./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 10:24:02,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:24:02,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:24:02,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:24:02,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:24:02,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:24:02,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:24:02,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:24:02,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:24:02,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:24:02,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:24:02,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:24:02,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:24:02,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:24:02,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:24:02,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:24:02,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:24:02,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:24:02,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:24:02,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:24:02,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:24:02,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:24:02,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:24:02,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:24:02,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:24:02,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:24:02,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:24:02,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:24:02,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:24:02,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:24:02,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:24:02,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:24:02,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:24:02,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:24:02,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:24:02,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:24:02,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:24:02,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:24:02,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:24:02,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:24:02,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:24:02,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:24:02,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:24:02,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:24:02,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:24:02,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:24:02,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:24:02,950 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:24:02,950 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:24:02,951 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:24:02,951 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:24:02,951 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:24:02,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:24:02,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:24:02,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:24:02,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:02,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:24:02,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:24:02,953 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_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ff699a14ff18600b4164aac890b6c04e9203457f89a66ec1bef9ac9dce5edac [2022-12-14 10:24:03,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:24:03,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:24:03,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:24:03,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:24:03,156 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:24:03,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-12-14 10:24:05,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:24:06,167 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:24:06,167 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-12-14 10:24:06,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/data/a5a95b82c/7505f0f5b12040d4be95878f78310c2c/FLAG3d3955afd [2022-12-14 10:24:06,212 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/data/a5a95b82c/7505f0f5b12040d4be95878f78310c2c [2022-12-14 10:24:06,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:24:06,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:24:06,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:06,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:24:06,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:24:06,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:06" (1/1) ... [2022-12-14 10:24:06,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d307c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:06, skipping insertion in model container [2022-12-14 10:24:06,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:06" (1/1) ... [2022-12-14 10:24:06,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:24:06,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:24:06,790 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:06,793 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:07,002 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-12-14 10:24:07,010 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-12-14 10:24:07,326 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:07,327 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:07,327 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:07,340 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:07,342 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:24:07,345 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:07,345 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:24:07,348 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:07,350 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:07,352 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:07,353 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:07,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:07,409 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 10:24:07,410 WARN L623 FunctionHandler]: Unknown extern function dev_open [2022-12-14 10:24:07,411 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-14 10:24:07,510 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 10:24:07,593 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-12-14 10:24:07,724 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:07,734 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 10:24:07,744 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 10:24:07,776 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 10:24:07,785 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 10:24:07,800 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 10:24:07,810 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 10:24:07,883 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 10:24:07,898 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 10:24:07,976 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:08,058 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:24:08,060 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:24:08,060 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 10:24:08,067 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 10:24:08,072 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 10:24:08,078 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 10:24:08,083 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 10:24:08,113 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 10:24:08,121 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,121 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 10:24:08,129 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 10:24:08,136 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 10:24:08,212 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 10:24:08,238 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-12-14 10:24:08,306 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 10:24:08,326 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 10:24:08,326 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:08,383 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:08,384 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:24:08,394 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,415 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:08,425 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:08,425 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:24:08,448 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 10:24:08,453 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 10:24:08,503 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:08,504 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:08,504 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:08,504 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:08,504 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 10:24:08,650 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 10:24:08,677 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 10:24:08,709 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:24:08,715 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,720 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,731 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,736 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:08,793 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-12-14 10:24:08,794 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 10:24:08,799 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 10:24:08,810 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:08,810 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:08,822 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:24:08,823 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:08,823 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 10:24:08,831 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 10:24:08,907 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 10:24:08,919 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:08,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,945 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:08,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,950 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:08,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,977 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 10:24:08,978 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-12-14 10:24:08,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,983 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:08,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:08,998 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:09,037 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:09,053 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:09,053 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:09,054 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:09,054 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:09,055 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:09,060 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msix [2022-12-14 10:24:09,061 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,061 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,072 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,073 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,079 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-12-14 10:24:09,079 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-12-14 10:24:09,085 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 10:24:09,085 WARN L623 FunctionHandler]: Unknown extern function napi_hash_add [2022-12-14 10:24:09,085 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-12-14 10:24:09,085 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-12-14 10:24:09,085 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,091 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-12-14 10:24:09,091 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-12-14 10:24:09,091 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,096 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msix [2022-12-14 10:24:09,096 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,102 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,107 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,108 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:09,113 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:24:09,114 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,114 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,115 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,115 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,115 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,135 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:09,136 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,136 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 10:24:09,137 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:09,137 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:09,137 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 10:24:09,138 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:09,143 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-12-14 10:24:09,144 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:09,150 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-12-14 10:24:09,150 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:09,151 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,156 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:09,162 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,180 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 10:24:09,181 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 10:24:09,187 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:24:09,188 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 10:24:09,188 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:24:09,189 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 10:24:09,207 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,224 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:09,225 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:09,252 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 10:24:09,253 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 10:24:09,253 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 10:24:09,253 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:09,253 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:09,258 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:09,259 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 10:24:09,260 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 10:24:09,260 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,260 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 10:24:09,282 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 10:24:09,283 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,283 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 10:24:09,283 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,283 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:09,284 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:09,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,285 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:24:09,286 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 10:24:09,286 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 10:24:09,286 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 10:24:09,286 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 10:24:09,287 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:09,287 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 10:24:09,287 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:24:09,287 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:09,293 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 10:24:09,293 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 10:24:09,293 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 10:24:09,294 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:24:09,294 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:09,299 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 10:24:09,299 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:09,305 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 10:24:09,305 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:09,305 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:09,311 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 10:24:09,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:09,601 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,601 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,601 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,601 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,602 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,603 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:09,606 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 10:24:09,608 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:24:09,610 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:09,610 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:09,611 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:09,611 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:09,617 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:24:09,618 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 10:24:09,624 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:09,625 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:09,626 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:09,627 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:09,627 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:09,627 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:09,628 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:09,628 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:24:09,628 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-12-14 10:24:09,628 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:09,629 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 10:24:09,629 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 10:24:09,629 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:24:09,629 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:24:09,629 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-12-14 10:24:09,630 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 10:24:09,630 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:24:09,630 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 10:24:09,630 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 10:24:09,681 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 10:24:09,681 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:24:09,691 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:24:10,391 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,393 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,394 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,394 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,414 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,417 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:10,475 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:24:10,572 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:10,577 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:10,638 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-12-14 10:24:10,641 WARN L623 FunctionHandler]: Unknown extern function __udelay [2022-12-14 10:24:10,663 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:10,664 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:10,664 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:24:10,665 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:10,673 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:24:10,674 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,675 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:24:10,676 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,677 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,679 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,679 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,696 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-12-14 10:24:10,697 WARN L623 FunctionHandler]: Unknown extern function dev_open [2022-12-14 10:24:10,697 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-14 10:24:10,702 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 10:24:10,704 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-12-14 10:24:10,705 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:10,706 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 10:24:10,706 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 10:24:10,706 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 10:24:10,707 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 10:24:10,707 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 10:24:10,707 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 10:24:10,708 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 10:24:10,708 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 10:24:10,709 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,713 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:24:10,713 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:24:10,714 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 10:24:10,715 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 10:24:10,716 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 10:24:10,716 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 10:24:10,717 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 10:24:10,719 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 10:24:10,720 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,720 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 10:24:10,721 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 10:24:10,721 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 10:24:10,723 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 10:24:10,725 WARN L623 FunctionHandler]: Unknown extern function skb_copy_bits [2022-12-14 10:24:10,726 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 10:24:10,726 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 10:24:10,727 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:10,728 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:10,729 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:24:10,729 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,731 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:10,731 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:24:10,732 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:24:10,732 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 10:24:10,732 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 10:24:10,733 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:10,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:10,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:10,734 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:24:10,735 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 10:24:10,738 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 10:24:10,739 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 10:24:10,740 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:24:10,741 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,742 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,743 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,744 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,758 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-12-14 10:24:10,759 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 10:24:10,759 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 10:24:10,761 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:10,761 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,763 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:24:10,764 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:10,765 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 10:24:10,775 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 10:24:10,798 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 10:24:10,800 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:10,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,803 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:10,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,804 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:10,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,821 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 10:24:10,822 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-12-14 10:24:10,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,826 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:24:10,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,834 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 10:24:10,847 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:10,849 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:10,849 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:10,850 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:10,851 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:24:10,851 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:24:10,858 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msix [2022-12-14 10:24:10,858 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,859 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,861 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,861 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,862 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-12-14 10:24:10,863 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-12-14 10:24:10,865 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 10:24:10,866 WARN L623 FunctionHandler]: Unknown extern function napi_hash_add [2022-12-14 10:24:10,866 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-12-14 10:24:10,866 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-12-14 10:24:10,866 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,867 WARN L623 FunctionHandler]: Unknown extern function napi_hash_del [2022-12-14 10:24:10,867 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-12-14 10:24:10,867 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,867 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msix [2022-12-14 10:24:10,867 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,868 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,868 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:24:10,871 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:24:10,873 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,877 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,878 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,878 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,885 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:10,886 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,886 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 10:24:10,886 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 10:24:10,886 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:10,887 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 10:24:10,887 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,888 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-12-14 10:24:10,888 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,889 WARN L623 FunctionHandler]: Unknown extern function vzalloc [2022-12-14 10:24:10,890 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,890 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,891 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:24:10,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,894 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 10:24:10,895 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 10:24:10,896 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:24:10,897 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 10:24:10,897 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:24:10,897 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 10:24:10,901 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,902 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:10,903 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:24:10,907 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 10:24:10,907 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 10:24:10,907 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 10:24:10,907 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:10,908 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:10,908 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 10:24:10,908 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 10:24:10,908 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:10,908 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 10:24:10,909 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,909 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:10,909 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 10:24:10,909 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 10:24:10,909 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,910 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 10:24:10,912 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 10:24:10,912 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,913 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 10:24:10,913 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,913 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:10,914 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 10:24:10,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,916 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:24:10,916 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 10:24:10,916 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 10:24:10,916 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 10:24:10,917 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 10:24:10,917 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:24:10,917 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 10:24:10,918 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:24:10,918 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:10,918 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 10:24:10,918 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 10:24:10,919 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 10:24:10,919 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:24:10,919 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:10,919 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 10:24:10,919 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:24:10,920 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-12-14 10:24:10,920 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 10:24:10,920 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:24:10,921 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 10:24:10,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:24:10,924 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,924 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,925 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,926 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,927 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,929 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 10:24:10,943 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:24:10,944 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:10,944 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:10,945 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:10,945 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:10,950 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:24:10,951 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 10:24:10,957 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:24:10,958 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:24:10,960 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:10,960 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:10,960 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:10,961 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:24:10,961 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:10,961 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:24:10,961 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-12-14 10:24:10,962 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:24:10,962 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 10:24:10,962 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 10:24:10,962 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:24:10,963 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:24:10,963 WARN L623 FunctionHandler]: Unknown extern function ldv_del_timer_sync [2022-12-14 10:24:10,963 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 10:24:10,963 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:24:10,963 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 10:24:10,964 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 10:24:10,966 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 10:24:10,966 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:24:10,966 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:24:10,981 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,981 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,982 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,982 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_ad698cc1-3c90-4619-9368-0786db2b97f9/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] [2022-12-14 10:24:10,983 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,984 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,985 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,986 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,989 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,989 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:24:10,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:11,275 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:24:11,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11 WrapperNode [2022-12-14 10:24:11,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:11,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:11,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:24:11,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:24:11,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,556 INFO L138 Inliner]: procedures = 740, calls = 4348, calls flagged for inlining = 368, calls inlined = 334, statements flattened = 9916 [2022-12-14 10:24:11,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:11,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:24:11,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:24:11,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:24:11,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:24:11,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:24:11,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:24:11,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:24:11,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (1/1) ... [2022-12-14 10:24:11,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:11,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:24:11,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:24:11,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad698cc1-3c90-4619-9368-0786db2b97f9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:24:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-12-14 10:24:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-12-14 10:24:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 10:24:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 10:24:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 10:24:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 10:24:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-12-14 10:24:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-12-14 10:24:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_irq [2022-12-14 10:24:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_irq [2022-12-14 10:24:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_rx_resources [2022-12-14 10:24:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_rx_resources [2022-12-14 10:24:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:24:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:24:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_ctxtdesc [2022-12-14 10:24:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_ctxtdesc [2022-12-14 10:24:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_pointer [2022-12-14 10:24:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_pointer [2022-12-14 10:24:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 10:24:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 10:24:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_eitr [2022-12-14 10:24:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_eitr [2022-12-14 10:24:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-12-14 10:24:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-12-14 10:24:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 10:24:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 10:24:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_uc_addr_vf [2022-12-14 10:24:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_uc_addr_vf [2022-12-14 10:24:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-12-14 10:24:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-12-14 10:24:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 10:24:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 10:24:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 10:24:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 10:24:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2022-12-14 10:24:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~bool~0~TO~~s32~0 [2022-12-14 10:24:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 10:24:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 10:24:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_desc_unused [2022-12-14 10:24:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_desc_unused [2022-12-14 10:24:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_ack [2022-12-14 10:24:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_ack [2022-12-14 10:24:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_setup_tx_resources [2022-12-14 10:24:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_setup_tx_resources [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_remove [2022-12-14 10:24:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_remove [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 10:24:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 10:24:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 10:24:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 10:24:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 10:24:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 10:24:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 10:24:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-12-14 10:24:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 10:24:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_resume [2022-12-14 10:24:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_resume [2022-12-14 10:24:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-12-14 10:24:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-12-14 10:24:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-12-14 10:24:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-12-14 10:24:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 10:24:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 10:24:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_mbx_vf [2022-12-14 10:24:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_mbx_vf [2022-12-14 10:24:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_posted_mbx [2022-12-14 10:24:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_posted_mbx [2022-12-14 10:24:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_mbx_vf [2022-12-14 10:24:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_mbx_vf [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 10:24:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-12-14 10:24:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reinit_locked [2022-12-14 10:24:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reinit_locked [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up [2022-12-14 10:24:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up [2022-12-14 10:24:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-12-14 10:24:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-12-14 10:24:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 10:24:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 10:24:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 10:24:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 10:24:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_irq [2022-12-14 10:24:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_irq [2022-12-14 10:24:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rar_vf [2022-12-14 10:24:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rar_vf [2022-12-14 10:24:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 10:24:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_78 [2022-12-14 10:24:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_78 [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header_len [2022-12-14 10:24:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header_len [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 10:24:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_vfta_vf [2022-12-14 10:24:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_vfta_vf [2022-12-14 10:24:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_down [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_down [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_txq [2022-12-14 10:24:11,994 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_txq [2022-12-14 10:24:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_rx_resources [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_rx_resources [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_94 [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_94 [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_tx_timeout [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_tx_timeout [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 10:24:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-12-14 10:24:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_negotiate_api [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_negotiate_api [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_alloc_rx_buffers [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_alloc_rx_buffers [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 10:24:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 10:24:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_interrupt_scheme [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_interrupt_scheme [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_tx_resources [2022-12-14 10:24:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_tx_resources [2022-12-14 10:24:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_hw_vf [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_hw_vf [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_maybe_stop_tx [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_maybe_stop_tx [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_msg_vf [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_msg_vf [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_busy_poll_recv [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_busy_poll_recv [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_posted_mbx [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_posted_mbx [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2022-12-14 10:24:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~TO~~s32~0 [2022-12-14 10:24:11,998 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~s32~0 [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_last_counter_stats [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_last_counter_stats [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_io_resume [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_io_resume [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 10:24:11,999 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_up_complete [2022-12-14 10:24:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_up_complete [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_ivar [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_ivar [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_bit_vf [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_bit_vf [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_shutdown [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_shutdown [2022-12-14 10:24:12,000 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_interrupt_capability [2022-12-14 10:24:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_interrupt_capability [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_nway_reset [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_nway_reset [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_obtain_mbx_lock_vf [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_obtain_mbx_lock_vf [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_tx_ring [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_tx_ring [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_rst_vf [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_rst_vf [2022-12-14 10:24:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_read_v2p_mailbox [2022-12-14 10:24:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_read_v2p_mailbox [2022-12-14 10:24:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 10:24:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 10:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_for_ack_vf [2022-12-14 10:24:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_for_ack_vf [2022-12-14 10:24:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_stats [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_stats [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_irq_enable [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_irq_enable [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-12-14 10:24:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 10:24:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_start_hw_vf [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_start_hw_vf [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure napi_hash_del [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_hash_del [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2022-12-14 10:24:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2022-12-14 10:24:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_set_rx_mode [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_set_rx_mode [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~~u32~0~TO~~s32~0 [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_poll_for_msg [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_poll_for_msg [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_suspend [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_suspend [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 10:24:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:24:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_link_test [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_link_test [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_vlan_rx_add_vid [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_vlan_rx_add_vid [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure map_vector_to_rxq [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure map_vector_to_rxq [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~~bool~0~TO~~s32~0 [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_mac_addr_vf [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_mac_addr_vf [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_configure [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_configure [2022-12-14 10:24:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_all_tx_resources [2022-12-14 10:24:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_all_tx_resources [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_queues [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_queues [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_write_msg_read_ack [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_write_msg_read_ack [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_open [2022-12-14 10:24:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_open [2022-12-14 10:24:12,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_93 [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_93 [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ixgbevf_exit_module_17_2 [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_check_mac_link_vf [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_check_mac_link_vf [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clear_interrupt_scheme [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clear_interrupt_scheme [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_get_regs_len [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_get_regs_len [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_update_mc_addr_list_vf [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_update_mc_addr_list_vf [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_rx_resources [2022-12-14 10:24:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_rx_resources [2022-12-14 10:24:12,031 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_77 [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_77 [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_init_mbx_params_vf [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_init_mbx_params_vf [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_free_q_vectors [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_free_q_vectors [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_disable_rx_queue [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_disable_rx_queue [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_close [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_close [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 10:24:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 10:24:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 10:24:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 10:24:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_clean_rx_ring [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_clean_rx_ring [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_stop_hw_vf [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_stop_hw_vf [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_reset_hw_vf [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_reset_hw_vf [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ixgbevf_unmap_and_free_tx_resource [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgbevf_unmap_and_free_tx_resource [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 10:24:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-12-14 10:24:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-12-14 10:24:12,887 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:24:12,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:24:13,019 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 10:27:02,761 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 10:27:02,896 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:27:06,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:27:06,702 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-12-14 10:27:06,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:06 BoogieIcfgContainer [2022-12-14 10:27:06,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:27:06,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:27:06,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:27:06,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:27:06,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:24:06" (1/3) ... [2022-12-14 10:27:06,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a190ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:06, skipping insertion in model container [2022-12-14 10:27:06,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:11" (2/3) ... [2022-12-14 10:27:06,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a190ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:06, skipping insertion in model container [2022-12-14 10:27:06,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:06" (3/3) ... [2022-12-14 10:27:06,715 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-ixgbevf-ixgbevf.cil.i [2022-12-14 10:27:06,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:27:06,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 10:27:06,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:27:06,846 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;@48245ce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:27:06,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 10:27:06,861 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) [2022-12-14 10:27:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-12-14 10:27:06,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:06,892 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] [2022-12-14 10:27:06,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:27:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1541431986, now seen corresponding path program 1 times [2022-12-14 10:27:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:06,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802856050] [2022-12-14 10:27:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-12-14 10:27:08,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:08,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802856050] [2022-12-14 10:27:08,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802856050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:08,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:08,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:27:08,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805284703] [2022-12-14 10:27:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:08,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:08,534 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) [2022-12-14 10:27:10,665 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 [] [2022-12-14 10:27:15,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:17,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:21,937 INFO L93 Difference]: Finished difference Result 8133 states and 11773 transitions. [2022-12-14 10:27:21,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:21,939 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 [2022-12-14 10:27:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:21,988 INFO L225 Difference]: With dead ends: 8133 [2022-12-14 10:27:21,988 INFO L226 Difference]: Without dead ends: 5399 [2022-12-14 10:27:22,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:22,014 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 3761 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s 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, 13.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:22,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3761 Valid, 7597 Invalid, 1164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1154 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2022-12-14 10:27:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5399 states. [2022-12-14 10:27:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 5395. [2022-12-14 10:27:22,355 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) [2022-12-14 10:27:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 7680 transitions. [2022-12-14 10:27:22,391 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 7680 transitions. Word has length 311 [2022-12-14 10:27:22,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:22,392 INFO L495 AbstractCegarLoop]: Abstraction has 5395 states and 7680 transitions. [2022-12-14 10:27:22,393 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) [2022-12-14 10:27:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 7680 transitions. [2022-12-14 10:27:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-12-14 10:27:22,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:22,402 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] [2022-12-14 10:27:22,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:27:22,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:27:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash 539889921, now seen corresponding path program 1 times [2022-12-14 10:27:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:22,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511516448] [2022-12-14 10:27:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-12-14 10:27:23,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:23,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511516448] [2022-12-14 10:27:23,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511516448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:23,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:23,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:27:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467185407] [2022-12-14 10:27:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:23,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:23,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:23,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:23,554 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) [2022-12-14 10:27:25,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:29,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:31,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:37,894 INFO L93 Difference]: Finished difference Result 12073 states and 17186 transitions. [2022-12-14 10:27:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:37,894 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 [2022-12-14 10:27:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:37,954 INFO L225 Difference]: With dead ends: 12073 [2022-12-14 10:27:37,954 INFO L226 Difference]: Without dead ends: 6737 [2022-12-14 10:27:37,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:37,980 INFO L413 NwaCegarLoop]: 4323 mSDtfsCounter, 2843 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 7650 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:37,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7650 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1266 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-12-14 10:27:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2022-12-14 10:27:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 6708. [2022-12-14 10:27:38,243 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) [2022-12-14 10:27:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6708 states to 6708 states and 9521 transitions. [2022-12-14 10:27:38,265 INFO L78 Accepts]: Start accepts. Automaton has 6708 states and 9521 transitions. Word has length 322 [2022-12-14 10:27:38,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:38,266 INFO L495 AbstractCegarLoop]: Abstraction has 6708 states and 9521 transitions. [2022-12-14 10:27:38,266 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) [2022-12-14 10:27:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6708 states and 9521 transitions. [2022-12-14 10:27:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-12-14 10:27:38,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:38,271 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] [2022-12-14 10:27:38,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:27:38,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:27:38,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -136770670, now seen corresponding path program 1 times [2022-12-14 10:27:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:38,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987231216] [2022-12-14 10:27:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:38,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-12-14 10:27:39,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:39,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987231216] [2022-12-14 10:27:39,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987231216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:39,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:39,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:27:39,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887179857] [2022-12-14 10:27:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:39,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:39,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:39,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:39,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:39,038 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) [2022-12-14 10:27:41,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:48,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:50,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:52,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:52,750 INFO L93 Difference]: Finished difference Result 14575 states and 20609 transitions. [2022-12-14 10:27:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:52,750 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 [2022-12-14 10:27:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:52,783 INFO L225 Difference]: With dead ends: 14575 [2022-12-14 10:27:52,784 INFO L226 Difference]: Without dead ends: 7926 [2022-12-14 10:27:52,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:52,800 INFO L413 NwaCegarLoop]: 4030 mSDtfsCounter, 2806 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s 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, 13.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:52,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 7357 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1188 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-12-14 10:27:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7926 states. [2022-12-14 10:27:53,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7926 to 7895. [2022-12-14 10:27:53,040 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) [2022-12-14 10:27:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 11118 transitions. [2022-12-14 10:27:53,063 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 11118 transitions. Word has length 328 [2022-12-14 10:27:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:53,064 INFO L495 AbstractCegarLoop]: Abstraction has 7895 states and 11118 transitions. [2022-12-14 10:27:53,064 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) [2022-12-14 10:27:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 11118 transitions. [2022-12-14 10:27:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-12-14 10:27:53,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:53,069 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] [2022-12-14 10:27:53,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:27:53,070 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)] === [2022-12-14 10:27:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 869661073, now seen corresponding path program 1 times [2022-12-14 10:27:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405787196] [2022-12-14 10:27:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3519 trivial. 0 not checked. [2022-12-14 10:27:54,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:54,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405787196] [2022-12-14 10:27:54,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405787196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:54,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:54,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:27:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646766533] [2022-12-14 10:27:54,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:54,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:27:54,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:54,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:27:54,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:27:54,812 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) [2022-12-14 10:27:56,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:08,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:10,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:28:15,376 INFO L93 Difference]: Finished difference Result 15165 states and 21398 transitions. [2022-12-14 10:28:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:28:15,377 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 [2022-12-14 10:28:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:28:15,467 INFO L225 Difference]: With dead ends: 15165 [2022-12-14 10:28:15,467 INFO L226 Difference]: Without dead ends: 15163 [2022-12-14 10:28:15,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:28:15,475 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 3841 mSDsluCounter, 11795 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s 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, 19.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:28:15,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 16057 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2294 Invalid, 3 Unknown, 0 Unchecked, 19.9s Time] [2022-12-14 10:28:15,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15163 states. [2022-12-14 10:28:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15163 to 15154. [2022-12-14 10:28:15,905 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) [2022-12-14 10:28:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15154 states to 15154 states and 21390 transitions. [2022-12-14 10:28:15,953 INFO L78 Accepts]: Start accepts. Automaton has 15154 states and 21390 transitions. Word has length 353 [2022-12-14 10:28:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:28:15,953 INFO L495 AbstractCegarLoop]: Abstraction has 15154 states and 21390 transitions. [2022-12-14 10:28:15,953 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) [2022-12-14 10:28:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand 15154 states and 21390 transitions. [2022-12-14 10:28:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-12-14 10:28:15,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:28:15,959 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:28:15,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:28:15,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:28:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:28:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2001534740, now seen corresponding path program 1 times [2022-12-14 10:28:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:28:15,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946537589] [2022-12-14 10:28:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:28:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:28:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:28:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3521 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3519 trivial. 0 not checked. [2022-12-14 10:28:17,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:28:17,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946537589] [2022-12-14 10:28:17,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946537589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:28:17,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:28:17,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:28:17,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648818254] [2022-12-14 10:28:17,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:28:17,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:28:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:28:17,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:28:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:28:17,290 INFO L87 Difference]: Start difference. First operand 15154 states and 21390 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, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 10:28:19,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:31,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:33,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:38,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:28:38,084 INFO L93 Difference]: Finished difference Result 22515 states and 31728 transitions. [2022-12-14 10:28:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:28:38,085 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, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 358 [2022-12-14 10:28:38,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:28:38,146 INFO L225 Difference]: With dead ends: 22515 [2022-12-14 10:28:38,146 INFO L226 Difference]: Without dead ends: 22513 [2022-12-14 10:28:38,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:28:38,155 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3838 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, 20.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:28:38,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3838 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2022-12-14 10:28:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22513 states. [2022-12-14 10:28:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22513 to 22507. [2022-12-14 10:28:38,830 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) [2022-12-14 10:28:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22507 states to 22507 states and 31723 transitions. [2022-12-14 10:28:38,916 INFO L78 Accepts]: Start accepts. Automaton has 22507 states and 31723 transitions. Word has length 358 [2022-12-14 10:28:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:28:38,917 INFO L495 AbstractCegarLoop]: Abstraction has 22507 states and 31723 transitions. [2022-12-14 10:28:38,917 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, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 10:28:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 22507 states and 31723 transitions. [2022-12-14 10:28:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-12-14 10:28:38,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:28:38,922 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:28:38,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:28:38,923 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:28:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:28:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 773393201, now seen corresponding path program 1 times [2022-12-14 10:28:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:28:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672555605] [2022-12-14 10:28:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:28:38,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:28:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:28:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3527 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3523 trivial. 0 not checked. [2022-12-14 10:28:40,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:28:40,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672555605] [2022-12-14 10:28:40,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672555605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:28:40,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:28:40,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:28:40,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891158676] [2022-12-14 10:28:40,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:28:40,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:28:40,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:28:40,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:28:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:28:40,151 INFO L87 Difference]: Start difference. First operand 22507 states and 31723 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 10:28:42,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:54,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:28:56,589 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 [] [2022-12-14 10:29:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:29:01,488 INFO L93 Difference]: Finished difference Result 22519 states and 31731 transitions. [2022-12-14 10:29:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:29:01,489 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 363 [2022-12-14 10:29:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:29:01,567 INFO L225 Difference]: With dead ends: 22519 [2022-12-14 10:29:01,567 INFO L226 Difference]: Without dead ends: 22517 [2022-12-14 10:29:01,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:29:01,581 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s 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, 20.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:29:01,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time] [2022-12-14 10:29:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22517 states. [2022-12-14 10:29:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22517 to 22511. [2022-12-14 10:29:02,235 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) [2022-12-14 10:29:02,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22511 states to 22511 states and 31726 transitions. [2022-12-14 10:29:02,299 INFO L78 Accepts]: Start accepts. Automaton has 22511 states and 31726 transitions. Word has length 363 [2022-12-14 10:29:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:29:02,299 INFO L495 AbstractCegarLoop]: Abstraction has 22511 states and 31726 transitions. [2022-12-14 10:29:02,299 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 10:29:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 22511 states and 31726 transitions. [2022-12-14 10:29:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-12-14 10:29:02,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:29:02,304 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 5, 5, 4, 3, 3, 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] [2022-12-14 10:29:02,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:29:02,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:29:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:29:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash -830452268, now seen corresponding path program 1 times [2022-12-14 10:29:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:29:02,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784994921] [2022-12-14 10:29:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:29:02,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:29:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:29:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3544 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3538 trivial. 0 not checked. [2022-12-14 10:29:03,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:29:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784994921] [2022-12-14 10:29:03,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784994921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:29:03,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:29:03,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:29:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355613210] [2022-12-14 10:29:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:29:03,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:29:03,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:29:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:29:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:29:03,636 INFO L87 Difference]: Start difference. First operand 22511 states and 31726 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, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 10:29:05,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:18,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:20,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:29:25,263 INFO L93 Difference]: Finished difference Result 22523 states and 31734 transitions. [2022-12-14 10:29:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:29:25,264 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, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 371 [2022-12-14 10:29:25,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:29:25,339 INFO L225 Difference]: With dead ends: 22523 [2022-12-14 10:29:25,339 INFO L226 Difference]: Without dead ends: 22521 [2022-12-14 10:29:25,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:29:25,353 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 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, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:29:25,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 10:29:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2022-12-14 10:29:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22515. [2022-12-14 10:29:26,057 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) [2022-12-14 10:29:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22515 states to 22515 states and 31729 transitions. [2022-12-14 10:29:26,121 INFO L78 Accepts]: Start accepts. Automaton has 22515 states and 31729 transitions. Word has length 371 [2022-12-14 10:29:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:29:26,121 INFO L495 AbstractCegarLoop]: Abstraction has 22515 states and 31729 transitions. [2022-12-14 10:29:26,121 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, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 10:29:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22515 states and 31729 transitions. [2022-12-14 10:29:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 10:29:26,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:29:26,126 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] [2022-12-14 10:29:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:29:26,126 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)] === [2022-12-14 10:29:26,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:29:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1839941556, now seen corresponding path program 1 times [2022-12-14 10:29:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:29:26,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763837734] [2022-12-14 10:29:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:29:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:29:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:29:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3513 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3510 trivial. 0 not checked. [2022-12-14 10:29:26,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:29:26,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763837734] [2022-12-14 10:29:26,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763837734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:29:26,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:29:26,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:29:26,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226905070] [2022-12-14 10:29:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:29:26,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:29:26,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:29:26,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:29:26,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:29:26,966 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) [2022-12-14 10:29:29,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:40,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:42,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:29:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:29:45,095 INFO L93 Difference]: Finished difference Result 52263 states and 73755 transitions. [2022-12-14 10:29:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:29:45,096 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 [2022-12-14 10:29:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:29:45,200 INFO L225 Difference]: With dead ends: 52263 [2022-12-14 10:29:45,200 INFO L226 Difference]: Without dead ends: 30350 [2022-12-14 10:29:45,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:29:45,324 INFO L413 NwaCegarLoop]: 5721 mSDtfsCounter, 2837 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s 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, 17.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:29:45,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 9046 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1634 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-12-14 10:29:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30350 states. [2022-12-14 10:29:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30350 to 30249. [2022-12-14 10:29:46,183 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) [2022-12-14 10:29:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30249 states to 30249 states and 42637 transitions. [2022-12-14 10:29:46,265 INFO L78 Accepts]: Start accepts. Automaton has 30249 states and 42637 transitions. Word has length 369 [2022-12-14 10:29:46,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:29:46,265 INFO L495 AbstractCegarLoop]: Abstraction has 30249 states and 42637 transitions. [2022-12-14 10:29:46,265 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) [2022-12-14 10:29:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 30249 states and 42637 transitions. [2022-12-14 10:29:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-12-14 10:29:46,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:29:46,270 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:29:46,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:29:46,270 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:29:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:29:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1063050255, now seen corresponding path program 1 times [2022-12-14 10:29:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:29:46,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664365189] [2022-12-14 10:29:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:29:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:29:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:29:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3558 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3550 trivial. 0 not checked. [2022-12-14 10:29:47,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:29:47,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664365189] [2022-12-14 10:29:47,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664365189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:29:47,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:29:47,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:29:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744128989] [2022-12-14 10:29:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:29:47,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:29:47,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:29:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:29:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:29:47,643 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) [2022-12-14 10:29:49,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:02,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:04,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:10,032 INFO L93 Difference]: Finished difference Result 30261 states and 42645 transitions. [2022-12-14 10:30:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:30:10,033 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 376 [2022-12-14 10:30:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:10,131 INFO L225 Difference]: With dead ends: 30261 [2022-12-14 10:30:10,131 INFO L226 Difference]: Without dead ends: 30259 [2022-12-14 10:30:10,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:30:10,153 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s 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, 21.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:10,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 21.3s Time] [2022-12-14 10:30:10,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30259 states. [2022-12-14 10:30:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30259 to 30253. [2022-12-14 10:30:11,093 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) [2022-12-14 10:30:11,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30253 states to 30253 states and 42640 transitions. [2022-12-14 10:30:11,173 INFO L78 Accepts]: Start accepts. Automaton has 30253 states and 42640 transitions. Word has length 376 [2022-12-14 10:30:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:11,173 INFO L495 AbstractCegarLoop]: Abstraction has 30253 states and 42640 transitions. [2022-12-14 10:30:11,174 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) [2022-12-14 10:30:11,174 INFO L276 IsEmpty]: Start isEmpty. Operand 30253 states and 42640 transitions. [2022-12-14 10:30:11,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-12-14 10:30:11,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:11,179 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] [2022-12-14 10:30:11,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:30:11,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:30:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1995341342, now seen corresponding path program 1 times [2022-12-14 10:30:11,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:11,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339149147] [2022-12-14 10:30:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3577 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3567 trivial. 0 not checked. [2022-12-14 10:30:12,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:12,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339149147] [2022-12-14 10:30:12,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339149147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:12,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:12,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:30:12,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835523296] [2022-12-14 10:30:12,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:12,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:30:12,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:12,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:30:12,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:30:12,391 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) [2022-12-14 10:30:14,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:27,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:29,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:34,575 INFO L93 Difference]: Finished difference Result 30265 states and 42648 transitions. [2022-12-14 10:30:34,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:30:34,576 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 [2022-12-14 10:30:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:34,662 INFO L225 Difference]: With dead ends: 30265 [2022-12-14 10:30:34,662 INFO L226 Difference]: Without dead ends: 30263 [2022-12-14 10:30:34,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:30:34,678 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s 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, 21.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:34,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3833 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 21.0s Time] [2022-12-14 10:30:34,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30263 states. [2022-12-14 10:30:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30263 to 30257. [2022-12-14 10:30:35,605 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) [2022-12-14 10:30:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30257 states to 30257 states and 42643 transitions. [2022-12-14 10:30:35,684 INFO L78 Accepts]: Start accepts. Automaton has 30257 states and 42643 transitions. Word has length 382 [2022-12-14 10:30:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:30:35,684 INFO L495 AbstractCegarLoop]: Abstraction has 30257 states and 42643 transitions. [2022-12-14 10:30:35,684 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) [2022-12-14 10:30:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 30257 states and 42643 transitions. [2022-12-14 10:30:35,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-12-14 10:30:35,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:30:35,689 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 7, 6, 6, 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] [2022-12-14 10:30:35,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:30:35,690 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:30:35,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:30:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash -858752989, now seen corresponding path program 1 times [2022-12-14 10:30:35,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:30:35,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551322491] [2022-12-14 10:30:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:30:35,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:30:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:30:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3599 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3587 trivial. 0 not checked. [2022-12-14 10:30:36,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:30:36,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551322491] [2022-12-14 10:30:36,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551322491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:30:36,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:30:36,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:30:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879373784] [2022-12-14 10:30:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:30:36,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:30:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:30:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:30:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:30:36,847 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) [2022-12-14 10:30:38,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:51,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:53,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:30:59,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:30:59,018 INFO L93 Difference]: Finished difference Result 49367 states and 69694 transitions. [2022-12-14 10:30:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:30:59,019 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 387 [2022-12-14 10:30:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:30:59,165 INFO L225 Difference]: With dead ends: 49367 [2022-12-14 10:30:59,165 INFO L226 Difference]: Without dead ends: 49365 [2022-12-14 10:30:59,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:30:59,186 INFO L413 NwaCegarLoop]: 4241 mSDtfsCounter, 3817 mSDsluCounter, 11672 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s 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, 20.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:30:59,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 15913 Invalid, 2289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2283 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time] [2022-12-14 10:30:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49365 states. [2022-12-14 10:31:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49365 to 49351. [2022-12-14 10:31:00,714 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) [2022-12-14 10:31:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49351 states to 49351 states and 69679 transitions. [2022-12-14 10:31:00,860 INFO L78 Accepts]: Start accepts. Automaton has 49351 states and 69679 transitions. Word has length 387 [2022-12-14 10:31:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:00,861 INFO L495 AbstractCegarLoop]: Abstraction has 49351 states and 69679 transitions. [2022-12-14 10:31:00,861 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) [2022-12-14 10:31:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 49351 states and 69679 transitions. [2022-12-14 10:31:00,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-12-14 10:31:00,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:00,867 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 8, 7, 7, 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] [2022-12-14 10:31:00,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:31:00,867 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:31:00,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:00,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1695748940, now seen corresponding path program 1 times [2022-12-14 10:31:00,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:00,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052166988] [2022-12-14 10:31:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:00,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3617 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3603 trivial. 0 not checked. [2022-12-14 10:31:02,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:02,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052166988] [2022-12-14 10:31:02,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052166988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:02,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:02,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:31:02,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008057270] [2022-12-14 10:31:02,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:02,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:31:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:02,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:31:02,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:31:02,063 INFO L87 Difference]: Start difference. First operand 49351 states and 69679 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, (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) [2022-12-14 10:31:04,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:17,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:19,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:24,631 INFO L93 Difference]: Finished difference Result 49363 states and 69687 transitions. [2022-12-14 10:31:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:31:24,632 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, (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 388 [2022-12-14 10:31:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:24,773 INFO L225 Difference]: With dead ends: 49363 [2022-12-14 10:31:24,773 INFO L226 Difference]: Without dead ends: 49361 [2022-12-14 10:31:24,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:31:24,789 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3824 mSDsluCounter, 11753 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 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, 20.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:24,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3832 Valid, 15997 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2295 Invalid, 3 Unknown, 0 Unchecked, 20.9s Time] [2022-12-14 10:31:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49361 states. [2022-12-14 10:31:26,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49361 to 49355. [2022-12-14 10:31:26,351 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) [2022-12-14 10:31:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49355 states to 49355 states and 69682 transitions. [2022-12-14 10:31:26,531 INFO L78 Accepts]: Start accepts. Automaton has 49355 states and 69682 transitions. Word has length 388 [2022-12-14 10:31:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:26,531 INFO L495 AbstractCegarLoop]: Abstraction has 49355 states and 69682 transitions. [2022-12-14 10:31:26,532 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, (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) [2022-12-14 10:31:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 49355 states and 69682 transitions. [2022-12-14 10:31:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-12-14 10:31:26,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:26,537 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] [2022-12-14 10:31:26,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 10:31:26,538 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:31:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash -199544815, now seen corresponding path program 1 times [2022-12-14 10:31:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:26,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564345100] [2022-12-14 10:31:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3647 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3631 trivial. 0 not checked. [2022-12-14 10:31:27,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:27,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564345100] [2022-12-14 10:31:27,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564345100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:27,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:27,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:31:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224525491] [2022-12-14 10:31:27,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:27,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:31:27,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:31:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:31:27,738 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) [2022-12-14 10:31:29,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:42,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:31:50,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:50,609 INFO L93 Difference]: Finished difference Result 49367 states and 69690 transitions. [2022-12-14 10:31:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:31:50,610 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 [2022-12-14 10:31:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:50,765 INFO L225 Difference]: With dead ends: 49367 [2022-12-14 10:31:50,765 INFO L226 Difference]: Without dead ends: 49365 [2022-12-14 10:31:50,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:31:50,781 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3824 mSDsluCounter, 11753 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s 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, 21.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:50,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 15997 Invalid, 2300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2295 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2022-12-14 10:31:50,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49365 states. [2022-12-14 10:31:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49365 to 49359. [2022-12-14 10:31:52,568 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) [2022-12-14 10:31:52,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49359 states to 49359 states and 69685 transitions. [2022-12-14 10:31:52,719 INFO L78 Accepts]: Start accepts. Automaton has 49359 states and 69685 transitions. Word has length 393 [2022-12-14 10:31:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:52,719 INFO L495 AbstractCegarLoop]: Abstraction has 49359 states and 69685 transitions. [2022-12-14 10:31:52,720 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) [2022-12-14 10:31:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 49359 states and 69685 transitions. [2022-12-14 10:31:52,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-12-14 10:31:52,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:52,726 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] [2022-12-14 10:31:52,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:31:52,726 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:31:52,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1044710540, now seen corresponding path program 1 times [2022-12-14 10:31:52,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:52,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719721380] [2022-12-14 10:31:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3688 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3670 trivial. 0 not checked. [2022-12-14 10:31:54,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:54,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719721380] [2022-12-14 10:31:54,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719721380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:54,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:54,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:31:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010545395] [2022-12-14 10:31:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:54,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:31:54,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:31:54,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:31:54,169 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) [2022-12-14 10:31:56,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:10,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:12,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:32:18,166 INFO L93 Difference]: Finished difference Result 83125 states and 117567 transitions. [2022-12-14 10:32:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:32:18,167 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 [2022-12-14 10:32:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:32:18,485 INFO L225 Difference]: With dead ends: 83125 [2022-12-14 10:32:18,485 INFO L226 Difference]: Without dead ends: 83123 [2022-12-14 10:32:18,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:32:18,528 INFO L413 NwaCegarLoop]: 4126 mSDtfsCounter, 3733 mSDsluCounter, 11031 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s 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, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:32:18,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3739 Valid, 15157 Invalid, 2241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2235 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 10:32:18,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83123 states. [2022-12-14 10:32:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83123 to 83101. [2022-12-14 10:32:21,303 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) [2022-12-14 10:32:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83101 states to 83101 states and 117542 transitions. [2022-12-14 10:32:21,584 INFO L78 Accepts]: Start accepts. Automaton has 83101 states and 117542 transitions. Word has length 401 [2022-12-14 10:32:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:32:21,585 INFO L495 AbstractCegarLoop]: Abstraction has 83101 states and 117542 transitions. [2022-12-14 10:32:21,585 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) [2022-12-14 10:32:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 83101 states and 117542 transitions. [2022-12-14 10:32:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-12-14 10:32:21,592 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:32:21,592 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:32:21,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:32:21,592 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:32:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:32:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash 163743953, now seen corresponding path program 1 times [2022-12-14 10:32:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:32:21,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352099183] [2022-12-14 10:32:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:32:21,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:32:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:32:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3706 trivial. 0 not checked. [2022-12-14 10:32:22,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:32:22,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352099183] [2022-12-14 10:32:22,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352099183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:32:22,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:32:22,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:32:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673883935] [2022-12-14 10:32:22,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:32:22,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:32:22,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:32:22,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:32:22,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:32:22,830 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) [2022-12-14 10:32:24,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:39,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:41,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:32:47,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:32:47,752 INFO L93 Difference]: Finished difference Result 83113 states and 117550 transitions. [2022-12-14 10:32:47,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:32:47,753 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 406 [2022-12-14 10:32:47,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:32:48,094 INFO L225 Difference]: With dead ends: 83113 [2022-12-14 10:32:48,094 INFO L226 Difference]: Without dead ends: 83111 [2022-12-14 10:32:48,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:32:48,119 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s 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, 22.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:32:48,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3828 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.2s Time] [2022-12-14 10:32:48,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83111 states. [2022-12-14 10:32:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83111 to 83105. [2022-12-14 10:32:50,809 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) [2022-12-14 10:32:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83105 states to 83105 states and 117545 transitions. [2022-12-14 10:32:51,072 INFO L78 Accepts]: Start accepts. Automaton has 83105 states and 117545 transitions. Word has length 406 [2022-12-14 10:32:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:32:51,073 INFO L495 AbstractCegarLoop]: Abstraction has 83105 states and 117545 transitions. [2022-12-14 10:32:51,073 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) [2022-12-14 10:32:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 83105 states and 117545 transitions. [2022-12-14 10:32:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-12-14 10:32:51,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:32:51,080 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 12, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:32:51,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:32:51,080 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:32:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:32:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1697985282, now seen corresponding path program 1 times [2022-12-14 10:32:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:32:51,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201031618] [2022-12-14 10:32:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:32:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:32:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:32:52,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3747 trivial. 0 not checked. [2022-12-14 10:32:52,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:32:52,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201031618] [2022-12-14 10:32:52,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201031618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:32:52,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:32:52,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:32:52,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892622378] [2022-12-14 10:32:52,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:32:52,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:32:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:32:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:32:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:32:52,208 INFO L87 Difference]: Start difference. First operand 83105 states and 117545 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 10:32:54,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:08,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:10,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:33:16,824 INFO L93 Difference]: Finished difference Result 83117 states and 117553 transitions. [2022-12-14 10:33:16,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:33:16,825 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 412 [2022-12-14 10:33:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:33:17,100 INFO L225 Difference]: With dead ends: 83117 [2022-12-14 10:33:17,101 INFO L226 Difference]: Without dead ends: 83115 [2022-12-14 10:33:17,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:33:17,140 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 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, 21.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:33:17,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 21.9s Time] [2022-12-14 10:33:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83115 states. [2022-12-14 10:33:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83115 to 83109. [2022-12-14 10:33:19,930 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) [2022-12-14 10:33:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83109 states to 83109 states and 117548 transitions. [2022-12-14 10:33:20,205 INFO L78 Accepts]: Start accepts. Automaton has 83109 states and 117548 transitions. Word has length 412 [2022-12-14 10:33:20,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:33:20,206 INFO L495 AbstractCegarLoop]: Abstraction has 83109 states and 117548 transitions. [2022-12-14 10:33:20,206 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 10:33:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 83109 states and 117548 transitions. [2022-12-14 10:33:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-12-14 10:33:20,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:33:20,213 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 13, 12, 12, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:33:20,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:33:20,213 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)] === [2022-12-14 10:33:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:33:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1335691651, now seen corresponding path program 1 times [2022-12-14 10:33:20,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:33:20,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359424808] [2022-12-14 10:33:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:33:20,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:33:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:33:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3815 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3791 trivial. 0 not checked. [2022-12-14 10:33:21,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:33:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359424808] [2022-12-14 10:33:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359424808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:33:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:33:21,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:33:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666447054] [2022-12-14 10:33:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:33:21,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:33:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:33:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:33:21,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:33:21,442 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) [2022-12-14 10:33:23,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:37,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:39,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:33:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:33:46,244 INFO L93 Difference]: Finished difference Result 83121 states and 117556 transitions. [2022-12-14 10:33:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:33:46,245 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, (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) Word has length 417 [2022-12-14 10:33:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:33:46,496 INFO L225 Difference]: With dead ends: 83121 [2022-12-14 10:33:46,496 INFO L226 Difference]: Without dead ends: 83119 [2022-12-14 10:33:46,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:33:46,527 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3823 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 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, 22.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:33:46,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.1s Time] [2022-12-14 10:33:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83119 states. [2022-12-14 10:33:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83119 to 83113. [2022-12-14 10:33:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83113 states, 50629 states have (on average 1.2951272985838156) internal successors, (65571), 51961 states have internal predecessors, (65571), 25589 states have call successors, (25589), 7065 states have call predecessors, (25589), 6892 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-12-14 10:33:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83113 states to 83113 states and 117551 transitions. [2022-12-14 10:33:49,618 INFO L78 Accepts]: Start accepts. Automaton has 83113 states and 117551 transitions. Word has length 417 [2022-12-14 10:33:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:33:49,619 INFO L495 AbstractCegarLoop]: Abstraction has 83113 states and 117551 transitions. [2022-12-14 10:33:49,619 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, (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) [2022-12-14 10:33:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 83113 states and 117551 transitions. [2022-12-14 10:33:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-14 10:33:49,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:33:49,626 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 14, 13, 13, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:33:49,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:33:49,627 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:33:49,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:33:49,627 INFO L85 PathProgramCache]: Analyzing trace with hash 519074388, now seen corresponding path program 1 times [2022-12-14 10:33:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:33:49,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479216541] [2022-12-14 10:33:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:33:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:33:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:33:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3857 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3831 trivial. 0 not checked. [2022-12-14 10:33:50,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:33:50,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479216541] [2022-12-14 10:33:50,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479216541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:33:50,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:33:50,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:33:50,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47420219] [2022-12-14 10:33:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:33:50,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:33:50,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:33:50,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:33:50,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:33:50,839 INFO L87 Difference]: Start difference. First operand 83113 states and 117551 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 10:33:52,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:06,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:08,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:15,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:34:15,801 INFO L93 Difference]: Finished difference Result 83125 states and 117559 transitions. [2022-12-14 10:34:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:34:15,802 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 418 [2022-12-14 10:34:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:34:16,048 INFO L225 Difference]: With dead ends: 83125 [2022-12-14 10:34:16,049 INFO L226 Difference]: Without dead ends: 83123 [2022-12-14 10:34:16,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:34:16,077 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 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, 22.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:34:16,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 22.3s Time] [2022-12-14 10:34:16,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83123 states. [2022-12-14 10:34:18,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83123 to 83117. [2022-12-14 10:34:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83117 states, 50632 states have (on average 1.2951098119766156) internal successors, (65574), 51964 states have internal predecessors, (65574), 25589 states have call successors, (25589), 7066 states have call predecessors, (25589), 6893 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-12-14 10:34:19,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83117 states to 83117 states and 117554 transitions. [2022-12-14 10:34:19,245 INFO L78 Accepts]: Start accepts. Automaton has 83117 states and 117554 transitions. Word has length 418 [2022-12-14 10:34:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:34:19,246 INFO L495 AbstractCegarLoop]: Abstraction has 83117 states and 117554 transitions. [2022-12-14 10:34:19,246 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, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 10:34:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 83117 states and 117554 transitions. [2022-12-14 10:34:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-12-14 10:34:19,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:34:19,253 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 15, 14, 14, 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, 1, 1, 1, 1, 1, 1] [2022-12-14 10:34:19,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:34:19,254 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:34:19,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:34:19,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2143765263, now seen corresponding path program 1 times [2022-12-14 10:34:19,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:34:19,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117651823] [2022-12-14 10:34:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:34:19,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:34:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:34:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3911 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3883 trivial. 0 not checked. [2022-12-14 10:34:20,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:34:20,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117651823] [2022-12-14 10:34:20,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117651823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:34:20,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:34:20,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:34:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389631427] [2022-12-14 10:34:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:34:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:34:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:34:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:34:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:34:20,538 INFO L87 Difference]: Start difference. First operand 83117 states and 117554 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, (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) [2022-12-14 10:34:22,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:36,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:38,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:34:45,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:34:45,216 INFO L93 Difference]: Finished difference Result 83129 states and 117562 transitions. [2022-12-14 10:34:45,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:34:45,217 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, (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) Word has length 423 [2022-12-14 10:34:45,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:34:45,460 INFO L225 Difference]: With dead ends: 83129 [2022-12-14 10:34:45,460 INFO L226 Difference]: Without dead ends: 83125 [2022-12-14 10:34:45,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:34:45,485 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3824 mSDsluCounter, 11785 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 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, 21.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:34:45,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 16045 Invalid, 2306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2301 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2022-12-14 10:34:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83125 states. [2022-12-14 10:34:48,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83125 to 83119. [2022-12-14 10:34:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83119 states, 50634 states have (on average 1.295078405814275) internal successors, (65575), 51965 states have internal predecessors, (65575), 25589 states have call successors, (25589), 7067 states have call predecessors, (25589), 6893 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-12-14 10:34:48,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83119 states to 83119 states and 117555 transitions. [2022-12-14 10:34:48,972 INFO L78 Accepts]: Start accepts. Automaton has 83119 states and 117555 transitions. Word has length 423 [2022-12-14 10:34:48,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:34:48,972 INFO L495 AbstractCegarLoop]: Abstraction has 83119 states and 117555 transitions. [2022-12-14 10:34:48,973 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, (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) [2022-12-14 10:34:48,973 INFO L276 IsEmpty]: Start isEmpty. Operand 83119 states and 117555 transitions. [2022-12-14 10:34:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-12-14 10:34:48,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:34:48,981 INFO L195 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:34:48,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 10:34:48,981 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:34:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:34:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash -820063181, now seen corresponding path program 1 times [2022-12-14 10:34:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:34:48,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92598164] [2022-12-14 10:34:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:34:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:34:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:34:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3738 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2022-12-14 10:34:51,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:34:51,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92598164] [2022-12-14 10:34:51,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92598164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:34:51,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:34:51,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:34:51,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182485970] [2022-12-14 10:34:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:34:51,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:34:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:34:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:34:51,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:34:51,061 INFO L87 Difference]: Start difference. First operand 83119 states and 117555 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 10:34:53,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:07,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:09,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:35:15,168 INFO L93 Difference]: Finished difference Result 83223 states and 117655 transitions. [2022-12-14 10:35:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:35:15,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 432 [2022-12-14 10:35:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:35:15,412 INFO L225 Difference]: With dead ends: 83223 [2022-12-14 10:35:15,412 INFO L226 Difference]: Without dead ends: 83221 [2022-12-14 10:35:15,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:35:15,441 INFO L413 NwaCegarLoop]: 4241 mSDtfsCounter, 3793 mSDsluCounter, 11685 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3796 SdHoareTripleChecker+Valid, 15926 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:35:15,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3796 Valid, 15926 Invalid, 2276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2270 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2022-12-14 10:35:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83221 states. [2022-12-14 10:35:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83221 to 83199. [2022-12-14 10:35:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83199 states, 50694 states have (on average 1.2947291592693415) internal successors, (65635), 52025 states have internal predecessors, (65635), 25589 states have call successors, (25589), 7087 states have call predecessors, (25589), 6913 states have return successors, (26391), 24936 states have call predecessors, (26391), 25553 states have call successors, (26391) [2022-12-14 10:35:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83199 states to 83199 states and 117615 transitions. [2022-12-14 10:35:18,643 INFO L78 Accepts]: Start accepts. Automaton has 83199 states and 117615 transitions. Word has length 432 [2022-12-14 10:35:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:35:18,643 INFO L495 AbstractCegarLoop]: Abstraction has 83199 states and 117615 transitions. [2022-12-14 10:35:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 10:35:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 83199 states and 117615 transitions. [2022-12-14 10:35:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-12-14 10:35:18,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:35:18,651 INFO L195 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:35:18,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:35:18,651 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:35:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:35:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1345197118, now seen corresponding path program 1 times [2022-12-14 10:35:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:35:18,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294425451] [2022-12-14 10:35:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:35:18,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:35:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:35:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3947 trivial. 0 not checked. [2022-12-14 10:35:19,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:35:19,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294425451] [2022-12-14 10:35:19,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294425451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:35:19,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:35:19,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:35:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480187413] [2022-12-14 10:35:19,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:35:19,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:35:19,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:35:19,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:35:19,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:35:19,842 INFO L87 Difference]: Start difference. First operand 83199 states and 117615 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, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 10:35:21,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:36,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:38,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:35:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:35:45,418 INFO L93 Difference]: Finished difference Result 83205 states and 117618 transitions. [2022-12-14 10:35:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:35:45,419 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, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 432 [2022-12-14 10:35:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:35:45,687 INFO L225 Difference]: With dead ends: 83205 [2022-12-14 10:35:45,687 INFO L226 Difference]: Without dead ends: 83076 [2022-12-14 10:35:45,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:35:45,725 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 3819 mSDsluCounter, 11755 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3819 SdHoareTripleChecker+Valid, 15999 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:35:45,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3819 Valid, 15999 Invalid, 2296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2291 Invalid, 3 Unknown, 0 Unchecked, 22.5s Time] [2022-12-14 10:35:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83076 states. [2022-12-14 10:35:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83076 to 83072. [2022-12-14 10:35:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83072 states, 50639 states have (on average 1.2946938130689785) internal successors, (65562), 51953 states have internal predecessors, (65562), 25534 states have call successors, (25534), 7064 states have call predecessors, (25534), 6896 states have return successors, (26340), 24904 states have call predecessors, (26340), 25502 states have call successors, (26340) [2022-12-14 10:35:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83072 states to 83072 states and 117436 transitions. [2022-12-14 10:35:49,003 INFO L78 Accepts]: Start accepts. Automaton has 83072 states and 117436 transitions. Word has length 432 [2022-12-14 10:35:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:35:49,003 INFO L495 AbstractCegarLoop]: Abstraction has 83072 states and 117436 transitions. [2022-12-14 10:35:49,003 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, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-12-14 10:35:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand 83072 states and 117436 transitions. [2022-12-14 10:35:49,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-12-14 10:35:49,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:35:49,010 INFO L195 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:35:49,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 10:35:49,010 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:35:49,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:35:49,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2006424603, now seen corresponding path program 1 times [2022-12-14 10:35:49,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:35:49,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833724817] [2022-12-14 10:35:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:35:49,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:35:50,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3738 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2022-12-14 10:35:50,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:35:50,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833724817] [2022-12-14 10:35:50,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833724817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:35:50,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:35:50,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:35:50,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790143637] [2022-12-14 10:35:50,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:35:50,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:35:50,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:35:50,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:35:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:35:50,648 INFO L87 Difference]: Start difference. First operand 83072 states and 117436 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 10:35:52,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:06,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:08,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:36:14,902 INFO L93 Difference]: Finished difference Result 83176 states and 117536 transitions. [2022-12-14 10:36:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:36:14,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 445 [2022-12-14 10:36:14,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:36:15,168 INFO L225 Difference]: With dead ends: 83176 [2022-12-14 10:36:15,168 INFO L226 Difference]: Without dead ends: 83174 [2022-12-14 10:36:15,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:36:15,206 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 3807 mSDsluCounter, 11876 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 16172 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:36:15,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3810 Valid, 16172 Invalid, 2293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2287 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2022-12-14 10:36:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83174 states. [2022-12-14 10:36:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83174 to 83152. [2022-12-14 10:36:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83152 states, 50699 states have (on average 1.2943450561155052) internal successors, (65622), 52013 states have internal predecessors, (65622), 25534 states have call successors, (25534), 7084 states have call predecessors, (25534), 6916 states have return successors, (26340), 24904 states have call predecessors, (26340), 25502 states have call successors, (26340) [2022-12-14 10:36:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83152 states to 83152 states and 117496 transitions. [2022-12-14 10:36:18,438 INFO L78 Accepts]: Start accepts. Automaton has 83152 states and 117496 transitions. Word has length 445 [2022-12-14 10:36:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:36:18,439 INFO L495 AbstractCegarLoop]: Abstraction has 83152 states and 117496 transitions. [2022-12-14 10:36:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 10:36:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 83152 states and 117496 transitions. [2022-12-14 10:36:18,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2022-12-14 10:36:18,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:18,447 INFO L195 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:36:18,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 10:36:18,447 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:36:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1305327866, now seen corresponding path program 1 times [2022-12-14 10:36:18,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:18,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115800467] [2022-12-14 10:36:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:18,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3762 trivial. 0 not checked. [2022-12-14 10:36:19,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:19,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115800467] [2022-12-14 10:36:19,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115800467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:36:19,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:36:19,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:36:19,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877079909] [2022-12-14 10:36:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:36:19,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:36:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:36:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:36:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:36:19,982 INFO L87 Difference]: Start difference. First operand 83152 states and 117496 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 10:36:22,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:39,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:41,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:36:43,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:36:43,610 INFO L93 Difference]: Finished difference Result 83330 states and 117617 transitions. [2022-12-14 10:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:36:43,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 450 [2022-12-14 10:36:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:36:43,904 INFO L225 Difference]: With dead ends: 83330 [2022-12-14 10:36:43,904 INFO L226 Difference]: Without dead ends: 83328 [2022-12-14 10:36:43,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:36:43,931 INFO L413 NwaCegarLoop]: 3375 mSDtfsCounter, 32 mSDsluCounter, 10091 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 13466 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:36:43,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 13466 Invalid, 2290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2286 Invalid, 3 Unknown, 0 Unchecked, 21.0s Time] [2022-12-14 10:36:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83328 states. [2022-12-14 10:36:46,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83328 to 83328. [2022-12-14 10:36:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83328 states, 50807 states have (on average 1.2935619107603282) internal successors, (65722), 52121 states have internal predecessors, (65722), 25534 states have call successors, (25534), 7152 states have call predecessors, (25534), 6984 states have return successors, (26340), 24904 states have call predecessors, (26340), 25502 states have call successors, (26340) [2022-12-14 10:36:47,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83328 states to 83328 states and 117596 transitions. [2022-12-14 10:36:47,160 INFO L78 Accepts]: Start accepts. Automaton has 83328 states and 117596 transitions. Word has length 450 [2022-12-14 10:36:47,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:36:47,160 INFO L495 AbstractCegarLoop]: Abstraction has 83328 states and 117596 transitions. [2022-12-14 10:36:47,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 10:36:47,160 INFO L276 IsEmpty]: Start isEmpty. Operand 83328 states and 117596 transitions. [2022-12-14 10:36:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2022-12-14 10:36:47,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:36:47,168 INFO L195 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:36:47,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 10:36:47,168 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:36:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:36:47,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2007676759, now seen corresponding path program 1 times [2022-12-14 10:36:47,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:36:47,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771040377] [2022-12-14 10:36:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:36:47,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:36:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:36:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3738 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2022-12-14 10:36:49,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:36:49,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771040377] [2022-12-14 10:36:49,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771040377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:36:49,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:36:49,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:36:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560889816] [2022-12-14 10:36:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:36:49,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:36:49,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:36:49,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:36:49,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:36:49,181 INFO L87 Difference]: Start difference. First operand 83328 states and 117596 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 10:36:51,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:37:05,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:37:07,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:37:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:37:13,784 INFO L93 Difference]: Finished difference Result 83400 states and 117664 transitions. [2022-12-14 10:37:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:37:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 452 [2022-12-14 10:37:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:37:14,059 INFO L225 Difference]: With dead ends: 83400 [2022-12-14 10:37:14,059 INFO L226 Difference]: Without dead ends: 83398 [2022-12-14 10:37:14,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:37:14,090 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 3691 mSDsluCounter, 11081 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 15226 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:37:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3694 Valid, 15226 Invalid, 2229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2223 Invalid, 3 Unknown, 0 Unchecked, 21.6s Time] [2022-12-14 10:37:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83398 states. [2022-12-14 10:37:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83398 to 83376. [2022-12-14 10:37:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83376 states, 50843 states have (on average 1.2931967035776804) internal successors, (65750), 52157 states have internal predecessors, (65750), 25534 states have call successors, (25534), 7164 states have call predecessors, (25534), 6996 states have return successors, (26340), 24904 states have call predecessors, (26340), 25502 states have call successors, (26340) [2022-12-14 10:37:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83376 states to 83376 states and 117624 transitions. [2022-12-14 10:37:17,572 INFO L78 Accepts]: Start accepts. Automaton has 83376 states and 117624 transitions. Word has length 452 [2022-12-14 10:37:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:37:17,573 INFO L495 AbstractCegarLoop]: Abstraction has 83376 states and 117624 transitions. [2022-12-14 10:37:17,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 10:37:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 83376 states and 117624 transitions. [2022-12-14 10:37:17,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-12-14 10:37:17,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:37:17,582 INFO L195 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:37:17,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 10:37:17,582 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:37:17,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:37:17,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1877255031, now seen corresponding path program 1 times [2022-12-14 10:37:17,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:37:17,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774598374] [2022-12-14 10:37:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:37:17,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:37:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:37:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3764 trivial. 0 not checked. [2022-12-14 10:37:19,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:37:19,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774598374] [2022-12-14 10:37:19,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774598374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:37:19,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:37:19,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 10:37:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644380593] [2022-12-14 10:37:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:37:19,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:37:19,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:37:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:37:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:37:19,562 INFO L87 Difference]: Start difference. First operand 83376 states and 117624 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52)