding path program 1 times [2022-12-14 12:04:32,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:04:32,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219177229] [2022-12-14 12:04:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:04:32,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:04:32,608 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:04:32,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666728744] [2022-12-14 12:04:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:04:32,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:04:32,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:04:32,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:04:32,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:04:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:04:33,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:04:33,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:04:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-12-14 12:04:33,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:04:33,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:04:33,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219177229] [2022-12-14 12:04:33,719 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:04:33,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666728744] [2022-12-14 12:04:33,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666728744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:04:33,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:04:33,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:04:33,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745562511] [2022-12-14 12:04:33,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:04:33,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:04:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:04:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:04:33,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:33,762 INFO L87 Difference]: Start difference. First operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 12:04:37,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:39,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:41,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:04:41,258 INFO L93 Difference]: Finished difference Result 5942 states and 8611 transitions. [2022-12-14 12:04:41,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:04:41,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2022-12-14 12:04:41,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:04:41,291 INFO L225 Difference]: With dead ends: 5942 [2022-12-14 12:04:41,292 INFO L226 Difference]: Without dead ends: 3729 [2022-12-14 12:04:41,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:41,307 INFO L413 NwaCegarLoop]: 3334 mSDtfsCounter, 2281 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 6071 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:04:41,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 6071 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 12:04:41,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2022-12-14 12:04:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3711. [2022-12-14 12:04:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 2297 states have (on average 1.3086634740966478) internal successors, (3006), 2346 states have internal predecessors, (3006), 1162 states have call successors, (1162), 253 states have call predecessors, (1162), 251 states have return successors, (1161), 1146 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-12-14 12:04:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5329 transitions. [2022-12-14 12:04:41,526 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5329 transitions. Word has length 135 [2022-12-14 12:04:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:04:41,527 INFO L495 AbstractCegarLoop]: Abstraction has 3711 states and 5329 transitions. [2022-12-14 12:04:41,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 12:04:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5329 transitions. [2022-12-14 12:04:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-12-14 12:04:41,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:04:41,536 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:04:41,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:04:41,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 12:04:41,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:04:41,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:04:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash -737566845, now seen corresponding path program 1 times [2022-12-14 12:04:41,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:04:41,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178312016] [2022-12-14 12:04:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:04:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:04:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:04:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-12-14 12:04:42,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:04:42,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178312016] [2022-12-14 12:04:42,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178312016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:04:42,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:04:42,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:04:42,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465294520] [2022-12-14 12:04:42,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:04:42,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:04:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:04:42,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:04:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:42,109 INFO L87 Difference]: Start difference. First operand 3711 states and 5329 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 12:04:45,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:49,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:04:50,506 INFO L93 Difference]: Finished difference Result 10448 states and 14961 transitions. [2022-12-14 12:04:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:04:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2022-12-14 12:04:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:04:50,540 INFO L225 Difference]: With dead ends: 10448 [2022-12-14 12:04:50,540 INFO L226 Difference]: Without dead ends: 6762 [2022-12-14 12:04:50,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:50,557 INFO L413 NwaCegarLoop]: 3905 mSDtfsCounter, 2591 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:04:50,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 6694 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 662 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 12:04:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2022-12-14 12:04:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6757. [2022-12-14 12:04:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4192 states have (on average 1.3096374045801527) internal successors, (5490), 4287 states have internal predecessors, (5490), 2086 states have call successors, (2086), 482 states have call predecessors, (2086), 478 states have return successors, (2085), 2053 states have call predecessors, (2085), 2085 states have call successors, (2085) [2022-12-14 12:04:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9661 transitions. [2022-12-14 12:04:50,785 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9661 transitions. Word has length 197 [2022-12-14 12:04:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:04:50,786 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9661 transitions. [2022-12-14 12:04:50,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 12:04:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9661 transitions. [2022-12-14 12:04:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-14 12:04:50,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:04:50,796 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 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] [2022-12-14 12:04:50,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:04:50,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:04:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:04:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1891326273, now seen corresponding path program 1 times [2022-12-14 12:04:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:04:50,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926710302] [2022-12-14 12:04:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:04:50,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:04:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:04:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2022-12-14 12:04:51,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:04:51,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926710302] [2022-12-14 12:04:51,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926710302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:04:51,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:04:51,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:04:51,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497384711] [2022-12-14 12:04:51,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:04:51,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:04:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:04:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:04:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:51,331 INFO L87 Difference]: Start difference. First operand 6757 states and 9661 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 12:04:54,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:57,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:04:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:04:58,692 INFO L93 Difference]: Finished difference Result 12611 states and 18070 transitions. [2022-12-14 12:04:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:04:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 278 [2022-12-14 12:04:58,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:04:58,734 INFO L225 Difference]: With dead ends: 12611 [2022-12-14 12:04:58,734 INFO L226 Difference]: Without dead ends: 12608 [2022-12-14 12:04:58,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:58,739 INFO L413 NwaCegarLoop]: 4017 mSDtfsCounter, 2526 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:04:58,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 6799 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-12-14 12:04:58,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-12-14 12:04:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12532. [2022-12-14 12:04:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12532 states, 7833 states have (on average 1.3146942423081833) internal successors, (10298), 7994 states have internal predecessors, (10298), 3802 states have call successors, (3802), 904 states have call predecessors, (3802), 896 states have return successors, (3835), 3749 states have call predecessors, (3835), 3801 states have call successors, (3835) [2022-12-14 12:04:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12532 states to 12532 states and 17935 transitions. [2022-12-14 12:04:59,202 INFO L78 Accepts]: Start accepts. Automaton has 12532 states and 17935 transitions. Word has length 278 [2022-12-14 12:04:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:04:59,203 INFO L495 AbstractCegarLoop]: Abstraction has 12532 states and 17935 transitions. [2022-12-14 12:04:59,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 12:04:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand 12532 states and 17935 transitions. [2022-12-14 12:04:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 12:04:59,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:04:59,223 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 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] [2022-12-14 12:04:59,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:04:59,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:04:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:04:59,223 INFO L85 PathProgramCache]: Analyzing trace with hash 62327973, now seen corresponding path program 1 times [2022-12-14 12:04:59,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:04:59,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199157891] [2022-12-14 12:04:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:04:59,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:04:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:04:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-12-14 12:04:59,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:04:59,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199157891] [2022-12-14 12:04:59,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199157891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:04:59,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:04:59,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:04:59,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326276740] [2022-12-14 12:04:59,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:04:59,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:04:59,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:04:59,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:04:59,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:04:59,682 INFO L87 Difference]: Start difference. First operand 12532 states and 17935 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 12:05:04,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:05,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:07,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:09,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:05:11,262 INFO L93 Difference]: Finished difference Result 34845 states and 49750 transitions. [2022-12-14 12:05:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:05:11,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 288 [2022-12-14 12:05:11,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:05:11,338 INFO L225 Difference]: With dead ends: 34845 [2022-12-14 12:05:11,338 INFO L226 Difference]: Without dead ends: 22338 [2022-12-14 12:05:11,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:11,378 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 2515 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 7032 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:05:11,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 7032 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 713 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 12:05:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22338 states. [2022-12-14 12:05:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22338 to 22334. [2022-12-14 12:05:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22334 states, 13990 states have (on average 1.313795568263045) internal successors, (18380), 14245 states have internal predecessors, (18380), 6696 states have call successors, (6696), 1659 states have call predecessors, (6696), 1647 states have return successors, (6763), 6621 states have call predecessors, (6763), 6695 states have call successors, (6763) [2022-12-14 12:05:12,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22334 states to 22334 states and 31839 transitions. [2022-12-14 12:05:12,111 INFO L78 Accepts]: Start accepts. Automaton has 22334 states and 31839 transitions. Word has length 288 [2022-12-14 12:05:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:05:12,111 INFO L495 AbstractCegarLoop]: Abstraction has 22334 states and 31839 transitions. [2022-12-14 12:05:12,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 12:05:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 22334 states and 31839 transitions. [2022-12-14 12:05:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-12-14 12:05:12,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:05:12,141 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 3, 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] [2022-12-14 12:05:12,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:05:12,141 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:05:12,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:05:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2092493558, now seen corresponding path program 1 times [2022-12-14 12:05:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:05:12,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496375140] [2022-12-14 12:05:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:05:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-12-14 12:05:12,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:05:12,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496375140] [2022-12-14 12:05:12,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496375140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:12,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:05:12,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:05:12,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340169895] [2022-12-14 12:05:12,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:12,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:05:12,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:12,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:05:12,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:12,588 INFO L87 Difference]: Start difference. First operand 22334 states and 31839 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 12:05:15,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:18,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:05:20,188 INFO L93 Difference]: Finished difference Result 66788 states and 95220 transitions. [2022-12-14 12:05:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:05:20,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 315 [2022-12-14 12:05:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:05:20,391 INFO L225 Difference]: With dead ends: 66788 [2022-12-14 12:05:20,392 INFO L226 Difference]: Without dead ends: 44489 [2022-12-14 12:05:20,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:20,472 INFO L413 NwaCegarLoop]: 4045 mSDtfsCounter, 3004 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 6848 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:05:20,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 6848 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 12:05:20,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44489 states. [2022-12-14 12:05:21,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44489 to 44464. [2022-12-14 12:05:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44464 states, 27854 states have (on average 1.3142098082860632) internal successors, (36606), 28377 states have internal predecessors, (36606), 13326 states have call successors, (13326), 3307 states have call predecessors, (13326), 3283 states have return successors, (13461), 13163 states have call predecessors, (13461), 13325 states have call successors, (13461) [2022-12-14 12:05:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44464 states to 44464 states and 63393 transitions. [2022-12-14 12:05:21,959 INFO L78 Accepts]: Start accepts. Automaton has 44464 states and 63393 transitions. Word has length 315 [2022-12-14 12:05:21,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:05:21,959 INFO L495 AbstractCegarLoop]: Abstraction has 44464 states and 63393 transitions. [2022-12-14 12:05:21,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 12:05:21,960 INFO L276 IsEmpty]: Start isEmpty. Operand 44464 states and 63393 transitions. [2022-12-14 12:05:21,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 12:05:21,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:05:21,995 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 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] [2022-12-14 12:05:21,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:05:21,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:05:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:05:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1318141929, now seen corresponding path program 1 times [2022-12-14 12:05:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:05:21,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844388750] [2022-12-14 12:05:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:21,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:05:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1046 trivial. 0 not checked. [2022-12-14 12:05:22,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:05:22,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844388750] [2022-12-14 12:05:22,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844388750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:22,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:05:22,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:05:22,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064653107] [2022-12-14 12:05:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:22,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:05:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:05:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:22,839 INFO L87 Difference]: Start difference. First operand 44464 states and 63393 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:05:25,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:28,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:31,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:32,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:05:32,594 INFO L93 Difference]: Finished difference Result 65272 states and 93181 transitions. [2022-12-14 12:05:32,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:05:32,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 369 [2022-12-14 12:05:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:05:32,820 INFO L225 Difference]: With dead ends: 65272 [2022-12-14 12:05:32,820 INFO L226 Difference]: Without dead ends: 65269 [2022-12-14 12:05:32,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:32,851 INFO L413 NwaCegarLoop]: 3474 mSDtfsCounter, 2595 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6255 