./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.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_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/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_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/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_a706a0ca-677f-435f-ac87-1ca51e267906/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 d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- 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 15:49:14,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:49:14,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:49:14,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:49:14,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:49:14,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:49:14,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:49:14,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:49:14,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:49:14,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:49:14,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:49:14,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:49:14,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:49:14,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:49:14,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:49:14,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:49:14,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:49:14,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:49:14,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:49:14,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:49:14,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:49:14,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:49:14,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:49:14,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:49:14,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:49:14,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:49:14,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:49:14,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:49:14,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:49:14,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:49:14,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:49:14,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:49:14,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:49:14,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:49:14,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:49:14,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:49:14,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:49:14,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:49:14,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:49:14,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:49:14,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:49:14,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:49:14,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:49:14,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:49:14,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:49:14,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:49:14,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:49:14,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:49:14,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:49:14,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:49:14,417 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:49:14,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:49:14,418 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:49:14,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:49:14,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:49:14,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:49:14,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:49:14,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:49:14,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:49:14,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:49:14,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:49:14,421 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_a706a0ca-677f-435f-ac87-1ca51e267906/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2022-12-14 15:49:14,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:49:14,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:49:14,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:49:14,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:49:14,619 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:49:14,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2022-12-14 15:49:17,265 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:49:17,736 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:49:17,736 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2022-12-14 15:49:17,770 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/data/66eacdc29/1f7bbdfeb40b420ab27b12d250ace0b9/FLAGa0bc7d21a [2022-12-14 15:49:17,783 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/data/66eacdc29/1f7bbdfeb40b420ab27b12d250ace0b9 [2022-12-14 15:49:17,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:49:17,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:49:17,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:49:17,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:49:17,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:49:17,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:49:17" (1/1) ... [2022-12-14 15:49:17,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a285dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:17, skipping insertion in model container [2022-12-14 15:49:17,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:49:17" (1/1) ... [2022-12-14 15:49:17,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:49:17,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:49:18,436 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:49:18,444 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:49:18,452 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:49:18,461 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:49:18,468 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:49:18,601 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:49:18,605 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:49:18,605 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:49:18,611 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:49:18,618 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 15:49:18,623 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 15:49:18,627 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 15:49:18,645 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 15:49:18,650 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:18,652 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 15:49:18,670 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:49:18,700 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:49:18,701 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:49:18,707 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:18,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,732 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 15:49:18,735 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 15:49:18,779 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 15:49:18,809 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:49:18,831 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 15:49:18,952 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,953 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:18,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,953 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:18,954 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,957 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 15:49:18,958 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 15:49:18,963 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 15:49:18,963 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 15:49:18,964 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 15:49:18,964 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 15:49:18,966 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:18,966 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:18,966 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 15:49:18,967 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 15:49:18,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,972 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,978 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,979 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:18,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,982 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,983 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:18,984 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 15:49:18,984 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:49:18,986 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:18,987 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:18,987 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:18,987 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:18,991 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,992 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,992 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,992 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,993 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,993 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,994 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,994 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,994 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,994 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,995 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,995 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,995 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,997 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,997 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,997 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,997 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,998 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,998 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,998 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:18,998 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:18,999 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:18,999 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,001 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,001 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:19,002 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,002 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,003 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:19,004 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:19,004 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,005 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,005 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,005 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,006 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,007 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,007 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,007 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,008 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,008 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,009 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,009 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,009 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,010 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,010 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 15:49:19,011 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:49:19,011 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,014 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,014 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,017 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,017 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,019 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,019 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,020 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,021 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:49:19,022 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,022 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,023 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,024 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,026 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,029 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,034 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:19,038 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,039 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:19,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,044 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:19,045 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,047 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,048 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,049 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,049 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,050 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,051 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,051 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,052 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,052 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,054 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,055 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,055 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,056 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,056 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,056 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,057 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:19,057 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,058 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,065 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,073 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:19,073 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:19,074 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:19,075 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:49:19,075 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 15:49:19,076 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,081 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,087 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,087 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,088 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,088 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,088 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 15:49:19,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,089 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:49:19,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,091 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,092 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,092 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,093 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,093 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,093 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,094 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,094 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,095 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,095 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,096 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,096 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,097 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,097 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,097 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,098 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,098 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,099 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,101 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:49:19,103 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,104 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,105 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,106 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,107 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,108 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,119 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:19,120 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:19,120 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:19,125 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 15:49:19,130 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 15:49:19,135 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 15:49:19,139 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 15:49:19,168 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,174 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,175 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,175 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 15:49:19,177 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 15:49:19,178 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 15:49:19,178 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 15:49:19,178 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,179 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,179 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:19,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,180 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,180 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:19,181 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,181 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:19,181 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,181 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,182 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,182 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:19,182 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,183 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:19,184 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:19,185 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:19,200 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 15:49:19,200 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:49:19,206 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 15:49:19,206 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 15:49:19,207 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:19,207 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:19,207 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 15:49:19,208 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 15:49:19,208 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:49:19,213 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:49:19,213 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 15:49:19,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,214 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 15:49:19,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:19,476 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:49:19,479 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:49:19,482 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:19,482 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:19,490 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:49:19,492 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:49:19,497 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:19,497 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:19,499 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:49:19,500 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:49:19,500 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:19,500 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:19,501 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:19,502 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:19,502 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:19,503 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:19,503 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:49:19,503 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:19,504 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:19,504 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 15:49:19,505 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 15:49:19,546 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:49:19,546 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:49:19,554 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:49:19,968 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2022-12-14 15:49:19,971 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2022-12-14 15:49:19,972 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2022-12-14 15:49:19,972 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2022-12-14 15:49:19,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:49:20,026 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:49:20,108 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:49:20,109 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:49:20,109 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:49:20,109 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:49:20,109 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:49:20,112 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:49:20,113 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 15:49:20,113 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 15:49:20,114 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 15:49:20,115 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 15:49:20,116 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 15:49:20,117 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 15:49:20,119 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 15:49:20,120 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:20,120 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 15:49:20,122 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:49:20,123 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:49:20,123 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:49:20,124 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:20,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,125 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 15:49:20,126 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 15:49:20,126 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 15:49:20,128 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:49:20,129 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 15:49:20,133 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,133 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,133 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,134 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,134 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,134 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 15:49:20,135 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 15:49:20,137 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 15:49:20,137 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 15:49:20,139 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 15:49:20,139 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 15:49:20,140 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:20,141 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:20,141 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 15:49:20,141 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 15:49:20,142 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,144 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,144 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,144 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,148 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,148 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,150 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,151 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,151 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,152 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 15:49:20,152 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:49:20,154 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,154 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,154 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,154 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,155 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,155 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,155 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,155 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,156 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,157 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,158 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,158 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,159 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,160 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,160 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,161 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,161 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,162 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,162 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,163 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,164 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,164 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,164 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,165 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:20,165 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,165 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,165 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,165 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,166 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,166 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,166 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,166 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,167 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,167 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,167 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,167 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,167 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,168 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 15:49:20,168 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:49:20,168 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,170 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,170 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,171 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,172 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,172 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,173 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,173 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,173 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,174 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:49:20,175 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,175 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,175 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,177 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,178 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,181 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:20,183 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,184 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,186 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:20,187 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,188 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,188 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,189 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,190 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,190 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,191 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,193 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,193 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,193 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,194 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,194 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,194 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,194 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,195 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,195 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,199 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,202 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,202 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,203 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,204 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:20,204 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:20,205 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:20,205 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:49:20,205 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 15:49:20,206 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,213 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,213 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,214 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,214 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,214 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 15:49:20,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,215 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 15:49:20,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,216 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,216 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,217 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,217 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,217 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,217 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,218 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,218 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,219 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,219 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,219 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,219 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,220 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,220 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,220 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,220 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,221 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,221 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,223 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:49:20,224 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,225 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,225 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,226 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,226 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,227 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,229 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:20,229 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:20,230 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:20,230 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 15:49:20,231 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 15:49:20,231 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 15:49:20,231 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 15:49:20,235 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,236 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,236 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,237 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 15:49:20,238 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 15:49:20,239 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 15:49:20,239 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 15:49:20,239 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,239 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,240 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 15:49:20,240 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,240 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,240 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,241 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 15:49:20,241 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,241 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 15:49:20,241 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,241 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,242 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,242 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 15:49:20,242 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,242 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:20,243 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:20,244 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:20,245 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 15:49:20,246 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 15:49:20,247 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 15:49:20,247 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 15:49:20,247 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 15:49:20,247 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 15:49:20,247 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 15:49:20,248 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 15:49:20,248 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:49:20,249 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 15:49:20,249 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 15:49:20,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,249 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 15:49:20,250 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:20,270 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:49:20,272 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:49:20,274 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:20,274 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:20,281 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:49:20,282 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:49:20,290 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:20,290 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:20,296 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:49:20,297 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:49:20,297 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:20,297 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:20,298 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:20,298 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:20,298 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:20,299 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:20,299 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:49:20,299 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:20,300 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:20,300 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 15:49:20,300 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 15:49:20,302 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:49:20,303 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:49:20,303 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:49:20,321 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2022-12-14 15:49:20,322 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2022-12-14 15:49:20,322 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2022-12-14 15:49:20,322 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_a706a0ca-677f-435f-ac87-1ca51e267906/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2022-12-14 15:49:20,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:49:20,541 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:49:20,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20 WrapperNode [2022-12-14 15:49:20,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:49:20,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:49:20,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:49:20,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:49:20,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,717 INFO L138 Inliner]: procedures = 470, calls = 2162, calls flagged for inlining = 234, calls inlined = 217, statements flattened = 5503 [2022-12-14 15:49:20,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:49:20,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:49:20,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:49:20,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:49:20,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:49:20,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:49:20,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:49:20,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:49:20,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (1/1) ... [2022-12-14 15:49:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:49:20,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:49:20,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:49:20,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:49:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:49:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:49:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure reset_tx [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_tx [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_76 [2022-12-14 15:49:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_76 [2022-12-14 15:49:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 15:49:21,010 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 15:49:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_69 [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_69 [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:49:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 15:49:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:49:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:49:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure check_duplex [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure check_duplex [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_resume [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_resume [2022-12-14 15:49:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:49:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-12-14 15:49:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-12-14 15:49:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 15:49:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 15:49:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure __set_mac_addr [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_mac_addr [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sundance_exit_14_2 [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-12-14 15:49:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-12-14 15:49:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_poll_controller [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_poll_controller [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:49:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 15:49:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_75 [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_75 [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 15:49:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 15:49:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-12-14 15:49:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-12-14 15:49:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_reset [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_reset [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 15:49:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 15:49:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure sundance_remove1 [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sundance_remove1 [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_70 [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_70 [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 15:49:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 15:49:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 15:49:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 15:49:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-12-14 15:49:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-12-14 15:49:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:49:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 15:49:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 15:49:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 15:49:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 15:49:21,671 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:49:21,674 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:49:22,144 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:50:31,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 15:50:31,591 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:50:33,302 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:50:33,303 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 15:50:33,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:50:33 BoogieIcfgContainer [2022-12-14 15:50:33,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:50:33,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:50:33,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:50:33,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:50:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:49:17" (1/3) ... [2022-12-14 15:50:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caec74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:50:33, skipping insertion in model container [2022-12-14 15:50:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:20" (2/3) ... [2022-12-14 15:50:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caec74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:50:33, skipping insertion in model container [2022-12-14 15:50:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:50:33" (3/3) ... [2022-12-14 15:50:33,312 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2022-12-14 15:50:33,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:50:33,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 15:50:33,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:50:33,386 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;@628d17a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:50:33,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 15:50:33,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 1432 states, 822 states have (on average 1.2846715328467153) internal successors, (1056), 861 states have internal predecessors, (1056), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 497 states have call predecessors, (505), 505 states have call successors, (505) [2022-12-14 15:50:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-14 15:50:33,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:33,405 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:33,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 446804397, now seen corresponding path program 1 times [2022-12-14 15:50:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:33,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521074463] [2022-12-14 15:50:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:33,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 15:50:34,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:34,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521074463] [2022-12-14 15:50:34,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521074463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:34,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:34,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:50:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477181265] [2022-12-14 15:50:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:34,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:50:34,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:50:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:50:34,318 INFO L87 Difference]: Start difference. First operand has 1432 states, 822 states have (on average 1.2846715328467153) internal successors, (1056), 861 states have internal predecessors, (1056), 511 states have call successors, (511), 101 states have call predecessors, (511), 100 states have return successors, (505), 497 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 15:50:36,410 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 15:50:40,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:50:42,993 WARN L539 Checker$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 15:50:44,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:50:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:44,926 INFO L93 Difference]: Finished difference Result 4141 states and 6092 transitions. [2022-12-14 15:50:44,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:50:44,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 151 [2022-12-14 15:50:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:44,959 INFO L225 Difference]: With dead ends: 4141 [2022-12-14 15:50:44,959 INFO L226 Difference]: Without dead ends: 2726 [2022-12-14 15:50:44,969 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 15:50:44,971 INFO L413 NwaCegarLoop]: 2209 mSDtfsCounter, 1913 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:44,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 3924 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 598 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 15:50:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2022-12-14 15:50:45,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2721. [2022-12-14 15:50:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 1567 states have (on average 1.2788768347160178) internal successors, (2004), 1637 states have internal predecessors, (2004), 955 states have call successors, (955), 197 states have call predecessors, (955), 196 states have return successors, (951), 934 states have call predecessors, (951), 951 states have call successors, (951) [2022-12-14 15:50:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3910 transitions. [2022-12-14 15:50:45,224 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3910 transitions. Word has length 151 [2022-12-14 15:50:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:45,226 INFO L495 AbstractCegarLoop]: Abstraction has 2721 states and 3910 transitions. [2022-12-14 15:50:45,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 15:50:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3910 transitions. [2022-12-14 15:50:45,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-14 15:50:45,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:45,235 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:45,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:50:45,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash 265594964, now seen corresponding path program 1 times [2022-12-14 15:50:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:45,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90527069] [2022-12-14 15:50:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:45,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 15:50:45,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:45,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90527069] [2022-12-14 15:50:45,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90527069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:45,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:45,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:50:45,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149635899] [2022-12-14 15:50:45,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:45,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:50:45,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:45,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:50:45,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:50:45,707 INFO L87 Difference]: Start difference. First operand 2721 states and 3910 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 15:50:47,770 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 15:50:50,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:50:55,580 WARN L539 Checker$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 15:50:55,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:55,619 INFO L93 Difference]: Finished difference Result 7740 states and 11078 transitions. [2022-12-14 15:50:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:50:55,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 159 [2022-12-14 15:50:55,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:55,644 INFO L225 Difference]: With dead ends: 7740 [2022-12-14 15:50:55,644 INFO L226 Difference]: Without dead ends: 5046 [2022-12-14 15:50:55,654 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 15:50:55,654 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 1700 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:55,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 3838 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 624 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 15:50:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2022-12-14 15:50:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 5016. [2022-12-14 15:50:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 2866 states have (on average 1.2648290300069784) internal successors, (3625), 3003 states have internal predecessors, (3625), 1766 states have call successors, (1766), 384 states have call predecessors, (1766), 381 states have return successors, (1768), 1720 states have call predecessors, (1768), 1762 states have call successors, (1768) [2022-12-14 15:50:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 7159 transitions. [2022-12-14 15:50:55,829 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 7159 transitions. Word has length 159 [2022-12-14 15:50:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:55,830 INFO L495 AbstractCegarLoop]: Abstraction has 5016 states and 7159 transitions. [2022-12-14 15:50:55,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 15:50:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 7159 transitions. [2022-12-14 15:50:55,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 15:50:55,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:55,833 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:55,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:50:55,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:55,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2079579998, now seen corresponding path program 1 times [2022-12-14 15:50:55,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:55,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710518191] [2022-12-14 15:50:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 15:50:56,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:56,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710518191] [2022-12-14 15:50:56,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710518191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:56,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:56,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:50:56,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145505163] [2022-12-14 15:50:56,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:56,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:50:56,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:56,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:50:56,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:50:56,482 INFO L87 Difference]: Start difference. First operand 5016 states and 7159 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 15:50:58,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:02,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:04,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:07,089 WARN L539 Checker$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 15:51:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:07,095 INFO L93 Difference]: Finished difference Result 14778 states and 21112 transitions. [2022-12-14 15:51:07,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:51:07,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 174 [2022-12-14 15:51:07,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:07,138 INFO L225 Difference]: With dead ends: 14778 [2022-12-14 15:51:07,138 INFO L226 Difference]: Without dead ends: 9789 [2022-12-14 15:51:07,153 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 15:51:07,153 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 1959 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:07,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 3956 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 586 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 15:51:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2022-12-14 15:51:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 9754. [2022-12-14 15:51:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9754 states, 5582 states have (on average 1.266033679684701) internal successors, (7067), 5867 states have internal predecessors, (7067), 3418 states have call successors, (3418), 762 states have call predecessors, (3418), 751 states have return successors, (3452), 3304 states have call predecessors, (3452), 3414 states have call successors, (3452) [2022-12-14 15:51:07,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9754 states to 9754 states and 13937 transitions. [2022-12-14 15:51:07,520 INFO L78 Accepts]: Start accepts. Automaton has 9754 states and 13937 transitions. Word has length 174 [2022-12-14 15:51:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:07,520 INFO L495 AbstractCegarLoop]: Abstraction has 9754 states and 13937 transitions. [2022-12-14 15:51:07,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 15:51:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 9754 states and 13937 transitions. [2022-12-14 15:51:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 15:51:07,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:07,523 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-12-14 15:51:07,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:51:07,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:07,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:07,524 INFO L85 PathProgramCache]: Analyzing trace with hash 620773277, now seen corresponding path program 1 times [2022-12-14 15:51:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:07,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459289195] [2022-12-14 15:51:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2022-12-14 15:51:08,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459289195] [2022-12-14 15:51:08,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459289195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:08,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:08,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:51:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485441641] [2022-12-14 15:51:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:51:08,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:51:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:51:08,508 INFO L87 Difference]: Start difference. First operand 9754 states and 13937 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 15:51:10,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:20,903 WARN L539 Checker$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 15:51:27,651 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 15:51:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:27,712 INFO L93 Difference]: Finished difference Result 20812 states and 29502 transitions. [2022-12-14 15:51:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:51:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2022-12-14 15:51:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:27,759 INFO L225 Difference]: With dead ends: 20812 [2022-12-14 15:51:27,759 INFO L226 Difference]: Without dead ends: 11085 [2022-12-14 15:51:27,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:51:27,786 INFO L413 NwaCegarLoop]: 2912 mSDtfsCounter, 5215 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 1908 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 4500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1908 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:27,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 6252 Invalid, 4500 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1908 Valid, 2589 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2022-12-14 15:51:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-12-14 15:51:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 11006. [2022-12-14 15:51:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11006 states, 6392 states have (on average 1.2634543178973716) internal successors, (8076), 6700 states have internal predecessors, (8076), 3667 states have call successors, (3667), 963 states have call predecessors, (3667), 944 states have return successors, (3682), 3520 states have call predecessors, (3682), 3663 states have call successors, (3682) [2022-12-14 15:51:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11006 states to 11006 states and 15425 transitions. [2022-12-14 15:51:28,263 INFO L78 Accepts]: Start accepts. Automaton has 11006 states and 15425 transitions. Word has length 183 [2022-12-14 15:51:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:28,264 INFO L495 AbstractCegarLoop]: Abstraction has 11006 states and 15425 transitions. [2022-12-14 15:51:28,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 15:51:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 11006 states and 15425 transitions. [2022-12-14 15:51:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-14 15:51:28,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:28,269 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 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] [2022-12-14 15:51:28,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:51:28,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1582882595, now seen corresponding path program 1 times [2022-12-14 15:51:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:28,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355567829] [2022-12-14 15:51:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2022-12-14 15:51:29,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:29,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355567829] [2022-12-14 15:51:29,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355567829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:29,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:29,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:51:29,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283539667] [2022-12-14 15:51:29,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:29,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:29,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:29,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:29,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:29,200 INFO L87 Difference]: Start difference. First operand 11006 states and 15425 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 15:51:31,258 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 15:51:36,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:43,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:43,142 INFO L93 Difference]: Finished difference Result 21474 states and 30102 transitions. [2022-12-14 15:51:43,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:51:43,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 193 [2022-12-14 15:51:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:43,231 INFO L225 Difference]: With dead ends: 21474 [2022-12-14 15:51:43,232 INFO L226 Difference]: Without dead ends: 21472 [2022-12-14 15:51:43,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:51:43,242 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 1890 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 8693 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:43,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 8693 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1404 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-12-14 15:51:43,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21472 states. [2022-12-14 15:51:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21472 to 21465. [2022-12-14 15:51:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21465 states, 12458 states have (on average 1.2648900305024884) internal successors, (15758), 13057 states have internal predecessors, (15758), 7154 states have call successors, (7154), 1888 states have call predecessors, (7154), 1850 states have return successors, (7184), 6865 states have call predecessors, (7184), 7146 states have call successors, (7184) [2022-12-14 15:51:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21465 states to 21465 states and 30096 transitions. [2022-12-14 15:51:43,990 INFO L78 Accepts]: Start accepts. Automaton has 21465 states and 30096 transitions. Word has length 193 [2022-12-14 15:51:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:43,990 INFO L495 AbstractCegarLoop]: Abstraction has 21465 states and 30096 transitions. [2022-12-14 15:51:43,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 15:51:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 21465 states and 30096 transitions. [2022-12-14 15:51:43,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-14 15:51:43,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:43,993 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 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] [2022-12-14 15:51:43,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:51:43,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash 957534771, now seen corresponding path program 1 times [2022-12-14 15:51:43,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:43,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780819942] [2022-12-14 15:51:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2022-12-14 15:51:44,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:44,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780819942] [2022-12-14 15:51:44,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780819942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:44,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:44,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:51:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042617703] [2022-12-14 15:51:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:44,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:44,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:44,807 INFO L87 Difference]: Start difference. First operand 21465 states and 30096 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 15:51:46,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:51,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:53,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:55,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:51:58,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:02,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:02,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:52:02,125 INFO L93 Difference]: Finished difference Result 32157 states and 45109 transitions. [2022-12-14 15:52:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:52:02,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2022-12-14 15:52:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:52:02,215 INFO L225 Difference]: With dead ends: 32157 [2022-12-14 15:52:02,215 INFO L226 Difference]: Without dead ends: 32155 [2022-12-14 15:52:02,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:52:02,224 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1959 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:52:02,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1970 Valid, 8315 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1180 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2022-12-14 15:52:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32155 states. [2022-12-14 15:52:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32155 to 32148. [2022-12-14 15:52:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32148 states, 18651 states have (on average 1.2652940861079836) internal successors, (23599), 19553 states have internal predecessors, (23599), 10729 states have call successors, (10729), 2822 states have call predecessors, (10729), 2765 states have return successors, (10774), 10294 states have call predecessors, (10774), 10717 states have call successors, (10774) [2022-12-14 15:52:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32148 states to 32148 states and 45102 transitions. [2022-12-14 15:52:03,280 INFO L78 Accepts]: Start accepts. Automaton has 32148 states and 45102 transitions. Word has length 198 [2022-12-14 15:52:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:03,280 INFO L495 AbstractCegarLoop]: Abstraction has 32148 states and 45102 transitions. [2022-12-14 15:52:03,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 15:52:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand 32148 states and 45102 transitions. [2022-12-14 15:52:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-14 15:52:03,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:03,283 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 5, 3, 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] [2022-12-14 15:52:03,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:52:03,283 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:52:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:03,283 INFO L85 PathProgramCache]: Analyzing trace with hash 672015372, now seen corresponding path program 1 times [2022-12-14 15:52:03,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:03,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927435045] [2022-12-14 15:52:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:03,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-12-14 15:52:03,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:03,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927435045] [2022-12-14 15:52:03,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927435045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:03,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:52:03,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:52:03,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642651374] [2022-12-14 15:52:03,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:03,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:52:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:03,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:52:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:52:03,988 INFO L87 Difference]: Start difference. First operand 32148 states and 45102 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 15:52:06,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:11,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:13,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:15,076 WARN L539 Checker$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 15:52:18,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:22,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:23,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:52:24,038 INFO L93 Difference]: Finished difference Result 32165 states and 45115 transitions. [2022-12-14 15:52:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:52:24,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 206 [2022-12-14 15:52:24,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:52:24,135 INFO L225 Difference]: With dead ends: 32165 [2022-12-14 15:52:24,135 INFO L226 Difference]: Without dead ends: 32163 [2022-12-14 15:52:24,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:52:24,150 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1958 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:52:24,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 8315 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1180 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2022-12-14 15:52:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32163 states. [2022-12-14 15:52:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32163 to 32156. [2022-12-14 15:52:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32156 states, 18657 states have (on average 1.2652087688267137) internal successors, (23605), 19559 states have internal predecessors, (23605), 10729 states have call successors, (10729), 2824 states have call predecessors, (10729), 2767 states have return successors, (10774), 10294 states have call predecessors, (10774), 10717 states have call successors, (10774) [2022-12-14 15:52:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32156 states to 32156 states and 45108 transitions. [2022-12-14 15:52:25,266 INFO L78 Accepts]: Start accepts. Automaton has 32156 states and 45108 transitions. Word has length 206 [2022-12-14 15:52:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:25,267 INFO L495 AbstractCegarLoop]: Abstraction has 32156 states and 45108 transitions. [2022-12-14 15:52:25,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 15:52:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 32156 states and 45108 transitions. [2022-12-14 15:52:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 15:52:25,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:25,270 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 3, 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] [2022-12-14 15:52:25,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:52:25,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:52:25,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:25,270 INFO L85 PathProgramCache]: Analyzing trace with hash -327486413, now seen corresponding path program 1 times [2022-12-14 15:52:25,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:25,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016714627] [2022-12-14 15:52:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2022-12-14 15:52:25,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:25,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016714627] [2022-12-14 15:52:25,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016714627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:25,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:52:25,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:52:25,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586468351] [2022-12-14 15:52:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:25,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:52:25,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:25,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:52:25,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:52:25,960 INFO L87 Difference]: Start difference. First operand 32156 states and 45108 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 15:52:28,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:33,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:35,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:36,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:40,793 WARN L539 Checker$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 15:52:44,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:52:44,377 INFO L93 Difference]: Finished difference Result 32173 states and 45121 transitions. [2022-12-14 15:52:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:52:44,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2022-12-14 15:52:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:52:44,460 INFO L225 Difference]: With dead ends: 32173 [2022-12-14 15:52:44,460 INFO L226 Difference]: Without dead ends: 32171 [2022-12-14 15:52:44,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:52:44,469 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1959 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:52:44,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 8315 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1180 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2022-12-14 15:52:44,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32171 states. [2022-12-14 15:52:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32171 to 32164. [2022-12-14 15:52:45,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32164 states, 18663 states have (on average 1.2651235064030435) internal successors, (23611), 19565 states have internal predecessors, (23611), 10729 states have call successors, (10729), 2826 states have call predecessors, (10729), 2769 states have return successors, (10774), 10294 states have call predecessors, (10774), 10717 states have call successors, (10774) [2022-12-14 15:52:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32164 states to 32164 states and 45114 transitions. [2022-12-14 15:52:45,643 INFO L78 Accepts]: Start accepts. Automaton has 32164 states and 45114 transitions. Word has length 208 [2022-12-14 15:52:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:45,644 INFO L495 AbstractCegarLoop]: Abstraction has 32164 states and 45114 transitions. [2022-12-14 15:52:45,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 15:52:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 32164 states and 45114 transitions. [2022-12-14 15:52:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-12-14 15:52:45,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:45,647 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 4, 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] [2022-12-14 15:52:45,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:52:45,647 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:52:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1096377036, now seen corresponding path program 1 times [2022-12-14 15:52:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:45,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674716752] [2022-12-14 15:52:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-12-14 15:52:46,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:46,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674716752] [2022-12-14 15:52:46,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674716752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:46,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:52:46,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:52:46,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105466464] [2022-12-14 15:52:46,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:46,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:52:46,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:52:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:52:46,343 INFO L87 Difference]: Start difference. First operand 32164 states and 45114 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:52:48,400 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 15:52:54,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:55,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:52:56,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:00,654 WARN L539 Checker$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 15:53:04,668 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 15:53:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:04,808 INFO L93 Difference]: Finished difference Result 32181 states and 45127 transitions. [2022-12-14 15:53:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:53:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 216 [2022-12-14 15:53:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:04,901 INFO L225 Difference]: With dead ends: 32181 [2022-12-14 15:53:04,901 INFO L226 Difference]: Without dead ends: 32179 [2022-12-14 15:53:04,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:53:04,913 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1958 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:04,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 8315 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1179 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-12-14 15:53:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32179 states. [2022-12-14 15:53:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32179 to 32172. [2022-12-14 15:53:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32172 states, 18669 states have (on average 1.2650382987840805) internal successors, (23617), 19571 states have internal predecessors, (23617), 10729 states have call successors, (10729), 2828 states have call predecessors, (10729), 2771 states have return successors, (10774), 10294 states have call predecessors, (10774), 10717 states have call successors, (10774) [2022-12-14 15:53:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32172 states to 32172 states and 45120 transitions. [2022-12-14 15:53:06,224 INFO L78 Accepts]: Start accepts. Automaton has 32172 states and 45120 transitions. Word has length 216 [2022-12-14 15:53:06,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:06,225 INFO L495 AbstractCegarLoop]: Abstraction has 32172 states and 45120 transitions. [2022-12-14 15:53:06,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:53:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 32172 states and 45120 transitions. [2022-12-14 15:53:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 15:53:06,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:06,229 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 5, 5, 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] [2022-12-14 15:53:06,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:53:06,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:53:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash -281384033, now seen corresponding path program 1 times [2022-12-14 15:53:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:06,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760479833] [2022-12-14 15:53:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-12-14 15:53:07,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760479833] [2022-12-14 15:53:07,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760479833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:07,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:07,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:53:07,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145629399] [2022-12-14 15:53:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:07,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:53:07,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:53:07,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:53:07,021 INFO L87 Difference]: Start difference. First operand 32172 states and 45120 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 15:53:09,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:15,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:21,938 WARN L539 Checker$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 15:53:22,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:22,109 INFO L93 Difference]: Finished difference Result 32185 states and 45129 transitions. [2022-12-14 15:53:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:53:22,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 222 [2022-12-14 15:53:22,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:22,193 INFO L225 Difference]: With dead ends: 32185 [2022-12-14 15:53:22,193 INFO L226 Difference]: Without dead ends: 32183 [2022-12-14 15:53:22,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:53:22,204 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 1884 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 8696 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:22,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 8696 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1404 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 15:53:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32183 states. [2022-12-14 15:53:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32183 to 32176. [2022-12-14 15:53:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32176 states, 18672 states have (on average 1.2649957155098543) internal successors, (23620), 19574 states have internal predecessors, (23620), 10729 states have call successors, (10729), 2829 states have call predecessors, (10729), 2772 states have return successors, (10774), 10294 states have call predecessors, (10774), 10717 states have call successors, (10774) [2022-12-14 15:53:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32176 states to 32176 states and 45123 transitions. [2022-12-14 15:53:23,513 INFO L78 Accepts]: Start accepts. Automaton has 32176 states and 45123 transitions. Word has length 222 [2022-12-14 15:53:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:23,513 INFO L495 AbstractCegarLoop]: Abstraction has 32176 states and 45123 transitions. [2022-12-14 15:53:23,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 15:53:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 32176 states and 45123 transitions. [2022-12-14 15:53:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-14 15:53:23,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:23,516 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 5, 5, 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] [2022-12-14 15:53:23,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:53:23,517 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:53:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1440292468, now seen corresponding path program 1 times [2022-12-14 15:53:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224241829] [2022-12-14 15:53:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2022-12-14 15:53:24,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:24,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224241829] [2022-12-14 15:53:24,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224241829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:24,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:24,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:53:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915066364] [2022-12-14 15:53:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:24,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:53:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:53:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:53:24,309 INFO L87 Difference]: Start difference. First operand 32176 states and 45123 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 15:53:26,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:32,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:34,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:39,187 WARN L539 Checker$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 15:53:43,344 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 15:53:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:43,518 INFO L93 Difference]: Finished difference Result 42469 states and 59095 transitions. [2022-12-14 15:53:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:53:43,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 226 [2022-12-14 15:53:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:43,699 INFO L225 Difference]: With dead ends: 42469 [2022-12-14 15:53:43,700 INFO L226 Difference]: Without dead ends: 42467 [2022-12-14 15:53:43,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:53:43,713 INFO L413 NwaCegarLoop]: 2172 mSDtfsCounter, 1879 mSDsluCounter, 5906 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:43,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 8078 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1169 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 15:53:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42467 states. [2022-12-14 15:53:45,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42467 to 42449. [2022-12-14 15:53:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42449 states, 24645 states have (on average 1.2626496246703185) internal successors, (31118), 25850 states have internal predecessors, (31118), 13920 states have call successors, (13920), 3992 states have call predecessors, (13920), 3881 states have return successors, (14038), 13266 states have call predecessors, (14038), 13904 states have call successors, (14038) [2022-12-14 15:53:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42449 states to 42449 states and 59076 transitions. [2022-12-14 15:53:45,438 INFO L78 Accepts]: Start accepts. Automaton has 42449 states and 59076 transitions. Word has length 226 [2022-12-14 15:53:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:45,438 INFO L495 AbstractCegarLoop]: Abstraction has 42449 states and 59076 transitions. [2022-12-14 15:53:45,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 15:53:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 42449 states and 59076 transitions. [2022-12-14 15:53:45,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-12-14 15:53:45,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:45,442 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 8, 7, 7, 5, 5, 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] [2022-12-14 15:53:45,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:53:45,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:53:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 571872927, now seen corresponding path program 1 times [2022-12-14 15:53:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:45,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429991423] [2022-12-14 15:53:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-12-14 15:53:46,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:46,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429991423] [2022-12-14 15:53:46,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429991423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:46,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:46,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:53:46,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779656401] [2022-12-14 15:53:46,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:46,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:53:46,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:53:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:53:46,126 INFO L87 Difference]: Start difference. First operand 42449 states and 59076 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:53:48,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:53,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:55,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:53:57,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:01,093 WARN L539 Checker$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 15:54:04,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:06,459 WARN L539 Checker$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 15:54:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:54:06,613 INFO L93 Difference]: Finished difference Result 42466 states and 59089 transitions. [2022-12-14 15:54:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:54:06,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 232 [2022-12-14 15:54:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:54:06,734 INFO L225 Difference]: With dead ends: 42466 [2022-12-14 15:54:06,734 INFO L226 Difference]: Without dead ends: 42464 [2022-12-14 15:54:06,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:54:06,755 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1958 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:54:06,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 8315 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2022-12-14 15:54:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42464 states. [2022-12-14 15:54:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42464 to 42457. [2022-12-14 15:54:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42457 states, 24651 states have (on average 1.262585696320636) internal successors, (31124), 25856 states have internal predecessors, (31124), 13920 states have call successors, (13920), 3994 states have call predecessors, (13920), 3883 states have return successors, (14038), 13266 states have call predecessors, (14038), 13904 states have call successors, (14038) [2022-12-14 15:54:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42457 states to 42457 states and 59082 transitions. [2022-12-14 15:54:08,519 INFO L78 Accepts]: Start accepts. Automaton has 42457 states and 59082 transitions. Word has length 232 [2022-12-14 15:54:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:54:08,520 INFO L495 AbstractCegarLoop]: Abstraction has 42457 states and 59082 transitions. [2022-12-14 15:54:08,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:54:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 42457 states and 59082 transitions. [2022-12-14 15:54:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-12-14 15:54:08,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:54:08,523 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 9, 8, 8, 5, 5, 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] [2022-12-14 15:54:08,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 15:54:08,523 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:54:08,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:54:08,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1801019316, now seen corresponding path program 1 times [2022-12-14 15:54:08,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:54:08,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937827553] [2022-12-14 15:54:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:54:08,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:54:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:54:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2022-12-14 15:54:09,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:54:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937827553] [2022-12-14 15:54:09,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937827553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:54:09,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:54:09,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:54:09,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641697421] [2022-12-14 15:54:09,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:54:09,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:54:09,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:54:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:54:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:54:09,131 INFO L87 Difference]: Start difference. First operand 42457 states and 59082 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:54:11,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:17,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:18,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:20,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:24,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:28,221 WARN L539 Checker$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 15:54:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:54:28,387 INFO L93 Difference]: Finished difference Result 42474 states and 59095 transitions. [2022-12-14 15:54:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:54:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 236 [2022-12-14 15:54:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:54:28,508 INFO L225 Difference]: With dead ends: 42474 [2022-12-14 15:54:28,508 INFO L226 Difference]: Without dead ends: 42472 [2022-12-14 15:54:28,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:54:28,527 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1958 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:54:28,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 8315 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1179 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2022-12-14 15:54:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42472 states. [2022-12-14 15:54:30,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42472 to 42465. [2022-12-14 15:54:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42465 states, 24657 states have (on average 1.2625217990834245) internal successors, (31130), 25862 states have internal predecessors, (31130), 13920 states have call successors, (13920), 3996 states have call predecessors, (13920), 3885 states have return successors, (14038), 13266 states have call predecessors, (14038), 13904 states have call successors, (14038) [2022-12-14 15:54:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42465 states to 42465 states and 59088 transitions. [2022-12-14 15:54:30,377 INFO L78 Accepts]: Start accepts. Automaton has 42465 states and 59088 transitions. Word has length 236 [2022-12-14 15:54:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:54:30,378 INFO L495 AbstractCegarLoop]: Abstraction has 42465 states and 59088 transitions. [2022-12-14 15:54:30,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:54:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 42465 states and 59088 transitions. [2022-12-14 15:54:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-14 15:54:30,381 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:54:30,381 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 4, 4, 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] [2022-12-14 15:54:30,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 15:54:30,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:54:30,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:54:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1843296819, now seen corresponding path program 1 times [2022-12-14 15:54:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:54:30,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994624885] [2022-12-14 15:54:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:54:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:54:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:54:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-12-14 15:54:31,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:54:31,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994624885] [2022-12-14 15:54:31,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994624885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:54:31,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:54:31,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:54:31,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167714611] [2022-12-14 15:54:31,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:54:31,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:54:31,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:54:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:54:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:54:31,044 INFO L87 Difference]: Start difference. First operand 42465 states and 59088 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:54:33,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:38,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:40,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:42,280 WARN L539 Checker$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 15:54:46,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:50,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:52,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:54:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:54:52,636 INFO L93 Difference]: Finished difference Result 42482 states and 59101 transitions. [2022-12-14 15:54:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:54:52,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2022-12-14 15:54:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:54:52,744 INFO L225 Difference]: With dead ends: 42482 [2022-12-14 15:54:52,745 INFO L226 Difference]: Without dead ends: 42480 [2022-12-14 15:54:52,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:54:52,759 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 1959 mSDsluCounter, 6101 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:54:52,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 8315 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1180 Invalid, 3 Unknown, 0 Unchecked, 19.6s Time] [2022-12-14 15:54:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42480 states. [2022-12-14 15:54:54,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42480 to 42473. [2022-12-14 15:54:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42473 states, 24663 states have (on average 1.262457932935977) internal successors, (31136), 25868 states have internal predecessors, (31136), 13920 states have call successors, (13920), 3998 states have call predecessors, (13920), 3887 states have return successors, (14038), 13266 states have call predecessors, (14038), 13904 states have call successors, (14038) [2022-12-14 15:54:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42473 states to 42473 states and 59094 transitions. [2022-12-14 15:54:54,662 INFO L78 Accepts]: Start accepts. Automaton has 42473 states and 59094 transitions. Word has length 238 [2022-12-14 15:54:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:54:54,663 INFO L495 AbstractCegarLoop]: Abstraction has 42473 states and 59094 transitions. [2022-12-14 15:54:54,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:54:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 42473 states and 59094 transitions. [2022-12-14 15:54:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-14 15:54:54,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:54:54,667 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 11, 10, 10, 5, 5, 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] [2022-12-14 15:54:54,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:54:54,667 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:54:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:54:54,667 INFO L85 PathProgramCache]: Analyzing trace with hash 923311884, now seen corresponding path program 1 times [2022-12-14 15:54:54,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:54:54,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487112955] [2022-12-14 15:54:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:54:54,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:54:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:54:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2022-12-14 15:54:55,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:54:55,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487112955] [2022-12-14 15:54:55,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487112955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:54:55,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:54:55,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:54:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866984225] [2022-12-14 15:54:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:54:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:54:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:54:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:54:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:54:55,355 INFO L87 Difference]: Start difference. First operand 42473 states and 59094 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:54:57,417 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 15:55:03,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:11,551 WARN L539 Checker$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 15:55:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:11,870 INFO L93 Difference]: Finished difference Result 42486 states and 59103 transitions. [2022-12-14 15:55:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:55:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 246 [2022-12-14 15:55:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:11,995 INFO L225 Difference]: With dead ends: 42486 [2022-12-14 15:55:11,995 INFO L226 Difference]: Without dead ends: 42484 [2022-12-14 15:55:12,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:55:12,014 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 1884 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 8696 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:12,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 8696 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1404 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-12-14 15:55:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42484 states. [2022-12-14 15:55:13,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42484 to 42477. [2022-12-14 15:55:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42477 states, 24666 states have (on average 1.2624260115138246) internal successors, (31139), 25871 states have internal predecessors, (31139), 13920 states have call successors, (13920), 3999 states have call predecessors, (13920), 3888 states have return successors, (14038), 13266 states have call predecessors, (14038), 13904 states have call successors, (14038) [2022-12-14 15:55:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42477 states to 42477 states and 59097 transitions. [2022-12-14 15:55:13,983 INFO L78 Accepts]: Start accepts. Automaton has 42477 states and 59097 transitions. Word has length 246 [2022-12-14 15:55:13,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:13,983 INFO L495 AbstractCegarLoop]: Abstraction has 42477 states and 59097 transitions. [2022-12-14 15:55:13,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:55:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 42477 states and 59097 transitions. [2022-12-14 15:55:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-14 15:55:13,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:13,988 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 12, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:55:13,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 15:55:13,988 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:55:13,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash -286704481, now seen corresponding path program 1 times [2022-12-14 15:55:13,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:13,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791978511] [2022-12-14 15:55:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:13,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-12-14 15:55:14,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:14,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791978511] [2022-12-14 15:55:14,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791978511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:14,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:14,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:55:14,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146608290] [2022-12-14 15:55:14,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:14,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:55:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:14,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:55:14,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:55:14,652 INFO L87 Difference]: Start difference. First operand 42477 states and 59097 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:55:16,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:23,220 WARN L539 Checker$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 15:55:31,137 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 15:55:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:32,013 INFO L93 Difference]: Finished difference Result 71693 states and 99863 transitions. [2022-12-14 15:55:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:55:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 252 [2022-12-14 15:55:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:32,217 INFO L225 Difference]: With dead ends: 71693 [2022-12-14 15:55:32,217 INFO L226 Difference]: Without dead ends: 71689 [2022-12-14 15:55:32,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:55:32,242 INFO L413 NwaCegarLoop]: 2324 mSDtfsCounter, 1829 mSDsluCounter, 6315 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 8639 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:32,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 8639 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1398 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-12-14 15:55:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71689 states. [2022-12-14 15:55:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71689 to 71657. [2022-12-14 15:55:35,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71657 states, 41713 states have (on average 1.267230839306691) internal successors, (52860), 43818 states have internal predecessors, (52860), 23331 states have call successors, (23331), 6840 states have call predecessors, (23331), 6610 states have return successors, (23636), 22114 states have call predecessors, (23636), 23303 states have call successors, (23636) [2022-12-14 15:55:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71657 states to 71657 states and 99827 transitions. [2022-12-14 15:55:35,640 INFO L78 Accepts]: Start accepts. Automaton has 71657 states and 99827 transitions. Word has length 252 [2022-12-14 15:55:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 71657 states and 99827 transitions. [2022-12-14 15:55:35,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:55:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 71657 states and 99827 transitions. [2022-12-14 15:55:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 15:55:35,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:35,644 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 4, 4, 3, 3, 3, 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] [2022-12-14 15:55:35,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:55:35,645 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:55:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 559895312, now seen corresponding path program 1 times [2022-12-14 15:55:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:35,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173786724] [2022-12-14 15:55:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-12-14 15:55:36,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:36,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173786724] [2022-12-14 15:55:36,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173786724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:36,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:36,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:55:36,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063523649] [2022-12-14 15:55:36,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:36,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:55:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:36,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:55:36,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:55:36,123 INFO L87 Difference]: Start difference. First operand 71657 states and 99827 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 15:55:38,182 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 15:55:43,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:45,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:51,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:55:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:55:52,790 INFO L93 Difference]: Finished difference Result 160999 states and 224267 transitions. [2022-12-14 15:55:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:55:52,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 253 [2022-12-14 15:55:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:55:53,106 INFO L225 Difference]: With dead ends: 160999 [2022-12-14 15:55:53,106 INFO L226 Difference]: Without dead ends: 89664 [2022-12-14 15:55:53,268 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 15:55:53,268 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 1239 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:55:53,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 4404 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 830 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-12-14 15:55:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89664 states. [2022-12-14 15:55:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89664 to 89345. [2022-12-14 15:55:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89345 states, 52270 states have (on average 1.2667687009757032) internal successors, (66214), 54885 states have internal predecessors, (66214), 28775 states have call successors, (28775), 8583 states have call predecessors, (28775), 8297 states have return successors, (29110), 27251 states have call predecessors, (29110), 28747 states have call successors, (29110) [2022-12-14 15:55:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89345 states to 89345 states and 124099 transitions. [2022-12-14 15:55:58,377 INFO L78 Accepts]: Start accepts. Automaton has 89345 states and 124099 transitions. Word has length 253 [2022-12-14 15:55:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:55:58,377 INFO L495 AbstractCegarLoop]: Abstraction has 89345 states and 124099 transitions. [2022-12-14 15:55:58,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 15:55:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 89345 states and 124099 transitions. [2022-12-14 15:55:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-12-14 15:55:58,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:55:58,382 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 13, 12, 12, 5, 5, 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] [2022-12-14 15:55:58,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 15:55:58,383 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:55:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:55:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1144374513, now seen corresponding path program 1 times [2022-12-14 15:55:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:55:58,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151679038] [2022-12-14 15:55:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:55:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:55:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:55:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1039 trivial. 0 not checked. [2022-12-14 15:55:59,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:55:59,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151679038] [2022-12-14 15:55:59,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151679038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:55:59,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:55:59,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:55:59,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381093255] [2022-12-14 15:55:59,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:55:59,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:55:59,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:55:59,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:55:59,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:55:59,197 INFO L87 Difference]: Start difference. First operand 89345 states and 124099 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:56:01,257 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 15:56:07,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:16,147 WARN L539 Checker$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 15:56:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:17,276 INFO L93 Difference]: Finished difference Result 89352 states and 124103 transitions. [2022-12-14 15:56:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:56:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 257 [2022-12-14 15:56:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:17,550 INFO L225 Difference]: With dead ends: 89352 [2022-12-14 15:56:17,550 INFO L226 Difference]: Without dead ends: 89164 [2022-12-14 15:56:17,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:56:17,588 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 1880 mSDsluCounter, 6357 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 8698 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:17,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 8698 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1400 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 15:56:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89164 states. [2022-12-14 15:56:21,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89164 to 89159. [2022-12-14 15:56:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89159 states, 52212 states have (on average 1.2661457136290508) internal successors, (66108), 54780 states have internal predecessors, (66108), 28663 states have call successors, (28663), 8553 states have call predecessors, (28663), 8281 states have return successors, (29002), 27200 states have call predecessors, (29002), 28639 states have call successors, (29002) [2022-12-14 15:56:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89159 states to 89159 states and 123773 transitions. [2022-12-14 15:56:21,861 INFO L78 Accepts]: Start accepts. Automaton has 89159 states and 123773 transitions. Word has length 257 [2022-12-14 15:56:21,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:21,862 INFO L495 AbstractCegarLoop]: Abstraction has 89159 states and 123773 transitions. [2022-12-14 15:56:21,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:56:21,862 INFO L276 IsEmpty]: Start isEmpty. Operand 89159 states and 123773 transitions. [2022-12-14 15:56:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-12-14 15:56:21,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:21,867 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:56:21,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 15:56:21,867 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:56:21,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:21,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1476745508, now seen corresponding path program 1 times [2022-12-14 15:56:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:21,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292185335] [2022-12-14 15:56:21,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:21,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-12-14 15:56:23,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:23,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292185335] [2022-12-14 15:56:23,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292185335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:23,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:23,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:23,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053638224] [2022-12-14 15:56:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:23,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:23,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:23,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:23,126 INFO L87 Difference]: Start difference. First operand 89159 states and 123773 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:56:25,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:30,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:32,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:34,424 WARN L539 Checker$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 15:56:39,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:43,743 WARN L539 Checker$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 15:56:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:56:44,409 INFO L93 Difference]: Finished difference Result 89456 states and 124066 transitions. [2022-12-14 15:56:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:56:44,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 315 [2022-12-14 15:56:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:56:44,664 INFO L225 Difference]: With dead ends: 89456 [2022-12-14 15:56:44,664 INFO L226 Difference]: Without dead ends: 89454 [2022-12-14 15:56:44,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:56:44,698 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 1839 mSDsluCounter, 5917 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:56:44,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 8086 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1154 Invalid, 4 Unknown, 0 Unchecked, 17.5s Time] [2022-12-14 15:56:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89454 states. [2022-12-14 15:56:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89454 to 89419. [2022-12-14 15:56:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89419 states, 52407 states have (on average 1.2650600110672239) internal successors, (66298), 54975 states have internal predecessors, (66298), 28663 states have call successors, (28663), 8618 states have call predecessors, (28663), 8346 states have return successors, (29002), 27200 states have call predecessors, (29002), 28639 states have call successors, (29002) [2022-12-14 15:56:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89419 states to 89419 states and 123963 transitions. [2022-12-14 15:56:48,960 INFO L78 Accepts]: Start accepts. Automaton has 89419 states and 123963 transitions. Word has length 315 [2022-12-14 15:56:48,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:56:48,961 INFO L495 AbstractCegarLoop]: Abstraction has 89419 states and 123963 transitions. [2022-12-14 15:56:48,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:56:48,961 INFO L276 IsEmpty]: Start isEmpty. Operand 89419 states and 123963 transitions. [2022-12-14 15:56:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-12-14 15:56:48,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:56:48,967 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:56:48,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 15:56:48,967 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:56:48,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:56:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1816609202, now seen corresponding path program 1 times [2022-12-14 15:56:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:56:48,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371398421] [2022-12-14 15:56:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:56:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:56:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:56:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2022-12-14 15:56:49,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:56:49,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371398421] [2022-12-14 15:56:49,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371398421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:56:49,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:56:49,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:56:49,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836511938] [2022-12-14 15:56:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:56:49,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:56:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:56:49,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:56:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:56:49,828 INFO L87 Difference]: Start difference. First operand 89419 states and 123963 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2022-12-14 15:56:51,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:56:58,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:00,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:02,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:03,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:09,578 WARN L539 Checker$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 15:57:11,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:11,050 INFO L93 Difference]: Finished difference Result 90677 states and 125158 transitions. [2022-12-14 15:57:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:57:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 333 [2022-12-14 15:57:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:11,309 INFO L225 Difference]: With dead ends: 90677 [2022-12-14 15:57:11,310 INFO L226 Difference]: Without dead ends: 90675 [2022-12-14 15:57:11,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:57:11,339 INFO L413 NwaCegarLoop]: 1760 mSDtfsCounter, 135 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:11,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 6929 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1196 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-12-14 15:57:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90675 states. [2022-12-14 15:57:16,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90675 to 90675. [2022-12-14 15:57:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90675 states, 53081 states have (on average 1.2614306437331626) internal successors, (66958), 55673 states have internal predecessors, (66958), 28895 states have call successors, (28895), 8968 states have call predecessors, (28895), 8696 states have return successors, (29234), 27432 states have call predecessors, (29234), 28871 states have call successors, (29234) [2022-12-14 15:57:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90675 states to 90675 states and 125087 transitions. [2022-12-14 15:57:16,597 INFO L78 Accepts]: Start accepts. Automaton has 90675 states and 125087 transitions. Word has length 333 [2022-12-14 15:57:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:16,598 INFO L495 AbstractCegarLoop]: Abstraction has 90675 states and 125087 transitions. [2022-12-14 15:57:16,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2022-12-14 15:57:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 90675 states and 125087 transitions. [2022-12-14 15:57:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-12-14 15:57:16,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:16,614 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:16,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 15:57:16,615 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:57:16,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1589063164, now seen corresponding path program 1 times [2022-12-14 15:57:16,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:16,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532133017] [2022-12-14 15:57:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:16,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2022-12-14 15:57:17,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:17,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532133017] [2022-12-14 15:57:17,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532133017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:17,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:17,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:57:17,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743884778] [2022-12-14 15:57:17,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:17,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:57:17,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:57:17,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:57:17,599 INFO L87 Difference]: Start difference. First operand 90675 states and 125087 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-14 15:57:19,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:25,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:31,634 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 15:57:33,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:57:33,816 INFO L93 Difference]: Finished difference Result 205382 states and 283309 transitions. [2022-12-14 15:57:33,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:57:33,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 372 [2022-12-14 15:57:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:57:34,229 INFO L225 Difference]: With dead ends: 205382 [2022-12-14 15:57:34,229 INFO L226 Difference]: Without dead ends: 115029 [2022-12-14 15:57:34,419 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 15:57:34,420 INFO L413 NwaCegarLoop]: 2973 mSDtfsCounter, 1742 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:57:34,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4454 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 832 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 15:57:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115029 states. [2022-12-14 15:57:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115029 to 114778. [2022-12-14 15:57:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114778 states, 67152 states have (on average 1.2589945198951633) internal successors, (84544), 70374 states have internal predecessors, (84544), 36546 states have call successors, (36546), 11438 states have call predecessors, (36546), 11077 states have return successors, (36915), 34733 states have call predecessors, (36915), 36522 states have call successors, (36915) [2022-12-14 15:57:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114778 states to 114778 states and 158005 transitions. [2022-12-14 15:57:40,766 INFO L78 Accepts]: Start accepts. Automaton has 114778 states and 158005 transitions. Word has length 372 [2022-12-14 15:57:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:57:40,766 INFO L495 AbstractCegarLoop]: Abstraction has 114778 states and 158005 transitions. [2022-12-14 15:57:40,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-12-14 15:57:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 114778 states and 158005 transitions. [2022-12-14 15:57:40,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-12-14 15:57:40,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:57:40,777 INFO L195 NwaCegarLoop]: trace histogram [23, 13, 13, 13, 13, 13, 13, 12, 12, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:57:40,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 15:57:40,777 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:57:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:57:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2021744457, now seen corresponding path program 1 times [2022-12-14 15:57:40,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:57:40,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693970252] [2022-12-14 15:57:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:57:40,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:57:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:57:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1223 trivial. 0 not checked. [2022-12-14 15:57:42,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:57:42,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693970252] [2022-12-14 15:57:42,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693970252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:57:42,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:57:42,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:57:42,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416362898] [2022-12-14 15:57:42,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:57:42,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:57:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:57:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:57:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:57:42,070 INFO L87 Difference]: Start difference. First operand 114778 states and 158005 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 15:57:44,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:49,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:57:51,382 WARN L539 Checker$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 15:57:57,465 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 15:58:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:00,060 INFO L93 Difference]: Finished difference Result 247601 states and 340931 transitions. [2022-12-14 15:58:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:58:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 415 [2022-12-14 15:58:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:00,508 INFO L225 Difference]: With dead ends: 247601 [2022-12-14 15:58:00,509 INFO L226 Difference]: Without dead ends: 133145 [2022-12-14 15:58:00,760 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 15:58:00,761 INFO L413 NwaCegarLoop]: 2582 mSDtfsCounter, 1257 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 4273 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:00,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 4273 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 760 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 15:58:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133145 states. [2022-12-14 15:58:07,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133145 to 132894. [2022-12-14 15:58:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132894 states, 78034 states have (on average 1.2599379757541584) internal successors, (98318), 81758 states have internal predecessors, (98318), 41996 states have call successors, (41996), 13274 states have call predecessors, (41996), 12861 states have return successors, (42395), 39892 states have call predecessors, (42395), 41972 states have call successors, (42395) [2022-12-14 15:58:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132894 states to 132894 states and 182709 transitions. [2022-12-14 15:58:07,614 INFO L78 Accepts]: Start accepts. Automaton has 132894 states and 182709 transitions. Word has length 415 [2022-12-14 15:58:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:07,614 INFO L495 AbstractCegarLoop]: Abstraction has 132894 states and 182709 transitions. [2022-12-14 15:58:07,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 15:58:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 132894 states and 182709 transitions. [2022-12-14 15:58:07,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-12-14 15:58:07,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:07,624 INFO L195 NwaCegarLoop]: trace histogram [23, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:58:07,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 15:58:07,624 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:58:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 250732815, now seen corresponding path program 1 times [2022-12-14 15:58:07,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:07,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448768300] [2022-12-14 15:58:07,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:07,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2022-12-14 15:58:09,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:09,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448768300] [2022-12-14 15:58:09,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448768300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:09,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:09,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:58:09,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991410162] [2022-12-14 15:58:09,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:09,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:09,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:09,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:09,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:09,820 INFO L87 Difference]: Start difference. First operand 132894 states and 182709 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:58:11,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:58:18,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:58:27,604 WARN L539 Checker$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 15:58:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:29,789 INFO L93 Difference]: Finished difference Result 132998 states and 182810 transitions. [2022-12-14 15:58:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:58:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 428 [2022-12-14 15:58:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:30,233 INFO L225 Difference]: With dead ends: 132998 [2022-12-14 15:58:30,233 INFO L226 Difference]: Without dead ends: 132996 [2022-12-14 15:58:30,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:58:30,278 INFO L413 NwaCegarLoop]: 2356 mSDtfsCounter, 1759 mSDsluCounter, 6389 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 8745 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:30,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 8745 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1394 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 15:58:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132996 states. [2022-12-14 15:58:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132996 to 132942. [2022-12-14 15:58:37,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132942 states, 78070 states have (on average 1.2590879979505571) internal successors, (98297), 81794 states have internal predecessors, (98297), 41996 states have call successors, (41996), 13286 states have call predecessors, (41996), 12873 states have return successors, (42395), 39892 states have call predecessors, (42395), 41972 states have call successors, (42395) [2022-12-14 15:58:37,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132942 states to 132942 states and 182688 transitions. [2022-12-14 15:58:37,985 INFO L78 Accepts]: Start accepts. Automaton has 132942 states and 182688 transitions. Word has length 428 [2022-12-14 15:58:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:37,985 INFO L495 AbstractCegarLoop]: Abstraction has 132942 states and 182688 transitions. [2022-12-14 15:58:37,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 15:58:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 132942 states and 182688 transitions. [2022-12-14 15:58:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-12-14 15:58:38,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:38,001 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 14, 14, 4, 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, 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] [2022-12-14 15:58:38,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 15:58:38,001 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:58:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1949946448, now seen corresponding path program 1 times [2022-12-14 15:58:38,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:38,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110748293] [2022-12-14 15:58:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:38,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2022-12-14 15:58:38,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:38,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110748293] [2022-12-14 15:58:38,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110748293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:38,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:38,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:58:38,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80868462] [2022-12-14 15:58:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:38,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:58:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:58:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:38,760 INFO L87 Difference]: Start difference. First operand 132942 states and 182688 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 15:58:40,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:58:45,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:58:53,073 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 15:58:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:56,668 INFO L93 Difference]: Finished difference Result 302429 states and 422733 transitions. [2022-12-14 15:58:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:58:56,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 476 [2022-12-14 15:58:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:57,247 INFO L225 Difference]: With dead ends: 302429 [2022-12-14 15:58:57,248 INFO L226 Difference]: Without dead ends: 169809 [2022-12-14 15:58:57,542 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 15:58:57,542 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 385 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:57,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 3930 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 633 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 15:58:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169809 states. [2022-12-14 15:59:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169809 to 132970. [2022-12-14 15:59:05,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132970 states, 78098 states have (on average 1.25899510870957) internal successors, (98325), 81822 states have internal predecessors, (98325), 41996 states have call successors, (41996), 13286 states have call predecessors, (41996), 12873 states have return successors, (42395), 39892 states have call predecessors, (42395), 41972 states have call successors, (42395) [2022-12-14 15:59:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132970 states to 132970 states and 182716 transitions. [2022-12-14 15:59:05,485 INFO L78 Accepts]: Start accepts. Automaton has 132970 states and 182716 transitions. Word has length 476 [2022-12-14 15:59:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:05,485 INFO L495 AbstractCegarLoop]: Abstraction has 132970 states and 182716 transitions. [2022-12-14 15:59:05,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 15:59:05,486 INFO L276 IsEmpty]: Start isEmpty. Operand 132970 states and 182716 transitions. [2022-12-14 15:59:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-12-14 15:59:05,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:05,501 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 14, 14, 4, 4, 4, 4, 4, 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, 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] [2022-12-14 15:59:05,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 15:59:05,502 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:59:05,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:05,502 INFO L85 PathProgramCache]: Analyzing trace with hash 901807831, now seen corresponding path program 1 times [2022-12-14 15:59:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:05,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391194200] [2022-12-14 15:59:05,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:05,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-12-14 15:59:06,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:06,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391194200] [2022-12-14 15:59:06,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391194200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:06,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:59:06,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:59:06,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696218004] [2022-12-14 15:59:06,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:06,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:59:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:06,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:59:06,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:59:06,206 INFO L87 Difference]: Start difference. First operand 132970 states and 182716 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-12-14 15:59:08,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:59:14,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:59:16,591 WARN L539 Checker$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 15:59:18,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:59:30,278 WARN L539 Checker$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 15:59:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:37,418 INFO L93 Difference]: Finished difference Result 351782 states and 500214 transitions. [2022-12-14 15:59:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:59:37,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 491 [2022-12-14 15:59:37,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:38,433 INFO L225 Difference]: With dead ends: 351782 [2022-12-14 15:59:38,434 INFO L226 Difference]: Without dead ends: 219134 [2022-12-14 15:59:38,754 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 15:59:38,755 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 841 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 6328 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:38,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 6328 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2022-12-14 15:59:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219134 states. [2022-12-14 15:59:47,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219134 to 133138. [2022-12-14 15:59:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133138 states, 78210 states have (on average 1.2589822273366578) internal successors, (98465), 81906 states have internal predecessors, (98465), 42052 states have call successors, (42052), 13286 states have call predecessors, (42052), 12873 states have return successors, (42451), 39948 states have call predecessors, (42451), 42028 states have call successors, (42451) [2022-12-14 15:59:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133138 states to 133138 states and 182968 transitions. [2022-12-14 15:59:48,279 INFO L78 Accepts]: Start accepts. Automaton has 133138 states and 182968 transitions. Word has length 491 [2022-12-14 15:59:48,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:48,279 INFO L495 AbstractCegarLoop]: Abstraction has 133138 states and 182968 transitions. [2022-12-14 15:59:48,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-12-14 15:59:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 133138 states and 182968 transitions. [2022-12-14 15:59:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-12-14 15:59:48,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:48,296 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 14, 14, 4, 4, 4, 4, 4, 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, 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] [2022-12-14 15:59:48,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 15:59:48,296 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:59:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:48,296 INFO L85 PathProgramCache]: Analyzing trace with hash -979470810, now seen corresponding path program 1 times [2022-12-14 15:59:48,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:48,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237711661] [2022-12-14 15:59:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:48,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-12-14 15:59:49,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:49,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237711661] [2022-12-14 15:59:49,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237711661] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:59:49,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541473058] [2022-12-14 15:59:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:49,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:59:49,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:59:49,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:59:49,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:59:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:51,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 5938 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:59:51,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:59:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-12-14 15:59:51,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:59:51,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541473058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:51,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:59:51,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 15:59:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344652686] [2022-12-14 15:59:51,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:51,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:59:51,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:51,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:59:51,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:59:51,364 INFO L87 Difference]: Start difference. First operand 133138 states and 182968 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 15:59:53,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:59:59,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:00:05,989 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 16:00:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:10,138 INFO L93 Difference]: Finished difference Result 245791 states and 338246 transitions. [2022-12-14 16:00:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:00:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 494 [2022-12-14 16:00:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:10,633 INFO L225 Difference]: With dead ends: 245791 [2022-12-14 16:00:10,633 INFO L226 Difference]: Without dead ends: 133222 [2022-12-14 16:00:10,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:00:10,884 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 2 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:10,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3459 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 16:00:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133222 states. [2022-12-14 16:00:18,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133222 to 133150. [2022-12-14 16:00:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133150 states, 78222 states have (on average 1.2589424969957301) internal successors, (98477), 81918 states have internal predecessors, (98477), 42052 states have call successors, (42052), 13286 states have call predecessors, (42052), 12873 states have return successors, (42451), 39948 states have call predecessors, (42451), 42028 states have call successors, (42451) [2022-12-14 16:00:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133150 states to 133150 states and 182980 transitions. [2022-12-14 16:00:19,193 INFO L78 Accepts]: Start accepts. Automaton has 133150 states and 182980 transitions. Word has length 494 [2022-12-14 16:00:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:19,193 INFO L495 AbstractCegarLoop]: Abstraction has 133150 states and 182980 transitions. [2022-12-14 16:00:19,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 16:00:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 133150 states and 182980 transitions. [2022-12-14 16:00:19,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-12-14 16:00:19,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:19,211 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 14, 14, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-12-14 16:00:19,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 16:00:19,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 16:00:19,414 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 16:00:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:19,415 INFO L85 PathProgramCache]: Analyzing trace with hash 500759692, now seen corresponding path program 1 times [2022-12-14 16:00:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:19,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13213202] [2022-12-14 16:00:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1631 trivial. 0 not checked. [2022-12-14 16:00:20,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:20,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13213202] [2022-12-14 16:00:20,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13213202] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:00:20,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680422499] [2022-12-14 16:00:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:20,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:20,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:20,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:20,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 16:00:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:22,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 6066 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 16:00:22,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:00:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2022-12-14 16:00:22,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:00:22,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680422499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:22,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 16:00:22,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 16:00:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396978412] [2022-12-14 16:00:22,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:22,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:00:22,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:22,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:00:22,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:00:22,824 INFO L87 Difference]: Start difference. First operand 133150 states and 182980 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-12-14 16:00:24,905 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 16:00:30,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:00:31,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:00:37,389 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 16:00:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:41,506 INFO L93 Difference]: Finished difference Result 245887 states and 338390 transitions. [2022-12-14 16:00:41,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:00:41,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 524 [2022-12-14 16:00:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:41,949 INFO L225 Difference]: With dead ends: 245887 [2022-12-14 16:00:41,949 INFO L226 Difference]: Without dead ends: 133306 [2022-12-14 16:00:42,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:00:42,193 INFO L413 NwaCegarLoop]: 1736 mSDtfsCounter, 4 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3461 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:42,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3461 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 16:00:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133306 states. [2022-12-14 16:00:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133306 to 133162. [2022-12-14 16:00:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133162 states, 78234 states have (on average 1.2589027788429583) internal successors, (98489), 81930 states have internal predecessors, (98489), 42052 states have call successors, (42052), 13286 states have call predecessors, (42052), 12873 states have return successors, (42451), 39948 states have call predecessors, (42451), 42028 states have call successors, (42451) [2022-12-14 16:00:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133162 states to 133162 states and 182992 transitions. [2022-12-14 16:00:50,243 INFO L78 Accepts]: Start accepts. Automaton has 133162 states and 182992 transitions. Word has length 524 [2022-12-14 16:00:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:50,243 INFO L495 AbstractCegarLoop]: Abstraction has 133162 states and 182992 transitions. [2022-12-14 16:00:50,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2022-12-14 16:00:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 133162 states and 182992 transitions. [2022-12-14 16:00:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-12-14 16:00:50,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:50,262 INFO L195 NwaCegarLoop]: trace histogram [23, 14, 14, 13, 13, 13, 13, 13, 13, 13, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:50,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:00:50,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-14 16:00:50,464 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 16:00:50,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:50,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1791155035, now seen corresponding path program 1 times [2022-12-14 16:00:50,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:50,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050449525] [2022-12-14 16:00:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:50,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2022-12-14 16:00:51,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050449525] [2022-12-14 16:00:51,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050449525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:51,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:51,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 16:00:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108417420] [2022-12-14 16:00:51,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:51,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 16:00:51,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 16:00:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:00:51,313 INFO L87 Difference]: Start difference. First operand 133162 states and 182992 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-12-14 16:00:53,371 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 16:01:00,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:01:01,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:01:03,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:01:05,158 WARN L539 Checker$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 16:01:11,563 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 16:01:15,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:15,146 INFO L93 Difference]: Finished difference Result 133512 states and 183192 transitions. [2022-12-14 16:01:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 16:01:15,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 514 [2022-12-14 16:01:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:15,622 INFO L225 Difference]: With dead ends: 133512 [2022-12-14 16:01:15,622 INFO L226 Difference]: Without dead ends: 133510 [2022-12-14 16:01:15,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 16:01:15,671 INFO L413 NwaCegarLoop]: 1730 mSDtfsCounter, 34 mSDsluCounter, 5120 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:15,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 6850 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1178 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2022-12-14 16:01:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133510 states. [2022-12-14 16:01:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133510 to 133510. [2022-12-14 16:01:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133510 states, 78433 states have (on average 1.2573661596521872) internal successors, (98619), 82128 states have internal predecessors, (98619), 42052 states have call successors, (42052), 13436 states have call predecessors, (42052), 13023 states have return successors, (42451), 39948 states have call predecessors, (42451), 42028 states have call successors, (42451) [2022-12-14 16:01:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133510 states to 133510 states and 183122 transitions. [2022-12-14 16:01:23,436 INFO L78 Accepts]: Start accepts. Automaton has 133510 states and 183122 transitions. Word has length 514 [2022-12-14 16:01:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:23,436 INFO L495 AbstractCegarLoop]: Abstraction has 133510 states and 183122 transitions. [2022-12-14 16:01:23,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-12-14 16:01:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 133510 states and 183122 transitions. [2022-12-14 16:01:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-12-14 16:01:23,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:23,455 INFO L195 NwaCegarLoop]: trace histogram [25, 15, 15, 15, 15, 15, 15, 14, 14, 8, 8, 4, 4, 4, 4, 4, 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, 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] [2022-12-14 16:01:23,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 16:01:23,456 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 16:01:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:23,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2086386834, now seen corresponding path program 1 times [2022-12-14 16:01:23,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:23,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039689621] [2022-12-14 16:01:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:23,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1730 trivial. 0 not checked. [2022-12-14 16:01:24,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039689621] [2022-12-14 16:01:24,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039689621] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:01:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448803522] [2022-12-14 16:01:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:24,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:01:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:01:24,150 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:01:24,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a706a0ca-677f-435f-ac87-1ca51e267906/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:01:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:26,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 6190 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:01:26,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:01:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 16:01:26,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:01:26,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448803522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:26,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 16:01:26,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 16:01:26,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843888595] [2022-12-14 16:01:26,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:26,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:26,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:26,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:01:26,773 INFO L87 Difference]: Start difference. First operand 133510 states and 183122 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 16:01:28,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:01:33,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 16:01:35,729 WARN L539 Checker$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 16:01:41,354 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 16:01:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:47,582 INFO L93 Difference]: Finished difference Result 281650 states and 393613 transitions. [2022-12-14 16:01:47,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:47,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 554 [2022-12-14 16:01:47,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:48,175 INFO L225 Difference]: With dead ends: 281650 [2022-12-14 16:01:48,175 INFO L226 Difference]: Without dead ends: 168709 [2022-12-14 16:01:48,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 16:01:48,450 INFO L413 NwaCegarLoop]: 2040 mSDtfsCounter, 370 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:48,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 3746 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 16:01:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168709 states.