./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/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 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 --- 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 13:17:23,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:17:23,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:17:23,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:17:23,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:17:23,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:17:23,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:17:23,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:17:23,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:17:23,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:17:23,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:17:23,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:17:23,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:17:23,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:17:23,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:17:23,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:17:23,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:17:23,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:17:23,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:17:23,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:17:23,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:17:23,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:17:23,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:17:23,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:17:23,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:17:23,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:17:23,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:17:23,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:17:23,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:17:23,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:17:23,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:17:23,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:17:23,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:17:23,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:17:23,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:17:23,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:17:23,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:17:23,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:17:23,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:17:23,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:17:23,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:17:23,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 13:17:23,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:17:23,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:17:23,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:17:23,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:17:23,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:17:23,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:17:23,640 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:17:23,640 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:17:23,640 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:17:23,641 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:17:23,642 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:17:23,642 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:17:23,642 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:17:23,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:17:23,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:17:23,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:17:23,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:17:23,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:17:23,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:17:23,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:17:23,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:17:23,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:17:23,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:17:23,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:17:23,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:17:23,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:17:23,645 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:17:23,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:17:23,647 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 [2022-12-14 13:17:23,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:17:23,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:17:23,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:17:23,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:17:23,861 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:17:23,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-12-14 13:17:26,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:17:26,862 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:17:26,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-12-14 13:17:26,891 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/data/445d44dc7/9e44594d1a2e413084d137cc05058396/FLAGdfebf867a [2022-12-14 13:17:26,902 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/data/445d44dc7/9e44594d1a2e413084d137cc05058396 [2022-12-14 13:17:26,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:17:26,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:17:26,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:17:26,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:17:26,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:17:26,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:17:26" (1/1) ... [2022-12-14 13:17:26,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16aa9be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:26, skipping insertion in model container [2022-12-14 13:17:26,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:17:26" (1/1) ... [2022-12-14 13:17:26,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:17:27,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:17:27,731 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 13:17:27,750 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 13:17:27,792 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 13:17:27,854 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:27,926 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:17:27,932 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:17:27,938 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 13:17:27,944 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 13:17:27,949 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 13:17:27,975 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 13:17:27,981 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:17:27,983 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 13:17:27,988 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 13:17:28,064 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 13:17:28,096 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 13:17:28,096 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:28,149 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 13:17:28,149 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 13:17:28,159 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:17:28,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,252 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 13:17:28,257 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 13:17:28,262 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 13:17:28,348 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 13:17:28,445 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 13:17:28,469 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 13:17:28,478 WARN L623 FunctionHandler]: Unknown extern function __tasklet_hi_schedule [2022-12-14 13:17:28,554 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,562 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,614 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,614 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,614 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,614 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,615 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,626 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,627 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,627 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,638 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,665 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,665 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,666 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,669 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,670 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,670 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,673 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,673 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:28,674 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,675 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 13:17:28,675 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,676 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:28,690 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:28,691 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:17:28,705 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,706 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,719 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:17:28,720 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:28,726 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:28,731 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:17:28,752 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,753 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,764 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:28,765 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:28,766 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:28,772 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 13:17:28,772 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 13:17:28,839 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,839 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,840 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:28,841 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,841 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:28,851 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 13:17:28,857 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,863 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:28,870 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:28,877 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 13:17:28,902 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 13:17:28,903 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:28,904 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 13:17:28,909 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 13:17:28,943 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:28,955 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:28,955 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:28,955 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:28,955 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:28,956 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:28,965 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,965 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:28,974 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:28,974 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:28,974 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:28,975 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:28,975 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:28,991 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:17:28,996 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 13:17:28,996 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:29,002 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 13:17:29,007 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,023 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:29,023 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:29,024 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:29,029 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,037 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 13:17:29,037 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 13:17:29,044 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 13:17:29,053 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:29,054 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:29,054 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:29,103 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 13:17:29,108 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 13:17:29,109 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 13:17:29,116 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 13:17:29,144 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 13:17:29,145 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 13:17:29,145 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 13:17:29,154 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:29,154 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,155 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:29,155 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,160 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:29,161 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,161 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:29,162 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:29,162 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:29,162 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:29,198 WARN L623 FunctionHandler]: Unknown extern function pci_disable_link_state [2022-12-14 13:17:29,198 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 13:17:29,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,199 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 13:17:29,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,199 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 13:17:29,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,202 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 13:17:29,202 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:29,202 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:29,202 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:29,203 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:29,204 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,205 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 13:17:29,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,205 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:29,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,206 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:29,207 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:17:29,207 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 13:17:29,207 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 13:17:29,212 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:17:29,213 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 13:17:29,213 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 13:17:29,217 WARN L623 FunctionHandler]: Unknown extern function pci_pme_active [2022-12-14 13:17:29,223 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 13:17:29,223 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:29,228 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 13:17:29,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:29,655 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,655 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,655 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,656 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,657 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:29,660 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 13:17:29,663 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 13:17:29,665 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 13:17:29,665 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 13:17:29,672 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 13:17:29,677 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 13:17:29,682 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 13:17:29,688 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:17:29,688 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 13:17:29,689 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 13:17:29,689 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 13:17:29,689 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 13:17:29,689 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 13:17:29,690 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 13:17:29,690 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:17:29,739 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 13:17:29,740 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 13:17:29,749 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 13:17:30,425 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-12-14 13:17:30,428 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-12-14 13:17:30,428 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-12-14 13:17:30,429 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-12-14 13:17:30,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,431 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,444 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:17:30,481 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:17:30,584 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 13:17:30,584 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 13:17:30,586 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 13:17:30,587 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,593 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 13:17:30,594 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 13:17:30,595 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 13:17:30,596 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 13:17:30,597 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 13:17:30,600 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 13:17:30,601 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:17:30,601 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 13:17:30,602 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 13:17:30,606 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 13:17:30,608 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 13:17:30,608 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,610 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 13:17:30,610 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 13:17:30,611 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 13:17:30,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,612 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 13:17:30,615 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 13:17:30,617 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 13:17:30,620 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 13:17:30,622 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 13:17:30,623 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 13:17:30,624 WARN L623 FunctionHandler]: Unknown extern function __tasklet_hi_schedule [2022-12-14 13:17:30,627 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,628 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,632 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,635 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,635 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,635 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,636 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,638 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,640 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,641 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,641 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,641 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,642 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,643 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,643 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,645 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,645 WARN L623 FunctionHandler]: Unknown extern function strcat [2022-12-14 13:17:30,646 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,646 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 13:17:30,646 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,647 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,650 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:30,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:17:30,652 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,653 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,655 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:17:30,656 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:30,657 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:30,658 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 13:17:30,662 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,662 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,664 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,664 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,665 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,666 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 13:17:30,666 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 13:17:30,674 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,674 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,675 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,677 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 13:17:30,678 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,679 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,681 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:30,683 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 13:17:30,685 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-12-14 13:17:30,686 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,686 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 13:17:30,687 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-12-14 13:17:30,690 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,692 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:30,692 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:30,692 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:30,693 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:30,693 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,694 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,694 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,695 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,695 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:30,695 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:30,695 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:30,695 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 13:17:30,699 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 13:17:30,699 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 13:17:30,700 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 13:17:30,701 WARN L623 FunctionHandler]: Unknown extern function csum_ipv6_magic [2022-12-14 13:17:30,702 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,704 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,705 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,705 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,706 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,709 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 13:17:30,709 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 13:17:30,710 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 13:17:30,711 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:30,711 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:30,712 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 13:17:30,718 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 13:17:30,718 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 13:17:30,719 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 13:17:30,721 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 13:17:30,722 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 13:17:30,722 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 13:17:30,723 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 13:17:30,723 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,723 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,724 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,724 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,725 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,725 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,725 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 13:17:30,726 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 13:17:30,726 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,726 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 13:17:30,730 WARN L623 FunctionHandler]: Unknown extern function pci_disable_link_state [2022-12-14 13:17:30,730 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 13:17:30,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,731 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 13:17:30,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,731 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 13:17:30,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,734 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 13:17:30,734 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:30,734 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:30,734 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 13:17:30,735 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 13:17:30,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,736 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 13:17:30,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,737 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,737 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 13:17:30,738 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:17:30,738 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 13:17:30,739 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 13:17:30,739 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 13:17:30,739 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 13:17:30,740 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 13:17:30,740 WARN L623 FunctionHandler]: Unknown extern function pci_pme_active [2022-12-14 13:17:30,740 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 13:17:30,741 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 13:17:30,742 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 13:17:30,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 13:17:30,747 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,748 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,749 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,763 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,765 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 13:17:30,767 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 13:17:30,769 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 13:17:30,769 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 13:17:30,774 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 13:17:30,778 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 13:17:30,788 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 13:17:30,796 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 13:17:30,796 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 13:17:30,797 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 13:17:30,797 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 13:17:30,797 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 13:17:30,797 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 13:17:30,797 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 13:17:30,798 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 13:17:30,799 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 13:17:30,800 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 13:17:30,800 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 13:17:30,817 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-12-14 13:17:30,817 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-12-14 13:17:30,818 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-12-14 13:17:30,818 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_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-12-14 13:17:30,818 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,819 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,820 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,821 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 13:17:30,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:17:30,972 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:17:30,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30 WrapperNode [2022-12-14 13:17:30,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:17:30,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:17:30,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:17:30,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:17:30,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,244 INFO L138 Inliner]: procedures = 663, calls = 2959, calls flagged for inlining = 321, calls inlined = 256, statements flattened = 6034 [2022-12-14 13:17:31,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:17:31,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:17:31,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:17:31,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:17:31,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:17:31,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:17:31,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:17:31,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:17:31,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (1/1) ... [2022-12-14 13:17:31,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:17:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:17:31,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:17:31,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 13:17:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-12-14 13:17:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-12-14 13:17:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 13:17:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-12-14 13:17:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-12-14 13:17:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-12-14 13:17:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-12-14 13:17:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-12-14 13:17:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 13:17:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 13:17:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-12-14 13:17:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 13:17:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-12-14 13:17:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-14 13:17:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 13:17:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 13:17:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 13:17:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 13:17:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-12-14 13:17:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-12-14 13:17:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:17:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 13:17:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 13:17:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-12-14 13:17:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-12-14 13:17:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-12-14 13:17:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 13:17:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 13:17:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 13:17:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-12-14 13:17:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:17:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_82 [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_82 [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-12-14 13:17:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 13:17:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-12-14 13:17:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-12-14 13:17:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 13:17:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 13:17:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-12-14 13:17:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-12-14 13:17:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 13:17:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 13:17:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-12-14 13:17:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-12-14 13:17:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 13:17:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 13:17:31,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-12-14 13:17:31,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-12-14 13:17:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-12-14 13:17:31,596 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-12-14 13:17:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-12-14 13:17:31,597 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-12-14 13:17:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-12-14 13:17:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-12-14 13:17:31,598 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-12-14 13:17:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-12-14 13:17:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-12-14 13:17:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-12-14 13:17:31,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 13:17:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 13:17:31,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-12-14 13:17:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-12-14 13:17:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_81 [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_81 [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-12-14 13:17:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-12-14 13:17:31,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 13:17:31,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 13:17:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 13:17:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-12-14 13:17:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 13:17:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-12-14 13:17:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-12-14 13:17:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-12-14 13:17:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 13:17:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-12-14 13:17:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 13:17:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-12-14 13:17:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-12-14 13:17:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-12-14 13:17:31,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-12-14 13:17:32,222 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:17:32,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:17:32,611 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 13:17:37,733 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 13:17:37,895 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:17:38,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:17:38,815 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 13:17:38,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:17:38 BoogieIcfgContainer [2022-12-14 13:17:38,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:17:38,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:17:38,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:17:38,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:17:38,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:17:26" (1/3) ... [2022-12-14 13:17:38,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ecc3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:17:38, skipping insertion in model container [2022-12-14 13:17:38,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:17:30" (2/3) ... [2022-12-14 13:17:38,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ecc3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:17:38, skipping insertion in model container [2022-12-14 13:17:38,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:17:38" (3/3) ... [2022-12-14 13:17:38,826 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-12-14 13:17:38,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:17:38,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 13:17:38,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:17:38,909 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;@25980aed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:17:38,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 13:17:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) [2022-12-14 13:17:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-14 13:17:38,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:38,932 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:38,933 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 13:17:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:38,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1355909470, now seen corresponding path program 1 times [2022-12-14 13:17:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:38,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414538243] [2022-12-14 13:17:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-12-14 13:17:39,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:39,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414538243] [2022-12-14 13:17:39,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414538243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:39,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:39,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:17:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525816817] [2022-12-14 13:17:39,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:39,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:17:39,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:39,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:17:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:17:39,513 INFO L87 Difference]: Start difference. First operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:17:42,429 INFO L93 Difference]: Finished difference Result 6060 states and 8952 transitions. [2022-12-14 13:17:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:17:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 201 [2022-12-14 13:17:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:17:42,472 INFO L225 Difference]: With dead ends: 6060 [2022-12-14 13:17:42,473 INFO L226 Difference]: Without dead ends: 4002 [2022-12-14 13:17:42,489 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 13:17:42,492 INFO L413 NwaCegarLoop]: 3249 mSDtfsCounter, 2835 mSDsluCounter, 2537 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2835 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:17:42,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2835 Valid, 5786 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 13:17:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-12-14 13:17:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3998. [2022-12-14 13:17:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2286 states have (on average 1.2979002624671916) internal successors, (2967), 2381 states have internal predecessors, (2967), 1399 states have call successors, (1399), 311 states have call predecessors, (1399), 310 states have return successors, (1395), 1363 states have call predecessors, (1395), 1395 states have call successors, (1395) [2022-12-14 13:17:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5761 transitions. [2022-12-14 13:17:42,740 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5761 transitions. Word has length 201 [2022-12-14 13:17:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:17:42,741 INFO L495 AbstractCegarLoop]: Abstraction has 3998 states and 5761 transitions. [2022-12-14 13:17:42,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:42,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5761 transitions. [2022-12-14 13:17:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-12-14 13:17:42,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:42,751 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:42,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:17:42,752 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 13:17:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:42,752 INFO L85 PathProgramCache]: Analyzing trace with hash -30219166, now seen corresponding path program 1 times [2022-12-14 13:17:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:42,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305724960] [2022-12-14 13:17:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-12-14 13:17:42,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:42,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305724960] [2022-12-14 13:17:42,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305724960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:42,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:42,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:17:42,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121052939] [2022-12-14 13:17:42,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:42,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:17:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:17:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:17:42,935 INFO L87 Difference]: Start difference. First operand 3998 states and 5761 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:17:45,939 INFO L93 Difference]: Finished difference Result 10936 states and 15695 transitions. [2022-12-14 13:17:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:17:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2022-12-14 13:17:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:17:45,971 INFO L225 Difference]: With dead ends: 10936 [2022-12-14 13:17:45,971 INFO L226 Difference]: Without dead ends: 6975 [2022-12-14 13:17:45,995 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 13:17:45,996 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2164 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:17:45,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 5582 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 13:17:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2022-12-14 13:17:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6941. [2022-12-14 13:17:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 3935 states have (on average 1.2884371029224904) internal successors, (5070), 4113 states have internal predecessors, (5070), 2432 states have call successors, (2432), 574 states have call predecessors, (2432), 571 states have return successors, (2430), 2357 states have call predecessors, (2430), 2428 states have call successors, (2430) [2022-12-14 13:17:46,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 9932 transitions. [2022-12-14 13:17:46,291 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 9932 transitions. Word has length 209 [2022-12-14 13:17:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:17:46,291 INFO L495 AbstractCegarLoop]: Abstraction has 6941 states and 9932 transitions. [2022-12-14 13:17:46,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 9932 transitions. [2022-12-14 13:17:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-14 13:17:46,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:46,296 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:46,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:17:46,296 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 13:17:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:46,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1443389971, now seen corresponding path program 1 times [2022-12-14 13:17:46,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:46,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295712573] [2022-12-14 13:17:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:46,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-12-14 13:17:46,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:46,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295712573] [2022-12-14 13:17:46,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295712573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:46,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:46,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:17:46,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638716753] [2022-12-14 13:17:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:46,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:17:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:17:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:17:46,528 INFO L87 Difference]: Start difference. First operand 6941 states and 9932 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:17:49,685 INFO L93 Difference]: Finished difference Result 20015 states and 28588 transitions. [2022-12-14 13:17:49,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:17:49,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2022-12-14 13:17:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:17:49,741 INFO L225 Difference]: With dead ends: 20015 [2022-12-14 13:17:49,741 INFO L226 Difference]: Without dead ends: 13111 [2022-12-14 13:17:49,764 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 13:17:49,765 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 2682 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:17:49,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 6033 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 13:17:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13111 states. [2022-12-14 13:17:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13111 to 13073. [2022-12-14 13:17:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13073 states, 7379 states have (on average 1.2730722320097574) internal successors, (9394), 7709 states have internal predecessors, (9394), 4578 states have call successors, (4578), 1118 states have call predecessors, (4578), 1113 states have return successors, (4576), 4443 states have call predecessors, (4576), 4574 states have call successors, (4576) [2022-12-14 13:17:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18548 transitions. [2022-12-14 13:17:50,340 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18548 transitions. Word has length 212 [2022-12-14 13:17:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:17:50,341 INFO L495 AbstractCegarLoop]: Abstraction has 13073 states and 18548 transitions. [2022-12-14 13:17:50,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18548 transitions. [2022-12-14 13:17:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-12-14 13:17:50,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:50,345 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:50,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:17:50,346 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 13:17:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash 359603962, now seen corresponding path program 1 times [2022-12-14 13:17:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:50,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789165858] [2022-12-14 13:17:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:50,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-12-14 13:17:50,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:50,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789165858] [2022-12-14 13:17:50,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789165858] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:50,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:50,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:17:50,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700269033] [2022-12-14 13:17:50,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:50,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:17:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:17:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:17:50,527 INFO L87 Difference]: Start difference. First operand 13073 states and 18548 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:53,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:17:53,465 INFO L93 Difference]: Finished difference Result 27277 states and 38575 transitions. [2022-12-14 13:17:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:17:53,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 216 [2022-12-14 13:17:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:17:53,518 INFO L225 Difference]: With dead ends: 27277 [2022-12-14 13:17:53,518 INFO L226 Difference]: Without dead ends: 14241 [2022-12-14 13:17:53,555 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 13:17:53,556 INFO L413 NwaCegarLoop]: 3748 mSDtfsCounter, 2495 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:17:53,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 6258 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 13:17:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-12-14 13:17:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 14205. [2022-12-14 13:17:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 8005 states have (on average 1.2615865084322297) internal successors, (10099), 8375 states have internal predecessors, (10099), 4923 states have call successors, (4923), 1282 states have call predecessors, (4923), 1274 states have return successors, (4921), 4760 states have call predecessors, (4921), 4919 states have call successors, (4921) [2022-12-14 13:17:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 19943 transitions. [2022-12-14 13:17:54,097 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 19943 transitions. Word has length 216 [2022-12-14 13:17:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:17:54,097 INFO L495 AbstractCegarLoop]: Abstraction has 14205 states and 19943 transitions. [2022-12-14 13:17:54,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 13:17:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 19943 transitions. [2022-12-14 13:17:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-12-14 13:17:54,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:54,101 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 18, 18, 18, 18, 18, 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] [2022-12-14 13:17:54,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:17:54,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 13:17:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -845705651, now seen corresponding path program 1 times [2022-12-14 13:17:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340907204] [2022-12-14 13:17:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2022-12-14 13:17:54,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:54,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340907204] [2022-12-14 13:17:54,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340907204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:54,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:54,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:17:54,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964723162] [2022-12-14 13:17:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:54,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:17:54,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:17:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:17:54,344 INFO L87 Difference]: Start difference. First operand 14205 states and 19943 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 13:17:57,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:17:57,580 INFO L93 Difference]: Finished difference Result 36813 states and 51817 transitions. [2022-12-14 13:17:57,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:17:57,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 232 [2022-12-14 13:17:57,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:17:57,659 INFO L225 Difference]: With dead ends: 36813 [2022-12-14 13:17:57,659 INFO L226 Difference]: Without dead ends: 22645 [2022-12-14 13:17:57,698 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 13:17:57,699 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 2811 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:17:57,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 6033 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 13:17:57,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22645 states. [2022-12-14 13:17:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22645 to 22599. [2022-12-14 13:17:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22599 states, 12877 states have (on average 1.2658227848101267) internal successors, (16300), 13483 states have internal predecessors, (16300), 7740 states have call successors, (7740), 1994 states have call predecessors, (7740), 1979 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:17:58,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22599 states to 22599 states and 31780 transitions. [2022-12-14 13:17:58,544 INFO L78 Accepts]: Start accepts. Automaton has 22599 states and 31780 transitions. Word has length 232 [2022-12-14 13:17:58,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:17:58,545 INFO L495 AbstractCegarLoop]: Abstraction has 22599 states and 31780 transitions. [2022-12-14 13:17:58,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 13:17:58,546 INFO L276 IsEmpty]: Start isEmpty. Operand 22599 states and 31780 transitions. [2022-12-14 13:17:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-14 13:17:58,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:17:58,548 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 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 13:17:58,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:17:58,549 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 13:17:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:17:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2129560550, now seen corresponding path program 1 times [2022-12-14 13:17:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:17:58,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052206094] [2022-12-14 13:17:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:17:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:17:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:17:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-12-14 13:17:58,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:17:58,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052206094] [2022-12-14 13:17:58,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052206094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:17:58,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:17:58,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:17:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584322213] [2022-12-14 13:17:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:17:58,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:17:58,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:17:58,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:17:58,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:17:58,872 INFO L87 Difference]: Start difference. First operand 22599 states and 31780 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 13:18:03,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:03,359 INFO L93 Difference]: Finished difference Result 22605 states and 31785 transitions. [2022-12-14 13:18:03,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:03,360 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 243 [2022-12-14 13:18:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:03,436 INFO L225 Difference]: With dead ends: 22605 [2022-12-14 13:18:03,436 INFO L226 Difference]: Without dead ends: 22603 [2022-12-14 13:18:03,447 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 13:18:03,448 INFO L413 NwaCegarLoop]: 2544 mSDtfsCounter, 2888 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 7614 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:03,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 7614 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 13:18:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22603 states. [2022-12-14 13:18:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22603 to 22603. [2022-12-14 13:18:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22603 states, 12880 states have (on average 1.2657608695652174) internal successors, (16303), 13486 states have internal predecessors, (16303), 7740 states have call successors, (7740), 1995 states have call predecessors, (7740), 1980 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:18:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 31783 transitions. [2022-12-14 13:18:04,245 INFO L78 Accepts]: Start accepts. Automaton has 22603 states and 31783 transitions. Word has length 243 [2022-12-14 13:18:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:04,245 INFO L495 AbstractCegarLoop]: Abstraction has 22603 states and 31783 transitions. [2022-12-14 13:18:04,245 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 13:18:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 22603 states and 31783 transitions. [2022-12-14 13:18:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-14 13:18:04,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:04,247 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:04,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:18:04,247 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 13:18:04,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1199027404, now seen corresponding path program 1 times [2022-12-14 13:18:04,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:04,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504940173] [2022-12-14 13:18:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:04,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2022-12-14 13:18:04,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:04,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504940173] [2022-12-14 13:18:04,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504940173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:04,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:04,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:04,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426216893] [2022-12-14 13:18:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:04,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:04,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:04,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:04,590 INFO L87 Difference]: Start difference. First operand 22603 states and 31783 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 13:18:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:09,016 INFO L93 Difference]: Finished difference Result 22609 states and 31788 transitions. [2022-12-14 13:18:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:09,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 252 [2022-12-14 13:18:09,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:09,093 INFO L225 Difference]: With dead ends: 22609 [2022-12-14 13:18:09,093 INFO L226 Difference]: Without dead ends: 22607 [2022-12-14 13:18:09,100 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 13:18:09,100 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2882 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:09,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 13:18:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2022-12-14 13:18:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 22607. [2022-12-14 13:18:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22607 states, 12883 states have (on average 1.2656989831560972) internal successors, (16306), 13489 states have internal predecessors, (16306), 7740 states have call successors, (7740), 1996 states have call predecessors, (7740), 1981 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:18:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 31786 transitions. [2022-12-14 13:18:09,908 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 31786 transitions. Word has length 252 [2022-12-14 13:18:09,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:09,908 INFO L495 AbstractCegarLoop]: Abstraction has 22607 states and 31786 transitions. [2022-12-14 13:18:09,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 13:18:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 31786 transitions. [2022-12-14 13:18:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 13:18:09,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:09,911 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:09,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:18:09,911 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 13:18:09,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:09,911 INFO L85 PathProgramCache]: Analyzing trace with hash -345344506, now seen corresponding path program 1 times [2022-12-14 13:18:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676777121] [2022-12-14 13:18:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:09,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-12-14 13:18:10,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676777121] [2022-12-14 13:18:10,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676777121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:10,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:10,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:10,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843869823] [2022-12-14 13:18:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:10,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:10,233 INFO L87 Difference]: Start difference. First operand 22607 states and 31786 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:13,455 INFO L93 Difference]: Finished difference Result 22613 states and 31791 transitions. [2022-12-14 13:18:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:13,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 253 [2022-12-14 13:18:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:13,527 INFO L225 Difference]: With dead ends: 22613 [2022-12-14 13:18:13,527 INFO L226 Difference]: Without dead ends: 22611 [2022-12-14 13:18:13,539 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 13:18:13,539 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:13,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 13:18:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22611 states. [2022-12-14 13:18:14,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22611 to 22611. [2022-12-14 13:18:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22611 states, 12886 states have (on average 1.2656371255626262) internal successors, (16309), 13492 states have internal predecessors, (16309), 7740 states have call successors, (7740), 1997 states have call predecessors, (7740), 1982 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:18:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22611 states to 22611 states and 31789 transitions. [2022-12-14 13:18:14,600 INFO L78 Accepts]: Start accepts. Automaton has 22611 states and 31789 transitions. Word has length 253 [2022-12-14 13:18:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:14,601 INFO L495 AbstractCegarLoop]: Abstraction has 22611 states and 31789 transitions. [2022-12-14 13:18:14,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22611 states and 31789 transitions. [2022-12-14 13:18:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-12-14 13:18:14,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:14,603 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:14,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 13:18:14,604 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 13:18:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash 907597309, now seen corresponding path program 1 times [2022-12-14 13:18:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131342514] [2022-12-14 13:18:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:14,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2022-12-14 13:18:14,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:14,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131342514] [2022-12-14 13:18:14,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131342514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:14,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:14,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:14,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317379869] [2022-12-14 13:18:14,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:14,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:14,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:14,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:14,909 INFO L87 Difference]: Start difference. First operand 22611 states and 31789 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:19,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:19,282 INFO L93 Difference]: Finished difference Result 22617 states and 31794 transitions. [2022-12-14 13:18:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:19,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 258 [2022-12-14 13:18:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:19,338 INFO L225 Difference]: With dead ends: 22617 [2022-12-14 13:18:19,338 INFO L226 Difference]: Without dead ends: 22615 [2022-12-14 13:18:19,346 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 13:18:19,346 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:19,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 13:18:19,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22615 states. [2022-12-14 13:18:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22615 to 22615. [2022-12-14 13:18:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22615 states, 12889 states have (on average 1.2655752967646832) internal successors, (16312), 13495 states have internal predecessors, (16312), 7740 states have call successors, (7740), 1998 states have call predecessors, (7740), 1983 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:18:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22615 states to 22615 states and 31792 transitions. [2022-12-14 13:18:20,505 INFO L78 Accepts]: Start accepts. Automaton has 22615 states and 31792 transitions. Word has length 258 [2022-12-14 13:18:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:20,506 INFO L495 AbstractCegarLoop]: Abstraction has 22615 states and 31792 transitions. [2022-12-14 13:18:20,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 22615 states and 31792 transitions. [2022-12-14 13:18:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 13:18:20,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:20,509 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:20,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:18:20,509 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 13:18:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 707260454, now seen corresponding path program 1 times [2022-12-14 13:18:20,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:20,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531254609] [2022-12-14 13:18:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:20,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2022-12-14 13:18:20,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:20,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531254609] [2022-12-14 13:18:20,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531254609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:20,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:20,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521694770] [2022-12-14 13:18:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:20,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:20,799 INFO L87 Difference]: Start difference. First operand 22615 states and 31792 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 13:18:24,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:18:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:26,046 INFO L93 Difference]: Finished difference Result 22621 states and 31797 transitions. [2022-12-14 13:18:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 263 [2022-12-14 13:18:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:26,101 INFO L225 Difference]: With dead ends: 22621 [2022-12-14 13:18:26,101 INFO L226 Difference]: Without dead ends: 22619 [2022-12-14 13:18:26,108 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 13:18:26,109 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:26,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 13:18:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22619 states. [2022-12-14 13:18:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22619 to 22619. [2022-12-14 13:18:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22619 states, 12892 states have (on average 1.2655134967421657) internal successors, (16315), 13498 states have internal predecessors, (16315), 7740 states have call successors, (7740), 1999 states have call predecessors, (7740), 1984 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-12-14 13:18:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22619 states to 22619 states and 31795 transitions. [2022-12-14 13:18:27,147 INFO L78 Accepts]: Start accepts. Automaton has 22619 states and 31795 transitions. Word has length 263 [2022-12-14 13:18:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:27,147 INFO L495 AbstractCegarLoop]: Abstraction has 22619 states and 31795 transitions. [2022-12-14 13:18:27,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 13:18:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 22619 states and 31795 transitions. [2022-12-14 13:18:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 13:18:27,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:27,150 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:27,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 13:18:27,151 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 13:18:27,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1056545904, now seen corresponding path program 1 times [2022-12-14 13:18:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100604304] [2022-12-14 13:18:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:27,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-12-14 13:18:27,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100604304] [2022-12-14 13:18:27,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100604304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:27,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:27,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:18:27,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419038467] [2022-12-14 13:18:27,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:27,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:18:27,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:27,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:18:27,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:18:27,343 INFO L87 Difference]: Start difference. First operand 22619 states and 31795 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 13:18:31,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:31,458 INFO L93 Difference]: Finished difference Result 54589 states and 76785 transitions. [2022-12-14 13:18:31,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:18:31,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 263 [2022-12-14 13:18:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:31,557 INFO L225 Difference]: With dead ends: 54589 [2022-12-14 13:18:31,558 INFO L226 Difference]: Without dead ends: 32103 [2022-12-14 13:18:31,615 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 13:18:31,616 INFO L413 NwaCegarLoop]: 3810 mSDtfsCounter, 2490 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:31,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 6318 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 13:18:31,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32103 states. [2022-12-14 13:18:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32103 to 32039. [2022-12-14 13:18:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32039 states, 18305 states have (on average 1.265118819994537) internal successors, (23158), 19171 states have internal predecessors, (23158), 10902 states have call successors, (10902), 2854 states have call predecessors, (10902), 2829 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-12-14 13:18:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32039 states to 32039 states and 44964 transitions. [2022-12-14 13:18:33,111 INFO L78 Accepts]: Start accepts. Automaton has 32039 states and 44964 transitions. Word has length 263 [2022-12-14 13:18:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:33,111 INFO L495 AbstractCegarLoop]: Abstraction has 32039 states and 44964 transitions. [2022-12-14 13:18:33,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 13:18:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 32039 states and 44964 transitions. [2022-12-14 13:18:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-12-14 13:18:33,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:33,114 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:33,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 13:18:33,115 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 13:18:33,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash 193781597, now seen corresponding path program 1 times [2022-12-14 13:18:33,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:33,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408252710] [2022-12-14 13:18:33,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-12-14 13:18:33,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:33,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408252710] [2022-12-14 13:18:33,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408252710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:33,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:33,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:33,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399221489] [2022-12-14 13:18:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:33,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:33,454 INFO L87 Difference]: Start difference. First operand 32039 states and 44964 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:37,851 INFO L93 Difference]: Finished difference Result 32045 states and 44969 transitions. [2022-12-14 13:18:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 268 [2022-12-14 13:18:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:37,953 INFO L225 Difference]: With dead ends: 32045 [2022-12-14 13:18:37,954 INFO L226 Difference]: Without dead ends: 32043 [2022-12-14 13:18:37,969 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 13:18:37,970 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:37,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 13:18:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32043 states. [2022-12-14 13:18:39,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32043 to 32043. [2022-12-14 13:18:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32043 states, 18308 states have (on average 1.265075376884422) internal successors, (23161), 19174 states have internal predecessors, (23161), 10902 states have call successors, (10902), 2855 states have call predecessors, (10902), 2830 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-12-14 13:18:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32043 states to 32043 states and 44967 transitions. [2022-12-14 13:18:39,628 INFO L78 Accepts]: Start accepts. Automaton has 32043 states and 44967 transitions. Word has length 268 [2022-12-14 13:18:39,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:39,629 INFO L495 AbstractCegarLoop]: Abstraction has 32043 states and 44967 transitions. [2022-12-14 13:18:39,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand 32043 states and 44967 transitions. [2022-12-14 13:18:39,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-12-14 13:18:39,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:39,632 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:39,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 13:18:39,632 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 13:18:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:39,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1070583579, now seen corresponding path program 1 times [2022-12-14 13:18:39,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:39,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760677901] [2022-12-14 13:18:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2022-12-14 13:18:39,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:39,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760677901] [2022-12-14 13:18:39,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760677901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:39,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:39,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:39,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880498463] [2022-12-14 13:18:39,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:39,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:39,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:39,905 INFO L87 Difference]: Start difference. First operand 32043 states and 44967 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 13:18:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:44,659 INFO L93 Difference]: Finished difference Result 32049 states and 44972 transitions. [2022-12-14 13:18:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 276 [2022-12-14 13:18:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:44,762 INFO L225 Difference]: With dead ends: 32049 [2022-12-14 13:18:44,762 INFO L226 Difference]: Without dead ends: 32047 [2022-12-14 13:18:44,784 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 13:18:44,784 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2882 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:44,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 13:18:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32047 states. [2022-12-14 13:18:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32047 to 32047. [2022-12-14 13:18:46,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32047 states, 18311 states have (on average 1.2650319480093932) internal successors, (23164), 19177 states have internal predecessors, (23164), 10902 states have call successors, (10902), 2856 states have call predecessors, (10902), 2831 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-12-14 13:18:46,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32047 states to 32047 states and 44970 transitions. [2022-12-14 13:18:46,544 INFO L78 Accepts]: Start accepts. Automaton has 32047 states and 44970 transitions. Word has length 276 [2022-12-14 13:18:46,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:46,544 INFO L495 AbstractCegarLoop]: Abstraction has 32047 states and 44970 transitions. [2022-12-14 13:18:46,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 13:18:46,544 INFO L276 IsEmpty]: Start isEmpty. Operand 32047 states and 44970 transitions. [2022-12-14 13:18:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-14 13:18:46,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:46,547 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:46,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 13:18:46,547 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 13:18:46,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1568776003, now seen corresponding path program 1 times [2022-12-14 13:18:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:46,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83393111] [2022-12-14 13:18:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2022-12-14 13:18:46,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:46,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83393111] [2022-12-14 13:18:46,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83393111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:46,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:46,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:46,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95695209] [2022-12-14 13:18:46,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:46,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:46,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:46,801 INFO L87 Difference]: Start difference. First operand 32047 states and 44970 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:51,158 INFO L93 Difference]: Finished difference Result 32053 states and 44975 transitions. [2022-12-14 13:18:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:51,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 278 [2022-12-14 13:18:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:51,253 INFO L225 Difference]: With dead ends: 32053 [2022-12-14 13:18:51,253 INFO L226 Difference]: Without dead ends: 32051 [2022-12-14 13:18:51,266 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 13:18:51,266 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 13:18:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32051 states. [2022-12-14 13:18:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32051 to 32051. [2022-12-14 13:18:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32051 states, 18314 states have (on average 1.2649885333624549) internal successors, (23167), 19180 states have internal predecessors, (23167), 10902 states have call successors, (10902), 2857 states have call predecessors, (10902), 2832 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-12-14 13:18:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32051 states to 32051 states and 44973 transitions. [2022-12-14 13:18:53,094 INFO L78 Accepts]: Start accepts. Automaton has 32051 states and 44973 transitions. Word has length 278 [2022-12-14 13:18:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:18:53,095 INFO L495 AbstractCegarLoop]: Abstraction has 32051 states and 44973 transitions. [2022-12-14 13:18:53,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 13:18:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 32051 states and 44973 transitions. [2022-12-14 13:18:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-12-14 13:18:53,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:18:53,098 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:18:53,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 13:18:53,098 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 13:18:53,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:18:53,098 INFO L85 PathProgramCache]: Analyzing trace with hash 35132155, now seen corresponding path program 1 times [2022-12-14 13:18:53,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:18:53,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931221814] [2022-12-14 13:18:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:18:53,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:18:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:18:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1542 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2022-12-14 13:18:53,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:18:53,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931221814] [2022-12-14 13:18:53,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931221814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:18:53,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:18:53,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:18:53,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000390033] [2022-12-14 13:18:53,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:18:53,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:18:53,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:18:53,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:18:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:18:53,352 INFO L87 Difference]: Start difference. First operand 32051 states and 44973 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 13:18:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:18:58,441 INFO L93 Difference]: Finished difference Result 32459 states and 45331 transitions. [2022-12-14 13:18:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:18:58,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 286 [2022-12-14 13:18:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:18:58,543 INFO L225 Difference]: With dead ends: 32459 [2022-12-14 13:18:58,543 INFO L226 Difference]: Without dead ends: 32457 [2022-12-14 13:18:58,558 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 13:18:58,558 INFO L413 NwaCegarLoop]: 2552 mSDtfsCounter, 2838 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 7695 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:18:58,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 7695 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 13:18:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32457 states. [2022-12-14 13:19:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32457 to 32455. [2022-12-14 13:19:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32455 states, 18541 states have (on average 1.2626071948654334) internal successors, (23410), 19407 states have internal predecessors, (23410), 10958 states have call successors, (10958), 2978 states have call predecessors, (10958), 2953 states have return successors, (10960), 10545 states have call predecessors, (10960), 10954 states have call successors, (10960) [2022-12-14 13:19:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32455 states to 32455 states and 45328 transitions. [2022-12-14 13:19:00,520 INFO L78 Accepts]: Start accepts. Automaton has 32455 states and 45328 transitions. Word has length 286 [2022-12-14 13:19:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:00,521 INFO L495 AbstractCegarLoop]: Abstraction has 32455 states and 45328 transitions. [2022-12-14 13:19:00,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 13:19:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand 32455 states and 45328 transitions. [2022-12-14 13:19:00,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 13:19:00,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:00,524 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:19:00,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 13:19:00,525 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 13:19:00,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:00,525 INFO L85 PathProgramCache]: Analyzing trace with hash 913791517, now seen corresponding path program 1 times [2022-12-14 13:19:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:00,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201264770] [2022-12-14 13:19:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 13:19:00,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:00,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201264770] [2022-12-14 13:19:00,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201264770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:00,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:00,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:19:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60550531] [2022-12-14 13:19:00,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:00,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:19:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:19:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:19:00,826 INFO L87 Difference]: Start difference. First operand 32455 states and 45328 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 13:19:05,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:19:05,712 INFO L93 Difference]: Finished difference Result 32461 states and 45333 transitions. [2022-12-14 13:19:05,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:19:05,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 288 [2022-12-14 13:19:05,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:19:05,858 INFO L225 Difference]: With dead ends: 32461 [2022-12-14 13:19:05,858 INFO L226 Difference]: Without dead ends: 32459 [2022-12-14 13:19:05,869 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 13:19:05,869 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:19:05,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 13:19:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32459 states. [2022-12-14 13:19:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32459 to 32459. [2022-12-14 13:19:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32459 states, 18544 states have (on average 1.2625647109577223) internal successors, (23413), 19410 states have internal predecessors, (23413), 10958 states have call successors, (10958), 2979 states have call predecessors, (10958), 2954 states have return successors, (10960), 10545 states have call predecessors, (10960), 10954 states have call successors, (10960) [2022-12-14 13:19:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32459 states to 32459 states and 45331 transitions. [2022-12-14 13:19:07,959 INFO L78 Accepts]: Start accepts. Automaton has 32459 states and 45331 transitions. Word has length 288 [2022-12-14 13:19:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:07,959 INFO L495 AbstractCegarLoop]: Abstraction has 32459 states and 45331 transitions. [2022-12-14 13:19:07,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 13:19:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand 32459 states and 45331 transitions. [2022-12-14 13:19:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-12-14 13:19:07,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:07,963 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:19:07,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 13:19:07,963 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 13:19:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:07,964 INFO L85 PathProgramCache]: Analyzing trace with hash -810111269, now seen corresponding path program 1 times [2022-12-14 13:19:07,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:07,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792028837] [2022-12-14 13:19:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:07,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1614 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-12-14 13:19:08,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:08,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792028837] [2022-12-14 13:19:08,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792028837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:08,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:08,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:19:08,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287063589] [2022-12-14 13:19:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:08,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:19:08,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:19:08,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:19:08,287 INFO L87 Difference]: Start difference. First operand 32459 states and 45331 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 13:19:10,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:19:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:19:15,525 INFO L93 Difference]: Finished difference Result 34005 states and 47099 transitions. [2022-12-14 13:19:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:19:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 296 [2022-12-14 13:19:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:19:15,620 INFO L225 Difference]: With dead ends: 34005 [2022-12-14 13:19:15,620 INFO L226 Difference]: Without dead ends: 34003 [2022-12-14 13:19:15,633 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 13:19:15,633 INFO L413 NwaCegarLoop]: 2577 mSDtfsCounter, 2837 mSDsluCounter, 5240 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 7817 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:19:15,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7817 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 13:19:15,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34003 states. [2022-12-14 13:19:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34003 to 34001. [2022-12-14 13:19:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34001 states, 19411 states have (on average 1.2585647313379011) internal successors, (24430), 20277 states have internal predecessors, (24430), 11332 states have call successors, (11332), 3280 states have call predecessors, (11332), 3255 states have return successors, (11334), 10919 states have call predecessors, (11334), 11328 states have call successors, (11334) [2022-12-14 13:19:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34001 states to 34001 states and 47096 transitions. [2022-12-14 13:19:17,900 INFO L78 Accepts]: Start accepts. Automaton has 34001 states and 47096 transitions. Word has length 296 [2022-12-14 13:19:17,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:17,900 INFO L495 AbstractCegarLoop]: Abstraction has 34001 states and 47096 transitions. [2022-12-14 13:19:17,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 13:19:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 34001 states and 47096 transitions. [2022-12-14 13:19:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-12-14 13:19:17,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:17,905 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:17,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 13:19:17,905 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 13:19:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1128282830, now seen corresponding path program 1 times [2022-12-14 13:19:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:17,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923857556] [2022-12-14 13:19:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1507 trivial. 0 not checked. [2022-12-14 13:19:18,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:18,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923857556] [2022-12-14 13:19:18,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923857556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:18,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:18,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:19:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412397191] [2022-12-14 13:19:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:18,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:19:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:18,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:19:18,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:19:18,076 INFO L87 Difference]: Start difference. First operand 34001 states and 47096 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 13:19:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:19:25,454 INFO L93 Difference]: Finished difference Result 83192 states and 115298 transitions. [2022-12-14 13:19:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:19:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 289 [2022-12-14 13:19:25,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:19:25,631 INFO L225 Difference]: With dead ends: 83192 [2022-12-14 13:19:25,631 INFO L226 Difference]: Without dead ends: 49324 [2022-12-14 13:19:25,784 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 13:19:25,784 INFO L413 NwaCegarLoop]: 4963 mSDtfsCounter, 2810 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:19:25,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 7483 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 13:19:25,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49324 states. [2022-12-14 13:19:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49324 to 49226. [2022-12-14 13:19:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49226 states, 28166 states have (on average 1.2592132358162322) internal successors, (35467), 29438 states have internal predecessors, (35467), 16344 states have call successors, (16344), 4750 states have call predecessors, (16344), 4713 states have return successors, (16349), 15728 states have call predecessors, (16349), 16340 states have call successors, (16349) [2022-12-14 13:19:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49226 states to 49226 states and 68160 transitions. [2022-12-14 13:19:29,484 INFO L78 Accepts]: Start accepts. Automaton has 49226 states and 68160 transitions. Word has length 289 [2022-12-14 13:19:29,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:29,484 INFO L495 AbstractCegarLoop]: Abstraction has 49226 states and 68160 transitions. [2022-12-14 13:19:29,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 13:19:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 49226 states and 68160 transitions. [2022-12-14 13:19:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 13:19:29,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:29,488 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 12, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:19:29,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 13:19:29,488 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 13:19:29,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1635660931, now seen corresponding path program 1 times [2022-12-14 13:19:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:29,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832435103] [2022-12-14 13:19:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1627 trivial. 0 not checked. [2022-12-14 13:19:29,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:29,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832435103] [2022-12-14 13:19:29,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832435103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:29,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:29,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:19:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589693599] [2022-12-14 13:19:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:29,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:19:29,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:29,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:19:29,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:19:29,720 INFO L87 Difference]: Start difference. First operand 49226 states and 68160 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 13:19:32,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:19:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:19:37,224 INFO L93 Difference]: Finished difference Result 49232 states and 68165 transitions. [2022-12-14 13:19:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:19:37,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 298 [2022-12-14 13:19:37,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:19:37,382 INFO L225 Difference]: With dead ends: 49232 [2022-12-14 13:19:37,382 INFO L226 Difference]: Without dead ends: 49230 [2022-12-14 13:19:37,403 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 13:19:37,403 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:19:37,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 13:19:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49230 states. [2022-12-14 13:19:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49230 to 49230. [2022-12-14 13:19:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49230 states, 28169 states have (on average 1.2591856295928148) internal successors, (35470), 29441 states have internal predecessors, (35470), 16344 states have call successors, (16344), 4751 states have call predecessors, (16344), 4714 states have return successors, (16349), 15728 states have call predecessors, (16349), 16340 states have call successors, (16349) [2022-12-14 13:19:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49230 states to 49230 states and 68163 transitions. [2022-12-14 13:19:41,701 INFO L78 Accepts]: Start accepts. Automaton has 49230 states and 68163 transitions. Word has length 298 [2022-12-14 13:19:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:41,701 INFO L495 AbstractCegarLoop]: Abstraction has 49230 states and 68163 transitions. [2022-12-14 13:19:41,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 13:19:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 49230 states and 68163 transitions. [2022-12-14 13:19:41,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-14 13:19:41,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:41,708 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 13, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:19:41,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 13:19:41,708 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 13:19:41,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:41,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1318770522, now seen corresponding path program 1 times [2022-12-14 13:19:41,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:41,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865922713] [2022-12-14 13:19:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:41,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-12-14 13:19:42,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:42,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865922713] [2022-12-14 13:19:42,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865922713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:42,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:42,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:19:42,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961261349] [2022-12-14 13:19:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:42,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:19:42,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:42,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:19:42,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:19:42,042 INFO L87 Difference]: Start difference. First operand 49230 states and 68163 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 13:19:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:19:48,318 INFO L93 Difference]: Finished difference Result 49751 states and 68655 transitions. [2022-12-14 13:19:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:19:48,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 303 [2022-12-14 13:19:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:19:48,476 INFO L225 Difference]: With dead ends: 49751 [2022-12-14 13:19:48,476 INFO L226 Difference]: Without dead ends: 49749 [2022-12-14 13:19:48,497 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 13:19:48,497 INFO L413 NwaCegarLoop]: 2556 mSDtfsCounter, 2838 mSDsluCounter, 5147 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 7703 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:19:48,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2842 Valid, 7703 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 13:19:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49749 states. [2022-12-14 13:19:52,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49749 to 49747. [2022-12-14 13:19:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49747 states, 28442 states have (on average 1.25669784122073) internal successors, (35743), 29714 states have internal predecessors, (35743), 16452 states have call successors, (16452), 4887 states have call predecessors, (16452), 4850 states have return successors, (16457), 15836 states have call predecessors, (16457), 16448 states have call successors, (16457) [2022-12-14 13:19:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49747 states to 49747 states and 68652 transitions. [2022-12-14 13:19:52,716 INFO L78 Accepts]: Start accepts. Automaton has 49747 states and 68652 transitions. Word has length 303 [2022-12-14 13:19:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:19:52,716 INFO L495 AbstractCegarLoop]: Abstraction has 49747 states and 68652 transitions. [2022-12-14 13:19:52,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 13:19:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 49747 states and 68652 transitions. [2022-12-14 13:19:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-12-14 13:19:52,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:19:52,721 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 14, 13, 13, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:19:52,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 13:19:52,721 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 13:19:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:19:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash -316164899, now seen corresponding path program 1 times [2022-12-14 13:19:52,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:19:52,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187878144] [2022-12-14 13:19:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:19:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:19:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:19:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked. [2022-12-14 13:19:52,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:19:52,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187878144] [2022-12-14 13:19:52,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187878144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:19:52,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:19:52,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:19:52,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751809498] [2022-12-14 13:19:52,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:19:52,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:19:52,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:19:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:19:52,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:19:52,978 INFO L87 Difference]: Start difference. First operand 49747 states and 68652 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 13:20:00,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:20:00,361 INFO L93 Difference]: Finished difference Result 49753 states and 68657 transitions. [2022-12-14 13:20:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:20:00,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 308 [2022-12-14 13:20:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:20:00,514 INFO L225 Difference]: With dead ends: 49753 [2022-12-14 13:20:00,514 INFO L226 Difference]: Without dead ends: 49751 [2022-12-14 13:20:00,534 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 13:20:00,534 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:20:00,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 13:20:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49751 states. [2022-12-14 13:20:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49751 to 49751. [2022-12-14 13:20:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49751 states, 28445 states have (on average 1.2566707681490596) internal successors, (35746), 29717 states have internal predecessors, (35746), 16452 states have call successors, (16452), 4888 states have call predecessors, (16452), 4851 states have return successors, (16457), 15836 states have call predecessors, (16457), 16448 states have call successors, (16457) [2022-12-14 13:20:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49751 states to 49751 states and 68655 transitions. [2022-12-14 13:20:04,466 INFO L78 Accepts]: Start accepts. Automaton has 49751 states and 68655 transitions. Word has length 308 [2022-12-14 13:20:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:20:04,466 INFO L495 AbstractCegarLoop]: Abstraction has 49751 states and 68655 transitions. [2022-12-14 13:20:04,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 13:20:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 49751 states and 68655 transitions. [2022-12-14 13:20:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-12-14 13:20:04,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:20:04,471 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 15, 14, 14, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:20:04,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 13:20:04,471 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 13:20:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:20:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash 131913847, now seen corresponding path program 1 times [2022-12-14 13:20:04,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:20:04,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242657463] [2022-12-14 13:20:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:20:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:20:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:20:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1779 trivial. 0 not checked. [2022-12-14 13:20:04,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:20:04,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242657463] [2022-12-14 13:20:04,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242657463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:20:04,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:20:04,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:20:04,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159743354] [2022-12-14 13:20:04,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:20:04,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:20:04,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:20:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:20:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:20:04,709 INFO L87 Difference]: Start difference. First operand 49751 states and 68655 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 13:20:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:20:11,842 INFO L93 Difference]: Finished difference Result 49757 states and 68660 transitions. [2022-12-14 13:20:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:20:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 317 [2022-12-14 13:20:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:20:11,996 INFO L225 Difference]: With dead ends: 49757 [2022-12-14 13:20:11,996 INFO L226 Difference]: Without dead ends: 49755 [2022-12-14 13:20:12,014 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 13:20:12,015 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2882 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:20:12,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 13:20:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49755 states. [2022-12-14 13:20:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49755 to 49755. [2022-12-14 13:20:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49755 states, 28448 states have (on average 1.2566437007874016) internal successors, (35749), 29720 states have internal predecessors, (35749), 16452 states have call successors, (16452), 4889 states have call predecessors, (16452), 4852 states have return successors, (16457), 15836 states have call predecessors, (16457), 16448 states have call successors, (16457) [2022-12-14 13:20:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49755 states to 49755 states and 68658 transitions. [2022-12-14 13:20:16,338 INFO L78 Accepts]: Start accepts. Automaton has 49755 states and 68658 transitions. Word has length 317 [2022-12-14 13:20:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:20:16,338 INFO L495 AbstractCegarLoop]: Abstraction has 49755 states and 68658 transitions. [2022-12-14 13:20:16,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 13:20:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 49755 states and 68658 transitions. [2022-12-14 13:20:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-12-14 13:20:16,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:20:16,344 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 16, 15, 15, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:20:16,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 13:20:16,344 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 13:20:16,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:20:16,344 INFO L85 PathProgramCache]: Analyzing trace with hash 275977789, now seen corresponding path program 1 times [2022-12-14 13:20:16,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:20:16,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261627505] [2022-12-14 13:20:16,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:20:16,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:20:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:20:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1857 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-12-14 13:20:16,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:20:16,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261627505] [2022-12-14 13:20:16,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261627505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:20:16,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:20:16,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:20:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787521373] [2022-12-14 13:20:16,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:20:16,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:20:16,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:20:16,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:20:16,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:20:16,632 INFO L87 Difference]: Start difference. First operand 49755 states and 68658 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 13:20:23,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:20:23,169 INFO L93 Difference]: Finished difference Result 49761 states and 68663 transitions. [2022-12-14 13:20:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:20:23,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 318 [2022-12-14 13:20:23,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:20:23,328 INFO L225 Difference]: With dead ends: 49761 [2022-12-14 13:20:23,328 INFO L226 Difference]: Without dead ends: 49757 [2022-12-14 13:20:23,349 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 13:20:23,349 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:20:23,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 13:20:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49757 states. [2022-12-14 13:20:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49757 to 49757. [2022-12-14 13:20:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49757 states, 28450 states have (on average 1.2565905096660808) internal successors, (35750), 29721 states have internal predecessors, (35750), 16452 states have call successors, (16452), 4890 states have call predecessors, (16452), 4852 states have return successors, (16457), 15836 states have call predecessors, (16457), 16448 states have call successors, (16457) [2022-12-14 13:20:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49757 states to 49757 states and 68659 transitions. [2022-12-14 13:20:27,715 INFO L78 Accepts]: Start accepts. Automaton has 49757 states and 68659 transitions. Word has length 318 [2022-12-14 13:20:27,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:20:27,715 INFO L495 AbstractCegarLoop]: Abstraction has 49757 states and 68659 transitions. [2022-12-14 13:20:27,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 13:20:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 49757 states and 68659 transitions. [2022-12-14 13:20:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-14 13:20:27,721 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:20:27,721 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:20:27,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 13:20:27,722 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 13:20:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:20:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1668609600, now seen corresponding path program 1 times [2022-12-14 13:20:27,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:20:27,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359754654] [2022-12-14 13:20:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:20:27,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:20:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:20:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-12-14 13:20:27,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:20:27,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359754654] [2022-12-14 13:20:27,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359754654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:20:27,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:20:27,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:20:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487902508] [2022-12-14 13:20:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:20:27,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:20:27,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:20:27,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:20:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:20:27,880 INFO L87 Difference]: Start difference. First operand 49757 states and 68659 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 13:20:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:20:37,912 INFO L93 Difference]: Finished difference Result 119805 states and 165483 transitions. [2022-12-14 13:20:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:20:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 313 [2022-12-14 13:20:37,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:20:38,160 INFO L225 Difference]: With dead ends: 119805 [2022-12-14 13:20:38,160 INFO L226 Difference]: Without dead ends: 70181 [2022-12-14 13:20:38,344 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 13:20:38,344 INFO L413 NwaCegarLoop]: 4858 mSDtfsCounter, 2694 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 7350 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:20:38,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 7350 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 13:20:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70181 states. [2022-12-14 13:20:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70181 to 70077. [2022-12-14 13:20:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70077 states, 40173 states have (on average 1.2531799965150723) internal successors, (50344), 41949 states have internal predecessors, (50344), 23018 states have call successors, (23018), 6936 states have call predecessors, (23018), 6883 states have return successors, (23023), 22159 states have call predecessors, (23023), 23014 states have call successors, (23023) [2022-12-14 13:20:45,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70077 states to 70077 states and 96385 transitions. [2022-12-14 13:20:45,630 INFO L78 Accepts]: Start accepts. Automaton has 70077 states and 96385 transitions. Word has length 313 [2022-12-14 13:20:45,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:20:45,630 INFO L495 AbstractCegarLoop]: Abstraction has 70077 states and 96385 transitions. [2022-12-14 13:20:45,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 13:20:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 70077 states and 96385 transitions. [2022-12-14 13:20:45,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 13:20:45,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:20:45,636 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 8, 8, 3, 3, 3, 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] [2022-12-14 13:20:45,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 13:20:45,636 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 13:20:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:20:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash -271242304, now seen corresponding path program 1 times [2022-12-14 13:20:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:20:45,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594005886] [2022-12-14 13:20:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:20:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:20:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:20:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1580 trivial. 0 not checked. [2022-12-14 13:20:46,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:20:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594005886] [2022-12-14 13:20:46,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594005886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:20:46,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:20:46,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:20:46,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330293501] [2022-12-14 13:20:46,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:20:46,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:20:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:20:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:20:46,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:20:46,121 INFO L87 Difference]: Start difference. First operand 70077 states and 96385 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 13:20:50,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:21:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:21:03,735 INFO L93 Difference]: Finished difference Result 132716 states and 183761 transitions. [2022-12-14 13:21:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:21:03,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 325 [2022-12-14 13:21:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:21:04,231 INFO L225 Difference]: With dead ends: 132716 [2022-12-14 13:21:04,231 INFO L226 Difference]: Without dead ends: 132714 [2022-12-14 13:21:04,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 13:21:04,284 INFO L413 NwaCegarLoop]: 3803 mSDtfsCounter, 2685 mSDsluCounter, 10060 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 13863 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:21:04,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 13863 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2135 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 13:21:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132714 states. [2022-12-14 13:21:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132714 to 132558. [2022-12-14 13:21:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132558 states, 76147 states have (on average 1.2564776025319448) internal successors, (95677), 79699 states have internal predecessors, (95677), 43580 states have call successors, (43580), 13051 states have call predecessors, (43580), 12828 states have return successors, (44304), 41561 states have call predecessors, (44304), 43576 states have call successors, (44304) [2022-12-14 13:21:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132558 states to 132558 states and 183561 transitions. [2022-12-14 13:21:16,697 INFO L78 Accepts]: Start accepts. Automaton has 132558 states and 183561 transitions. Word has length 325 [2022-12-14 13:21:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:21:16,697 INFO L495 AbstractCegarLoop]: Abstraction has 132558 states and 183561 transitions. [2022-12-14 13:21:16,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 13:21:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 132558 states and 183561 transitions. [2022-12-14 13:21:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-12-14 13:21:16,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:16,703 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 17, 16, 16, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:21:16,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 13:21:16,703 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 13:21:16,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1603048059, now seen corresponding path program 1 times [2022-12-14 13:21:16,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:16,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846853061] [2022-12-14 13:21:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-12-14 13:21:16,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:16,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846853061] [2022-12-14 13:21:16,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846853061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:21:16,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:21:16,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:21:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8632329] [2022-12-14 13:21:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:21:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:21:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:21:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:21:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:21:16,951 INFO L87 Difference]: Start difference. First operand 132558 states and 183561 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 13:21:20,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 13:21:33,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:21:33,073 INFO L93 Difference]: Finished difference Result 132558 states and 183561 transitions. [2022-12-14 13:21:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:21:33,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 326 [2022-12-14 13:21:33,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:21:33,552 INFO L225 Difference]: With dead ends: 132558 [2022-12-14 13:21:33,552 INFO L226 Difference]: Without dead ends: 131642 [2022-12-14 13:21:33,611 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 13:21:33,612 INFO L413 NwaCegarLoop]: 2545 mSDtfsCounter, 2878 mSDsluCounter, 5069 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2878 SdHoareTripleChecker+Valid, 7614 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:21:33,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2878 Valid, 7614 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 13:21:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131642 states. [2022-12-14 13:21:46,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131642 to 131642. [2022-12-14 13:21:46,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131642 states, 75952 states have (on average 1.2528702338318938) internal successors, (95158), 79180 states have internal predecessors, (95158), 42912 states have call successors, (42912), 12925 states have call predecessors, (42912), 12776 states have return successors, (43640), 41290 states have call predecessors, (43640), 42912 states have call successors, (43640) [2022-12-14 13:21:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131642 states to 131642 states and 181710 transitions. [2022-12-14 13:21:46,671 INFO L78 Accepts]: Start accepts. Automaton has 131642 states and 181710 transitions. Word has length 326 [2022-12-14 13:21:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:21:46,671 INFO L495 AbstractCegarLoop]: Abstraction has 131642 states and 181710 transitions. [2022-12-14 13:21:46,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 13:21:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 131642 states and 181710 transitions. [2022-12-14 13:21:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-12-14 13:21:46,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:46,685 INFO L195 NwaCegarLoop]: trace histogram [28, 18, 18, 18, 18, 18, 18, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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] [2022-12-14 13:21:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 13:21:46,685 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 13:21:46,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash 664193366, now seen corresponding path program 1 times [2022-12-14 13:21:46,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:46,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297664326] [2022-12-14 13:21:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:46,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-12-14 13:21:46,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:46,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297664326] [2022-12-14 13:21:46,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297664326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:21:46,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:21:46,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:21:46,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839194993] [2022-12-14 13:21:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:21:46,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:21:46,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:21:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:21:46,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:21:46,874 INFO L87 Difference]: Start difference. First operand 131642 states and 181710 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:22:10,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:10,471 INFO L93 Difference]: Finished difference Result 300126 states and 414087 transitions. [2022-12-14 13:22:10,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:22:10,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 361 [2022-12-14 13:22:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:11,123 INFO L225 Difference]: With dead ends: 300126 [2022-12-14 13:22:11,124 INFO L226 Difference]: Without dead ends: 168617 [2022-12-14 13:22:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:22:11,611 INFO L413 NwaCegarLoop]: 4745 mSDtfsCounter, 2598 mSDsluCounter, 11924 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 16669 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:11,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 16669 Invalid, 2753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2752 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 13:22:11,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168617 states. [2022-12-14 13:22:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168617 to 168517. [2022-12-14 13:22:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168517 states, 96953 states have (on average 1.2524419048404898) internal successors, (121428), 101082 states have internal predecessors, (121428), 55024 states have call successors, (55024), 16694 states have call predecessors, (55024), 16538 states have return successors, (55885), 52990 states have call predecessors, (55885), 55024 states have call successors, (55885) [2022-12-14 13:22:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168517 states to 168517 states and 232337 transitions. [2022-12-14 13:22:28,405 INFO L78 Accepts]: Start accepts. Automaton has 168517 states and 232337 transitions. Word has length 361 [2022-12-14 13:22:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:28,406 INFO L495 AbstractCegarLoop]: Abstraction has 168517 states and 232337 transitions. [2022-12-14 13:22:28,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:22:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 168517 states and 232337 transitions. [2022-12-14 13:22:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-12-14 13:22:28,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:28,420 INFO L195 NwaCegarLoop]: trace histogram [28, 18, 18, 18, 18, 18, 18, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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] [2022-12-14 13:22:28,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 13:22:28,421 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 13:22:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash 553898035, now seen corresponding path program 1 times [2022-12-14 13:22:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107385399] [2022-12-14 13:22:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:28,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-12-14 13:22:28,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:28,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107385399] [2022-12-14 13:22:28,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107385399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:28,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:28,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:22:28,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458605292] [2022-12-14 13:22:28,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:28,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:22:28,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:28,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:22:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:22:28,772 INFO L87 Difference]: Start difference. First operand 168517 states and 232337 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:22:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:55,478 INFO L93 Difference]: Finished difference Result 384792 states and 530897 transitions. [2022-12-14 13:22:55,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:22:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 362 [2022-12-14 13:22:55,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:56,551 INFO L225 Difference]: With dead ends: 384792 [2022-12-14 13:22:56,551 INFO L226 Difference]: Without dead ends: 216408 [2022-12-14 13:22:57,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:22:57,132 INFO L413 NwaCegarLoop]: 4617 mSDtfsCounter, 2631 mSDsluCounter, 11660 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 16277 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:57,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2631 Valid, 16277 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 13:22:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216408 states. [2022-12-14 13:23:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216408 to 216308. [2022-12-14 13:23:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216308 states, 123858 states have (on average 1.2479613751231249) internal successors, (154570), 129148 states have internal predecessors, (154570), 71084 states have call successors, (71084), 21535 states have call predecessors, (71084), 21364 states have return successors, (72110), 68546 states have call predecessors, (72110), 71084 states have call successors, (72110) [2022-12-14 13:23:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216308 states to 216308 states and 297764 transitions. [2022-12-14 13:23:18,016 INFO L78 Accepts]: Start accepts. Automaton has 216308 states and 297764 transitions. Word has length 362 [2022-12-14 13:23:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:23:18,017 INFO L495 AbstractCegarLoop]: Abstraction has 216308 states and 297764 transitions. [2022-12-14 13:23:18,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:23:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 216308 states and 297764 transitions. [2022-12-14 13:23:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-12-14 13:23:18,031 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:23:18,031 INFO L195 NwaCegarLoop]: trace histogram [28, 18, 18, 18, 18, 18, 18, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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] [2022-12-14 13:23:18,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 13:23:18,031 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 13:23:18,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:23:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1383891021, now seen corresponding path program 1 times [2022-12-14 13:23:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:23:18,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969291367] [2022-12-14 13:23:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:23:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:23:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:23:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-12-14 13:23:18,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:23:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969291367] [2022-12-14 13:23:18,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969291367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:23:18,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:23:18,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:23:18,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155595358] [2022-12-14 13:23:18,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:23:18,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:23:18,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:23:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:23:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:23:18,403 INFO L87 Difference]: Start difference. First operand 216308 states and 297764 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:23:49,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:23:49,603 INFO L93 Difference]: Finished difference Result 480482 states and 661967 transitions. [2022-12-14 13:23:49,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:23:49,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 363 [2022-12-14 13:23:49,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:23:50,717 INFO L225 Difference]: With dead ends: 480482 [2022-12-14 13:23:50,717 INFO L226 Difference]: Without dead ends: 264307 [2022-12-14 13:23:51,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:23:51,358 INFO L413 NwaCegarLoop]: 4752 mSDtfsCounter, 2625 mSDsluCounter, 11936 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2625 SdHoareTripleChecker+Valid, 16688 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:23:51,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2625 Valid, 16688 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 13:23:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264307 states. [2022-12-14 13:24:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264307 to 264207. [2022-12-14 13:24:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264207 states, 150871 states have (on average 1.2449045873627138) internal successors, (187820), 157322 states have internal predecessors, (187820), 87144 states have call successors, (87144), 26376 states have call predecessors, (87144), 26190 states have return successors, (88335), 84102 states have call predecessors, (88335), 87144 states have call successors, (88335) [2022-12-14 13:24:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264207 states to 264207 states and 363299 transitions. [2022-12-14 13:24:16,531 INFO L78 Accepts]: Start accepts. Automaton has 264207 states and 363299 transitions. Word has length 363 [2022-12-14 13:24:16,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:24:16,531 INFO L495 AbstractCegarLoop]: Abstraction has 264207 states and 363299 transitions. [2022-12-14 13:24:16,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:24:16,531 INFO L276 IsEmpty]: Start isEmpty. Operand 264207 states and 363299 transitions. [2022-12-14 13:24:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-12-14 13:24:16,546 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:24:16,547 INFO L195 NwaCegarLoop]: trace histogram [28, 18, 18, 18, 18, 18, 18, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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] [2022-12-14 13:24:16,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 13:24:16,547 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 13:24:16,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:24:16,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1046655463, now seen corresponding path program 1 times [2022-12-14 13:24:16,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:24:16,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686787572] [2022-12-14 13:24:16,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:24:16,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:24:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:24:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-12-14 13:24:16,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:24:16,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686787572] [2022-12-14 13:24:16,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686787572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:24:16,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:24:16,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:24:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545702914] [2022-12-14 13:24:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:24:16,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:24:16,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:24:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:24:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:24:16,983 INFO L87 Difference]: Start difference. First operand 264207 states and 363299 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:24:51,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:24:51,589 INFO L93 Difference]: Finished difference Result 571228 states and 785313 transitions. [2022-12-14 13:24:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:24:51,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 364 [2022-12-14 13:24:51,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:24:53,138 INFO L225 Difference]: With dead ends: 571228 [2022-12-14 13:24:53,138 INFO L226 Difference]: Without dead ends: 307154 [2022-12-14 13:24:53,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:24:53,923 INFO L413 NwaCegarLoop]: 3455 mSDtfsCounter, 2829 mSDsluCounter, 9185 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 12640 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:24:53,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 12640 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 13:24:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307154 states. [2022-12-14 13:25:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307154 to 307126. [2022-12-14 13:25:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307126 states, 174964 states have (on average 1.2448160764500125) internal successors, (217798), 182472 states have internal predecessors, (217798), 101516 states have call successors, (101516), 30877 states have call predecessors, (101516), 30644 states have return successors, (102804), 97946 states have call predecessors, (102804), 101516 states have call successors, (102804) [2022-12-14 13:25:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307126 states to 307126 states and 422118 transitions. [2022-12-14 13:25:24,457 INFO L78 Accepts]: Start accepts. Automaton has 307126 states and 422118 transitions. Word has length 364 [2022-12-14 13:25:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:25:24,457 INFO L495 AbstractCegarLoop]: Abstraction has 307126 states and 422118 transitions. [2022-12-14 13:25:24,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 13:25:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 307126 states and 422118 transitions. [2022-12-14 13:25:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-12-14 13:25:24,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:24,485 INFO L195 NwaCegarLoop]: trace histogram [30, 18, 18, 18, 18, 18, 18, 7, 7, 7, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-12-14 13:25:24,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 13:25:24,485 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 13:25:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1957359718, now seen corresponding path program 1 times [2022-12-14 13:25:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:25:24,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202415288] [2022-12-14 13:25:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:25:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked. [2022-12-14 13:25:24,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:25:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202415288] [2022-12-14 13:25:24,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202415288] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:25:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976870229] [2022-12-14 13:25:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:24,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:25:24,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:25:24,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:25:24,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:25:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:25,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 2958 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:25:25,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:25:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-12-14 13:25:25,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:25:25,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976870229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:25:25,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:25:25,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 13:25:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662000030] [2022-12-14 13:25:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:25:25,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:25:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:25:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:25:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 13:25:25,528 INFO L87 Difference]: Start difference. First operand 307126 states and 422118 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 13:26:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:26:04,413 INFO L93 Difference]: Finished difference Result 662118 states and 910747 transitions. [2022-12-14 13:26:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:26:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 386 [2022-12-14 13:26:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:26:06,109 INFO L225 Difference]: With dead ends: 662118 [2022-12-14 13:26:06,109 INFO L226 Difference]: Without dead ends: 355125 [2022-12-14 13:26:07,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:26:07,221 INFO L413 NwaCegarLoop]: 3767 mSDtfsCounter, 2643 mSDsluCounter, 9963 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 13730 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:26:07,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 13730 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 13:26:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355125 states. [2022-12-14 13:26:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355125 to 355025. [2022-12-14 13:26:40,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355025 states, 202013 states have (on average 1.2432665224515254) internal successors, (251156), 210682 states have internal predecessors, (251156), 117576 states have call successors, (117576), 35718 states have call predecessors, (117576), 35434 states have return successors, (118993), 113466 states have call predecessors, (118993), 117576 states have call successors, (118993) [2022-12-14 13:26:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355025 states to 355025 states and 487725 transitions. [2022-12-14 13:26:41,904 INFO L78 Accepts]: Start accepts. Automaton has 355025 states and 487725 transitions. Word has length 386 [2022-12-14 13:26:41,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:26:41,905 INFO L495 AbstractCegarLoop]: Abstraction has 355025 states and 487725 transitions. [2022-12-14 13:26:41,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 13:26:41,905 INFO L276 IsEmpty]: Start isEmpty. Operand 355025 states and 487725 transitions. [2022-12-14 13:26:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-12-14 13:26:41,929 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:26:41,929 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 9, 9, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 13:26:41,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:26:42,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f4b9ff-08fe-4eca-9c9f-a3288b23d495/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:26:42,132 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 13:26:42,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:26:42,133 INFO L85 PathProgramCache]: Analyzing trace with hash -787630588, now seen corresponding path program 1 times [2022-12-14 13:26:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:26:42,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493226989] [2022-12-14 13:26:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:26:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:26:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:26:42,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-12-14 13:26:42,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:26:42,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493226989] [2022-12-14 13:26:42,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493226989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:26:42,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:26:42,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:26:42,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655906168] [2022-12-14 13:26:42,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:26:42,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:26:42,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:26:42,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:26:42,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:26:42,370 INFO L87 Difference]: Start difference. First operand 355025 states and 487725 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 13:27:18,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:27:18,840 INFO L93 Difference]: Finished difference Result 715797 states and 997706 transitions. [2022-12-14 13:27:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:27:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 420 [2022-12-14 13:27:18,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:27:20,662 INFO L225 Difference]: With dead ends: 715797 [2022-12-14 13:27:20,662 INFO L226 Difference]: Without dead ends: 360905 [2022-12-14 13:27:21,957 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 13:27:21,958 INFO L413 NwaCegarLoop]: 2499 mSDtfsCounter, 9 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4986 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:27:21,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4986 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 13:27:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360905 states. [2022-12-14 13:27:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360905 to 357377. [2022-12-14 13:27:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357377 states, 203581 states have (on average 1.2433183843285964) internal successors, (253116), 212250 states have internal predecessors, (253116), 118360 states have call successors, (118360), 35718 states have call predecessors, (118360), 35434 states have return successors, (119777), 114250 states have call predecessors, (119777), 118360 states have call successors, (119777)