./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-intel-ixgbevf-ixgbevf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:36:09,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:36:09,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:36:09,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:36:09,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:36:09,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:36:09,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:36:09,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:36:09,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:36:09,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:36:09,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:36:09,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:36:09,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:36:09,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:36:09,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:36:09,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:36:09,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:36:09,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:36:09,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:36:09,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:36:09,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:36:09,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:36:09,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:36:09,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:36:09,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:36:09,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:36:09,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:36:09,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:36:09,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:36:09,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:36:09,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:36:09,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:36:09,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:36:09,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:36:09,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:36:09,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:36:09,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:36:09,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:36:09,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:36:09,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:36:09,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:36:09,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:36:09,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:36:09,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:36:09,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:36:09,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:36:09,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:36:09,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:36:09,978 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:36:09,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:36:09,979 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:36:09,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:36:09,980 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:36:09,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:36:09,981 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:36:09,981 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:36:09,981 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:36:09,982 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:36:09,982 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:36:09,982 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:36:09,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:36:09,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:36:09,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:36:09,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:36:09,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:36:09,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:36:09,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:36:09,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:36:09,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:36:09,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:36:09,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:36:09,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:09,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:36:09,988 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:36:09,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:36:09,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:36:09,988 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:36:09,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:36:09,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:36:09,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:36:09,989 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_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2022-11-25 22:36:10,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:36:10,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:36:10,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:36:10,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:36:10,361 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:36:10,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-11-25 22:36:13,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:36:14,933 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:36:14,933 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-11-25 22:36:15,030 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/data/74c271ecf/5cc244664e6d4d1882979e1eada5060a/FLAG3042aa033 [2022-11-25 22:36:15,051 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/data/74c271ecf/5cc244664e6d4d1882979e1eada5060a [2022-11-25 22:36:15,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:36:15,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:36:15,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:15,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:36:15,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:36:15,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:15" (1/1) ... [2022-11-25 22:36:15,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8ab785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:15, skipping insertion in model container [2022-11-25 22:36:15,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:15" (1/1) ... [2022-11-25 22:36:15,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:36:15,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:36:16,322 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:16,327 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:16,729 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-11-25 22:36:16,744 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-11-25 22:36:17,338 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:17,338 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:17,339 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:17,361 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:17,364 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:36:17,370 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:17,372 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:36:17,381 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:17,387 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:17,395 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:17,397 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:17,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:17,507 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-25 22:36:17,508 WARN L623 FunctionHandler]: Unknown extern function dev_open [2022-11-25 22:36:17,509 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 22:36:17,652 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 22:36:17,775 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-11-25 22:36:17,982 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:17,998 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-25 22:36:18,015 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-25 22:36:18,068 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:36:18,084 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 22:36:18,108 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:36:18,128 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 22:36:18,246 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:36:18,269 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 22:36:18,380 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:18,511 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:36:18,512 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:36:18,512 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 22:36:18,522 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 22:36:18,531 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 22:36:18,541 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 22:36:18,550 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 22:36:18,597 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 22:36:18,608 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:18,610 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 22:36:18,619 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 22:36:18,637 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 22:36:18,777 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 22:36:18,819 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-11-25 22:36:18,914 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 22:36:18,945 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 22:36:18,946 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:19,038 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:19,040 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:36:19,057 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:19,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:19,091 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:19,107 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:19,107 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:36:19,145 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 22:36:19,153 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 22:36:19,245 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:19,246 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:19,248 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:19,249 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:19,249 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-25 22:36:19,549 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 22:36:19,599 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 22:36:19,661 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:36:19,671 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:19,683 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:19,706 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:19,715 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:19,983 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-11-25 22:36:19,983 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 22:36:19,994 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 22:36:20,015 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:20,017 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,055 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:36:20,061 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:20,062 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:36:20,077 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 22:36:20,220 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 22:36:20,239 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:20,240 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,290 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:20,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,299 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:20,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,345 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 22:36:20,346 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-11-25 22:36:20,355 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,356 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:20,384 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,385 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:20,472 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:20,498 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:20,499 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:20,500 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:20,501 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:20,501 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:20,510 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msix [2022-11-25 22:36:20,511 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,511 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,530 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,531 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,541 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-11-25 22:36:20,542 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-11-25 22:36:20,550 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 22:36:20,551 WARN L623 FunctionHandler]: Unknown extern function napi_hash_add [2022-11-25 22:36:20,552 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-11-25 22:36:20,552 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 22:36:20,552 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,561 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-11-25 22:36:20,562 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 22:36:20,562 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,570 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msix [2022-11-25 22:36:20,571 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,589 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,589 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:20,600 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:36:20,601 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,602 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,602 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,603 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,604 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,639 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:20,641 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,641 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 22:36:20,642 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:20,643 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:20,643 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-25 22:36:20,644 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:20,654 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 22:36:20,655 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:20,665 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 22:36:20,666 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:20,667 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,676 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:20,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,712 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 22:36:20,714 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-11-25 22:36:20,726 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 22:36:20,727 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:36:20,728 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 22:36:20,728 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:36:20,759 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,785 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:20,786 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:20,814 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:36:20,815 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-25 22:36:20,815 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-25 22:36:20,815 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:20,816 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:20,824 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:36:20,825 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 22:36:20,825 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:20,825 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 22:36:20,826 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,826 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:20,827 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-25 22:36:20,827 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-25 22:36:20,827 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,828 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:36:20,864 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:36:20,865 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,865 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 