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:05:32,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 6255 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 573 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-12-14 12:05:32,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65269 states. [2022-12-14 12:05:35,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65269 to 64604. [2022-12-14 12:05:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64604 states, 40611 states have (on average 1.3164659821230702) internal successors, (53463), 41327 states have internal predecessors, (53463), 19236 states have call successors, (19236), 4792 states have call predecessors, (19236), 4756 states have return successors, (19507), 19028 states have call predecessors, (19507), 19235 states have call successors, (19507) [2022-12-14 12:05:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64604 states to 64604 states and 92206 transitions. [2022-12-14 12:05:35,500 INFO L78 Accepts]: Start accepts. Automaton has 64604 states and 92206 transitions. Word has length 369 [2022-12-14 12:05:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:05:35,501 INFO L495 AbstractCegarLoop]: Abstraction has 64604 states and 92206 transitions. [2022-12-14 12:05:35,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:05:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 64604 states and 92206 transitions. [2022-12-14 12:05:35,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-12-14 12:05:35,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:05:35,603 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:05:35,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:05:35,603 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:05:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:05:35,604 INFO L85 PathProgramCache]: Analyzing trace with hash -113514902, now seen corresponding path program 1 times [2022-12-14 12:05:35,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:05:35,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396200163] [2022-12-14 12:05:35,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:35,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:05:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:36,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:05:36,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396200163] [2022-12-14 12:05:36,060 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 12:05:36,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555776328] [2022-12-14 12:05:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:36,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:05:36,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:05:36,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:05:36,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:05:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:37,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 7253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:05:37,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:05:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-12-14 12:05:37,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:05:37,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555776328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:37,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:05:37,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:05:37,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386407488] [2022-12-14 12:05:37,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:37,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:05:37,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:05:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:37,531 INFO L87 Difference]: Start difference. First operand 64604 states and 92206 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 12:05:41,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:44,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:46,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:05:48,123 INFO L93 Difference]: Finished difference Result 129557 states and 186244 transitions. [2022-12-14 12:05:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:05:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 436 [2022-12-14 12:05:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:05:48,391 INFO L225 Difference]: With dead ends: 129557 [2022-12-14 12:05:48,391 INFO L226 Difference]: Without dead ends: 64988 [2022-12-14 12:05:48,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:48,575 INFO L413 NwaCegarLoop]: 2851 mSDtfsCounter, 11 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:05:48,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5687 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 572 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-12-14 12:05:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64988 states. [2022-12-14 12:05:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64988 to 64652. [2022-12-14 12:05:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64652 states, 40659 states have (on average 1.3160923780712757) internal successors, (53511), 41375 states have internal predecessors, (53511), 19236 states have call successors, (19236), 4792 states have call predecessors, (19236), 4756 states have return successors, (19507), 19028 states have call predecessors, (19507), 19235 states have call successors, (19507) [2022-12-14 12:05:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64652 states to 64652 states and 92254 transitions. [2022-12-14 12:05:50,594 INFO L78 Accepts]: Start accepts. Automaton has 64652 states and 92254 transitions. Word has length 436 [2022-12-14 12:05:50,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:05:50,594 INFO L495 AbstractCegarLoop]: Abstraction has 64652 states and 92254 transitions. [2022-12-14 12:05:50,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 12:05:50,595 INFO L276 IsEmpty]: Start isEmpty. Operand 64652 states and 92254 transitions. [2022-12-14 12:05:50,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-12-14 12:05:50,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:05:50,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:05:50,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:05:50,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:05:50,875 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:05:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:05:50,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1061207157, now seen corresponding path program 1 times [2022-12-14 12:05:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:05:50,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481978629] [2022-12-14 12:05:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:50,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:05:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:51,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:05:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481978629] [2022-12-14 12:05:51,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 12:05:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931420936] [2022-12-14 12:05:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:05:51,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:05:51,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:05:51,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:05:51,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:05:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:05:52,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 7275 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:05:52,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:05:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-12-14 12:05:53,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:05:53,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931420936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:05:53,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:05:53,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:05:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162963264] [2022-12-14 12:05:53,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:05:53,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:05:53,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:05:53,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:05:53,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:05:53,064 INFO L87 Difference]: Start difference. First operand 64652 states and 92254 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-12-14 12:05:57,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:05:59,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:01,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:04,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:06:04,847 INFO L93 Difference]: Finished difference Result 186468 states and 265963 transitions. [2022-12-14 12:06:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:06:04,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 441 [2022-12-14 12:06:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:06:05,263 INFO L225 Difference]: With dead ends: 186468 [2022-12-14 12:06:05,263 INFO L226 Difference]: Without dead ends: 121851 [2022-12-14 12:06:05,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:06:05,441 INFO L413 NwaCegarLoop]: 3330 mSDtfsCounter, 2364 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:06:05,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 6001 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 685 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-12-14 12:06:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121851 states. [2022-12-14 12:06:08,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121851 to 121572. [2022-12-14 12:06:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121572 states, 76908 states have (on average 1.315233785822021) internal successors, (101152), 78258 states have internal predecessors, (101152), 35650 states have call successors, (35650), 9096 states have call predecessors, (35650), 9013 states have return successors, (36097), 35193 states have call predecessors, (36097), 35649 states have call successors, (36097) [2022-12-14 12:06:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121572 states to 121572 states and 172899 transitions. [2022-12-14 12:06:09,185 INFO L78 Accepts]: Start accepts. Automaton has 121572 states and 172899 transitions. Word has length 441 [2022-12-14 12:06:09,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:06:09,186 INFO L495 AbstractCegarLoop]: Abstraction has 121572 states and 172899 transitions. [2022-12-14 12:06:09,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-12-14 12:06:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 121572 states and 172899 transitions. [2022-12-14 12:06:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-12-14 12:06:09,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:06:09,503 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:06:09,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:06:09,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:06:09,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:06:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:06:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 108428017, now seen corresponding path program 1 times [2022-12-14 12:06:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:06:09,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820080410] [2022-12-14 12:06:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:09,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:06:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:10,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:06:10,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820080410] [2022-12-14 12:06:10,189 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 12:06:10,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791260407] [2022-12-14 12:06:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:10,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:06:10,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:06:10,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:06:10,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:06:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:11,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 7323 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:06:11,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:06:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-12-14 12:06:11,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:06:11,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791260407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:06:11,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:06:11,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:06:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160849525] [2022-12-14 12:06:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:06:11,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:06:11,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:06:11,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:06:11,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:06:11,840 INFO L87 Difference]: Start difference. First operand 121572 states and 172899 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-12-14 12:06:15,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:18,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:06:23,090 INFO L93 Difference]: Finished difference Result 273532 states and 389300 transitions. [2022-12-14 12:06:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:06:23,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 462 [2022-12-14 12:06:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:06:23,694 INFO L225 Difference]: With dead ends: 273532 [2022-12-14 12:06:23,694 INFO L226 Difference]: Without dead ends: 151995 [2022-12-14 12:06:23,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:06:23,975 INFO L413 NwaCegarLoop]: 4901 mSDtfsCounter, 2752 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 7262 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:06:23,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 7262 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 876 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 12:06:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151995 states. [2022-12-14 12:06:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151995 to 151773. [2022-12-14 12:06:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151773 states, 96047 states have (on average 1.3159286599269109) internal successors, (126391), 97774 states have internal predecessors, (126391), 44381 states have call successors, (44381), 11463 states have call predecessors, (44381), 11344 states have return successors, (44924), 43787 states have call predecessors, (44924), 44380 states have call successors, (44924) [2022-12-14 12:06:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151773 states to 151773 states and 215696 transitions. [2022-12-14 12:06:29,234 INFO L78 Accepts]: Start accepts. Automaton has 151773 states and 215696 transitions. Word has length 462 [2022-12-14 12:06:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:06:29,235 INFO L495 AbstractCegarLoop]: Abstraction has 151773 states and 215696 transitions. [2022-12-14 12:06:29,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-12-14 12:06:29,235 INFO L276 IsEmpty]: Start isEmpty. Operand 151773 states and 215696 transitions. [2022-12-14 12:06:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-12-14 12:06:29,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:06:29,416 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:06:29,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 12:06:29,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:06:29,618 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:06:29,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:06:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 824814764, now seen corresponding path program 1 times [2022-12-14 12:06:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:06:29,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515980096] [2022-12-14 12:06:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:06:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-12-14 12:06:30,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:06:30,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515980096] [2022-12-14 12:06:30,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515980096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:06:30,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:06:30,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:06:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508341417] [2022-12-14 12:06:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:06:30,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:06:30,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:06:30,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:06:30,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:06:30,412 INFO L87 Difference]: Start difference. First operand 151773 states and 215696 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 12:06:35,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:39,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:41,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:42,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:06:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:06:49,198 INFO L93 Difference]: Finished difference Result 377866 states and 551292 transitions. [2022-12-14 12:06:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:06:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 469 [2022-12-14 12:06:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:06:50,122 INFO L225 Difference]: With dead ends: 377866 [2022-12-14 12:06:50,123 INFO L226 Difference]: Without dead ends: 226128 [2022-12-14 12:06:50,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:06:50,511 INFO L413 NwaCegarLoop]: 5002 mSDtfsCounter, 1794 mSDsluCounter, 8094 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 267 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 13096 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:06:50,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 13096 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1096 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2022-12-14 12:06:50,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226128 states. [2022-12-14 12:06:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226128 to 151777. [2022-12-14 12:06:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151777 states, 96051 states have (on average 1.3159155032222465) internal successors, (126395), 97778 states have internal predecessors, (126395), 44381 states have call successors, (44381), 11463 states have call predecessors, (44381), 11344 states have return successors, (44924), 43787 states have call predecessors, (44924), 44380 states have call successors, (44924) [2022-12-14 12:06:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151777 states to 151777 states and 215700 transitions. [2022-12-14 12:06:57,186 INFO L78 Accepts]: Start accepts. Automaton has 151777 states and 215700 transitions. Word has length 469 [2022-12-14 12:06:57,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:06:57,187 INFO L495 AbstractCegarLoop]: Abstraction has 151777 states and 215700 transitions. [2022-12-14 12:06:57,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 12:06:57,187 INFO L276 IsEmpty]: Start isEmpty. Operand 151777 states and 215700 transitions. [2022-12-14 12:06:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2022-12-14 12:06:57,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:06:57,378 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:06:57,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:06:57,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:06:57,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:06:57,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2110895862, now seen corresponding path program 1 times [2022-12-14 12:06:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:06:57,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980215676] [2022-12-14 12:06:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:06:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:06:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:06:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-12-14 12:06:58,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:06:58,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980215676] [2022-12-14 12:06:58,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980215676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:06:58,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:06:58,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:06:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920528123] [2022-12-14 12:06:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:06:58,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:06:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:06:58,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:06:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:06:58,069 INFO L87 Difference]: Start difference. First operand 151777 states and 215700 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 12:07:03,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:07:07,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:07:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:16,367 INFO L93 Difference]: Finished difference Result 395165 states and 580132 transitions. [2022-12-14 12:07:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:07:16,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 490 [2022-12-14 12:07:16,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:17,258 INFO L225 Difference]: With dead ends: 395165 [2022-12-14 12:07:17,259 INFO L226 Difference]: Without dead ends: 243423 [2022-12-14 12:07:17,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:07:17,668 INFO L413 NwaCegarLoop]: 4081 mSDtfsCounter, 2507 mSDsluCounter, 6997 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 595 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 11078 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:17,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 11078 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 981 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 12:07:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243423 states. [2022-12-14 12:07:24,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243423 to 151781. [2022-12-14 12:07:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151781 states, 96055 states have (on average 1.3159023476133465) internal successors, (126399), 97782 states have internal predecessors, (126399), 44381 states have call successors, (44381), 11463 states have call predecessors, (44381), 11344 states have return successors, (44924), 43787 states have call predecessors, (44924), 44380 states have call successors, (44924) [2022-12-14 12:07:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151781 states to 151781 states and 215704 transitions. [2022-12-14 12:07:25,387 INFO L78 Accepts]: Start accepts. Automaton has 151781 states and 215704 transitions. Word has length 490 [2022-12-14 12:07:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:25,388 INFO L495 AbstractCegarLoop]: Abstraction has 151781 states and 215704 transitions. [2022-12-14 12:07:25,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 12:07:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 151781 states and 215704 transitions. [2022-12-14 12:07:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-12-14 12:07:25,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:25,594 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:25,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:07:25,594 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:07:25,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1990458252, now seen corresponding path program 1 times [2022-12-14 12:07:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:25,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926641381] [2022-12-14 12:07:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:25,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-12-14 12:07:26,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:26,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926641381] [2022-12-14 12:07:26,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926641381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:26,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:26,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:07:26,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807440297] [2022-12-14 12:07:26,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:26,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:07:26,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:26,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:07:26,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:07:26,687 INFO L87 Difference]: Start difference. First operand 151781 states and 215704 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:07:27,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:07:33,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:07:36,496 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 [] [2022-12-14 12:07:48,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:48,393 INFO L93 Difference]: Finished difference Result 397107 states and 583006 transitions. [2022-12-14 12:07:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:07:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 496 [2022-12-14 12:07:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:49,286 INFO L225 Difference]: With dead ends: 397107 [2022-12-14 12:07:49,286 INFO L226 Difference]: Without dead ends: 245361 [2022-12-14 12:07:49,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:07:49,881 INFO L413 NwaCegarLoop]: 4555 mSDtfsCounter, 3209 mSDsluCounter, 8071 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 561 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3768 SdHoareTripleChecker+Valid, 12626 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:49,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3768 Valid, 12626 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1052 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-12-14 12:07:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245361 states. [2022-12-14 12:07:58,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245361 to 151821. [2022-12-14 12:07:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151821 states, 96087 states have (on average 1.3158804000541175) internal successors, (126439), 97814 states have internal predecessors, (126439), 44389 states have call successors, (44389), 11463 states have call predecessors, (44389), 11344 states have return successors, (44932), 43795 states have call predecessors, (44932), 44388 states have call successors, (44932) [2022-12-14 12:07:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151821 states to 151821 states and 215760 transitions. [2022-12-14 12:07:58,871 INFO L78 Accepts]: Start accepts. Automaton has 151821 states and 215760 transitions. Word has length 496 [2022-12-14 12:07:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:58,872 INFO L495 AbstractCegarLoop]: Abstraction has 151821 states and 215760 transitions. [2022-12-14 12:07:58,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:07:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 151821 states and 215760 transitions. [2022-12-14 12:07:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-12-14 12:07:59,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:59,059 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:59,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:07:59,059 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:07:59,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:59,059 INFO L85 PathProgramCache]: Analyzing trace with hash 198368440, now seen corresponding path program 1 times [2022-12-14 12:07:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:59,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743345510] [2022-12-14 12:07:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:59,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-12-14 12:08:01,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:08:01,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743345510] [2022-12-14 12:08:01,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743345510] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:08:01,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570438729] [2022-12-14 12:08:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:08:01,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:08:01,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:08:01,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:08:01,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:08:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:03,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 7556 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:08:03,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:08:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 130 proven. 17 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-12-14 12:08:03,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:08:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 12:08:03,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570438729] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 12:08:03,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:08:03,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 8 [2022-12-14 12:08:03,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969364489] [2022-12-14 12:08:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:08:03,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:08:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:08:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:08:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:08:03,674 INFO L87 Difference]: Start difference. First operand 151821 states and 215760 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-12-14 12:08:07,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:08:09,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:08:12,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:08:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:08:18,875 INFO L93 Difference]: Finished difference Result 358802 states and 510461 transitions. [2022-12-14 12:08:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:08:18,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 500 [2022-12-14 12:08:18,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:08:19,757 INFO L225 Difference]: With dead ends: 358802 [2022-12-14 12:08:19,757 INFO L226 Difference]: Without dead ends: 207016 [2022-12-14 12:08:20,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 998 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:08:20,125 INFO L413 NwaCegarLoop]: 3309 mSDtfsCounter, 2515 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:08:20,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 5893 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 655 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 12:08:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207016 states. [2022-12-14 12:08:27,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207016 to 206785. [2022-12-14 12:08:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206785 states, 131102 states have (on average 1.3168830376348186) internal successors, (172646), 133439 states have internal predecessors, (172646), 60283 states have call successors, (60283), 15541 states have call predecessors, (60283), 15399 states have return successors, (60986), 59464 states have call predecessors, (60986), 60282 states have call successors, (60986) [2022-12-14 12:08:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206785 states to 206785 states and 293915 transitions. [2022-12-14 12:08:28,873 INFO L78 Accepts]: Start accepts. Automaton has 206785 states and 293915 transitions. Word has length 500 [2022-12-14 12:08:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:08:28,874 INFO L495 AbstractCegarLoop]: Abstraction has 206785 states and 293915 transitions. [2022-12-14 12:08:28,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-12-14 12:08:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 206785 states and 293915 transitions. [2022-12-14 12:08:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-12-14 12:08:29,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:08:29,320 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:08:29,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:08:29,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:08:29,523 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:08:29,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:08:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1736885957, now seen corresponding path program 1 times [2022-12-14 12:08:29,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:08:29,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594326013] [2022-12-14 12:08:29,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:08:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:08:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-12-14 12:08:31,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:08:31,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594326013] [2022-12-14 12:08:31,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594326013] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:08:31,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694769578] [2022-12-14 12:08:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:08:31,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:08:31,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:08:31,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:08:31,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:08:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:08:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 7659 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 12:08:33,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:08:33,807 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-12-14 12:08:33,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:08:33,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694769578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:08:33,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:08:33,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-12-14 12:08:33,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101194869] [2022-12-14 12:08:33,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:08:33,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:08:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:08:33,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:08:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:08:33,809 INFO L87 Difference]: Start difference. First operand 206785 states and 293915 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-12-14 12:08:36,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:08:42,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:08:46,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:09:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:09:00,114 INFO L93 Difference]: Finished difference Result 477407 states and 681314 transitions. [2022-12-14 12:09:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:09:00,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 527 [2022-12-14 12:09:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:09:01,203 INFO L225 Difference]: With dead ends: 477407 [2022-12-14 12:09:01,203 INFO L226 Difference]: Without dead ends: 270657 [2022-12-14 12:09:01,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:09:01,890 INFO L413 NwaCegarLoop]: 5429 mSDtfsCounter, 2916 mSDsluCounter, 6436 mSDsCounter, 0 mSdLazyCounter, 2936 mSolverCounterSat, 104 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 11865 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2936 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:09:01,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3071 Valid, 11865 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2936 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2022-12-14 12:09:02,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270657 states. [2022-12-14 12:09:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270657 to 261239. [2022-12-14 12:09:13,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261239 states, 165610 states have (on average 1.3168407704848741) internal successors, (218082), 168557 states have internal predecessors, (218082), 76177 states have call successors, (76177), 19617 states have call predecessors, (76177), 19451 states have return successors, (77040), 75132 states have call predecessors, (77040), 76176 states have call successors, (77040) [2022-12-14 12:09:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261239 states to 261239 states and 371299 transitions. [2022-12-14 12:09:14,428 INFO L78 Accepts]: Start accepts. Automaton has 261239 states and 371299 transitions. Word has length 527 [2022-12-14 12:09:14,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:09:14,429 INFO L495 AbstractCegarLoop]: Abstraction has 261239 states and 371299 transitions. [2022-12-14 12:09:14,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-12-14 12:09:14,429 INFO L276 IsEmpty]: Start isEmpty. Operand 261239 states and 371299 transitions. [2022-12-14 12:09:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-12-14 12:09:14,757 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:09:14,758 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:09:14,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 12:09:14,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 12:09:14,961 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:09:14,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:09:14,962 INFO L85 PathProgramCache]: Analyzing trace with hash 665196792, now seen corresponding path program 1 times [2022-12-14 12:09:14,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:09:14,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412435962] [2022-12-14 12:09:14,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:09:14,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:09:15,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:09:15,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274386547] [2022-12-14 12:09:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:09:15,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:09:15,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:09:15,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:09:15,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 12:09:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:09:17,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 7836 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 12:09:17,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:09:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-12-14 12:09:17,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:09:17,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:09:17,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412435962] [2022-12-14 12:09:17,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:09:17,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274386547] [2022-12-14 12:09:17,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274386547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:09:17,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:09:17,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 12:09:17,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617257788] [2022-12-14 12:09:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:09:17,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:09:17,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:09:17,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:09:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:09:17,303 INFO L87 Difference]: Start difference. First operand 261239 states and 371299 transitions. Second operand has 7 states, 5 states have (on average 45.2) internal successors, (226), 6 states have internal predecessors, (226), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 12:09:25,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:09:29,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:00,746 INFO L93 Difference]: Finished difference Result 737204 states and 1090670 transitions. [2022-12-14 12:10:00,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 12:10:00,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 45.2) internal successors, (226), 6 states have internal predecessors, (226), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 534 [2022-12-14 12:10:00,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:02,731 INFO L225 Difference]: With dead ends: 737204 [2022-12-14 12:10:02,731 INFO L226 Difference]: Without dead ends: 476000 [2022-12-14 12:10:03,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:10:03,530 INFO L413 NwaCegarLoop]: 4955 mSDtfsCounter, 2798 mSDsluCounter, 23101 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 555 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 28056 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:03,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3343 Valid, 28056 Invalid, 3326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [555 Valid, 2769 Invalid, 2 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 12:10:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476000 states. [2022-12-14 12:10:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476000 to 261335. [2022-12-14 12:10:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261335 states, 165682 states have (on average 1.3167030818073175) internal successors, (218154), 168629 states have internal predecessors, (218154), 76201 states have call successors, (76201), 19617 states have call predecessors, (76201), 19451 states have return successors, (77064), 75156 states have call predecessors, (77064), 76200 states have call successors, (77064) [2022-12-14 12:10:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261335 states to 261335 states and 371419 transitions. [2022-12-14 12:10:20,110 INFO L78 Accepts]: Start accepts. Automaton has 261335 states and 371419 transitions. Word has length 534 [2022-12-14 12:10:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:20,111 INFO L495 AbstractCegarLoop]: Abstraction has 261335 states and 371419 transitions. [2022-12-14 12:10:20,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 45.2) internal successors, (226), 6 states have internal predecessors, (226), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 12:10:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 261335 states and 371419 transitions. [2022-12-14 12:10:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-12-14 12:10:20,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:20,463 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:20,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 12:10:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 12:10:20,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:10:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:20,667 INFO L85 PathProgramCache]: Analyzing trace with hash 170856563, now seen corresponding path program 1 times [2022-12-14 12:10:20,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:20,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473416874] [2022-12-14 12:10:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:20,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:20,994 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:10:20,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876652400] [2022-12-14 12:10:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:20,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:10:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:10:20,996 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:10:20,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 12:10:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:22,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 7960 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 12:10:22,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:10:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-12-14 12:10:22,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:10:22,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473416874] [2022-12-14 12:10:22,981 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:10:22,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876652400] [2022-12-14 12:10:22,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876652400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:22,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:22,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 12:10:22,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883143015] [2022-12-14 12:10:22,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:22,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:10:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:10:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:10:22,983 INFO L87 Difference]: Start difference. First operand 261335 states and 371419 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2022-12-14 12:10:27,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:31,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:52,553 INFO L93 Difference]: Finished difference Result 614706 states and 875818 transitions. [2022-12-14 12:10:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:10:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 546 [2022-12-14 12:10:52,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:54,157 INFO L225 Difference]: With dead ends: 614706 [2022-12-14 12:10:54,158 INFO L226 Difference]: Without dead ends: 353406 [2022-12-14 12:10:54,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:10:54,856 INFO L413 NwaCegarLoop]: 5510 mSDtfsCounter, 4176 mSDsluCounter, 6044 mSDsCounter, 0 mSdLazyCounter, 5635 mSolverCounterSat, 565 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 11554 SdHoareTripleChecker+Invalid, 6202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 5635 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:54,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 11554 Invalid, 6202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 5635 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 12:10:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353406 states. [2022-12-14 12:11:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353406 to 288310. [2022-12-14 12:11:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288310 states, 182660 states have (on average 1.3173108507609768) internal successors, (240620), 185912 states have internal predecessors, (240620), 84172 states have call successors, (84172), 21655 states have call predecessors, (84172), 21477 states have return successors, (85115), 83014 states have call predecessors, (85115), 84171 states have call successors, (85115) [2022-12-14 12:11:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288310 states to 288310 states and 409907 transitions. [2022-12-14 12:11:09,686 INFO L78 Accepts]: Start accepts. Automaton has 288310 states and 409907 transitions. Word has length 546 [2022-12-14 12:11:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:09,687 INFO L495 AbstractCegarLoop]: Abstraction has 288310 states and 409907 transitions. [2022-12-14 12:11:09,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2022-12-14 12:11:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 288310 states and 409907 transitions. [2022-12-14 12:11:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-12-14 12:11:10,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:10,231 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:10,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 12:11:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:11:10,433 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:11:10,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:10,435 INFO L85 PathProgramCache]: Analyzing trace with hash 432810239, now seen corresponding path program 1 times [2022-12-14 12:11:10,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:10,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785755952] [2022-12-14 12:11:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:10,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-12-14 12:11:12,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:12,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785755952] [2022-12-14 12:11:12,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785755952] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:11:12,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358648435] [2022-12-14 12:11:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:12,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:11:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:11:12,257 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:11:12,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 12:11:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:14,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 7709 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 12:11:14,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:11:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 114 proven. 17 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-12-14 12:11:14,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:11:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2022-12-14 12:11:14,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358648435] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 12:11:14,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:11:14,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2022-12-14 12:11:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530349848] [2022-12-14 12:11:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:14,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:11:14,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:14,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:11:14,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:11:14,551 INFO L87 Difference]: Start difference. First operand 288310 states and 409907 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-12-14 12:11:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:23,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:43,501 INFO L93 Difference]: Finished difference Result 680766 states and 977946 transitions. [2022-12-14 12:11:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:11:43,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 549 [2022-12-14 12:11:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:45,159 INFO L225 Difference]: With dead ends: 680766 [2022-12-14 12:11:45,160 INFO L226 Difference]: Without dead ends: 392491 [2022-12-14 12:11:45,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1094 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:11:45,988 INFO L413 NwaCegarLoop]: 3952 mSDtfsCounter, 3064 mSDsluCounter, 4729 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 89 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 8681 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:45,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 8681 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2581 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 12:11:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392491 states. [2022-12-14 12:12:00,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392491 to 288334. [2022-12-14 12:12:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288334 states, 182684 states have (on average 1.3172691642398897) internal successors, (240644), 185936 states have internal predecessors, (240644), 84172 states have call successors, (84172), 21655 states have call predecessors, (84172), 21477 states have return successors, (85115), 83014 states have call predecessors, (85115), 84171 states have call successors, (85115) [2022-12-14 12:12:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288334 states to 288334 states and 409931 transitions. [2022-12-14 12:12:02,254 INFO L78 Accepts]: Start accepts. Automaton has 288334 states and 409931 transitions. Word has length 549 [2022-12-14 12:12:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:02,255 INFO L495 AbstractCegarLoop]: Abstraction has 288334 states and 409931 transitions. [2022-12-14 12:12:02,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-12-14 12:12:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 288334 states and 409931 transitions. [2022-12-14 12:12:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-12-14 12:12:02,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:02,657 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:02,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 12:12:02,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 12:12:02,859 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:12:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:02,861 INFO L85 PathProgramCache]: Analyzing trace with hash -40945822, now seen corresponding path program 1 times [2022-12-14 12:12:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:02,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994242004] [2022-12-14 12:12:02,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:02,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:03,172 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:12:03,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975780369] [2022-12-14 12:12:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:03,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:12:03,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:12:03,173 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:12:03,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 12:12:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:05,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 8083 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 12:12:05,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:12:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-12-14 12:12:05,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:12:05,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:05,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994242004] [2022-12-14 12:12:05,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:12:05,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975780369] [2022-12-14 12:12:05,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975780369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:05,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:05,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 12:12:05,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141220383] [2022-12-14 12:12:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:05,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:12:05,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:12:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:12:05,391 INFO L87 Difference]: Start difference. First operand 288334 states and 409931 transitions. Second operand has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-12-14 12:12:10,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:15,319 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 [] [2022-12-14 12:12:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:43,450 INFO L93 Difference]: Finished difference Result 677997 states and 967614 transitions. [2022-12-14 12:12:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:12:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) Word has length 565 [2022-12-14 12:12:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:45,264 INFO L225 Difference]: With dead ends: 677997 [2022-12-14 12:12:45,264 INFO L226 Difference]: Without dead ends: 389698 [2022-12-14 12:12:46,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:12:46,067 INFO L413 NwaCegarLoop]: 6167 mSDtfsCounter, 4871 mSDsluCounter, 7631 mSDsCounter, 0 mSdLazyCounter, 8341 mSolverCounterSat, 1216 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 13798 SdHoareTripleChecker+Invalid, 9559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 8341 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:46,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 13798 Invalid, 9559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 8341 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2022-12-14 12:12:46,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389698 states. [2022-12-14 12:13:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389698 to 288454. [2022-12-14 12:13:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288454 states, 182780 states have (on average 1.3172338330233067) internal successors, (240764), 186032 states have internal predecessors, (240764), 84196 states have call successors, (84196), 21655 states have call predecessors, (84196), 21477 states have return successors, (85139), 83038 states have call predecessors, (85139), 84195 states have call successors, (85139) [2022-12-14 12:13:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288454 states to 288454 states and 410099 transitions. [2022-12-14 12:13:02,863 INFO L78 Accepts]: Start accepts. Automaton has 288454 states and 410099 transitions. Word has length 565 [2022-12-14 12:13:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:13:02,864 INFO L495 AbstractCegarLoop]: Abstraction has 288454 states and 410099 transitions. [2022-12-14 12:13:02,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-12-14 12:13:02,864 INFO L276 IsEmpty]: Start isEmpty. Operand 288454 states and 410099 transitions. [2022-12-14 12:13:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2022-12-14 12:13:03,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:13:03,280 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:13:03,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 12:13:03,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 12:13:03,483 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:13:03,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:13:03,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1625152557, now seen corresponding path program 1 times [2022-12-14 12:13:03,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:13:03,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297500191] [2022-12-14 12:13:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:13:03,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:13:03,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:13:03,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418632151] [2022-12-14 12:13:03,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:13:03,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:13:03,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:13:03,809 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:13:03,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 12:13:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:13:05,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 8010 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 12:13:05,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:13:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 120 proven. 17 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-12-14 12:13:06,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:13:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2022-12-14 12:13:06,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:13:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297500191] [2022-12-14 12:13:06,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:13:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418632151] [2022-12-14 12:13:06,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418632151] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 12:13:06,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:13:06,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-12-14 12:13:06,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002369903] [2022-12-14 12:13:06,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:13:06,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:13:06,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:13:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:13:06,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:13:06,394 INFO L87 Difference]: Start difference. First operand 288454 states and 410099 transitions. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 4 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2022-12-14 12:13:14,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:18,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:20,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:22,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:24,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:33,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:13:35,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:14:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:05,384 INFO L93 Difference]: Finished difference Result 780070 states and 1138662 transitions. [2022-12-14 12:14:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:14:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 4 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 568 [2022-12-14 12:14:05,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:07,492 INFO L225 Difference]: With dead ends: 780070 [2022-12-14 12:14:07,492 INFO L226 Difference]: Without dead ends: 491651 [2022-12-14 12:14:08,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1139 GetRequests, 1127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-12-14 12:14:08,413 INFO L413 NwaCegarLoop]: 4613 mSDtfsCounter, 4747 mSDsluCounter, 9395 mSDsCounter, 0 mSdLazyCounter, 7694 mSolverCounterSat, 1000 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 14008 SdHoareTripleChecker+Invalid, 8699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 7694 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:08,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 14008 Invalid, 8699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1000 Valid, 7694 Invalid, 5 Unknown, 0 Unchecked, 28.6s Time] [2022-12-14 12:14:08,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491651 states. [2022-12-14 12:14:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491651 to 288550. [2022-12-14 12:14:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288550 states, 182852 states have (on average 1.3172401723798481) internal successors, (240860), 186104 states have internal predecessors, (240860), 84220 states have call successors, (84220), 21655 states have call predecessors, (84220), 21477 states have return successors, (85163), 83062 states have call predecessors, (85163), 84219 states have call successors, (85163) [2022-12-14 12:14:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288550 states to 288550 states and 410243 transitions. [2022-12-14 12:14:28,501 INFO L78 Accepts]: Start accepts. Automaton has 288550 states and 410243 transitions. Word has length 568 [2022-12-14 12:14:28,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:28,502 INFO L495 AbstractCegarLoop]: Abstraction has 288550 states and 410243 transitions. [2022-12-14 12:14:28,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 4 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2022-12-14 12:14:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 288550 states and 410243 transitions. [2022-12-14 12:14:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2022-12-14 12:14:28,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:28,975 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:29,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 12:14:29,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:14:29,176 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:14:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1861545408, now seen corresponding path program 1 times [2022-12-14 12:14:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:29,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604797614] [2022-12-14 12:14:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:29,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:29,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:14:29,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739744286] [2022-12-14 12:14:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:29,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:14:29,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:14:29,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:14:29,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ef180-641a-420f-99bd-2cb15ed355d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 12:14:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:32,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 8141 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 12:14:32,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:14:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-12-14 12:14:32,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:14:32,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:32,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604797614] [2022-12-14 12:14:32,460 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:14:32,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739744286] [2022-12-14 12:14:32,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739744286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:32,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:32,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 12:14:32,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133061641] [2022-12-14 12:14:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:32,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:14:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:14:32,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:14:32,462 INFO L87 Difference]: Start difference. First operand 288550 states and 410243 transitions. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 4 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2022-12-14 12:14:39,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:14:44,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []