./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/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_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/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_ad7fdd48-ed51-4b0c-9113-9841fe444541/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 bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- 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 08:59:09,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:59:09,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:59:09,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:59:09,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:59:09,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:59:09,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:59:09,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:59:09,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:59:09,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:59:09,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:59:09,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:59:09,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:59:09,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:59:09,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:59:09,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:59:09,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:59:09,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:59:09,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:59:09,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:59:09,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:59:09,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:59:09,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:59:09,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:59:09,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:59:09,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:59:09,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:59:09,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:59:09,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:59:09,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:59:09,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:59:09,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:59:09,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:59:09,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:59:09,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:59:09,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:59:09,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:59:09,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:59:09,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:59:09,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:59:09,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:59:09,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:59:09,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:59:09,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:59:09,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:59:09,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:59:09,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:59:09,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:59:09,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:59:09,771 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:59:09,772 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:59:09,772 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:59:09,772 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:59:09,772 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:59:09,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:59:09,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:59:09,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:59:09,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:59:09,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:59:09,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:59:09,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:59:09,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:59:09,775 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2022-12-14 08:59:09,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:59:09,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:59:09,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:59:09,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:59:09,958 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:59:09,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 08:59:12,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:59:12,969 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:59:12,970 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 08:59:13,002 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/data/a79dd70f2/dd11ea8ff8554c159a7507015e21052a/FLAGaa45c4a23 [2022-12-14 08:59:13,013 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/data/a79dd70f2/dd11ea8ff8554c159a7507015e21052a [2022-12-14 08:59:13,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:59:13,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:59:13,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:59:13,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:59:13,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:59:13,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:59:13" (1/1) ... [2022-12-14 08:59:13,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696b091d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:13, skipping insertion in model container [2022-12-14 08:59:13,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:59:13" (1/1) ... [2022-12-14 08:59:13,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:59:13,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:59:13,704 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 08:59:13,713 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 08:59:13,739 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:59:13,751 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:59:13,763 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:59:13,869 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:13,922 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 08:59:13,926 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 08:59:13,926 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 08:59:13,932 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 08:59:13,938 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 08:59:13,943 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 08:59:13,963 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 08:59:13,968 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:59:13,970 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 08:59:13,991 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 08:59:14,025 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:59:14,026 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:14,072 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 08:59:14,073 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 08:59:14,081 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:59:14,081 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,104 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 08:59:14,138 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:14,139 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:14,139 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:14,140 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:14,140 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 08:59:14,203 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 08:59:14,245 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 08:59:14,480 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,481 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,481 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,487 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,490 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,492 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 08:59:14,493 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,493 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,494 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 08:59:14,495 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,495 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,505 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 08:59:14,506 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 08:59:14,510 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:14,515 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 08:59:14,519 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:14,521 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:14,522 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:14,528 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:14,541 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 08:59:14,552 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,562 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,562 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,563 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,566 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,567 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:14,571 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:14,572 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,572 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,573 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,574 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,575 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,589 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:14,589 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:14,590 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:14,590 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,596 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,597 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,598 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:14,599 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:14,600 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 08:59:14,600 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 08:59:14,624 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,625 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,628 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,637 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 08:59:14,652 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 08:59:14,653 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:14,654 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:14,655 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 08:59:14,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,656 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 08:59:14,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,658 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 08:59:14,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,659 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 08:59:14,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,670 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,680 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:59:14,683 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 08:59:14,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,686 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-12-14 08:59:14,687 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:14,687 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:14,687 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-12-14 08:59:14,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,691 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 08:59:14,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,693 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:14,696 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,697 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,699 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,699 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,700 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,700 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:14,703 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,707 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,714 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:14,714 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 08:59:14,715 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,718 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,722 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,726 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,735 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,739 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,740 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:14,741 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 08:59:14,742 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,744 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:14,747 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 08:59:14,750 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,756 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 08:59:14,762 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:14,762 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,764 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:14,765 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 08:59:14,765 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,766 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 08:59:14,767 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:14,768 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,770 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:14,770 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 08:59:14,775 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 08:59:14,776 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 08:59:14,776 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 08:59:14,776 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 08:59:14,781 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 08:59:14,781 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 08:59:14,782 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 08:59:14,786 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:14,787 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 08:59:14,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:14,799 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:15,134 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,134 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,135 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,135 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,135 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,136 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,136 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,136 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,136 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,136 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,137 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,137 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,137 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,141 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 08:59:15,142 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 08:59:15,143 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 08:59:15,145 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:59:15,147 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 08:59:15,148 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 08:59:15,154 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 08:59:15,155 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 08:59:15,165 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 08:59:15,165 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 08:59:15,166 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,167 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,167 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,167 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,167 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,167 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,168 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,168 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,168 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,168 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,168 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,169 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,169 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,169 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,169 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 08:59:15,169 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 08:59:15,170 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:15,170 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,171 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 08:59:15,171 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 08:59:15,171 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,171 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,172 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:59:15,172 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,173 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 08:59:15,173 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,173 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,173 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,173 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,174 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:15,174 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 08:59:15,174 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 08:59:15,174 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:15,175 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 08:59:15,175 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 08:59:15,175 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:15,175 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 08:59:15,223 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 08:59:15,223 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:59:15,231 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 08:59:15,756 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-12-14 08:59:15,759 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-12-14 08:59:15,760 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-12-14 08:59:15,760 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-12-14 08:59:15,760 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,761 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,762 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,762 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:59:15,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:59:15,900 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 08:59:15,900 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 08:59:15,901 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:59:15,901 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:59:15,901 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:59:15,904 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:15,908 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 08:59:15,909 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 08:59:15,910 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 08:59:15,911 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 08:59:15,911 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 08:59:15,912 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 08:59:15,914 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 08:59:15,914 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:59:15,914 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 08:59:15,915 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 08:59:15,916 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:59:15,917 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:15,918 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 08:59:15,918 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 08:59:15,919 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:59:15,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,920 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 08:59:15,921 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:15,922 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:15,922 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:15,922 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:59:15,922 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 08:59:15,923 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 08:59:15,925 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 08:59:15,933 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,934 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,934 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,935 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,936 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,938 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,939 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 08:59:15,939 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,939 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,940 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 08:59:15,940 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,940 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:15,942 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 08:59:15,942 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 08:59:15,943 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:15,943 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 08:59:15,944 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:15,944 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:15,945 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 08:59:15,945 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:15,946 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 08:59:15,949 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:15,950 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,950 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,951 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,953 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,953 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:15,955 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:15,956 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,956 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,957 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,958 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,962 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 08:59:15,962 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:15,962 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:15,963 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:15,964 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,965 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,965 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:15,966 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 08:59:15,967 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 08:59:15,967 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 08:59:15,969 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,970 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,971 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:15,972 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 08:59:15,977 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 08:59:15,977 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:15,978 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:15,978 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 08:59:15,978 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,978 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 08:59:15,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,979 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 08:59:15,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,980 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 08:59:15,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,989 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,993 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:59:15,994 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 08:59:15,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,997 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-12-14 08:59:15,997 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:15,997 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 08:59:15,997 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-12-14 08:59:15,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:15,999 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 08:59:16,000 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,001 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:16,002 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:16,003 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:16,004 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:16,004 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:16,004 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:16,004 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:59:16,006 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,009 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,031 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:16,032 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 08:59:16,032 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,034 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,037 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:16,039 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:16,040 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,042 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,044 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,046 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,047 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 08:59:16,047 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 08:59:16,048 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,049 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 08:59:16,051 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 08:59:16,053 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,056 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 08:59:16,057 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:16,057 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,059 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 08:59:16,059 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 08:59:16,060 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,060 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 08:59:16,061 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 08:59:16,062 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,063 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 08:59:16,064 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 08:59:16,065 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 08:59:16,066 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 08:59:16,066 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 08:59:16,066 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 08:59:16,067 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 08:59:16,067 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 08:59:16,067 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 08:59:16,068 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:16,068 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 08:59:16,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:59:16,071 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 08:59:16,076 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,080 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 08:59:16,081 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 08:59:16,082 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 08:59:16,083 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:59:16,085 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 08:59:16,085 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 08:59:16,090 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 08:59:16,091 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 08:59:16,100 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 08:59:16,100 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 08:59:16,103 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,104 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,105 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 08:59:16,106 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 08:59:16,106 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:16,106 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,107 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 08:59:16,107 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 08:59:16,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,107 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,109 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 08:59:16,109 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 08:59:16,109 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 08:59:16,109 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:16,109 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 08:59:16,110 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 08:59:16,110 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 08:59:16,110 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 08:59:16,112 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 08:59:16,112 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:59:16,113 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 08:59:16,127 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2022-12-14 08:59:16,128 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2022-12-14 08:59:16,128 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2022-12-14 08:59:16,128 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_ad7fdd48-ed51-4b0c-9113-9841fe444541/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2022-12-14 08:59:16,128 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,130 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,131 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,131 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 08:59:16,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:59:16,275 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:59:16,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16 WrapperNode [2022-12-14 08:59:16,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:59:16,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:59:16,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:59:16,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:59:16,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,505 INFO L138 Inliner]: procedures = 559, calls = 2899, calls flagged for inlining = 295, calls inlined = 261, statements flattened = 7389 [2022-12-14 08:59:16,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:59:16,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:59:16,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:59:16,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:59:16,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:59:16,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:59:16,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:59:16,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:59:16,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (1/1) ... [2022-12-14 08:59:16,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:59:16,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:16,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:59:16,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-14 08:59:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 08:59:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 08:59:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 08:59:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 08:59:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 08:59:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 08:59:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 08:59:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 08:59:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 08:59:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-12-14 08:59:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:59:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 08:59:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-12-14 08:59:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 08:59:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 08:59:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 08:59:16,795 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-12-14 08:59:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 08:59:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 08:59:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 08:59:16,797 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 08:59:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-12-14 08:59:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-12-14 08:59:16,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-12-14 08:59:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-12-14 08:59:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-12-14 08:59:16,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-12-14 08:59:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 08:59:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-12-14 08:59:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 08:59:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-12-14 08:59:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-12-14 08:59:16,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-12-14 08:59:16,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 08:59:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 08:59:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 08:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 08:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 08:59:17,510 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:59:17,512 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:59:17,672 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 08:59:24,311 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 08:59:24,404 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:59:25,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:59:25,457 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-12-14 08:59:25,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:59:25 BoogieIcfgContainer [2022-12-14 08:59:25,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:59:25,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:59:25,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:59:25,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:59:25,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:59:13" (1/3) ... [2022-12-14 08:59:25,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ebeca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:59:25, skipping insertion in model container [2022-12-14 08:59:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:16" (2/3) ... [2022-12-14 08:59:25,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ebeca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:59:25, skipping insertion in model container [2022-12-14 08:59:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:59:25" (3/3) ... [2022-12-14 08:59:25,469 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 08:59:25,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:59:25,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 08:59:25,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:59:25,582 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;@74785ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:59:25,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 08:59:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 1997 states, 1182 states have (on average 1.3164128595600677) internal successors, (1556), 1224 states have internal predecessors, (1556), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) [2022-12-14 08:59:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 08:59:25,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:25,605 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:25,605 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 08:59:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:25,609 INFO L85 PathProgramCache]: Analyzing trace with hash -284027491, now seen corresponding path program 1 times [2022-12-14 08:59:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:25,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310842993] [2022-12-14 08:59:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 08:59:26,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:26,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310842993] [2022-12-14 08:59:26,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310842993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:26,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:26,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:59:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548968492] [2022-12-14 08:59:26,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:26,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:26,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:26,247 INFO L87 Difference]: Start difference. First operand has 1997 states, 1182 states have (on average 1.3164128595600677) internal successors, (1556), 1224 states have internal predecessors, (1556), 692 states have call successors, (692), 123 states have call predecessors, (692), 122 states have return successors, (684), 671 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 08:59:29,708 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 08:59:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:30,064 INFO L93 Difference]: Finished difference Result 5718 states and 8561 transitions. [2022-12-14 08:59:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:59:30,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2022-12-14 08:59:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:30,092 INFO L225 Difference]: With dead ends: 5718 [2022-12-14 08:59:30,092 INFO L226 Difference]: Without dead ends: 3736 [2022-12-14 08:59:30,105 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 08:59:30,107 INFO L413 NwaCegarLoop]: 3125 mSDtfsCounter, 2624 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:30,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 5575 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 814 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 08:59:30,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2022-12-14 08:59:30,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3732. [2022-12-14 08:59:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 2222 states have (on average 1.3123312331233123) internal successors, (2916), 2297 states have internal predecessors, (2916), 1269 states have call successors, (1269), 239 states have call predecessors, (1269), 238 states have return successors, (1267), 1241 states have call predecessors, (1267), 1265 states have call successors, (1267) [2022-12-14 08:59:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5452 transitions. [2022-12-14 08:59:30,308 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 5452 transitions. Word has length 152 [2022-12-14 08:59:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:30,309 INFO L495 AbstractCegarLoop]: Abstraction has 3732 states and 5452 transitions. [2022-12-14 08:59:30,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 08:59:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 5452 transitions. [2022-12-14 08:59:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-14 08:59:30,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:30,315 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:59:30,315 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 08:59:30,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:30,315 INFO L85 PathProgramCache]: Analyzing trace with hash -157070610, now seen corresponding path program 1 times [2022-12-14 08:59:30,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:30,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46941752] [2022-12-14 08:59:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 08:59:30,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:30,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46941752] [2022-12-14 08:59:30,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46941752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:30,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:30,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:59:30,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962343201] [2022-12-14 08:59:30,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:30,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:30,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:30,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:30,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:30,535 INFO L87 Difference]: Start difference. First operand 3732 states and 5452 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 08:59:33,140 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 08:59:34,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:34,413 INFO L93 Difference]: Finished difference Result 10031 states and 14542 transitions. [2022-12-14 08:59:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:59:34,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2022-12-14 08:59:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:34,443 INFO L225 Difference]: With dead ends: 10031 [2022-12-14 08:59:34,443 INFO L226 Difference]: Without dead ends: 6326 [2022-12-14 08:59:34,458 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 08:59:34,459 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 1937 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:34,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 5393 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 848 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 08:59:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6326 states. [2022-12-14 08:59:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6326 to 6298. [2022-12-14 08:59:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6298 states, 3739 states have (on average 1.3024872960684675) internal successors, (4870), 3862 states have internal predecessors, (4870), 2102 states have call successors, (2102), 457 states have call predecessors, (2102), 454 states have return successors, (2111), 2045 states have call predecessors, (2111), 2098 states have call successors, (2111) [2022-12-14 08:59:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 9083 transitions. [2022-12-14 08:59:34,689 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 9083 transitions. Word has length 153 [2022-12-14 08:59:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 6298 states and 9083 transitions. [2022-12-14 08:59:34,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 08:59:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 9083 transitions. [2022-12-14 08:59:34,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 08:59:34,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:34,691 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:34,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:59:34,692 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 08:59:34,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:34,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1654224686, now seen corresponding path program 1 times [2022-12-14 08:59:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:34,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661223598] [2022-12-14 08:59:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:34,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 08:59:34,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:34,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661223598] [2022-12-14 08:59:34,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661223598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:34,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:34,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:59:34,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691621940] [2022-12-14 08:59:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:34,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:34,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:34,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:34,906 INFO L87 Difference]: Start difference. First operand 6298 states and 9083 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 08:59:37,840 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 08:59:39,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:39,382 INFO L93 Difference]: Finished difference Result 18574 states and 26842 transitions. [2022-12-14 08:59:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:59:39,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 155 [2022-12-14 08:59:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:39,430 INFO L225 Difference]: With dead ends: 18574 [2022-12-14 08:59:39,430 INFO L226 Difference]: Without dead ends: 12303 [2022-12-14 08:59:39,449 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 08:59:39,450 INFO L413 NwaCegarLoop]: 3752 mSDtfsCounter, 2746 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 6185 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:39,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 6185 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 933 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 08:59:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12303 states. [2022-12-14 08:59:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12303 to 12269. [2022-12-14 08:59:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12269 states, 7311 states have (on average 1.305019833128163) internal successors, (9541), 7568 states have internal predecessors, (9541), 4064 states have call successors, (4064), 906 states have call predecessors, (4064), 891 states have return successors, (4139), 3924 states have call predecessors, (4139), 4060 states have call successors, (4139) [2022-12-14 08:59:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12269 states to 12269 states and 17744 transitions. [2022-12-14 08:59:39,960 INFO L78 Accepts]: Start accepts. Automaton has 12269 states and 17744 transitions. Word has length 155 [2022-12-14 08:59:39,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:39,960 INFO L495 AbstractCegarLoop]: Abstraction has 12269 states and 17744 transitions. [2022-12-14 08:59:39,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 08:59:39,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12269 states and 17744 transitions. [2022-12-14 08:59:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-14 08:59:39,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:39,962 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:39,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:59:39,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 08:59:39,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2078575225, now seen corresponding path program 1 times [2022-12-14 08:59:39,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:39,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209535001] [2022-12-14 08:59:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-12-14 08:59:40,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:40,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209535001] [2022-12-14 08:59:40,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209535001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:40,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:40,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:59:40,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922687142] [2022-12-14 08:59:40,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:40,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:40,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:40,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:40,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:40,172 INFO L87 Difference]: Start difference. First operand 12269 states and 17744 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 08:59:42,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:59:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:44,703 INFO L93 Difference]: Finished difference Result 24456 states and 35157 transitions. [2022-12-14 08:59:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:59:44,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-12-14 08:59:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:44,743 INFO L225 Difference]: With dead ends: 24456 [2022-12-14 08:59:44,743 INFO L226 Difference]: Without dead ends: 12214 [2022-12-14 08:59:44,774 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 08:59:44,775 INFO L413 NwaCegarLoop]: 3928 mSDtfsCounter, 2131 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 6383 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:44,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 6383 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1068 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 08:59:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12214 states. [2022-12-14 08:59:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12214 to 12180. [2022-12-14 08:59:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12180 states, 7209 states have (on average 1.3040643639894576) internal successors, (9401), 7474 states have internal predecessors, (9401), 3932 states have call successors, (3932), 1051 states have call predecessors, (3932), 1036 states have return successors, (4002), 3769 states have call predecessors, (4002), 3928 states have call successors, (4002) [2022-12-14 08:59:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12180 states to 12180 states and 17335 transitions. [2022-12-14 08:59:45,249 INFO L78 Accepts]: Start accepts. Automaton has 12180 states and 17335 transitions. Word has length 156 [2022-12-14 08:59:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:45,249 INFO L495 AbstractCegarLoop]: Abstraction has 12180 states and 17335 transitions. [2022-12-14 08:59:45,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 08:59:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 12180 states and 17335 transitions. [2022-12-14 08:59:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-14 08:59:45,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:45,255 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-12-14 08:59:45,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:59:45,255 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 08:59:45,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 718786735, now seen corresponding path program 1 times [2022-12-14 08:59:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:45,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171047443] [2022-12-14 08:59:45,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2022-12-14 08:59:45,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:45,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171047443] [2022-12-14 08:59:45,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171047443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:45,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:45,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:59:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063407223] [2022-12-14 08:59:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:45,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:59:45,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:59:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:59:45,856 INFO L87 Difference]: Start difference. First operand 12180 states and 17335 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 08:59:48,703 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 08:59:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:50,286 INFO L93 Difference]: Finished difference Result 12912 states and 18226 transitions. [2022-12-14 08:59:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:59:50,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2022-12-14 08:59:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:50,322 INFO L225 Difference]: With dead ends: 12912 [2022-12-14 08:59:50,322 INFO L226 Difference]: Without dead ends: 12910 [2022-12-14 08:59:50,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:59:50,329 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 2677 mSDsluCounter, 6103 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 8791 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:50,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 8791 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1348 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 08:59:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12910 states. [2022-12-14 08:59:50,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12910 to 12906. [2022-12-14 08:59:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12906 states, 7609 states have (on average 1.2976738073334209) internal successors, (9874), 7896 states have internal predecessors, (9874), 4138 states have call successors, (4138), 1168 states have call predecessors, (4138), 1156 states have return successors, (4210), 3967 states have call predecessors, (4210), 4134 states have call successors, (4210) [2022-12-14 08:59:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12906 states to 12906 states and 18222 transitions. [2022-12-14 08:59:50,769 INFO L78 Accepts]: Start accepts. Automaton has 12906 states and 18222 transitions. Word has length 196 [2022-12-14 08:59:50,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:50,769 INFO L495 AbstractCegarLoop]: Abstraction has 12906 states and 18222 transitions. [2022-12-14 08:59:50,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 08:59:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 12906 states and 18222 transitions. [2022-12-14 08:59:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 08:59:50,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:50,773 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 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] [2022-12-14 08:59:50,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:59:50,773 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 08:59:50,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:50,774 INFO L85 PathProgramCache]: Analyzing trace with hash 958264310, now seen corresponding path program 1 times [2022-12-14 08:59:50,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:50,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367151714] [2022-12-14 08:59:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:50,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-12-14 08:59:51,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:51,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367151714] [2022-12-14 08:59:51,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367151714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:51,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:51,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:59:51,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886153945] [2022-12-14 08:59:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:51,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:59:51,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:51,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:59:51,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:59:51,138 INFO L87 Difference]: Start difference. First operand 12906 states and 18222 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 08:59:54,043 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 08:59:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:55,749 INFO L93 Difference]: Finished difference Result 12934 states and 18241 transitions. [2022-12-14 08:59:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:59:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 202 [2022-12-14 08:59:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:55,786 INFO L225 Difference]: With dead ends: 12934 [2022-12-14 08:59:55,786 INFO L226 Difference]: Without dead ends: 12932 [2022-12-14 08:59:55,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:59:55,792 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:55,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 08:59:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12932 states. [2022-12-14 08:59:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12932 to 12928. [2022-12-14 08:59:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12928 states, 7623 states have (on average 1.2972582972582973) internal successors, (9889), 7910 states have internal predecessors, (9889), 4138 states have call successors, (4138), 1176 states have call predecessors, (4138), 1164 states have return successors, (4210), 3967 states have call predecessors, (4210), 4134 states have call successors, (4210) [2022-12-14 08:59:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12928 states to 12928 states and 18237 transitions. [2022-12-14 08:59:56,241 INFO L78 Accepts]: Start accepts. Automaton has 12928 states and 18237 transitions. Word has length 202 [2022-12-14 08:59:56,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:56,241 INFO L495 AbstractCegarLoop]: Abstraction has 12928 states and 18237 transitions. [2022-12-14 08:59:56,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 08:59:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 12928 states and 18237 transitions. [2022-12-14 08:59:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 08:59:56,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:56,245 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-12-14 08:59:56,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:59:56,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 08:59:56,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:56,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1973578042, now seen corresponding path program 1 times [2022-12-14 08:59:56,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:56,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304889812] [2022-12-14 08:59:56,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:56,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2022-12-14 08:59:56,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:56,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304889812] [2022-12-14 08:59:56,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304889812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:56,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:56,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:59:56,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668734275] [2022-12-14 08:59:56,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:56,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:56,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:56,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:56,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:56,455 INFO L87 Difference]: Start difference. First operand 12928 states and 18237 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 08:59:59,088 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 09:00:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:00,725 INFO L93 Difference]: Finished difference Result 30351 states and 42799 transitions. [2022-12-14 09:00:00,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 205 [2022-12-14 09:00:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:00,779 INFO L225 Difference]: With dead ends: 30351 [2022-12-14 09:00:00,779 INFO L226 Difference]: Without dead ends: 17653 [2022-12-14 09:00:00,812 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 09:00:00,813 INFO L413 NwaCegarLoop]: 3688 mSDtfsCounter, 2128 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 6137 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:00,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 6137 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1014 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 09:00:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17653 states. [2022-12-14 09:00:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17653 to 17611. [2022-12-14 09:00:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17611 states, 10384 states have (on average 1.2989214175654853) internal successors, (13488), 10785 states have internal predecessors, (13488), 5606 states have call successors, (5606), 1637 states have call predecessors, (5606), 1618 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17611 states to 17611 states and 24800 transitions. [2022-12-14 09:00:01,492 INFO L78 Accepts]: Start accepts. Automaton has 17611 states and 24800 transitions. Word has length 205 [2022-12-14 09:00:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:01,493 INFO L495 AbstractCegarLoop]: Abstraction has 17611 states and 24800 transitions. [2022-12-14 09:00:01,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 09:00:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 17611 states and 24800 transitions. [2022-12-14 09:00:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-14 09:00:01,496 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:01,497 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:01,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:00:01,497 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:00:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:01,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2127583322, now seen corresponding path program 1 times [2022-12-14 09:00:01,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:01,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780142138] [2022-12-14 09:00:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2022-12-14 09:00:01,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:01,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780142138] [2022-12-14 09:00:01,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780142138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:01,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:01,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:01,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008901807] [2022-12-14 09:00:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:01,915 INFO L87 Difference]: Start difference. First operand 17611 states and 24800 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:00:04,514 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 09:00:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:07,007 INFO L93 Difference]: Finished difference Result 17621 states and 24807 transitions. [2022-12-14 09:00:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:07,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2022-12-14 09:00:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:07,060 INFO L225 Difference]: With dead ends: 17621 [2022-12-14 09:00:07,060 INFO L226 Difference]: Without dead ends: 17619 [2022-12-14 09:00:07,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:07,066 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2696 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:07,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2696 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 09:00:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17619 states. [2022-12-14 09:00:07,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17619 to 17615. [2022-12-14 09:00:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17615 states, 10387 states have (on average 1.2988350823144315) internal successors, (13491), 10788 states have internal predecessors, (13491), 5606 states have call successors, (5606), 1638 states have call predecessors, (5606), 1619 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17615 states to 17615 states and 24803 transitions. [2022-12-14 09:00:07,781 INFO L78 Accepts]: Start accepts. Automaton has 17615 states and 24803 transitions. Word has length 207 [2022-12-14 09:00:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:07,781 INFO L495 AbstractCegarLoop]: Abstraction has 17615 states and 24803 transitions. [2022-12-14 09:00:07,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:00:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 17615 states and 24803 transitions. [2022-12-14 09:00:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-14 09:00:07,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:07,785 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 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] [2022-12-14 09:00:07,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:00:07,786 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 09:00:07,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:07,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1088615425, now seen corresponding path program 1 times [2022-12-14 09:00:07,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:07,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564902814] [2022-12-14 09:00:07,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:07,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-12-14 09:00:08,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:08,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564902814] [2022-12-14 09:00:08,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564902814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:08,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:08,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785328090] [2022-12-14 09:00:08,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:08,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:08,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:08,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:08,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:08,114 INFO L87 Difference]: Start difference. First operand 17615 states and 24803 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:00:10,735 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 09:00:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:13,285 INFO L93 Difference]: Finished difference Result 17625 states and 24810 transitions. [2022-12-14 09:00:13,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:13,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 211 [2022-12-14 09:00:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:13,330 INFO L225 Difference]: With dead ends: 17625 [2022-12-14 09:00:13,330 INFO L226 Difference]: Without dead ends: 17623 [2022-12-14 09:00:13,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:13,338 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:13,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:00:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17623 states. [2022-12-14 09:00:13,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17623 to 17619. [2022-12-14 09:00:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17619 states, 10390 states have (on average 1.2987487969201155) internal successors, (13494), 10791 states have internal predecessors, (13494), 5606 states have call successors, (5606), 1639 states have call predecessors, (5606), 1620 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17619 states to 17619 states and 24806 transitions. [2022-12-14 09:00:14,041 INFO L78 Accepts]: Start accepts. Automaton has 17619 states and 24806 transitions. Word has length 211 [2022-12-14 09:00:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:14,041 INFO L495 AbstractCegarLoop]: Abstraction has 17619 states and 24806 transitions. [2022-12-14 09:00:14,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:00:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 17619 states and 24806 transitions. [2022-12-14 09:00:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 09:00:14,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:14,045 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 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] [2022-12-14 09:00:14,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:00:14,045 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 09:00:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1383124110, now seen corresponding path program 1 times [2022-12-14 09:00:14,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:14,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569833131] [2022-12-14 09:00:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:14,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-12-14 09:00:14,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:14,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569833131] [2022-12-14 09:00:14,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569833131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:14,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:14,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:14,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714647771] [2022-12-14 09:00:14,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:14,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:14,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:14,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:14,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:14,372 INFO L87 Difference]: Start difference. First operand 17619 states and 24806 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:00:17,127 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 09:00:19,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:19,074 INFO L93 Difference]: Finished difference Result 17629 states and 24813 transitions. [2022-12-14 09:00:19,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:19,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 215 [2022-12-14 09:00:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:19,115 INFO L225 Difference]: With dead ends: 17629 [2022-12-14 09:00:19,115 INFO L226 Difference]: Without dead ends: 17627 [2022-12-14 09:00:19,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:19,122 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2685 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:19,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 09:00:19,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17627 states. [2022-12-14 09:00:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17627 to 17623. [2022-12-14 09:00:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17623 states, 10393 states have (on average 1.298662561339363) internal successors, (13497), 10794 states have internal predecessors, (13497), 5606 states have call successors, (5606), 1640 states have call predecessors, (5606), 1621 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17623 states to 17623 states and 24809 transitions. [2022-12-14 09:00:19,873 INFO L78 Accepts]: Start accepts. Automaton has 17623 states and 24809 transitions. Word has length 215 [2022-12-14 09:00:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:19,873 INFO L495 AbstractCegarLoop]: Abstraction has 17623 states and 24809 transitions. [2022-12-14 09:00:19,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 09:00:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 17623 states and 24809 transitions. [2022-12-14 09:00:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 09:00:19,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:19,877 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:00:19,877 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 09:00:19,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:19,878 INFO L85 PathProgramCache]: Analyzing trace with hash 665927798, now seen corresponding path program 1 times [2022-12-14 09:00:19,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:19,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441118386] [2022-12-14 09:00:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2022-12-14 09:00:20,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:20,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441118386] [2022-12-14 09:00:20,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441118386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:20,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:20,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:20,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510310756] [2022-12-14 09:00:20,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:20,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:20,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:20,172 INFO L87 Difference]: Start difference. First operand 17623 states and 24809 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:00:22,853 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 09:00:25,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:25,300 INFO L93 Difference]: Finished difference Result 17633 states and 24816 transitions. [2022-12-14 09:00:25,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:25,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2022-12-14 09:00:25,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:25,345 INFO L225 Difference]: With dead ends: 17633 [2022-12-14 09:00:25,345 INFO L226 Difference]: Without dead ends: 17631 [2022-12-14 09:00:25,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:25,353 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:25,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 09:00:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17631 states. [2022-12-14 09:00:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17631 to 17627. [2022-12-14 09:00:26,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 10396 states have (on average 1.2985763755290496) internal successors, (13500), 10797 states have internal predecessors, (13500), 5606 states have call successors, (5606), 1641 states have call predecessors, (5606), 1622 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 24812 transitions. [2022-12-14 09:00:26,175 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 24812 transitions. Word has length 222 [2022-12-14 09:00:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:26,175 INFO L495 AbstractCegarLoop]: Abstraction has 17627 states and 24812 transitions. [2022-12-14 09:00:26,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:00:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 24812 transitions. [2022-12-14 09:00:26,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 09:00:26,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:26,180 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:26,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:00:26,180 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 09:00:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1062025946, now seen corresponding path program 1 times [2022-12-14 09:00:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:26,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104927020] [2022-12-14 09:00:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-12-14 09:00:26,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104927020] [2022-12-14 09:00:26,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104927020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:26,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:26,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:26,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806229913] [2022-12-14 09:00:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:26,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:26,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:26,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:26,447 INFO L87 Difference]: Start difference. First operand 17627 states and 24812 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:00:29,091 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 09:00:31,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:31,155 INFO L93 Difference]: Finished difference Result 17637 states and 24819 transitions. [2022-12-14 09:00:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:31,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 227 [2022-12-14 09:00:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:31,197 INFO L225 Difference]: With dead ends: 17637 [2022-12-14 09:00:31,197 INFO L226 Difference]: Without dead ends: 17635 [2022-12-14 09:00:31,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:31,205 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:31,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2692 Valid, 8757 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:00:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17635 states. [2022-12-14 09:00:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17635 to 17631. [2022-12-14 09:00:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17631 states, 10399 states have (on average 1.2984902394461006) internal successors, (13503), 10800 states have internal predecessors, (13503), 5606 states have call successors, (5606), 1642 states have call predecessors, (5606), 1623 states have return successors, (5706), 5365 states have call predecessors, (5706), 5602 states have call successors, (5706) [2022-12-14 09:00:32,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17631 states to 17631 states and 24815 transitions. [2022-12-14 09:00:32,232 INFO L78 Accepts]: Start accepts. Automaton has 17631 states and 24815 transitions. Word has length 227 [2022-12-14 09:00:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:32,233 INFO L495 AbstractCegarLoop]: Abstraction has 17631 states and 24815 transitions. [2022-12-14 09:00:32,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:00:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 17631 states and 24815 transitions. [2022-12-14 09:00:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 09:00:32,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:32,236 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-12-14 09:00:32,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:00:32,236 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 09:00:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:32,236 INFO L85 PathProgramCache]: Analyzing trace with hash -452701730, now seen corresponding path program 1 times [2022-12-14 09:00:32,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:32,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499896389] [2022-12-14 09:00:32,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-12-14 09:00:32,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:32,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499896389] [2022-12-14 09:00:32,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499896389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:32,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:32,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:32,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316052481] [2022-12-14 09:00:32,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:32,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:32,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:32,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:32,492 INFO L87 Difference]: Start difference. First operand 17631 states and 24815 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:00:35,154 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 09:00:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,751 INFO L93 Difference]: Finished difference Result 28541 states and 40190 transitions. [2022-12-14 09:00:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:00:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 230 [2022-12-14 09:00:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,861 INFO L225 Difference]: With dead ends: 28541 [2022-12-14 09:00:38,862 INFO L226 Difference]: Without dead ends: 28539 [2022-12-14 09:00:38,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:38,871 INFO L413 NwaCegarLoop]: 3091 mSDtfsCounter, 1662 mSDsluCounter, 8514 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 11605 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 11605 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1847 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 09:00:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28539 states. [2022-12-14 09:00:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28539 to 28521. [2022-12-14 09:00:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28521 states, 16846 states have (on average 1.310637540068859) internal successors, (22079), 17603 states have internal predecessors, (22079), 8906 states have call successors, (8906), 2854 states have call predecessors, (8906), 2766 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-12-14 09:00:40,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28521 states to 28521 states and 40173 transitions. [2022-12-14 09:00:40,321 INFO L78 Accepts]: Start accepts. Automaton has 28521 states and 40173 transitions. Word has length 230 [2022-12-14 09:00:40,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:40,322 INFO L495 AbstractCegarLoop]: Abstraction has 28521 states and 40173 transitions. [2022-12-14 09:00:40,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:00:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 28521 states and 40173 transitions. [2022-12-14 09:00:40,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-14 09:00:40,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:40,325 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 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] [2022-12-14 09:00:40,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:00:40,325 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 09:00:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1846609422, now seen corresponding path program 1 times [2022-12-14 09:00:40,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:40,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571937735] [2022-12-14 09:00:40,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:40,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2022-12-14 09:00:40,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:40,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571937735] [2022-12-14 09:00:40,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571937735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:40,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:40,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:40,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246599284] [2022-12-14 09:00:40,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:40,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:40,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:40,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:40,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:40,641 INFO L87 Difference]: Start difference. First operand 28521 states and 40173 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:00:43,339 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 09:00:46,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:46,165 INFO L93 Difference]: Finished difference Result 28535 states and 40184 transitions. [2022-12-14 09:00:46,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:46,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 235 [2022-12-14 09:00:46,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:46,238 INFO L225 Difference]: With dead ends: 28535 [2022-12-14 09:00:46,238 INFO L226 Difference]: Without dead ends: 28533 [2022-12-14 09:00:46,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:46,250 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2685 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:46,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:00:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28533 states. [2022-12-14 09:00:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28533 to 28529. [2022-12-14 09:00:47,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28529 states, 16852 states have (on average 1.3105269404225017) internal successors, (22085), 17609 states have internal predecessors, (22085), 8906 states have call successors, (8906), 2856 states have call predecessors, (8906), 2768 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-12-14 09:00:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28529 states to 28529 states and 40179 transitions. [2022-12-14 09:00:47,815 INFO L78 Accepts]: Start accepts. Automaton has 28529 states and 40179 transitions. Word has length 235 [2022-12-14 09:00:47,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:47,816 INFO L495 AbstractCegarLoop]: Abstraction has 28529 states and 40179 transitions. [2022-12-14 09:00:47,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:00:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 28529 states and 40179 transitions. [2022-12-14 09:00:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-14 09:00:47,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:47,819 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 10, 9, 9, 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] [2022-12-14 09:00:47,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:00:47,819 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 09:00:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:47,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1294328193, now seen corresponding path program 1 times [2022-12-14 09:00:47,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:47,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907450516] [2022-12-14 09:00:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-12-14 09:00:48,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:48,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907450516] [2022-12-14 09:00:48,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907450516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:48,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:48,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:48,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269439356] [2022-12-14 09:00:48,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:48,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:48,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:48,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:48,123 INFO L87 Difference]: Start difference. First operand 28529 states and 40179 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:00:50,772 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 09:00:53,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:53,499 INFO L93 Difference]: Finished difference Result 28543 states and 40190 transitions. [2022-12-14 09:00:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:00:53,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 241 [2022-12-14 09:00:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:53,594 INFO L225 Difference]: With dead ends: 28543 [2022-12-14 09:00:53,594 INFO L226 Difference]: Without dead ends: 28541 [2022-12-14 09:00:53,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:53,609 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:53,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:00:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28541 states. [2022-12-14 09:00:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28541 to 28537. [2022-12-14 09:00:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28537 states, 16858 states have (on average 1.310416419504093) internal successors, (22091), 17615 states have internal predecessors, (22091), 8906 states have call successors, (8906), 2858 states have call predecessors, (8906), 2770 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-12-14 09:00:55,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28537 states to 28537 states and 40185 transitions. [2022-12-14 09:00:55,322 INFO L78 Accepts]: Start accepts. Automaton has 28537 states and 40185 transitions. Word has length 241 [2022-12-14 09:00:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:55,322 INFO L495 AbstractCegarLoop]: Abstraction has 28537 states and 40185 transitions. [2022-12-14 09:00:55,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:00:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 28537 states and 40185 transitions. [2022-12-14 09:00:55,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-14 09:00:55,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:55,326 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 11, 10, 10, 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] [2022-12-14 09:00:55,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:00:55,326 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 09:00:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash 835643311, now seen corresponding path program 1 times [2022-12-14 09:00:55,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:55,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445726317] [2022-12-14 09:00:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:55,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-12-14 09:00:55,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:55,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445726317] [2022-12-14 09:00:55,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445726317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:55,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:55,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:00:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935404591] [2022-12-14 09:00:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:55,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:00:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:55,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:00:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:55,572 INFO L87 Difference]: Start difference. First operand 28537 states and 40185 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:00:58,240 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 09:01:01,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:01,370 INFO L93 Difference]: Finished difference Result 28551 states and 40196 transitions. [2022-12-14 09:01:01,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:01:01,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 246 [2022-12-14 09:01:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:01,447 INFO L225 Difference]: With dead ends: 28551 [2022-12-14 09:01:01,447 INFO L226 Difference]: Without dead ends: 28549 [2022-12-14 09:01:01,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:01,459 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:01,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:01:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28549 states. [2022-12-14 09:01:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28549 to 28545. [2022-12-14 09:01:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28545 states, 16864 states have (on average 1.3103059772296015) internal successors, (22097), 17621 states have internal predecessors, (22097), 8906 states have call successors, (8906), 2860 states have call predecessors, (8906), 2772 states have return successors, (9188), 8306 states have call predecessors, (9188), 8898 states have call successors, (9188) [2022-12-14 09:01:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28545 states to 28545 states and 40191 transitions. [2022-12-14 09:01:03,240 INFO L78 Accepts]: Start accepts. Automaton has 28545 states and 40191 transitions. Word has length 246 [2022-12-14 09:01:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:03,240 INFO L495 AbstractCegarLoop]: Abstraction has 28545 states and 40191 transitions. [2022-12-14 09:01:03,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:01:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 28545 states and 40191 transitions. [2022-12-14 09:01:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-14 09:01:03,244 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:03,244 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 6, 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] [2022-12-14 09:01:03,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:01:03,244 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:01:03,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:03,245 INFO L85 PathProgramCache]: Analyzing trace with hash -576216112, now seen corresponding path program 1 times [2022-12-14 09:01:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:03,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269752792] [2022-12-14 09:01:03,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:03,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:03,640 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-12-14 09:01:03,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:03,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269752792] [2022-12-14 09:01:03,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269752792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:03,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:03,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:01:03,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066913432] [2022-12-14 09:01:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:03,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:01:03,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:03,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:01:03,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:03,642 INFO L87 Difference]: Start difference. First operand 28545 states and 40191 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 09:01:06,964 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 09:01:11,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:11,571 INFO L93 Difference]: Finished difference Result 57148 states and 80697 transitions. [2022-12-14 09:01:11,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:01:11,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 256 [2022-12-14 09:01:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:11,660 INFO L225 Difference]: With dead ends: 57148 [2022-12-14 09:01:11,660 INFO L226 Difference]: Without dead ends: 28833 [2022-12-14 09:01:11,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:01:11,735 INFO L413 NwaCegarLoop]: 2480 mSDtfsCounter, 14 mSDsluCounter, 14845 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17325 SdHoareTripleChecker+Invalid, 2919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:11,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17325 Invalid, 2919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2910 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 09:01:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28833 states. [2022-12-14 09:01:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28833 to 28653. [2022-12-14 09:01:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28653 states, 16936 states have (on average 1.3089867737364194) internal successors, (22169), 17657 states have internal predecessors, (22169), 8942 states have call successors, (8942), 2860 states have call predecessors, (8942), 2772 states have return successors, (9224), 8342 states have call predecessors, (9224), 8934 states have call successors, (9224) [2022-12-14 09:01:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28653 states to 28653 states and 40335 transitions. [2022-12-14 09:01:13,564 INFO L78 Accepts]: Start accepts. Automaton has 28653 states and 40335 transitions. Word has length 256 [2022-12-14 09:01:13,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:13,564 INFO L495 AbstractCegarLoop]: Abstraction has 28653 states and 40335 transitions. [2022-12-14 09:01:13,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 09:01:13,564 INFO L276 IsEmpty]: Start isEmpty. Operand 28653 states and 40335 transitions. [2022-12-14 09:01:13,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-12-14 09:01:13,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:13,568 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 12, 11, 11, 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] [2022-12-14 09:01:13,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:01:13,568 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 09:01:13,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:13,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1517659649, now seen corresponding path program 1 times [2022-12-14 09:01:13,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:13,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495353544] [2022-12-14 09:01:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:13,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2022-12-14 09:01:13,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495353544] [2022-12-14 09:01:13,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495353544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:13,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:13,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:01:13,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605114014] [2022-12-14 09:01:13,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:13,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:01:13,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:13,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:01:13,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:01:13,824 INFO L87 Difference]: Start difference. First operand 28653 states and 40335 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:01:16,529 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 09:01:19,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:19,372 INFO L93 Difference]: Finished difference Result 28667 states and 40346 transitions. [2022-12-14 09:01:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:01:19,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 251 [2022-12-14 09:01:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:19,448 INFO L225 Difference]: With dead ends: 28667 [2022-12-14 09:01:19,448 INFO L226 Difference]: Without dead ends: 28663 [2022-12-14 09:01:19,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:19,461 INFO L413 NwaCegarLoop]: 2687 mSDtfsCounter, 2684 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 8757 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:19,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 8757 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1344 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:01:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28663 states. [2022-12-14 09:01:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28663 to 28659. [2022-12-14 09:01:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28659 states, 16941 states have (on average 1.308836550380733) internal successors, (22173), 17661 states have internal predecessors, (22173), 8942 states have call successors, (8942), 2862 states have call predecessors, (8942), 2773 states have return successors, (9224), 8342 states have call predecessors, (9224), 8934 states have call successors, (9224) [2022-12-14 09:01:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28659 states to 28659 states and 40339 transitions. [2022-12-14 09:01:21,375 INFO L78 Accepts]: Start accepts. Automaton has 28659 states and 40339 transitions. Word has length 251 [2022-12-14 09:01:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:21,376 INFO L495 AbstractCegarLoop]: Abstraction has 28659 states and 40339 transitions. [2022-12-14 09:01:21,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:01:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand 28659 states and 40339 transitions. [2022-12-14 09:01:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 09:01:21,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:21,380 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:21,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:01:21,380 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:01:21,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1771550603, now seen corresponding path program 1 times [2022-12-14 09:01:21,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:21,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926388870] [2022-12-14 09:01:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:21,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:21,880 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-12-14 09:01:21,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:21,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926388870] [2022-12-14 09:01:21,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926388870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:21,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:21,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:01:21,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563850368] [2022-12-14 09:01:21,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:21,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:01:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:01:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:01:21,883 INFO L87 Difference]: Start difference. First operand 28659 states and 40339 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:01:24,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:01:28,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:28,503 INFO L93 Difference]: Finished difference Result 28703 states and 40379 transitions. [2022-12-14 09:01:28,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:01:28,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 260 [2022-12-14 09:01:28,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:28,579 INFO L225 Difference]: With dead ends: 28703 [2022-12-14 09:01:28,579 INFO L226 Difference]: Without dead ends: 28701 [2022-12-14 09:01:28,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:28,590 INFO L413 NwaCegarLoop]: 3090 mSDtfsCounter, 1657 mSDsluCounter, 8529 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 11619 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:28,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 11619 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1840 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:01:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28701 states. [2022-12-14 09:01:30,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28701 to 28683. [2022-12-14 09:01:30,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28683 states, 16959 states have (on average 1.3081549619670971) internal successors, (22185), 17679 states have internal predecessors, (22185), 8942 states have call successors, (8942), 2868 states have call predecessors, (8942), 2779 states have return successors, (9224), 8342 states have call predecessors, (9224), 8934 states have call successors, (9224) [2022-12-14 09:01:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28683 states to 28683 states and 40351 transitions. [2022-12-14 09:01:30,473 INFO L78 Accepts]: Start accepts. Automaton has 28683 states and 40351 transitions. Word has length 260 [2022-12-14 09:01:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:30,473 INFO L495 AbstractCegarLoop]: Abstraction has 28683 states and 40351 transitions. [2022-12-14 09:01:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:01:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 28683 states and 40351 transitions. [2022-12-14 09:01:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-14 09:01:30,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:30,477 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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] [2022-12-14 09:01:30,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:01:30,478 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 09:01:30,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:30,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1851794095, now seen corresponding path program 1 times [2022-12-14 09:01:30,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:30,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876653966] [2022-12-14 09:01:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2022-12-14 09:01:30,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:30,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876653966] [2022-12-14 09:01:30,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876653966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:30,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:30,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:01:30,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926943158] [2022-12-14 09:01:30,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:30,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:01:30,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:01:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:01:30,729 INFO L87 Difference]: Start difference. First operand 28683 states and 40351 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:01:33,509 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 09:01:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:36,343 INFO L93 Difference]: Finished difference Result 28693 states and 40358 transitions. [2022-12-14 09:01:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:01:36,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 256 [2022-12-14 09:01:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:36,414 INFO L225 Difference]: With dead ends: 28693 [2022-12-14 09:01:36,414 INFO L226 Difference]: Without dead ends: 28534 [2022-12-14 09:01:36,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:01:36,425 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 2684 mSDsluCounter, 6072 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 8760 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:36,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 8760 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1341 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:01:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28534 states. [2022-12-14 09:01:38,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28534 to 28530. [2022-12-14 09:01:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28530 states, 16880 states have (on average 1.3074052132701421) internal successors, (22069), 17568 states have internal predecessors, (22069), 8897 states have call successors, (8897), 2850 states have call predecessors, (8897), 2750 states have return successors, (9073), 8318 states have call predecessors, (9073), 8869 states have call successors, (9073) [2022-12-14 09:01:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28530 states to 28530 states and 40039 transitions. [2022-12-14 09:01:38,429 INFO L78 Accepts]: Start accepts. Automaton has 28530 states and 40039 transitions. Word has length 256 [2022-12-14 09:01:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:38,430 INFO L495 AbstractCegarLoop]: Abstraction has 28530 states and 40039 transitions. [2022-12-14 09:01:38,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:01:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 28530 states and 40039 transitions. [2022-12-14 09:01:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 09:01:38,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:38,435 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:38,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:01:38,436 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 09:01:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash -98605004, now seen corresponding path program 1 times [2022-12-14 09:01:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:38,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690176329] [2022-12-14 09:01:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:38,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-12-14 09:01:38,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:38,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690176329] [2022-12-14 09:01:38,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690176329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:38,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:38,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:01:38,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131759860] [2022-12-14 09:01:38,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:38,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:01:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:01:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:01:38,899 INFO L87 Difference]: Start difference. First operand 28530 states and 40039 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:01:41,798 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 09:01:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:44,863 INFO L93 Difference]: Finished difference Result 29850 states and 41448 transitions. [2022-12-14 09:01:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:01:44,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 292 [2022-12-14 09:01:44,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:44,930 INFO L225 Difference]: With dead ends: 29850 [2022-12-14 09:01:44,930 INFO L226 Difference]: Without dead ends: 28694 [2022-12-14 09:01:44,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:01:44,943 INFO L413 NwaCegarLoop]: 2645 mSDtfsCounter, 1304 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 9430 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:44,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 9430 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1611 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:01:44,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28694 states. [2022-12-14 09:01:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28694 to 28643. [2022-12-14 09:01:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28643 states, 16931 states have (on average 1.30423483550883) internal successors, (22082), 17604 states have internal predecessors, (22082), 8807 states have call successors, (8807), 2976 states have call predecessors, (8807), 2902 states have return successors, (8979), 8264 states have call predecessors, (8979), 8775 states have call successors, (8979) [2022-12-14 09:01:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28643 states to 28643 states and 39868 transitions. [2022-12-14 09:01:46,898 INFO L78 Accepts]: Start accepts. Automaton has 28643 states and 39868 transitions. Word has length 292 [2022-12-14 09:01:46,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:46,898 INFO L495 AbstractCegarLoop]: Abstraction has 28643 states and 39868 transitions. [2022-12-14 09:01:46,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:01:46,898 INFO L276 IsEmpty]: Start isEmpty. Operand 28643 states and 39868 transitions. [2022-12-14 09:01:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-12-14 09:01:46,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:46,912 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:46,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:01:46,913 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 09:01:46,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:46,913 INFO L85 PathProgramCache]: Analyzing trace with hash 716204229, now seen corresponding path program 1 times [2022-12-14 09:01:46,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:46,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440080413] [2022-12-14 09:01:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:46,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2022-12-14 09:01:47,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:47,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440080413] [2022-12-14 09:01:47,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440080413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:47,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:47,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:01:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585344934] [2022-12-14 09:01:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:47,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:01:47,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:01:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:01:47,209 INFO L87 Difference]: Start difference. First operand 28643 states and 39868 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-12-14 09:01:50,009 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 09:01:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:52,095 INFO L93 Difference]: Finished difference Result 50970 states and 71170 transitions. [2022-12-14 09:01:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:01:52,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 424 [2022-12-14 09:01:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:52,152 INFO L225 Difference]: With dead ends: 50970 [2022-12-14 09:01:52,152 INFO L226 Difference]: Without dead ends: 22557 [2022-12-14 09:01:52,204 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 09:01:52,204 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 2648 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:52,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 3348 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 09:01:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22557 states. [2022-12-14 09:01:53,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22557 to 22555. [2022-12-14 09:01:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22555 states, 13499 states have (on average 1.3086895325579673) internal successors, (17666), 14052 states have internal predecessors, (17666), 6929 states have call successors, (6929), 2198 states have call predecessors, (6929), 2124 states have return successors, (7029), 6482 states have call predecessors, (7029), 6897 states have call successors, (7029) [2022-12-14 09:01:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22555 states to 22555 states and 31624 transitions. [2022-12-14 09:01:53,838 INFO L78 Accepts]: Start accepts. Automaton has 22555 states and 31624 transitions. Word has length 424 [2022-12-14 09:01:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:01:53,839 INFO L495 AbstractCegarLoop]: Abstraction has 22555 states and 31624 transitions. [2022-12-14 09:01:53,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-12-14 09:01:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 22555 states and 31624 transitions. [2022-12-14 09:01:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-12-14 09:01:53,852 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:01:53,853 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 12, 12, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:01:53,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:01:53,853 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:01:53,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:01:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2099616813, now seen corresponding path program 1 times [2022-12-14 09:01:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:01:53,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32889823] [2022-12-14 09:01:53,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:01:53,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:01:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:01:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-12-14 09:01:54,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:01:54,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32889823] [2022-12-14 09:01:54,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32889823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:01:54,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:01:54,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:01:54,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960205140] [2022-12-14 09:01:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:01:54,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:01:54,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:01:54,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:01:54,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:01:54,255 INFO L87 Difference]: Start difference. First operand 22555 states and 31624 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 09:01:57,328 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 09:01:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:01:59,517 INFO L93 Difference]: Finished difference Result 44880 states and 62966 transitions. [2022-12-14 09:01:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:01:59,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 518 [2022-12-14 09:01:59,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:01:59,576 INFO L225 Difference]: With dead ends: 44880 [2022-12-14 09:01:59,577 INFO L226 Difference]: Without dead ends: 22611 [2022-12-14 09:01:59,621 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 09:01:59,621 INFO L413 NwaCegarLoop]: 2436 mSDtfsCounter, 7 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:01:59,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4857 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 813 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 09:01:59,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22611 states. [2022-12-14 09:02:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22611 to 22573. [2022-12-14 09:02:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22573 states, 13517 states have (on average 1.3082784641562477) internal successors, (17684), 14070 states have internal predecessors, (17684), 6929 states have call successors, (6929), 2198 states have call predecessors, (6929), 2124 states have return successors, (7029), 6482 states have call predecessors, (7029), 6897 states have call successors, (7029) [2022-12-14 09:02:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22573 states to 22573 states and 31642 transitions. [2022-12-14 09:02:01,568 INFO L78 Accepts]: Start accepts. Automaton has 22573 states and 31642 transitions. Word has length 518 [2022-12-14 09:02:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:02:01,569 INFO L495 AbstractCegarLoop]: Abstraction has 22573 states and 31642 transitions. [2022-12-14 09:02:01,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 09:02:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 22573 states and 31642 transitions. [2022-12-14 09:02:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-12-14 09:02:01,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:02:01,582 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 12, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:02:01,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:02:01,583 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 09:02:01,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:02:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash -857530900, now seen corresponding path program 1 times [2022-12-14 09:02:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:02:01,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391967392] [2022-12-14 09:02:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:02:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:02:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:02:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2022-12-14 09:02:02,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:02:02,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391967392] [2022-12-14 09:02:02,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391967392] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:02:02,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622241008] [2022-12-14 09:02:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:02:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:02:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:02:02,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:02:02,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7fdd48-ed51-4b0c-9113-9841fe444541/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:02:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:02:04,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 5820 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:02:04,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:02:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 205 proven. 1 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2022-12-14 09:02:04,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:02:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-12-14 09:02:04,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622241008] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:02:04,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1890950205] [2022-12-14 09:02:04,579 INFO L159 IcfgInterpreter]: Started Sifa with 261 locations of interest [2022-12-14 09:02:04,579 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:02:04,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:02:04,590 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:02:04,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:07:11,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 09:07:11,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:07:26,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:26,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:26,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:26,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:33,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:33,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:34,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:07:34,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:17,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:17,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:17,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:17,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:24,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:24,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:24,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:24,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:51,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:52,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:52,222 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:11:52,226 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:11:57,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:57,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:11:58,055 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:11:58,058 WARN L207 Elim1Store]: Array PQE input equivalent to false