22:36:20,866 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,866 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:20,867 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:20,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,871 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:36:20,872 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:36:20,872 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:36:20,873 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:36:20,873 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:36:20,874 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:20,875 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 22:36:20,875 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:36:20,876 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:20,884 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 22:36:20,885 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 22:36:20,885 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 22:36:20,885 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:36:20,886 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:20,894 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:36:20,895 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:20,903 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 22:36:20,903 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:20,904 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:20,912 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:36:20,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:20,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:21,388 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,388 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,389 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,389 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,389 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,390 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,390 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,390 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,391 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,391 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,391 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,392 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,392 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,392 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,393 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,393 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,393 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,394 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,394 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,394 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,397 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,397 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:21,401 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:36:21,405 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:36:21,409 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:21,410 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:21,411 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:21,411 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:21,423 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:21,425 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:36:21,437 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:21,438 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:21,441 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:21,442 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:21,443 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:21,443 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:21,444 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:21,445 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 22:36:21,445 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 22:36:21,446 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:21,446 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:36:21,447 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:36:21,448 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:36:21,448 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 22:36:21,449 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 22:36:21,449 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:36:21,450 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:36:21,450 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 22:36:21,451 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 22:36:21,531 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:36:21,532 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:36:21,547 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:36:22,665 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2022-11-25 22:36:22,672 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2022-11-25 22:36:22,674 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2022-11-25 22:36:22,674 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2022-11-25 22:36:22,679 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,680 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,690 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,716 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,791 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,792 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:22,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:22,895 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:36:23,058 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:23,068 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:23,163 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-11-25 22:36:23,241 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-11-25 22:36:23,291 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:23,292 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:23,293 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:36:23,295 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:23,297 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:36:23,299 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,300 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:36:23,302 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,304 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,311 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,312 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,337 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-25 22:36:23,338 WARN L623 FunctionHandler]: Unknown extern function dev_open [2022-11-25 22:36:23,338 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 22:36:23,345 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 22:36:23,349 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-11-25 22:36:23,351 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:23,358 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-25 22:36:23,359 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-25 22:36:23,359 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:36:23,360 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-25 22:36:23,360 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:36:23,361 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-25 22:36:23,362 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:36:23,362 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 22:36:23,363 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,368 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:36:23,370 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 22:36:23,370 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 22:36:23,371 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 22:36:23,373 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 22:36:23,374 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 22:36:23,374 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-25 22:36:23,377 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 22:36:23,378 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,379 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 22:36:23,380 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-25 22:36:23,380 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 22:36:23,383 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 22:36:23,385 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-11-25 22:36:23,390 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 22:36:23,391 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 22:36:23,391 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:23,393 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:23,394 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:36:23,395 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,395 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,397 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:23,398 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:36:23,399 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:36:23,399 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 22:36:23,400 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 22:36:23,402 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:23,402 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:23,403 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:23,403 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:36:23,404 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-25 22:36:23,408 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 22:36:23,411 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 22:36:23,412 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:36:23,413 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,414 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,416 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,417 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,443 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-11-25 22:36:23,443 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 22:36:23,444 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 22:36:23,447 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:23,447 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,452 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:36:23,454 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:23,455 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:36:23,473 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 22:36:23,522 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 22:36:23,526 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:23,527 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,531 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:23,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,533 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:23,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,548 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 22:36:23,549 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-11-25 22:36:23,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,555 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:36:23,567 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,570 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 22:36:23,631 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:23,635 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:23,636 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:23,637 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:23,638 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:36:23,638 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:36:23,651 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msix [2022-11-25 22:36:23,652 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,656 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,656 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,659 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-11-25 22:36:23,659 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-11-25 22:36:23,667 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 22:36:23,667 WARN L623 FunctionHandler]: Unknown extern function napi_hash_add [2022-11-25 22:36:23,668 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-11-25 22:36:23,668 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 22:36:23,668 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,669 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-11-25 22:36:23,670 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 22:36:23,670 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,671 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msix [2022-11-25 22:36:23,671 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,673 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,674 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:36:23,681 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:36:23,687 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,699 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,700 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,701 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,718 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:23,720 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,720 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 22:36:23,721 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:36:23,722 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:23,722 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-25 22:36:23,723 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,725 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 22:36:23,726 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,728 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-11-25 22:36:23,729 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,729 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,731 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:36:23,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,738 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 22:36:23,739 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-11-25 22:36:23,743 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 22:36:23,744 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:36:23,745 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 22:36:23,746 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:36:23,754 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,758 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:23,758 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:36:23,769 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:36:23,770 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-25 22:36:23,770 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-25 22:36:23,771 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:23,771 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:23,772 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:36:23,772 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 22:36:23,773 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:23,773 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 22:36:23,773 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,774 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:23,774 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-25 22:36:23,775 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-25 22:36:23,775 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,776 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:36:23,781 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:36:23,781 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,782 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 22:36:23,782 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,783 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:23,786 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:36:23,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,789 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:36:23,790 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:36:23,790 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:36:23,791 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:36:23,791 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:36:23,792 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:36:23,793 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 22:36:23,793 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:36:23,794 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:23,795 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 22:36:23,795 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 22:36:23,796 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 22:36:23,796 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:36:23,797 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:23,797 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:36:23,798 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:36:23,799 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-25 22:36:23,799 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:36:23,800 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:36:23,801 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:36:23,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:36:23,810 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,810 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,810 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,811 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,811 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,811 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,812 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,812 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,812 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,813 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,813 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,813 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,814 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,814 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,814 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,815 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,815 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,815 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,816 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,816 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,816 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,817 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,817 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,817 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,818 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,818 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,818 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,819 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,819 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,822 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:36:23,825 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:36:23,828 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:23,829 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:23,830 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:23,831 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:23,842 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:36:23,848 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:36:23,864 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:36:23,865 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:36:23,872 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:23,874 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:23,874 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:23,875 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:36:23,875 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:23,876 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 22:36:23,876 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 22:36:23,877 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 22:36:23,877 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:36:23,878 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:36:23,878 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:36:23,879 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 22:36:23,879 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-11-25 22:36:23,880 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:36:23,880 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:36:23,881 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 22:36:23,881 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 22:36:23,884 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:36:23,885 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:36:23,885 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:36:23,919 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555016,555029] [2022-11-25 22:36:23,919 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555185,555198] [2022-11-25 22:36:23,920 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555352,555365] [2022-11-25 22:36:23,921 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_f0dec501-cccb-4153-834e-6f52d105ad3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i[555520,555533] [2022-11-25 22:36:23,922 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,928 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,930 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,938 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,943 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,944 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 22:36:23,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:24,412 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:36:24,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24 WrapperNode [2022-11-25 22:36:24,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:24,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:24,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:36:24,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:36:24,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:24,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,007 INFO L138 Inliner]: procedures = 740, calls = 4348, calls flagged for inlining = 368, calls inlined = 334, statements flattened = 9916 [2022-11-25 22:36:25,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:25,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:36:25,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:36:25,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:36:25,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,633 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:36:25,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:36:25,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:36:25,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:36:25,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:25,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:25,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:25,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:36:25,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dec501-cccb-4153-834e-6f52d105ad3a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:36:25,874 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-25 22:36:25,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-25 22:36:25,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 22:36:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 22:36:25,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:36:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:36:25,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-25 22:36:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-25 22:36:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_irq [2022-11-25 22:36:25,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_irq [2022-11-25 22:36:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_rx_resources [2022-11-25 22:36:25,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_rx_resources [2022-11-25 22:36:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:36:25,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:36:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_ctxtdesc [2022-11-25 22:36:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_ctxtdesc [2022-11-25 22:36:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_pointer [2022-11-25 22:36:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_pointer [2022-11-25 22:36:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 22:36:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 22:36:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_eitr [2022-11-25 22:36:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_eitr [2022-11-25 22:36:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-25 22:36:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-25 22:36:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:36:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-25 22:36:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_uc_addr_vf [2022-11-25 22:36:25,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_uc_addr_vf [2022-11-25 22:36:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-25 22:36:25,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-25 22:36:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 22:36:25,879 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 22:36:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 22:36:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 22:36:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2022-11-25 22:36:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2022-11-25 22:36:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 22:36:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 22:36:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_desc_unused [2022-11-25 22:36:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_desc_unused [2022-11-25 22:36:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_ack [2022-11-25 22:36:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_ack [2022-11-25 22:36:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_tx_resources [2022-11-25 22:36:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_tx_resources [2022-11-25 22:36:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_remove [2022-11-25 22:36:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_remove [2022-11-25 22:36:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 22:36:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 22:36:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:36:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:36:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 22:36:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 22:36:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 22:36:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 22:36:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 22:36:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 22:36:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:36:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:36:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-25 22:36:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-25 22:36:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:36:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 22:36:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 22:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_resume [2022-11-25 22:36:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_resume [2022-11-25 22:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-25 22:36:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-25 22:36:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-25 22:36:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-25 22:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-25 22:36:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-25 22:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_mbx_vf [2022-11-25 22:36:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_mbx_vf [2022-11-25 22:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_posted_mbx [2022-11-25 22:36:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_posted_mbx [2022-11-25 22:36:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_mbx_vf [2022-11-25 22:36:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_mbx_vf [2022-11-25 22:36:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 22:36:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 22:36:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-25 22:36:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-25 22:36:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:36:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reinit_locked [2022-11-25 22:36:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reinit_locked [2022-11-25 22:36:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up [2022-11-25 22:36:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up [2022-11-25 22:36:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-25 22:36:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-25 22:36:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 22:36:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 22:36:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 22:36:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 22:36:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_irq [2022-11-25 22:36:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_irq [2022-11-25 22:36:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rar_vf [2022-11-25 22:36:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rar_vf [2022-11-25 22:36:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:36:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:36:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:36:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_78 [2022-11-25 22:36:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_78 [2022-11-25 22:36:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header_len [2022-11-25 22:36:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header_len [2022-11-25 22:36:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:36:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 22:36:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 22:36:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_vfta_vf [2022-11-25 22:36:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_vfta_vf [2022-11-25 22:36:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-25 22:36:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-25 22:36:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:36:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:36:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_down [2022-11-25 22:36:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_down [2022-11-25 22:36:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-25 22:36:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-25 22:36:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-25 22:36:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-25 22:36:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 22:36:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 22:36:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_txq [2022-11-25 22:36:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_txq [2022-11-25 22:36:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-25 22:36:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-25 22:36:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_rx_resources [2022-11-25 22:36:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_rx_resources [2022-11-25 22:36:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 22:36:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 22:36:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_94 [2022-11-25 22:36:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_94 [2022-11-25 22:36:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-25 22:36:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-25 22:36:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_timeout [2022-11-25 22:36:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_timeout [2022-11-25 22:36:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 22:36:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 22:36:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-25 22:36:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-25 22:36:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_negotiate_api [2022-11-25 22:36:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_negotiate_api [2022-11-25 22:36:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 22:36:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-25 22:36:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:36:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 22:36:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 22:36:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 22:36:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 22:36:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 22:36:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 22:36:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_alloc_rx_buffers [2022-11-25 22:36:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_alloc_rx_buffers [2022-11-25 22:36:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-25 22:36:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-25 22:36:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_interrupt_scheme [2022-11-25 22:36:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_interrupt_scheme [2022-11-25 22:36:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-25 22:36:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-25 22:36:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:36:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 22:36:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 22:36:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:36:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:36:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 22:36:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 22:36:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:36:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 22:36:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_tx_resources [2022-11-25 22:36:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_tx_resources [2022-11-25 22:36:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_hw_vf [2022-11-25 22:36:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_hw_vf [2022-11-25 22:36:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-25 22:36:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-25 22:36:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_maybe_stop_tx [2022-11-25 22:36:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_maybe_stop_tx [2022-11-25 22:36:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_msg_vf [2022-11-25 22:36:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_msg_vf [2022-11-25 22:36:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-25 22:36:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-25 22:36:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_busy_poll_recv [2022-11-25 22:36:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_busy_poll_recv [2022-11-25 22:36:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_posted_mbx [2022-11-25 22:36:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_posted_mbx [2022-11-25 22:36:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 22:36:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 22:36:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-25 22:36:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-25 22:36:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 22:36:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 22:36:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_last_counter_stats [2022-11-25 22:36:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_last_counter_stats [2022-11-25 22:36:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_io_resume [2022-11-25 22:36:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_io_resume [2022-11-25 22:36:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 22:36:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 22:36:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up_complete [2022-11-25 22:36:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up_complete [2022-11-25 22:36:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-25 22:36:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-25 22:36:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_ivar [2022-11-25 22:36:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_ivar [2022-11-25 22:36:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_bit_vf [2022-11-25 22:36:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_bit_vf [2022-11-25 22:36:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 22:36:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 22:36:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 22:36:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 22:36:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_shutdown [2022-11-25 22:36:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_shutdown [2022-11-25 22:36:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_interrupt_capability [2022-11-25 22:36:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_interrupt_capability [2022-11-25 22:36:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:36:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:36:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-25 22:36:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-25 22:36:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_nway_reset [2022-11-25 22:36:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_nway_reset [2022-11-25 22:36:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-25 22:36:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-25 22:36:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_obtain_mbx_lock_vf [2022-11-25 22:36:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_obtain_mbx_lock_vf [2022-11-25 22:36:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_tx_ring [2022-11-25 22:36:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_tx_ring [2022-11-25 22:36:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_rst_vf [2022-11-25 22:36:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_rst_vf [2022-11-25 22:36:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_v2p_mailbox [2022-11-25 22:36:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_v2p_mailbox [2022-11-25 22:36:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 22:36:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 22:36:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_ack_vf [2022-11-25 22:36:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_ack_vf [2022-11-25 22:36:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:36:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:36:25,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:36:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:36:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_stats [2022-11-25 22:36:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_stats [2022-11-25 22:36:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 22:36:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-25 22:36:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_irq_enable [2022-11-25 22:36:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_irq_enable [2022-11-25 22:36:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:36:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-25 22:36:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-25 22:36:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-25 22:36:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-25 22:36:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-25 22:36:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-25 22:36:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_start_hw_vf [2022-11-25 22:36:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_start_hw_vf [2022-11-25 22:36:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-25 22:36:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-25 22:36:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-25 22:36:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-25 22:36:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure napi_hash_del [2022-11-25 22:36:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_hash_del [2022-11-25 22:36:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-25 22:36:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-25 22:36:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-25 22:36:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-25 22:36:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2022-11-25 22:36:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2022-11-25 22:36:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rx_mode [2022-11-25 22:36:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rx_mode [2022-11-25 22:36:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-25 22:36:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-25 22:36:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-25 22:36:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-25 22:36:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:36:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:36:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2022-11-25 22:36:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2022-11-25 22:36:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_msg [2022-11-25 22:36:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_msg [2022-11-25 22:36:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_suspend [2022-11-25 22:36:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_suspend [2022-11-25 22:36:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-25 22:36:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-25 22:36:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-25 22:36:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-25 22:36:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 22:36:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 22:36:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:36:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 22:36:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 22:36:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-25 22:36:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-25 22:36:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 22:36:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 22:36:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_link_test [2022-11-25 22:36:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_link_test [2022-11-25 22:36:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:36:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_vlan_rx_add_vid [2022-11-25 22:36:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_vlan_rx_add_vid [2022-11-25 22:36:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_rxq [2022-11-25 22:36:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_rxq [2022-11-25 22:36:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2022-11-25 22:36:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2022-11-25 22:36:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-25 22:36:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-25 22:36:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-25 22:36:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:36:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_mac_addr_vf [2022-11-25 22:36:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_mac_addr_vf [2022-11-25 22:36:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_configure [2022-11-25 22:36:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_configure [2022-11-25 22:36:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_tx_resources [2022-11-25 22:36:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_tx_resources [2022-11-25 22:36:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 22:36:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 22:36:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-25 22:36:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-25 22:36:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_queues [2022-11-25 22:36:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_queues [2022-11-25 22:36:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 22:36:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 22:36:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-25 22:36:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-25 22:36:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_msg_read_ack [2022-11-25 22:36:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_msg_read_ack [2022-11-25 22:36:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:36:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:36:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 22:36:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 22:36:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-25 22:36:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-25 22:36:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 22:36:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 22:36:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-25 22:36:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-25 22:36:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_open [2022-11-25 22:36:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_open [2022-11-25 22:36:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-25 22:36:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-25 22:36:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_93 [2022-11-25 22:36:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_93 [2022-11-25 22:36:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2022-11-25 22:36:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2022-11-25 22:36:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_mac_link_vf [2022-11-25 22:36:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_mac_link_vf [2022-11-25 22:36:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clear_interrupt_scheme [2022-11-25 22:36:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clear_interrupt_scheme [2022-11-25 22:36:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_regs_len [2022-11-25 22:36:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_regs_len [2022-11-25 22:36:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 22:36:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 22:36:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 22:36:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 22:36:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 22:36:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 22:36:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-25 22:36:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-25 22:36:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_mc_addr_list_vf [2022-11-25 22:36:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_mc_addr_list_vf [2022-11-25 22:36:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_rx_resources [2022-11-25 22:36:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_rx_resources [2022-11-25 22:36:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 22:36:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 22:36:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_77 [2022-11-25 22:36:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_77 [2022-11-25 22:36:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-25 22:36:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-25 22:36:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:36:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:36:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:36:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_mbx_params_vf [2022-11-25 22:36:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_mbx_params_vf [2022-11-25 22:36:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-25 22:36:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-25 22:36:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_q_vectors [2022-11-25 22:36:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_q_vectors [2022-11-25 22:36:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:36:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:36:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_disable_rx_queue [2022-11-25 22:36:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_disable_rx_queue [2022-11-25 22:36:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset [2022-11-25 22:36:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset [2022-11-25 22:36:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_close [2022-11-25 22:36:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_close [2022-11-25 22:36:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-25 22:36:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-25 22:36:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-25 22:36:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-25 22:36:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-25 22:36:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-25 22:36:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 22:36:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 22:36:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-25 22:36:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-25 22:36:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-25 22:36:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-25 22:36:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-25 22:36:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-25 22:36:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-25 22:36:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-25 22:36:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-25 22:36:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-25 22:36:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-25 22:36:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-25 22:36:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:36:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:36:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 22:36:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 22:36:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 22:36:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-25 22:36:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_ring [2022-11-25 22:36:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_ring [2022-11-25 22:36:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_stop_hw_vf [2022-11-25 22:36:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_stop_hw_vf [2022-11-25 22:36:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-25 22:36:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-25 22:36:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_hw_vf [2022-11-25 22:36:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_hw_vf [2022-11-25 22:36:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-25 22:36:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-25 22:36:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 22:36:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 22:36:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_unmap_and_free_tx_resource [2022-11-25 22:36:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_unmap_and_free_tx_resource [2022-11-25 22:36:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:36:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-25 22:36:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-25 22:36:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 22:36:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 22:36:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-25 22:36:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-25 22:36:27,789 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:36:27,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:36:27,990 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:39:52,844 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 22:39:53,082 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:39:59,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:39:59,362 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-25 22:39:59,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:59 BoogieIcfgContainer [2022-11-25 22:39:59,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:39:59,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:39:59,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:39:59,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:39:59,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:36:15" (1/3) ... [2022-11-25 22:39:59,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:59, skipping insertion in model container [2022-11-25 22:39:59,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24" (2/3) ... [2022-11-25 22:39:59,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6089b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:59, skipping insertion in model container [2022-11-25 22:39:59,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:59" (3/3) ... [2022-11-25 22:39:59,387 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-11-25 22:39:59,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:39:59,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 22:39:59,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:39:59,574 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;@4cdc7d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:39:59,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 22:39:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 2782 states, 1659 states have (on average 1.2965641952983724) internal successors, (2151), 1703 states have internal predecessors, (2151), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) [2022-11-25 22:39:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-25 22:39:59,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:59,653 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:59,653 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)] === [2022-11-25 22:39:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -224528995, now seen corresponding path program 1 times [2022-11-25 22:39:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:59,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785802207] [2022-11-25 22:39:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:59,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-11-25 22:40:02,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:02,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785802207] [2022-11-25 22:40:02,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785802207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:02,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:02,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:40:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559524176] [2022-11-25 22:40:02,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:40:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:02,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:40:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:02,646 INFO L87 Difference]: Start difference. First operand has 2782 states, 1659 states have (on average 1.2965641952983724) internal successors, (2151), 1703 states have internal predecessors, (2151), 915 states have call successors, (915), 206 states have call predecessors, (915), 205 states have return successors, (908), 904 states have call predecessors, (908), 908 states have call successors, (908) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:04,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:11,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:13,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:20,191 INFO L93 Difference]: Finished difference Result 8133 states and 11773 transitions. [2022-11-25 22:40:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:40:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 311 [2022-11-25 22:40:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:20,262 INFO L225 Difference]: With dead ends: 8133 [2022-11-25 22:40:20,262 INFO L226 Difference]: Without dead ends: 5399 [2022-11-25 22:40:20,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:20,300 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 3761 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3761 SdHoareTripleChecker+Valid, 7597 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:20,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3761 Valid, 7597 Invalid, 1164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1154 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2022-11-25 22:40:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5399 states. [2022-11-25 22:40:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 5395. [2022-11-25 22:40:20,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5395 states, 3241 states have (on average 1.2940450478247454) internal successors, (4194), 3326 states have internal predecessors, (4194), 1745 states have call successors, (1745), 407 states have call predecessors, (1745), 406 states have return successors, (1741), 1733 states have call predecessors, (1741), 1741 states have call successors, (1741) [2022-11-25 22:40:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 7680 transitions. [2022-11-25 22:40:20,848 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 7680 transitions. Word has length 311 [2022-11-25 22:40:20,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:20,850 INFO L495 AbstractCegarLoop]: Abstraction has 5395 states and 7680 transitions. [2022-11-25 22:40:20,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:20,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 7680 transitions. [2022-11-25 22:40:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-25 22:40:20,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:20,871 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:20,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:40:20,872 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)] === [2022-11-25 22:40:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:20,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1390099649, now seen corresponding path program 1 times [2022-11-25 22:40:20,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:20,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021228110] [2022-11-25 22:40:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:20,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-11-25 22:40:22,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:22,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021228110] [2022-11-25 22:40:22,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021228110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:22,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:22,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:40:22,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882379890] [2022-11-25 22:40:22,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:22,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:40:22,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:40:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:22,647 INFO L87 Difference]: Start difference. First operand 5395 states and 7680 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:24,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:29,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:31,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:40,418 INFO L93 Difference]: Finished difference Result 12073 states and 17186 transitions. [2022-11-25 22:40:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:40:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 322 [2022-11-25 22:40:40,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:40,477 INFO L225 Difference]: With dead ends: 12073 [2022-11-25 22:40:40,477 INFO L226 Difference]: Without dead ends: 6737 [2022-11-25 22:40:40,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:40,506 INFO L413 NwaCegarLoop]: 4323 mSDtfsCounter, 2843 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 7650 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:40,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7650 Invalid, 1288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1266 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2022-11-25 22:40:40,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2022-11-25 22:40:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 6708. [2022-11-25 22:40:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6708 states, 4066 states have (on average 1.2924249877029022) internal successors, (5255), 4168 states have internal predecessors, (5255), 2135 states have call successors, (2135), 506 states have call predecessors, (2135), 504 states have return successors, (2131), 2118 states have call predecessors, (2131), 2131 states have call successors, (2131) [2022-11-25 22:40:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6708 states to 6708 states and 9521 transitions. [2022-11-25 22:40:40,947 INFO L78 Accepts]: Start accepts. Automaton has 6708 states and 9521 transitions. Word has length 322 [2022-11-25 22:40:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:40,949 INFO L495 AbstractCegarLoop]: Abstraction has 6708 states and 9521 transitions. [2022-11-25 22:40:40,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6708 states and 9521 transitions. [2022-11-25 22:40:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-25 22:40:40,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:40,961 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:40,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:40:40,961 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)] === [2022-11-25 22:40:40,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:40,971 INFO L85 PathProgramCache]: Analyzing trace with hash 745132791, now seen corresponding path program 1 times [2022-11-25 22:40:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:40,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505828889] [2022-11-25 22:40:40,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:40,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-11-25 22:40:42,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:42,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505828889] [2022-11-25 22:40:42,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505828889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:42,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:42,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:40:42,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730462336] [2022-11-25 22:40:42,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:40:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:42,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:40:42,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:42,608 INFO L87 Difference]: Start difference. First operand 6708 states and 9521 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:44,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:53,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:55,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:58,024 INFO L93 Difference]: Finished difference Result 14575 states and 20609 transitions. [2022-11-25 22:40:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:40:58,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 328 [2022-11-25 22:40:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:58,106 INFO L225 Difference]: With dead ends: 14575 [2022-11-25 22:40:58,106 INFO L226 Difference]: Without dead ends: 7926 [2022-11-25 22:40:58,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:40:58,147 INFO L413 NwaCegarLoop]: 4030 mSDtfsCounter, 2806 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 7357 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:58,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 7357 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1188 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-11-25 22:40:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7926 states. [2022-11-25 22:40:58,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7926 to 7895. [2022-11-25 22:40:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 4787 states have (on average 1.2907875496135366) internal successors, (6179), 4907 states have internal predecessors, (6179), 2471 states have call successors, (2471), 637 states have call predecessors, (2471), 634 states have return successors, (2468), 2442 states have call predecessors, (2468), 2467 states have call successors, (2468) [2022-11-25 22:40:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 11118 transitions. [2022-11-25 22:40:58,795 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 11118 transitions. Word has length 328 [2022-11-25 22:40:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:58,796 INFO L495 AbstractCegarLoop]: Abstraction has 7895 states and 11118 transitions. [2022-11-25 22:40:58,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 22:40:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 11118 transitions. [2022-11-25 22:40:58,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-25 22:40:58,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:58,808 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:58,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:40:58,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-11-25 22:40:58,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash -360338404, now seen corresponding path program 1 times [2022-11-25 22:40:58,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:58,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017190005] [2022-11-25 22:40:58,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:58,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3519 trivial. 0 not checked. [2022-11-25 22:41:01,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:01,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017190005] [2022-11-25 22:41:01,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017190005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:01,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:01,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:41:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939078693] [2022-11-25 22:41:01,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:01,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:01,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:01,500 INFO L87 Difference]: Start difference. First operand 7895 states and 11118 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-25 22:41:03,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:15,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:17,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:23,618 INFO L93 Difference]: Finished difference Result 15165 states and 21398 transitions. [2022-11-25 22:41:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:41:23,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 353 [2022-11-25 22:41:23,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:23,726 INFO L225 Difference]: With dead ends: 15165 [2022-11-25 22:41:23,726 INFO L226 Difference]: Without dead ends: 15163 [2022-11-25 22:41:23,736 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 [2022-11-25 22:41:23,737 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 3841 mSDsluCounter, 11795 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 16057 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:23,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 16057 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2294 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2022-11-25 22:41:23,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15163 states. [2022-11-25 22:41:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15163 to 15154. [2022-11-25 22:41:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15154 states, 9173 states have (on average 1.291180638831353) internal successors, (11844), 9410 states have internal predecessors, (11844), 4754 states have call successors, (4754), 1230 states have call predecessors, (4754), 1224 states have return successors, (4792), 4693 states have call predecessors, (4792), 4746 states have call successors, (4792) [2022-11-25 22:41:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15154 states to 15154 states and 21390 transitions. [2022-11-25 22:41:24,727 INFO L78 Accepts]: Start accepts. Automaton has 15154 states and 21390 transitions. Word has length 353 [2022-11-25 22:41:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:24,729 INFO L495 AbstractCegarLoop]: Abstraction has 15154 states and 21390 transitions. [2022-11-25 22:41:24,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-25 22:41:24,729 INFO L276 IsEmpty]: Start isEmpty. Operand 15154 states and 21390 transitions. [2022-11-25 22:41:24,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-25 22:41:24,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:24,742 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 5, 5, 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] [2022-11-25 22:41:24,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:41:24,742 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)] === [2022-11-25 22:41:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2008346106, now seen corresponding path program 1 times [2022-11-25 22:41:24,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:24,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120911166] [2022-11-25 22:41:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3527 trivial. 0 not checked. [2022-11-25 22:41:27,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:27,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120911166] [2022-11-25 22:41:27,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120911166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:27,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:27,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:41:27,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056647794] [2022-11-25 22:41:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:27,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:27,290 INFO L87 Difference]: Start difference. First operand 15154 states and 21390 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-25 22:41:29,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:44,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:49,405 INFO L93 Difference]: Finished difference Result 22515 states and 31728 transitions. [2022-11-25 22:41:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:41:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 362 [2022-11-25 22:41:49,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:49,534 INFO L225 Difference]: With dead ends: 22515 [2022-11-25 22:41:49,535 INFO L226 Difference]: Without dead ends: 22513 [2022-11-25 22:41:49,551 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 [2022-11-25 22:41:49,552 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:49,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 21.3s Time] [2022-11-25 22:41:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22513 states. [2022-11-25 22:41:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22513 to 22507. [2022-11-25 22:41:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22507 states, 13613 states have (on average 1.2908249467420847) internal successors, (17572), 13970 states have internal predecessors, (17572), 7058 states have call successors, (7058), 1842 states have call predecessors, (7058), 1833 states have return successors, (7093), 6968 states have call predecessors, (7093), 7046 states have call successors, (7093) [2022-11-25 22:41:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22507 states to 22507 states and 31723 transitions. [2022-11-25 22:41:51,232 INFO L78 Accepts]: Start accepts. Automaton has 22507 states and 31723 transitions. Word has length 362 [2022-11-25 22:41:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:51,234 INFO L495 AbstractCegarLoop]: Abstraction has 22507 states and 31723 transitions. [2022-11-25 22:41:51,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-25 22:41:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 22507 states and 31723 transitions. [2022-11-25 22:41:51,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-25 22:41:51,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:51,248 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:51,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:41:51,249 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)] === [2022-11-25 22:41:51,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:51,250 INFO L85 PathProgramCache]: Analyzing trace with hash -780925241, now seen corresponding path program 1 times [2022-11-25 22:41:51,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:51,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357479887] [2022-11-25 22:41:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:51,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3534 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-11-25 22:41:54,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:54,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357479887] [2022-11-25 22:41:54,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357479887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:54,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:54,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:41:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107231902] [2022-11-25 22:41:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:54,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:54,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:54,062 INFO L87 Difference]: Start difference. First operand 22507 states and 31723 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 22:41:56,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:09,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:11,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:17,361 INFO L93 Difference]: Finished difference Result 22519 states and 31731 transitions. [2022-11-25 22:42:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:42:17,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 366 [2022-11-25 22:42:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:17,468 INFO L225 Difference]: With dead ends: 22519 [2022-11-25 22:42:17,469 INFO L226 Difference]: Without dead ends: 22517 [2022-11-25 22:42:17,482 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 [2022-11-25 22:42:17,483 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:17,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3836 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.4s Time] [2022-11-25 22:42:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22517 states. [2022-11-25 22:42:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22517 to 22511. [2022-11-25 22:42:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22511 states, 13616 states have (on average 1.2907608695652173) internal successors, (17575), 13973 states have internal predecessors, (17575), 7058 states have call successors, (7058), 1843 states have call predecessors, (7058), 1834 states have return successors, (7093), 6968 states have call predecessors, (7093), 7046 states have call successors, (7093) [2022-11-25 22:42:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22511 states to 22511 states and 31726 transitions. [2022-11-25 22:42:19,047 INFO L78 Accepts]: Start accepts. Automaton has 22511 states and 31726 transitions. Word has length 366 [2022-11-25 22:42:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:19,048 INFO L495 AbstractCegarLoop]: Abstraction has 22511 states and 31726 transitions. [2022-11-25 22:42:19,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 22:42:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand 22511 states and 31726 transitions. [2022-11-25 22:42:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-25 22:42:19,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:19,061 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:19,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:42:19,061 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)] === [2022-11-25 22:42:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1636325623, now seen corresponding path program 1 times [2022-11-25 22:42:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528831082] [2022-11-25 22:42:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:19,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3537 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3531 trivial. 0 not checked. [2022-11-25 22:42:21,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:42:21,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528831082] [2022-11-25 22:42:21,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528831082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:21,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:21,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:42:21,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436156858] [2022-11-25 22:42:21,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:21,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:42:21,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:42:21,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:42:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:42:21,961 INFO L87 Difference]: Start difference. First operand 22511 states and 31726 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-25 22:42:24,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:32,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:39,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:41,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:46,709 INFO L93 Difference]: Finished difference Result 22523 states and 31734 transitions. [2022-11-25 22:42:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:42:46,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 368 [2022-11-25 22:42:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:46,838 INFO L225 Difference]: With dead ends: 22523 [2022-11-25 22:42:46,838 INFO L226 Difference]: Without dead ends: 22521 [2022-11-25 22:42:46,855 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 [2022-11-25 22:42:46,856 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:46,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3836 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 23.7s Time] [2022-11-25 22:42:46,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2022-11-25 22:42:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22515. [2022-11-25 22:42:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22515 states, 13619 states have (on average 1.2906968206182539) internal successors, (17578), 13976 states have internal predecessors, (17578), 7058 states have call successors, (7058), 1844 states have call predecessors, (7058), 1835 states have return successors, (7093), 6968 states have call predecessors, (7093), 7046 states have call successors, (7093) [2022-11-25 22:42:48,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22515 states to 22515 states and 31729 transitions. [2022-11-25 22:42:48,568 INFO L78 Accepts]: Start accepts. Automaton has 22515 states and 31729 transitions. Word has length 368 [2022-11-25 22:42:48,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:48,569 INFO L495 AbstractCegarLoop]: Abstraction has 22515 states and 31729 transitions. [2022-11-25 22:42:48,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-25 22:42:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 22515 states and 31729 transitions. [2022-11-25 22:42:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-25 22:42:48,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:48,582 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 4, 4, 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] [2022-11-25 22:42:48,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:42:48,582 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-11-25 22:42:48,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1257786020, now seen corresponding path program 1 times [2022-11-25 22:42:48,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:48,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062712446] [2022-11-25 22:42:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:48,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3513 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3510 trivial. 0 not checked. [2022-11-25 22:42:50,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:42:50,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062712446] [2022-11-25 22:42:50,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062712446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:50,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:50,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:42:50,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869731780] [2022-11-25 22:42:50,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:50,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:42:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:42:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:42:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:50,684 INFO L87 Difference]: Start difference. First operand 22515 states and 31729 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-25 22:42:52,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:04,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:06,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:09,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:43:09,727 INFO L93 Difference]: Finished difference Result 52263 states and 73755 transitions. [2022-11-25 22:43:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:43:09,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 369 [2022-11-25 22:43:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:43:09,972 INFO L225 Difference]: With dead ends: 52263 [2022-11-25 22:43:09,972 INFO L226 Difference]: Without dead ends: 30350 [2022-11-25 22:43:10,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:43:10,066 INFO L413 NwaCegarLoop]: 5721 mSDtfsCounter, 2837 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:43:10,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 9046 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1634 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2022-11-25 22:43:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30350 states. [2022-11-25 22:43:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30350 to 30249. [2022-11-25 22:43:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30249 states, 18391 states have (on average 1.292751889511174) internal successors, (23775), 18859 states have internal predecessors, (23775), 9411 states have call successors, (9411), 2459 states have call predecessors, (9411), 2444 states have return successors, (9451), 9284 states have call predecessors, (9451), 9399 states have call successors, (9451) [2022-11-25 22:43:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30249 states to 30249 states and 42637 transitions. [2022-11-25 22:43:12,032 INFO L78 Accepts]: Start accepts. Automaton has 30249 states and 42637 transitions. Word has length 369 [2022-11-25 22:43:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:43:12,033 INFO L495 AbstractCegarLoop]: Abstraction has 30249 states and 42637 transitions. [2022-11-25 22:43:12,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-25 22:43:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 30249 states and 42637 transitions. [2022-11-25 22:43:12,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-11-25 22:43:12,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:43:12,046 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:43:12,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:43:12,046 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)] === [2022-11-25 22:43:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:43:12,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1541926187, now seen corresponding path program 1 times [2022-11-25 22:43:12,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:43:12,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35567056] [2022-11-25 22:43:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:43:12,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:43:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:43:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3559 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3551 trivial. 0 not checked. [2022-11-25 22:43:14,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:43:14,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35567056] [2022-11-25 22:43:14,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35567056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:43:14,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:43:14,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:43:14,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300013523] [2022-11-25 22:43:14,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:43:14,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:43:14,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:43:14,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:43:14,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:43:14,464 INFO L87 Difference]: Start difference. First operand 30249 states and 42637 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-25 22:43:16,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:30,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:32,604 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 [] [2022-11-25 22:43:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:43:38,522 INFO L93 Difference]: Finished difference Result 30261 states and 42645 transitions. [2022-11-25 22:43:38,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:43:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 377 [2022-11-25 22:43:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:43:38,653 INFO L225 Difference]: With dead ends: 30261 [2022-11-25 22:43:38,653 INFO L226 Difference]: Without dead ends: 30259 [2022-11-25 22:43:38,666 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 [2022-11-25 22:43:38,667 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:43:38,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2022-11-25 22:43:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30259 states. [2022-11-25 22:43:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30259 to 30253. [2022-11-25 22:43:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30253 states, 18394 states have (on average 1.2927041426552137) internal successors, (23778), 18862 states have internal predecessors, (23778), 9411 states have call successors, (9411), 2460 states have call predecessors, (9411), 2445 states have return successors, (9451), 9284 states have call predecessors, (9451), 9399 states have call successors, (9451) [2022-11-25 22:43:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30253 states to 30253 states and 42640 transitions. [2022-11-25 22:43:40,261 INFO L78 Accepts]: Start accepts. Automaton has 30253 states and 42640 transitions. Word has length 377 [2022-11-25 22:43:40,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:43:40,262 INFO L495 AbstractCegarLoop]: Abstraction has 30253 states and 42640 transitions. [2022-11-25 22:43:40,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-25 22:43:40,263 INFO L276 IsEmpty]: Start isEmpty. Operand 30253 states and 42640 transitions. [2022-11-25 22:43:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-25 22:43:40,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:43:40,278 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:43:40,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:43:40,278 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)] === [2022-11-25 22:43:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:43:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1656330938, now seen corresponding path program 1 times [2022-11-25 22:43:40,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:43:40,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747251538] [2022-11-25 22:43:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:43:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:43:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:43:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3567 trivial. 0 not checked. [2022-11-25 22:43:42,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:43:42,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747251538] [2022-11-25 22:43:42,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747251538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:43:42,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:43:42,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:43:42,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078364934] [2022-11-25 22:43:42,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:43:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:43:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:43:42,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:43:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:43:42,668 INFO L87 Difference]: Start difference. First operand 30253 states and 42640 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-25 22:43:44,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:58,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:00,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:06,655 INFO L93 Difference]: Finished difference Result 30265 states and 42648 transitions. [2022-11-25 22:44:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:44:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 382 [2022-11-25 22:44:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:06,758 INFO L225 Difference]: With dead ends: 30265 [2022-11-25 22:44:06,759 INFO L226 Difference]: Without dead ends: 30263 [2022-11-25 22:44:06,769 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 [2022-11-25 22:44:06,769 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:06,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3833 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2022-11-25 22:44:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30263 states. [2022-11-25 22:44:08,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30263 to 30257. [2022-11-25 22:44:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30257 states, 18397 states have (on average 1.2926564113714192) internal successors, (23781), 18865 states have internal predecessors, (23781), 9411 states have call successors, (9411), 2461 states have call predecessors, (9411), 2446 states have return successors, (9451), 9284 states have call predecessors, (9451), 9399 states have call successors, (9451) [2022-11-25 22:44:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30257 states to 30257 states and 42643 transitions. [2022-11-25 22:44:08,294 INFO L78 Accepts]: Start accepts. Automaton has 30257 states and 42643 transitions. Word has length 382 [2022-11-25 22:44:08,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:08,295 INFO L495 AbstractCegarLoop]: Abstraction has 30257 states and 42643 transitions. [2022-11-25 22:44:08,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-25 22:44:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 30257 states and 42643 transitions. [2022-11-25 22:44:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-25 22:44:08,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:08,305 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:44:08,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:44:08,306 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)] === [2022-11-25 22:44:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:08,306 INFO L85 PathProgramCache]: Analyzing trace with hash -943916281, now seen corresponding path program 1 times [2022-11-25 22:44:08,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:44:08,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814666297] [2022-11-25 22:44:08,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:08,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:44:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3598 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3586 trivial. 0 not checked. [2022-11-25 22:44:10,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:44:10,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814666297] [2022-11-25 22:44:10,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814666297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:10,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:10,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:44:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859371891] [2022-11-25 22:44:10,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:10,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:44:10,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:44:10,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:44:10,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:44:10,667 INFO L87 Difference]: Start difference. First operand 30257 states and 42643 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-25 22:44:12,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:27,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:29,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:36,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:36,445 INFO L93 Difference]: Finished difference Result 49367 states and 69694 transitions. [2022-11-25 22:44:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:44:36,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 386 [2022-11-25 22:44:36,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:36,713 INFO L225 Difference]: With dead ends: 49367 [2022-11-25 22:44:36,713 INFO L226 Difference]: Without dead ends: 49365 [2022-11-25 22:44:36,745 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 [2022-11-25 22:44:36,746 INFO L413 NwaCegarLoop]: 4241 mSDtfsCounter, 3817 mSDsluCounter, 11672 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 SdHoareTripleChecker+Valid, 15913 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:36,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 15913 Invalid, 2289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2283 Invalid, 3 Unknown, 0 Unchecked, 24.0s Time] [2022-11-25 22:44:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49365 states. [2022-11-25 22:44:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49365 to 49351. [2022-11-25 22:44:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49351 states, 29995 states have (on average 1.2919819969995) internal successors, (38753), 30735 states have internal predecessors, (38753), 15343 states have call successors, (15343), 4043 states have call predecessors, (15343), 4010 states have return successors, (15583), 15114 states have call predecessors, (15583), 15323 states have call successors, (15583) [2022-11-25 22:44:39,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49351 states to 49351 states and 69679 transitions. [2022-11-25 22:44:39,350 INFO L78 Accepts]: Start accepts. Automaton has 49351 states and 69679 transitions. Word has length 386 [2022-11-25 22:44:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:39,350 INFO L495 AbstractCegarLoop]: Abstraction has 49351 states and 69679 transitions. [2022-11-25 22:44:39,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-25 22:44:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 49351 states and 69679 transitions. [2022-11-25 22:44:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-11-25 22:44:39,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:39,363 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:44:39,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:44:39,364 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)] === [2022-11-25 22:44:39,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:39,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1163328034, now seen corresponding path program 1 times [2022-11-25 22:44:39,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:44:39,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197632466] [2022-11-25 22:44:39,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:44:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3624 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3610 trivial. 0 not checked. [2022-11-25 22:44:42,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:44:42,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197632466] [2022-11-25 22:44:42,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197632466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:42,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:42,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:44:42,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643421435] [2022-11-25 22:44:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:42,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:44:42,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:44:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:44:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:44:42,012 INFO L87 Difference]: Start difference. First operand 49351 states and 69679 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-25 22:44:44,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:58,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:00,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:07,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:45:07,116 INFO L93 Difference]: Finished difference Result 49363 states and 69687 transitions. [2022-11-25 22:45:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:45:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 391 [2022-11-25 22:45:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:45:07,298 INFO L225 Difference]: With dead ends: 49363 [2022-11-25 22:45:07,298 INFO L226 Difference]: Without dead ends: 49361 [2022-11-25 22:45:07,318 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 [2022-11-25 22:45:07,319 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3823 mSDsluCounter, 11753 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 15997 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:45:07,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 15997 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2295 Invalid, 3 Unknown, 0 Unchecked, 23.1s Time] [2022-11-25 22:45:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49361 states. [2022-11-25 22:45:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49361 to 49355. [2022-11-25 22:45:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49355 states, 29998 states have (on average 1.2919527968531235) internal successors, (38756), 30738 states have internal predecessors, (38756), 15343 states have call successors, (15343), 4044 states have call predecessors, (15343), 4011 states have return successors, (15583), 15114 states have call predecessors, (15583), 15323 states have call successors, (15583) [2022-11-25 22:45:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49355 states to 49355 states and 69682 transitions. [2022-11-25 22:45:10,093 INFO L78 Accepts]: Start accepts. Automaton has 49355 states and 69682 transitions. Word has length 391 [2022-11-25 22:45:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:45:10,094 INFO L495 AbstractCegarLoop]: Abstraction has 49355 states and 69682 transitions. [2022-11-25 22:45:10,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-25 22:45:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 49355 states and 69682 transitions. [2022-11-25 22:45:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-11-25 22:45:10,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:45:10,108 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:45:10,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:45:10,109 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)] === [2022-11-25 22:45:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:45:10,109 INFO L85 PathProgramCache]: Analyzing trace with hash -928498788, now seen corresponding path program 1 times [2022-11-25 22:45:10,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:45:10,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747351028] [2022-11-25 22:45:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:45:10,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:45:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3647 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3631 trivial. 0 not checked. [2022-11-25 22:45:12,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:45:12,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747351028] [2022-11-25 22:45:12,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747351028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:12,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:12,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:45:12,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794957218] [2022-11-25 22:45:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:12,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:45:12,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:45:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:45:12,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:45:12,361 INFO L87 Difference]: Start difference. First operand 49355 states and 69682 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-25 22:45:14,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:28,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:30,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:37,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:45:37,692 INFO L93 Difference]: Finished difference Result 49367 states and 69690 transitions. [2022-11-25 22:45:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:45:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 393 [2022-11-25 22:45:37,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:45:37,861 INFO L225 Difference]: With dead ends: 49367 [2022-11-25 22:45:37,861 INFO L226 Difference]: Without dead ends: 49365 [2022-11-25 22:45:37,879 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 [2022-11-25 22:45:37,880 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3824 mSDsluCounter, 11753 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 15997 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:45:37,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 15997 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2295 Invalid, 3 Unknown, 0 Unchecked, 23.4s Time] [2022-11-25 22:45:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49365 states. [2022-11-25 22:45:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49365 to 49359. [2022-11-25 22:45:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49359 states, 30001 states have (on average 1.2919236025465817) internal successors, (38759), 30741 states have internal predecessors, (38759), 15343 states have call successors, (15343), 4045 states have call predecessors, (15343), 4012 states have return successors, (15583), 15114 states have call predecessors, (15583), 15323 states have call successors, (15583) [2022-11-25 22:45:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49359 states to 49359 states and 69685 transitions. [2022-11-25 22:45:40,427 INFO L78 Accepts]: Start accepts. Automaton has 49359 states and 69685 transitions. Word has length 393 [2022-11-25 22:45:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:45:40,428 INFO L495 AbstractCegarLoop]: Abstraction has 49359 states and 69685 transitions. [2022-11-25 22:45:40,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-25 22:45:40,428 INFO L276 IsEmpty]: Start isEmpty. Operand 49359 states and 69685 transitions. [2022-11-25 22:45:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-25 22:45:40,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:45:40,441 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:45:40,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:45:40,442 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)] === [2022-11-25 22:45:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:45:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2098937026, now seen corresponding path program 1 times [2022-11-25 22:45:40,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:45:40,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16104456] [2022-11-25 22:45:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:45:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:45:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3688 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3670 trivial. 0 not checked. [2022-11-25 22:45:42,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:45:42,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16104456] [2022-11-25 22:45:42,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16104456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:42,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:42,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:45:42,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512579708] [2022-11-25 22:45:42,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:42,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:45:42,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:45:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:45:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:45:42,820 INFO L87 Difference]: Start difference. First operand 49359 states and 69685 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:45:44,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:01,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:03,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:08,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:08,991 INFO L93 Difference]: Finished difference Result 83125 states and 117567 transitions. [2022-11-25 22:46:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:46:08,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 401 [2022-11-25 22:46:08,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:09,547 INFO L225 Difference]: With dead ends: 83125 [2022-11-25 22:46:09,547 INFO L226 Difference]: Without dead ends: 83123 [2022-11-25 22:46:09,578 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 [2022-11-25 22:46:09,579 INFO L413 NwaCegarLoop]: 4126 mSDtfsCounter, 3733 mSDsluCounter, 11031 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 15157 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:09,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3739 Valid, 15157 Invalid, 2241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2235 Invalid, 3 Unknown, 0 Unchecked, 23.2s Time] [2022-11-25 22:46:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83123 states. [2022-11-25 22:46:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83123 to 83101. [2022-11-25 22:46:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83101 states, 50620 states have (on average 1.2951797708415647) internal successors, (65562), 51952 states have internal predecessors, (65562), 25589 states have call successors, (25589), 7062 states have call predecessors, (25589), 6889 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-11-25 22:46:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83101 states to 83101 states and 117542 transitions. [2022-11-25 22:46:14,252 INFO L78 Accepts]: Start accepts. Automaton has 83101 states and 117542 transitions. Word has length 401 [2022-11-25 22:46:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:14,252 INFO L495 AbstractCegarLoop]: Abstraction has 83101 states and 117542 transitions. [2022-11-25 22:46:14,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:46:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 83101 states and 117542 transitions. [2022-11-25 22:46:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-11-25 22:46:14,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:14,265 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:46:14,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:46:14,266 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)] === [2022-11-25 22:46:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 402583691, now seen corresponding path program 1 times [2022-11-25 22:46:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:46:14,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472575372] [2022-11-25 22:46:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:46:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3727 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3707 trivial. 0 not checked. [2022-11-25 22:46:16,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:46:16,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472575372] [2022-11-25 22:46:16,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472575372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:16,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:46:16,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:46:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385700138] [2022-11-25 22:46:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:16,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:46:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:46:16,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:46:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:46:16,651 INFO L87 Difference]: Start difference. First operand 83101 states and 117542 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-25 22:46:18,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:35,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:37,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:44,905 INFO L93 Difference]: Finished difference Result 83113 states and 117550 transitions. [2022-11-25 22:46:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:46:44,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 407 [2022-11-25 22:46:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:45,420 INFO L225 Difference]: With dead ends: 83113 [2022-11-25 22:46:45,420 INFO L226 Difference]: Without dead ends: 83111 [2022-11-25 22:46:45,450 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 [2022-11-25 22:46:45,451 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3828 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:45,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3828 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 25.0s Time] [2022-11-25 22:46:45,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83111 states. [2022-11-25 22:46:49,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83111 to 83105. [2022-11-25 22:46:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83105 states, 50623 states have (on average 1.2951622780159215) internal successors, (65565), 51955 states have internal predecessors, (65565), 25589 states have call successors, (25589), 7063 states have call predecessors, (25589), 6890 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-11-25 22:46:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83105 states to 83105 states and 117545 transitions. [2022-11-25 22:46:50,186 INFO L78 Accepts]: Start accepts. Automaton has 83105 states and 117545 transitions. Word has length 407 [2022-11-25 22:46:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:50,186 INFO L495 AbstractCegarLoop]: Abstraction has 83105 states and 117545 transitions. [2022-11-25 22:46:50,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-25 22:46:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 83105 states and 117545 transitions. [2022-11-25 22:46:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-11-25 22:46:50,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:50,195 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 12, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:46:50,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:46:50,195 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)] === [2022-11-25 22:46:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash 21898633, now seen corresponding path program 1 times [2022-11-25 22:46:50,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:46:50,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167345342] [2022-11-25 22:46:50,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:50,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:46:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3761 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3739 trivial. 0 not checked. [2022-11-25 22:46:52,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:46:52,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167345342] [2022-11-25 22:46:52,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167345342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:52,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:46:52,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:46:52,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132580923] [2022-11-25 22:46:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:52,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:46:52,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:46:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:46:52,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:46:52,654 INFO L87 Difference]: Start difference. First operand 83105 states and 117545 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:46:54,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:10,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:12,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:47:20,194 INFO L93 Difference]: Finished difference Result 83117 states and 117553 transitions. [2022-11-25 22:47:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:47:20,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 408 [2022-11-25 22:47:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:47:20,808 INFO L225 Difference]: With dead ends: 83117 [2022-11-25 22:47:20,808 INFO L226 Difference]: Without dead ends: 83115 [2022-11-25 22:47:20,839 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 [2022-11-25 22:47:20,839 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3828 SdHoareTripleChecker+Valid, 16045 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:47:20,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3828 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 24.1s Time] [2022-11-25 22:47:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83115 states. [2022-11-25 22:47:25,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83115 to 83109. [2022-11-25 22:47:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83109 states, 50626 states have (on average 1.2951447872634614) internal successors, (65568), 51958 states have internal predecessors, (65568), 25589 states have call successors, (25589), 7064 states have call predecessors, (25589), 6891 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-11-25 22:47:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83109 states to 83109 states and 117548 transitions. [2022-11-25 22:47:25,937 INFO L78 Accepts]: Start accepts. Automaton has 83109 states and 117548 transitions. Word has length 408 [2022-11-25 22:47:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:47:25,938 INFO L495 AbstractCegarLoop]: Abstraction has 83109 states and 117548 transitions. [2022-11-25 22:47:25,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-25 22:47:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 83109 states and 117548 transitions. [2022-11-25 22:47:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-11-25 22:47:25,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:47:25,951 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:47:25,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:47:25,952 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-11-25 22:47:25,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:47:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 982279527, now seen corresponding path program 1 times [2022-11-25 22:47:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:47:25,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154628236] [2022-11-25 22:47:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:47:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:47:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:47:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3814 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3790 trivial. 0 not checked. [2022-11-25 22:47:28,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:47:28,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154628236] [2022-11-25 22:47:28,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154628236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:47:28,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:47:28,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:47:28,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686832425] [2022-11-25 22:47:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:47:28,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:47:28,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:47:28,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:47:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:47:28,103 INFO L87 Difference]: Start difference. First operand 83109 states and 117548 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-25 22:47:30,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:45,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:47,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []