./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/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_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/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_ad93e7ea-d52d-4482-9a49-c96d57da766f/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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- 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 12:25:15,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:25:15,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:25:15,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:25:15,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:25:15,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:25:15,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:25:15,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:25:15,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:25:15,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:25:15,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:25:15,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:25:15,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:25:15,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:25:15,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:25:15,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:25:15,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:25:15,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:25:15,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:25:15,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:25:15,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:25:15,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:25:15,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:25:15,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:25:15,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:25:15,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:25:15,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:25:15,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:25:15,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:25:15,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:25:15,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:25:15,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:25:15,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:25:15,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:25:15,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:25:15,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:25:15,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:25:15,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:25:15,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:25:15,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:25:15,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:25:15,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:25:15,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:25:15,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:25:15,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:25:15,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:25:15,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:25:15,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:25:15,354 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:25:15,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:25:15,355 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:25:15,355 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:25:15,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:25:15,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:25:15,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:25:15,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:25:15,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:25:15,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:25:15,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:25:15,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:25:15,357 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:25:15,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:25:15,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:25:15,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:25:15,357 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_ad93e7ea-d52d-4482-9a49-c96d57da766f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2022-12-14 12:25:15,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:25:15,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:25:15,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:25:15,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:25:15,552 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:25:15,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-12-14 12:25:18,170 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:25:18,534 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:25:18,534 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-12-14 12:25:18,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/data/08d36b8cb/6af7f329dd4144f4ba095175df80ef7a/FLAG26fbef3f6 [2022-12-14 12:25:18,581 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/data/08d36b8cb/6af7f329dd4144f4ba095175df80ef7a [2022-12-14 12:25:18,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:25:18,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:25:18,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:25:18,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:25:18,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:25:18,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:25:18" (1/1) ... [2022-12-14 12:25:18,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5c34e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:18, skipping insertion in model container [2022-12-14 12:25:18,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:25:18" (1/1) ... [2022-12-14 12:25:18,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:25:18,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:25:19,308 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:25:19,319 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_trylock [2022-12-14 12:25:19,331 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:25:19,342 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 12:25:19,376 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 12:25:19,473 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:25:19,474 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:25:19,475 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:25:19,475 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:25:19,481 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:25:19,481 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:25:19,482 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:25:19,483 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:25:19,527 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:25:19,531 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:25:19,531 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:25:19,537 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:25:19,543 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:25:19,548 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:25:19,554 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 12:25:19,577 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 12:25:19,582 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:25:19,583 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 12:25:19,588 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 12:25:19,659 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:25:19,660 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:25:19,703 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 12:25:19,703 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 12:25:19,711 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:25:19,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,741 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 12:25:19,779 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 12:25:19,836 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 12:25:19,875 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 12:25:19,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,933 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:25:19,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,947 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:19,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:19,948 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:25:19,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:19,953 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:19,953 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:19,958 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 12:25:19,963 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 12:25:19,963 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 12:25:19,968 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 12:25:19,969 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,969 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,970 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,970 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 12:25:19,970 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:19,986 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:19,990 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,991 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:19,996 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,997 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:19,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,001 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:20,002 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:20,002 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:20,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,025 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:25:20,035 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,036 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,037 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,037 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,049 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:20,086 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:20,108 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:20,113 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 12:25:20,119 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 12:25:20,129 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:25:20,129 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:25:20,151 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:20,162 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:20,170 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 12:25:20,171 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 12:25:20,171 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 12:25:20,183 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 12:25:20,189 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:20,194 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:25:20,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,195 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 12:25:20,196 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:25:20,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,199 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 12:25:20,200 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:25:20,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,200 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:20,201 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 12:25:20,201 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:25:20,201 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:25:20,201 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:20,211 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:20,211 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:20,212 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:20,212 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:20,254 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 12:25:20,255 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:25:20,255 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:25:20,255 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:20,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:20,419 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:25:20,421 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:25:20,423 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 12:25:20,423 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 12:25:20,429 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 12:25:20,430 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 12:25:20,434 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 12:25:20,435 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 12:25:20,436 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 12:25:20,436 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:25:20,436 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 12:25:20,436 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:25:20,437 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 12:25:20,437 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 12:25:20,482 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:25:20,489 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,536 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,539 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,542 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,546 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,559 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,563 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,566 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,570 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,574 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,588 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,592 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,596 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,599 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,617 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,621 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,625 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,629 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,633 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,647 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,651 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,655 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,658 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,662 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,676 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,680 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,683 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,687 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,691 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,705 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,708 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,712 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,716 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,719 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,734 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,738 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,741 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,745 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,749 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,764 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,767 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,771 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,775 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,779 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,793 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,797 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,801 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,805 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,808 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,823 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,827 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,830 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,834 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,851 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,865 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,870 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,873 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,877 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,881 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,896 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,900 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,903 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,908 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,911 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,925 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,929 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,933 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,936 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,940 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,955 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,955 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,955 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,956 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,959 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,973 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,976 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,976 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,976 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,976 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,976 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:20,994 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_ad93e7ea-d52d-4482-9a49-c96d57da766f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-12-14 12:25:20,997 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_ad93e7ea-d52d-4482-9a49-c96d57da766f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-12-14 12:25:21,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:25:21,041 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:25:21,102 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 12:25:21,102 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_trylock [2022-12-14 12:25:21,103 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 12:25:21,103 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 12:25:21,103 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 12:25:21,105 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:25:21,105 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:25:21,105 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:25:21,105 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:25:21,105 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:25:21,106 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:25:21,106 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:25:21,106 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:25:21,109 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:25:21,110 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 12:25:21,110 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:25:21,111 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:25:21,111 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 12:25:21,112 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 12:25:21,113 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 12:25:21,114 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 12:25:21,115 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:25:21,115 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 12:25:21,116 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 12:25:21,118 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:25:21,119 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 12:25:21,120 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 12:25:21,120 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 12:25:21,121 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:25:21,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,122 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 12:25:21,122 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 12:25:21,125 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 12:25:21,126 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 12:25:21,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,128 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,128 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,129 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 12:25:21,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,142 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:21,143 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,143 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:25:21,143 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,144 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,144 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,145 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 12:25:21,146 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 12:25:21,146 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 12:25:21,147 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 12:25:21,147 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,148 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,148 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,148 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 12:25:21,148 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,151 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:21,152 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,152 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,153 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,154 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,154 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,155 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,155 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,159 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:25:21,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,162 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,168 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:21,171 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,172 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 12:25:21,174 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 12:25:21,178 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:25:21,178 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:25:21,182 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:21,185 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 12:25:21,187 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 12:25:21,187 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 12:25:21,187 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 12:25:21,194 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 12:25:21,195 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 12:25:21,197 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 12:25:21,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,197 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 12:25:21,198 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 12:25:21,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,203 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 12:25:21,204 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:25:21,204 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,205 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:25:21,205 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 12:25:21,205 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:25:21,205 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:25:21,206 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:21,207 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:21,208 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:21,208 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:21,208 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:25:21,246 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 12:25:21,247 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 12:25:21,247 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 12:25:21,247 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 12:25:21,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:25:21,252 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:25:21,254 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:25:21,255 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 12:25:21,255 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 12:25:21,261 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 12:25:21,262 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 12:25:21,270 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 12:25:21,272 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 12:25:21,272 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 12:25:21,272 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:25:21,272 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 12:25:21,273 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:25:21,273 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 12:25:21,273 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 12:25:21,276 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:25:21,276 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,279 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,280 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,280 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,280 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,281 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,281 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,281 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,282 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,282 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,285 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,285 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,285 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,286 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,286 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,287 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,287 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,287 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,288 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,288 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,288 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,289 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,289 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,289 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,290 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,290 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,291 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,291 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,291 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,292 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,292 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,293 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,293 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,293 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,294 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,294 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,295 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,295 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,295 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,296 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,296 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,297 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,297 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,297 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,297 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,298 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,298 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,299 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,299 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,299 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,300 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,300 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,301 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,301 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,301 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,302 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,302 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,303 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,303 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,303 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,304 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,305 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,305 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,305 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,306 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,306 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,307 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,307 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,307 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,308 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,308 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,309 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,309 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,309 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,309 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,309 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,310 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,311 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,311 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,311 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:25:21,312 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_ad93e7ea-d52d-4482-9a49-c96d57da766f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-12-14 12:25:21,313 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_ad93e7ea-d52d-4482-9a49-c96d57da766f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-12-14 12:25:21,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:25:21,442 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:25:21,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21 WrapperNode [2022-12-14 12:25:21,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:25:21,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:25:21,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:25:21,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:25:21,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,672 INFO L138 Inliner]: procedures = 490, calls = 2384, calls flagged for inlining = 232, calls inlined = 186, statements flattened = 4666 [2022-12-14 12:25:21,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:25:21,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:25:21,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:25:21,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:25:21,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:25:21,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:25:21,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:25:21,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:25:21,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (1/1) ... [2022-12-14 12:25:21,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:25:21,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:25:21,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:25:21,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:25:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 12:25:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 12:25:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 12:25:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 12:25:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 12:25:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 12:25:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 12:25:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 12:25:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_open [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_open [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 12:25:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_wptr [2022-12-14 12:25:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_wptr [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 12:25:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 12:25:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_tx_db_ptr_next [2022-12-14 12:25:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_tx_db_ptr_next [2022-12-14 12:25:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_close [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_close [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-12-14 12:25:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-14 12:25:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_restore_mac [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_restore_mac [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rx_alloc_skbs [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rx_alloc_skbs [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 12:25:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 12:25:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 12:25:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 12:25:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_available [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_available [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_addr_elem [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_addr_elem [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-12-14 12:25:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:25:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_rptr [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_rptr [2022-12-14 12:25:21,920 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 12:25:21,920 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 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_vlan_rx_vid [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_vlan_rx_vid [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 12:25:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_free [2022-12-14 12:25:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_free [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_remove [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_remove [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 12:25:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:25:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_reset [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_reset [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_alloc_elem [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_alloc_elem [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_range_check [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_range_check [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 12:25:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 12:25:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_init [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_init [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_link_changed [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_link_changed [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_setmulti [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_setmulti [2022-12-14 12:25:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure print_rxfd [2022-12-14 12:25:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure print_rxfd [2022-12-14 12:25:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 12:25:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 12:25:21,924 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 12:25:21,924 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 12:25:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 12:25:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 12:25:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:25:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 12:25:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 12:25:22,457 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:25:22,460 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:25:22,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 12:27:55,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 12:27:55,706 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:27:58,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:27:58,414 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:27:58,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:27:58 BoogieIcfgContainer [2022-12-14 12:27:58,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:27:58,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:27:58,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:27:58,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:27:58,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:25:18" (1/3) ... [2022-12-14 12:27:58,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34399fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:27:58, skipping insertion in model container [2022-12-14 12:27:58,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:25:21" (2/3) ... [2022-12-14 12:27:58,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34399fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:27:58, skipping insertion in model container [2022-12-14 12:27:58,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:27:58" (3/3) ... [2022-12-14 12:27:58,426 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-12-14 12:27:58,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:27:58,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:27:58,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:27:58,511 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;@56cf6923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:27:58,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:27:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 1231 states, 720 states have (on average 1.275) internal successors, (918), 743 states have internal predecessors, (918), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-12-14 12:27:58,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 12:27:58,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:27:58,540 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:58,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:27:58,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:27:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash 651404240, now seen corresponding path program 1 times [2022-12-14 12:27:58,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:27:58,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880875633] [2022-12-14 12:27:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:27:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:27:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:27:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-14 12:27:59,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:27:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880875633] [2022-12-14 12:27:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880875633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:27:59,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:27:59,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:27:59,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177247408] [2022-12-14 12:27:59,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:27:59,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:27:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:27:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:27:59,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:27:59,798 INFO L87 Difference]: Start difference. First operand has 1231 states, 720 states have (on average 1.275) internal successors, (918), 743 states have internal predecessors, (918), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 12:28:01,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:28:06,585 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 12:28:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:07,205 INFO L93 Difference]: Finished difference Result 3387 states and 4870 transitions. [2022-12-14 12:28:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:28:07,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2022-12-14 12:28:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:07,228 INFO L225 Difference]: With dead ends: 3387 [2022-12-14 12:28:07,229 INFO L226 Difference]: Without dead ends: 2110 [2022-12-14 12:28:07,237 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 12:28:07,239 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 1308 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:07,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 3423 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-12-14 12:28:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2022-12-14 12:28:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2105. [2022-12-14 12:28:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2105 states, 1262 states have (on average 1.2567353407290016) internal successors, (1586), 1298 states have internal predecessors, (1586), 682 states have call successors, (682), 159 states have call predecessors, (682), 159 states have return successors, (682), 677 states have call predecessors, (682), 682 states have call successors, (682) [2022-12-14 12:28:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2950 transitions. [2022-12-14 12:28:07,404 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2950 transitions. Word has length 86 [2022-12-14 12:28:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:07,405 INFO L495 AbstractCegarLoop]: Abstraction has 2105 states and 2950 transitions. [2022-12-14 12:28:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 12:28:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2950 transitions. [2022-12-14 12:28:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 12:28:07,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:07,409 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:28:07,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:28:07,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:07,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:07,410 INFO L85 PathProgramCache]: Analyzing trace with hash 12022155, now seen corresponding path program 1 times [2022-12-14 12:28:07,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:07,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925217988] [2022-12-14 12:28:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:07,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-14 12:28:08,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:08,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925217988] [2022-12-14 12:28:08,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925217988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:28:08,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:28:08,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:28:08,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235550353] [2022-12-14 12:28:08,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:28:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:28:08,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:28:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:28:08,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:28:08,440 INFO L87 Difference]: Start difference. First operand 2105 states and 2950 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 12:28:10,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:28:13,988 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 12:28:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:15,502 INFO L93 Difference]: Finished difference Result 5836 states and 8157 transitions. [2022-12-14 12:28:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:28:15,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2022-12-14 12:28:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:15,519 INFO L225 Difference]: With dead ends: 5836 [2022-12-14 12:28:15,519 INFO L226 Difference]: Without dead ends: 3742 [2022-12-14 12:28:15,526 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 12:28:15,527 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 1560 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:15,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 3073 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 12:28:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-12-14 12:28:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3735. [2022-12-14 12:28:15,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2246 states have (on average 1.257346393588602) internal successors, (2824), 2311 states have internal predecessors, (2824), 1188 states have call successors, (1188), 300 states have call predecessors, (1188), 299 states have return successors, (1200), 1173 states have call predecessors, (1200), 1188 states have call successors, (1200) [2022-12-14 12:28:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5212 transitions. [2022-12-14 12:28:15,701 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5212 transitions. Word has length 93 [2022-12-14 12:28:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:15,702 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5212 transitions. [2022-12-14 12:28:15,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 12:28:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5212 transitions. [2022-12-14 12:28:15,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 12:28:15,705 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:15,705 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:28:15,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:28:15,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:15,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1636195042, now seen corresponding path program 1 times [2022-12-14 12:28:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059710253] [2022-12-14 12:28:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:15,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-12-14 12:28:16,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:16,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059710253] [2022-12-14 12:28:16,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059710253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:28:16,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:28:16,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:28:16,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301402961] [2022-12-14 12:28:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:28:16,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:28:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:28:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:28:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:28:16,571 INFO L87 Difference]: Start difference. First operand 3735 states and 5212 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 12:28:18,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:28:23,883 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 12:28:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:24,672 INFO L93 Difference]: Finished difference Result 9019 states and 12577 transitions. [2022-12-14 12:28:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:28:24,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2022-12-14 12:28:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:24,692 INFO L225 Difference]: With dead ends: 9019 [2022-12-14 12:28:24,692 INFO L226 Difference]: Without dead ends: 5295 [2022-12-14 12:28:24,701 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 12:28:24,702 INFO L413 NwaCegarLoop]: 2512 mSDtfsCounter, 1263 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:24,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 3906 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 713 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 12:28:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-12-14 12:28:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 5289. [2022-12-14 12:28:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 3187 states have (on average 1.2532161907750234) internal successors, (3994), 3278 states have internal predecessors, (3994), 1670 states have call successors, (1670), 431 states have call predecessors, (1670), 430 states have return successors, (1683), 1649 states have call predecessors, (1683), 1670 states have call successors, (1683) [2022-12-14 12:28:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7347 transitions. [2022-12-14 12:28:24,919 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7347 transitions. Word has length 130 [2022-12-14 12:28:24,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:24,920 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 7347 transitions. [2022-12-14 12:28:24,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 12:28:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7347 transitions. [2022-12-14 12:28:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-14 12:28:24,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:24,925 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 12:28:24,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:28:24,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:24,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1835475459, now seen corresponding path program 1 times [2022-12-14 12:28:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:24,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685284810] [2022-12-14 12:28:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-12-14 12:28:25,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685284810] [2022-12-14 12:28:25,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685284810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:28:25,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:28:25,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:28:25,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277509959] [2022-12-14 12:28:25,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:28:25,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:28:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:28:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:28:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:28:25,952 INFO L87 Difference]: Start difference. First operand 5289 states and 7347 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 12:28:28,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:28:32,370 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 12:28:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:28:33,109 INFO L93 Difference]: Finished difference Result 10573 states and 14690 transitions. [2022-12-14 12:28:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:28:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2022-12-14 12:28:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:28:33,128 INFO L225 Difference]: With dead ends: 10573 [2022-12-14 12:28:33,128 INFO L226 Difference]: Without dead ends: 5295 [2022-12-14 12:28:33,139 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 12:28:33,139 INFO L413 NwaCegarLoop]: 1435 mSDtfsCounter, 0 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:28:33,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2869 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 12:28:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-12-14 12:28:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 5295. [2022-12-14 12:28:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 3193 states have (on average 1.252740369558409) internal successors, (4000), 3284 states have internal predecessors, (4000), 1670 states have call successors, (1670), 431 states have call predecessors, (1670), 430 states have return successors, (1683), 1649 states have call predecessors, (1683), 1670 states have call successors, (1683) [2022-12-14 12:28:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 7353 transitions. [2022-12-14 12:28:33,294 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 7353 transitions. Word has length 192 [2022-12-14 12:28:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:28:33,295 INFO L495 AbstractCegarLoop]: Abstraction has 5295 states and 7353 transitions. [2022-12-14 12:28:33,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 12:28:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 7353 transitions. [2022-12-14 12:28:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-14 12:28:33,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:28:33,300 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 12:28:33,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:28:33,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:28:33,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:28:33,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1884305318, now seen corresponding path program 1 times [2022-12-14 12:28:33,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:28:33,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503309872] [2022-12-14 12:28:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:33,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:28:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-12-14 12:28:34,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:28:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503309872] [2022-12-14 12:28:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503309872] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:28:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770545830] [2022-12-14 12:28:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:28:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:28:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:28:34,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:28:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:28:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:28:35,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 4812 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 12:28:35,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:29:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-14 12:29:09,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:29:09,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770545830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:09,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:29:09,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-12-14 12:29:09,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746639710] [2022-12-14 12:29:09,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:09,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:29:09,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:09,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:29:09,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:29:09,097 INFO L87 Difference]: Start difference. First operand 5295 states and 7353 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-12-14 12:29:11,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:23,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:26,034 INFO L93 Difference]: Finished difference Result 9903 states and 13711 transitions. [2022-12-14 12:29:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:29:26,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 193 [2022-12-14 12:29:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:26,073 INFO L225 Difference]: With dead ends: 9903 [2022-12-14 12:29:26,074 INFO L226 Difference]: Without dead ends: 9901 [2022-12-14 12:29:26,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:29:26,079 INFO L413 NwaCegarLoop]: 1791 mSDtfsCounter, 1365 mSDsluCounter, 6122 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 7913 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:26,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 7913 Invalid, 1943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1941 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2022-12-14 12:29:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2022-12-14 12:29:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 9893. [2022-12-14 12:29:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9893 states, 5998 states have (on average 1.2577525841947317) internal successors, (7544), 6171 states have internal predecessors, (7544), 3065 states have call successors, (3065), 830 states have call predecessors, (3065), 828 states have return successors, (3090), 3023 states have call predecessors, (3090), 3065 states have call successors, (3090) [2022-12-14 12:29:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9893 states to 9893 states and 13699 transitions. [2022-12-14 12:29:26,579 INFO L78 Accepts]: Start accepts. Automaton has 9893 states and 13699 transitions. Word has length 193 [2022-12-14 12:29:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:26,580 INFO L495 AbstractCegarLoop]: Abstraction has 9893 states and 13699 transitions. [2022-12-14 12:29:26,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-12-14 12:29:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 9893 states and 13699 transitions. [2022-12-14 12:29:26,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-12-14 12:29:26,593 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:26,593 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-12-14 12:29:26,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:29:26,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:29:26,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:26,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1522204733, now seen corresponding path program 1 times [2022-12-14 12:29:26,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:26,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017002951] [2022-12-14 12:29:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-12-14 12:29:27,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:27,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017002951] [2022-12-14 12:29:27,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017002951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:27,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:27,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:29:27,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696342229] [2022-12-14 12:29:27,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:27,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:29:27,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:27,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:29:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:29:27,670 INFO L87 Difference]: Start difference. First operand 9893 states and 13699 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 12:29:29,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:33,094 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 12:29:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:35,677 INFO L93 Difference]: Finished difference Result 19848 states and 27331 transitions. [2022-12-14 12:29:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:29:35,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 267 [2022-12-14 12:29:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:35,712 INFO L225 Difference]: With dead ends: 19848 [2022-12-14 12:29:35,712 INFO L226 Difference]: Without dead ends: 9966 [2022-12-14 12:29:35,732 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 12:29:35,733 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 1249 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:35,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 3144 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 511 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 12:29:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9966 states. [2022-12-14 12:29:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9966 to 9961. [2022-12-14 12:29:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9961 states, 6055 states have (on average 1.2398018166804294) internal successors, (7507), 6235 states have internal predecessors, (7507), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-12-14 12:29:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9961 states to 9961 states and 13585 transitions. [2022-12-14 12:29:36,263 INFO L78 Accepts]: Start accepts. Automaton has 9961 states and 13585 transitions. Word has length 267 [2022-12-14 12:29:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:36,264 INFO L495 AbstractCegarLoop]: Abstraction has 9961 states and 13585 transitions. [2022-12-14 12:29:36,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 12:29:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 9961 states and 13585 transitions. [2022-12-14 12:29:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-12-14 12:29:36,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:36,272 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 8, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:36,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:29:36,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:36,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:36,273 INFO L85 PathProgramCache]: Analyzing trace with hash 653406075, now seen corresponding path program 1 times [2022-12-14 12:29:36,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:36,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008204661] [2022-12-14 12:29:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-12-14 12:29:37,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:37,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008204661] [2022-12-14 12:29:37,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008204661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:37,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:37,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:29:37,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053450060] [2022-12-14 12:29:37,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:37,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:29:37,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:37,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:29:37,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:29:37,184 INFO L87 Difference]: Start difference. First operand 9961 states and 13585 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 12:29:39,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:44,066 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 12:29:46,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:46,415 INFO L93 Difference]: Finished difference Result 19932 states and 27239 transitions. [2022-12-14 12:29:46,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:29:46,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 271 [2022-12-14 12:29:46,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:46,446 INFO L225 Difference]: With dead ends: 19932 [2022-12-14 12:29:46,446 INFO L226 Difference]: Without dead ends: 10000 [2022-12-14 12:29:46,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:29:46,469 INFO L413 NwaCegarLoop]: 1433 mSDtfsCounter, 7 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:46,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4286 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 12:29:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2022-12-14 12:29:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 9977. [2022-12-14 12:29:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9977 states, 6071 states have (on average 1.2391698237522648) internal successors, (7523), 6251 states have internal predecessors, (7523), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-12-14 12:29:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 13601 transitions. [2022-12-14 12:29:46,859 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 13601 transitions. Word has length 271 [2022-12-14 12:29:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:46,860 INFO L495 AbstractCegarLoop]: Abstraction has 9977 states and 13601 transitions. [2022-12-14 12:29:46,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 12:29:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 13601 transitions. [2022-12-14 12:29:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 12:29:46,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:46,864 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:46,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:29:46,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash -715943865, now seen corresponding path program 1 times [2022-12-14 12:29:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:46,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834123831] [2022-12-14 12:29:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:29:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-12-14 12:29:47,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:29:47,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834123831] [2022-12-14 12:29:47,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834123831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:29:47,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:29:47,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:29:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214110575] [2022-12-14 12:29:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:29:47,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:29:47,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:29:47,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:29:47,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:29:47,779 INFO L87 Difference]: Start difference. First operand 9977 states and 13601 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 12:29:49,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:54,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:29:57,211 WARN L539 Checker$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 12:29:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:29:59,239 INFO L93 Difference]: Finished difference Result 19964 states and 27271 transitions. [2022-12-14 12:29:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:29:59,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 306 [2022-12-14 12:29:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:29:59,264 INFO L225 Difference]: With dead ends: 19964 [2022-12-14 12:29:59,264 INFO L226 Difference]: Without dead ends: 10016 [2022-12-14 12:29:59,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:29:59,285 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 7 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:29:59,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4300 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 747 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 12:29:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2022-12-14 12:29:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 9993. [2022-12-14 12:29:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9993 states, 6087 states have (on average 1.2385411532774766) internal successors, (7539), 6267 states have internal predecessors, (7539), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-12-14 12:29:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9993 states to 9993 states and 13617 transitions. [2022-12-14 12:29:59,702 INFO L78 Accepts]: Start accepts. Automaton has 9993 states and 13617 transitions. Word has length 306 [2022-12-14 12:29:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:29:59,702 INFO L495 AbstractCegarLoop]: Abstraction has 9993 states and 13617 transitions. [2022-12-14 12:29:59,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 12:29:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 9993 states and 13617 transitions. [2022-12-14 12:29:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-12-14 12:29:59,705 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:29:59,706 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:59,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:29:59,706 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:29:59,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:29:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash -773333540, now seen corresponding path program 1 times [2022-12-14 12:29:59,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:29:59,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82698028] [2022-12-14 12:29:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:29:59,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:29:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-14 12:30:00,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:00,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82698028] [2022-12-14 12:30:00,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82698028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:30:00,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:30:00,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:30:00,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72358106] [2022-12-14 12:30:00,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:30:00,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:30:00,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:30:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:30:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:30:00,380 INFO L87 Difference]: Start difference. First operand 9993 states and 13617 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:30:02,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:06,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:08,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:08,326 INFO L93 Difference]: Finished difference Result 20537 states and 28129 transitions. [2022-12-14 12:30:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:30:08,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 347 [2022-12-14 12:30:08,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:08,352 INFO L225 Difference]: With dead ends: 20537 [2022-12-14 12:30:08,353 INFO L226 Difference]: Without dead ends: 10573 [2022-12-14 12:30:08,371 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 12:30:08,371 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 69 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:08,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2956 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 12:30:08,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10573 states. [2022-12-14 12:30:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10573 to 10057. [2022-12-14 12:30:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10057 states, 6135 states have (on average 1.239282803585982) internal successors, (7603), 6315 states have internal predecessors, (7603), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 882 states have return successors, (3072), 2994 states have call predecessors, (3072), 3038 states have call successors, (3072) [2022-12-14 12:30:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10057 states to 10057 states and 13713 transitions. [2022-12-14 12:30:08,771 INFO L78 Accepts]: Start accepts. Automaton has 10057 states and 13713 transitions. Word has length 347 [2022-12-14 12:30:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:08,772 INFO L495 AbstractCegarLoop]: Abstraction has 10057 states and 13713 transitions. [2022-12-14 12:30:08,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:30:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 10057 states and 13713 transitions. [2022-12-14 12:30:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-12-14 12:30:08,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:08,775 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:08,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:30:08,775 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1015585164, now seen corresponding path program 1 times [2022-12-14 12:30:08,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:08,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106108806] [2022-12-14 12:30:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:08,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-14 12:30:09,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:09,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106108806] [2022-12-14 12:30:09,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106108806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:30:09,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:30:09,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:30:09,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310751993] [2022-12-14 12:30:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:30:09,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:30:09,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:30:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:30:09,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:30:09,622 INFO L87 Difference]: Start difference. First operand 10057 states and 13713 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:30:11,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:15,506 WARN L539 Checker$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 12:30:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:17,768 INFO L93 Difference]: Finished difference Result 20729 states and 28425 transitions. [2022-12-14 12:30:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:30:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 348 [2022-12-14 12:30:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:17,793 INFO L225 Difference]: With dead ends: 20729 [2022-12-14 12:30:17,793 INFO L226 Difference]: Without dead ends: 10701 [2022-12-14 12:30:17,810 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 12:30:17,810 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 45 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:17,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2950 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 12:30:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-12-14 12:30:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 10073. [2022-12-14 12:30:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10073 states, 6151 states have (on average 1.238660380425947) internal successors, (7619), 6331 states have internal predecessors, (7619), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 882 states have return successors, (3072), 2994 states have call predecessors, (3072), 3038 states have call successors, (3072) [2022-12-14 12:30:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10073 states to 10073 states and 13729 transitions. [2022-12-14 12:30:18,195 INFO L78 Accepts]: Start accepts. Automaton has 10073 states and 13729 transitions. Word has length 348 [2022-12-14 12:30:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:18,195 INFO L495 AbstractCegarLoop]: Abstraction has 10073 states and 13729 transitions. [2022-12-14 12:30:18,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:30:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10073 states and 13729 transitions. [2022-12-14 12:30:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-12-14 12:30:18,198 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:18,199 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:18,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:30:18,199 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:18,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:18,199 INFO L85 PathProgramCache]: Analyzing trace with hash -762206874, now seen corresponding path program 1 times [2022-12-14 12:30:18,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:18,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033011523] [2022-12-14 12:30:18,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:18,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-12-14 12:30:19,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:19,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033011523] [2022-12-14 12:30:19,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033011523] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:30:19,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794018161] [2022-12-14 12:30:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:19,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:30:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:30:19,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:30:19,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:30:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:21,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 6420 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:30:21,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:30:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-12-14 12:30:21,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:30:21,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794018161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:30:21,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:30:21,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-12-14 12:30:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940034896] [2022-12-14 12:30:21,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:30:21,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:30:21,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:30:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:30:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:30:21,440 INFO L87 Difference]: Start difference. First operand 10073 states and 13729 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 12:30:23,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:28,970 WARN L539 Checker$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 12:30:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:32,682 INFO L93 Difference]: Finished difference Result 20196 states and 27591 transitions. [2022-12-14 12:30:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:30:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 351 [2022-12-14 12:30:32,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:32,706 INFO L225 Difference]: With dead ends: 20196 [2022-12-14 12:30:32,706 INFO L226 Difference]: Without dead ends: 10152 [2022-12-14 12:30:32,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:30:32,723 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 6 mSDsluCounter, 4298 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:32,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5734 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 12:30:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2022-12-14 12:30:33,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 10105. [2022-12-14 12:30:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10105 states, 6175 states have (on average 1.2377327935222673) internal successors, (7643), 6355 states have internal predecessors, (7643), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 890 states have return successors, (3104), 3002 states have call predecessors, (3104), 3038 states have call successors, (3104) [2022-12-14 12:30:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10105 states to 10105 states and 13785 transitions. [2022-12-14 12:30:33,113 INFO L78 Accepts]: Start accepts. Automaton has 10105 states and 13785 transitions. Word has length 351 [2022-12-14 12:30:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:33,113 INFO L495 AbstractCegarLoop]: Abstraction has 10105 states and 13785 transitions. [2022-12-14 12:30:33,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 12:30:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10105 states and 13785 transitions. [2022-12-14 12:30:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-14 12:30:33,116 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:33,117 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:33,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:30:33,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 12:30:33,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:33,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1266341527, now seen corresponding path program 1 times [2022-12-14 12:30:33,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:33,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257841886] [2022-12-14 12:30:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:33,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-14 12:30:34,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:34,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257841886] [2022-12-14 12:30:34,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257841886] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:30:34,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689772439] [2022-12-14 12:30:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:34,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:30:34,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:30:34,434 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:30:34,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:30:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:36,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 6543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:30:36,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:30:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-12-14 12:30:36,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:30:36,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689772439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:30:36,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:30:36,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-12-14 12:30:36,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671463322] [2022-12-14 12:30:36,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:30:36,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:30:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:30:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:30:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:30:36,564 INFO L87 Difference]: Start difference. First operand 10105 states and 13785 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:30:38,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:43,773 WARN L539 Checker$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 12:30:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:47,327 INFO L93 Difference]: Finished difference Result 20244 states and 27663 transitions. [2022-12-14 12:30:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:30:47,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) Word has length 359 [2022-12-14 12:30:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:47,351 INFO L225 Difference]: With dead ends: 20244 [2022-12-14 12:30:47,351 INFO L226 Difference]: Without dead ends: 10168 [2022-12-14 12:30:47,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:30:47,370 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 6 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:47,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5757 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 12:30:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10168 states. [2022-12-14 12:30:47,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10168 to 10121. [2022-12-14 12:30:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10121 states, 6191 states have (on average 1.237118397674043) internal successors, (7659), 6363 states have internal predecessors, (7659), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 890 states have return successors, (3104), 3010 states have call predecessors, (3104), 3038 states have call successors, (3104) [2022-12-14 12:30:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10121 states to 10121 states and 13801 transitions. [2022-12-14 12:30:47,758 INFO L78 Accepts]: Start accepts. Automaton has 10121 states and 13801 transitions. Word has length 359 [2022-12-14 12:30:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:47,759 INFO L495 AbstractCegarLoop]: Abstraction has 10121 states and 13801 transitions. [2022-12-14 12:30:47,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:30:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10121 states and 13801 transitions. [2022-12-14 12:30:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-12-14 12:30:47,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:47,762 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 12:30:47,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:30:47,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:30:47,964 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:47,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:47,965 INFO L85 PathProgramCache]: Analyzing trace with hash -601107000, now seen corresponding path program 2 times [2022-12-14 12:30:47,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:47,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197965379] [2022-12-14 12:30:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:47,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:30:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-12-14 12:30:49,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:30:49,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197965379] [2022-12-14 12:30:49,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197965379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:30:49,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:30:49,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:30:49,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29562540] [2022-12-14 12:30:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:30:49,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:30:49,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:30:49,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:30:49,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:30:49,281 INFO L87 Difference]: Start difference. First operand 10121 states and 13801 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 12:30:51,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:30:55,891 WARN L539 Checker$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 12:30:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:30:59,197 INFO L93 Difference]: Finished difference Result 20294 states and 27730 transitions. [2022-12-14 12:30:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:30:59,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 367 [2022-12-14 12:30:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:30:59,219 INFO L225 Difference]: With dead ends: 20294 [2022-12-14 12:30:59,219 INFO L226 Difference]: Without dead ends: 10202 [2022-12-14 12:30:59,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:30:59,238 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 7 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:30:59,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4302 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 745 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 12:30:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10202 states. [2022-12-14 12:30:59,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10202 to 10175. [2022-12-14 12:30:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10175 states, 6234 states have (on average 1.2367661212704524) internal successors, (7710), 6409 states have internal predecessors, (7710), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3018 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-12-14 12:30:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10175 states to 10175 states and 13872 transitions. [2022-12-14 12:30:59,630 INFO L78 Accepts]: Start accepts. Automaton has 10175 states and 13872 transitions. Word has length 367 [2022-12-14 12:30:59,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:30:59,631 INFO L495 AbstractCegarLoop]: Abstraction has 10175 states and 13872 transitions. [2022-12-14 12:30:59,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 12:30:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 10175 states and 13872 transitions. [2022-12-14 12:30:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 12:30:59,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:30:59,634 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:30:59,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 12:30:59,634 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:30:59,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:30:59,635 INFO L85 PathProgramCache]: Analyzing trace with hash 812927385, now seen corresponding path program 1 times [2022-12-14 12:30:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:30:59,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847357942] [2022-12-14 12:30:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:30:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:30:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-12-14 12:31:00,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847357942] [2022-12-14 12:31:00,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847357942] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918905345] [2022-12-14 12:31:00,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:00,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:00,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:00,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:00,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:31:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:03,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 6640 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:31:03,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-12-14 12:31:03,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:31:03,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918905345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:03,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:31:03,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-12-14 12:31:03,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97317093] [2022-12-14 12:31:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:31:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:31:03,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:31:03,213 INFO L87 Difference]: Start difference. First operand 10175 states and 13872 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:31:05,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:31:10,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:31:14,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:14,749 INFO L93 Difference]: Finished difference Result 20384 states and 27841 transitions. [2022-12-14 12:31:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:31:14,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 369 [2022-12-14 12:31:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:14,769 INFO L225 Difference]: With dead ends: 20384 [2022-12-14 12:31:14,769 INFO L226 Difference]: Without dead ends: 10238 [2022-12-14 12:31:14,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:31:14,784 INFO L413 NwaCegarLoop]: 1440 mSDtfsCounter, 6 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:14,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5748 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 12:31:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10238 states. [2022-12-14 12:31:15,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10238 to 10191. [2022-12-14 12:31:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10191 states, 6250 states have (on average 1.23616) internal successors, (7726), 6417 states have internal predecessors, (7726), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3026 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-12-14 12:31:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10191 states to 10191 states and 13888 transitions. [2022-12-14 12:31:15,159 INFO L78 Accepts]: Start accepts. Automaton has 10191 states and 13888 transitions. Word has length 369 [2022-12-14 12:31:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:15,159 INFO L495 AbstractCegarLoop]: Abstraction has 10191 states and 13888 transitions. [2022-12-14 12:31:15,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:31:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 10191 states and 13888 transitions. [2022-12-14 12:31:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-12-14 12:31:15,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:15,162 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:15,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:31:15,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 12:31:15,364 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:31:15,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1403659594, now seen corresponding path program 2 times [2022-12-14 12:31:15,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:15,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228992944] [2022-12-14 12:31:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:15,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2022-12-14 12:31:16,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:16,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228992944] [2022-12-14 12:31:16,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228992944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:16,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:31:16,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:31:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710987458] [2022-12-14 12:31:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:16,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:31:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:31:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:31:16,597 INFO L87 Difference]: Start difference. First operand 10191 states and 13888 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 12:31:18,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:31:23,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:31:28,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:28,027 INFO L93 Difference]: Finished difference Result 20416 states and 27873 transitions. [2022-12-14 12:31:28,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:31:28,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 377 [2022-12-14 12:31:28,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:28,048 INFO L225 Difference]: With dead ends: 20416 [2022-12-14 12:31:28,048 INFO L226 Difference]: Without dead ends: 10254 [2022-12-14 12:31:28,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:31:28,063 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 6 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:28,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5757 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 12:31:28,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2022-12-14 12:31:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 10207. [2022-12-14 12:31:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10207 states, 6266 states have (on average 1.2355569741461858) internal successors, (7742), 6425 states have internal predecessors, (7742), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3034 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-12-14 12:31:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 13904 transitions. [2022-12-14 12:31:28,444 INFO L78 Accepts]: Start accepts. Automaton has 10207 states and 13904 transitions. Word has length 377 [2022-12-14 12:31:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:28,445 INFO L495 AbstractCegarLoop]: Abstraction has 10207 states and 13904 transitions. [2022-12-14 12:31:28,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 12:31:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10207 states and 13904 transitions. [2022-12-14 12:31:28,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-12-14 12:31:28,448 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:28,448 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-14 12:31:28,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 12:31:28,448 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:31:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -477049093, now seen corresponding path program 1 times [2022-12-14 12:31:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:28,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241622638] [2022-12-14 12:31:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-12-14 12:31:29,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:29,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241622638] [2022-12-14 12:31:29,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241622638] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:29,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375278032] [2022-12-14 12:31:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:29,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:29,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:29,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:29,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:31:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:32,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 6886 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 12:31:32,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-12-14 12:32:40,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:32:40,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375278032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:32:40,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:32:40,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-12-14 12:32:40,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441306273] [2022-12-14 12:32:40,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:32:40,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:32:40,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:40,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:32:40,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:32:40,106 INFO L87 Difference]: Start difference. First operand 10207 states and 13904 transitions. Second operand has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2022-12-14 12:32:42,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:32:50,718 WARN L539 Checker$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 12:32:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:57,850 INFO L93 Difference]: Finished difference Result 10217 states and 13913 transitions. [2022-12-14 12:32:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:32:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) Word has length 385 [2022-12-14 12:32:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:57,872 INFO L225 Difference]: With dead ends: 10217 [2022-12-14 12:32:57,872 INFO L226 Difference]: Without dead ends: 10215 [2022-12-14 12:32:57,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:32:57,875 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 1045 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 7478 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:57,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 7478 Invalid, 1829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1827 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-12-14 12:32:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10215 states. [2022-12-14 12:32:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10215 to 10207. [2022-12-14 12:32:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10207 states, 6266 states have (on average 1.2349186083625918) internal successors, (7738), 6425 states have internal predecessors, (7738), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3034 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-12-14 12:32:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 13900 transitions. [2022-12-14 12:32:58,241 INFO L78 Accepts]: Start accepts. Automaton has 10207 states and 13900 transitions. Word has length 385 [2022-12-14 12:32:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:58,241 INFO L495 AbstractCegarLoop]: Abstraction has 10207 states and 13900 transitions. [2022-12-14 12:32:58,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2022-12-14 12:32:58,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10207 states and 13900 transitions. [2022-12-14 12:32:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-12-14 12:32:58,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:58,246 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 12, 8, 8, 8, 8, 8, 8, 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, 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] [2022-12-14 12:32:58,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 12:32:58,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 12:32:58,448 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:32:58,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:58,449 INFO L85 PathProgramCache]: Analyzing trace with hash 743762295, now seen corresponding path program 1 times [2022-12-14 12:32:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910969845] [2022-12-14 12:32:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 907 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-12-14 12:32:59,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910969845] [2022-12-14 12:32:59,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910969845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:32:59,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:32:59,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:32:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873816819] [2022-12-14 12:32:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:32:59,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:32:59,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:32:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:32:59,726 INFO L87 Difference]: Start difference. First operand 10207 states and 13900 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-12-14 12:33:01,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:33:06,322 WARN L539 Checker$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 12:33:13,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:33:13,734 INFO L93 Difference]: Finished difference Result 22713 states and 30902 transitions. [2022-12-14 12:33:13,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:33:13,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 415 [2022-12-14 12:33:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:33:13,778 INFO L225 Difference]: With dead ends: 22713 [2022-12-14 12:33:13,779 INFO L226 Difference]: Without dead ends: 12535 [2022-12-14 12:33:13,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:33:13,796 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 1279 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:33:13,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 4130 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1416 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 12:33:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12535 states. [2022-12-14 12:33:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12535 to 12523. [2022-12-14 12:33:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12523 states, 7715 states have (on average 1.2326636422553467) internal successors, (9510), 7909 states have internal predecessors, (9510), 3685 states have call successors, (3685), 1112 states have call predecessors, (3685), 1121 states have return successors, (3760), 3667 states have call predecessors, (3760), 3685 states have call successors, (3760) [2022-12-14 12:33:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 16955 transitions. [2022-12-14 12:33:14,270 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 16955 transitions. Word has length 415 [2022-12-14 12:33:14,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:33:14,271 INFO L495 AbstractCegarLoop]: Abstraction has 12523 states and 16955 transitions. [2022-12-14 12:33:14,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-12-14 12:33:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 16955 transitions. [2022-12-14 12:33:14,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-12-14 12:33:14,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:33:14,276 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 12:33:14,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 12:33:14,276 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:33:14,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:33:14,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1829949956, now seen corresponding path program 1 times [2022-12-14 12:33:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:33:14,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427656761] [2022-12-14 12:33:14,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:33:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:33:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:33:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2022-12-14 12:33:15,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:33:15,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427656761] [2022-12-14 12:33:15,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427656761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:33:15,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:33:15,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:33:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396271052] [2022-12-14 12:33:15,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:33:15,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:33:15,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:33:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:33:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:33:15,462 INFO L87 Difference]: Start difference. First operand 12523 states and 16955 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-12-14 12:33:17,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:33:20,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:33:24,887 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 12:33:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:33:25,758 INFO L93 Difference]: Finished difference Result 25837 states and 35176 transitions. [2022-12-14 12:33:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:33:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 422 [2022-12-14 12:33:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:33:25,799 INFO L225 Difference]: With dead ends: 25837 [2022-12-14 12:33:25,799 INFO L226 Difference]: Without dead ends: 16091 [2022-12-14 12:33:25,818 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 12:33:25,818 INFO L413 NwaCegarLoop]: 1785 mSDtfsCounter, 1472 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:33:25,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 3081 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 12:33:25,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16091 states. [2022-12-14 12:33:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16091 to 16078. [2022-12-14 12:33:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16078 states, 9923 states have (on average 1.2357150055426787) internal successors, (12262), 10181 states have internal predecessors, (12262), 4737 states have call successors, (4737), 1410 states have call predecessors, (4737), 1416 states have return successors, (4840), 4697 states have call predecessors, (4840), 4737 states have call successors, (4840) [2022-12-14 12:33:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16078 states to 16078 states and 21839 transitions. [2022-12-14 12:33:26,387 INFO L78 Accepts]: Start accepts. Automaton has 16078 states and 21839 transitions. Word has length 422 [2022-12-14 12:33:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:33:26,387 INFO L495 AbstractCegarLoop]: Abstraction has 16078 states and 21839 transitions. [2022-12-14 12:33:26,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-12-14 12:33:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 16078 states and 21839 transitions. [2022-12-14 12:33:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-12-14 12:33:26,393 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:33:26,393 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 13, 12, 8, 8, 8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 12:33:26,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 12:33:26,393 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:33:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:33:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash -299228203, now seen corresponding path program 1 times [2022-12-14 12:33:26,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:33:26,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666071132] [2022-12-14 12:33:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:33:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:33:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:33:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-12-14 12:33:28,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:33:28,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666071132] [2022-12-14 12:33:28,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666071132] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:33:28,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582742091] [2022-12-14 12:33:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:33:28,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:33:28,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:33:28,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:33:28,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93e7ea-d52d-4482-9a49-c96d57da766f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:33:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:33:31,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 8395 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 12:33:31,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:34:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-12-14 12:34:52,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:34:56,762 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 8191 disjunctions. This might take some time... [2022-12-14 12:35:00,983 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 8191 disjunctions. [2022-12-14 12:35:01,028 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 16383 disjunctions. This might take some time... [2022-12-14 12:35:18,491 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 16383 disjunctions. [2022-12-14 12:35:18,584 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 32767 disjunctions. This might take some time... [2022-12-14 12:36:34,180 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 32767 disjunctions. [2022-12-14 12:36:34,407 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 65535 disjunctions. This might take some time...