./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-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:35:17,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:35:17,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:35:17,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:35:17,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:35:17,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:35:17,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:35:17,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:35:17,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:35:17,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:35:17,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:35:17,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:35:17,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:35:17,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:35:17,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:35:17,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:35:17,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:35:17,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:35:17,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:35:17,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:35:17,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:35:17,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:35:17,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:35:17,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:35:17,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:35:17,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:35:17,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:35:17,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:35:17,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:35:17,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:35:17,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:35:17,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:35:17,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:35:17,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:35:17,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:35:17,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:35:17,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:35:17,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:35:17,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:35:17,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:35:17,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:35:17,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:35:17,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:35:17,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:35:17,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:35:17,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:35:17,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:35:17,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:35:17,260 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:35:17,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:35:17,260 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:35:17,260 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:35:17,261 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:35:17,262 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:35:17,262 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:35:17,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:35:17,262 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:35:17,263 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:35:17,263 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:35:17,263 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:35:17,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:35:17,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:35:17,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:35:17,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:35:17,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:35:17,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:35:17,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:35:17,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:35:17,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:35:17,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:35:17,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:35:17,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:17,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:35:17,268 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:35:17,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:35:17,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:35:17,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:35:17,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:35:17,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:35:17,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:35:17,270 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2022-11-26 00:35:17,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:35:17,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:35:17,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:35:17,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:35:17,608 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:35:17,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-26 00:35:20,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:35:21,292 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:35:21,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-26 00:35:21,340 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/data/6996d91d9/2948098055d54321b43e9d5094949151/FLAG618f31a30 [2022-11-26 00:35:21,355 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/data/6996d91d9/2948098055d54321b43e9d5094949151 [2022-11-26 00:35:21,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:35:21,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:35:21,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:21,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:35:21,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:35:21,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:21" (1/1) ... [2022-11-26 00:35:21,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8d52ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:21, skipping insertion in model container [2022-11-26 00:35:21,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:21" (1/1) ... [2022-11-26 00:35:21,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:35:21,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:35:22,367 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:35:22,378 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:35:22,388 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:35:22,400 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:35:22,410 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:35:22,576 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:35:22,583 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:35:22,584 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:35:22,592 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:35:22,601 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:35:22,612 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:35:22,644 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:35:22,652 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:35:22,656 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:35:22,689 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:35:22,699 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-26 00:35:22,736 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:35:22,738 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:35:22,804 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:35:22,805 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:35:22,816 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:35:22,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:22,844 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:35:22,997 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:35:23,147 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:35:23,149 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:35:23,150 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:35:23,151 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:35:23,157 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-26 00:35:23,158 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:35:23,177 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:35:23,179 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:35:23,179 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,180 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,181 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,182 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,187 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,187 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,189 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,193 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:35:23,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:23,207 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:23,211 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:23,213 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:35:23,216 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,217 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,217 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,218 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:23,219 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:35:23,219 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:23,221 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:35:23,223 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:35:23,223 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:35:23,230 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,239 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,244 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,246 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,247 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,248 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,248 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,249 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,249 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,250 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,251 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,251 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,252 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,252 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,253 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,253 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,254 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,256 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,256 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,257 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,257 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,258 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,259 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:23,260 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,261 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,263 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,264 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,264 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,265 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,265 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,266 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,266 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,267 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,267 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:35:23,268 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,269 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,271 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:23,272 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:23,274 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,275 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,275 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,276 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,276 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,278 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,279 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,280 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:35:23,281 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:35:23,287 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,287 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:23,288 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,288 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,289 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,290 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,291 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,294 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:35:23,294 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,295 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,295 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,296 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,297 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,297 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,298 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,300 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,301 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,301 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,307 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,307 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,308 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,309 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,324 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:23,330 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,337 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,341 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,343 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,344 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,346 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,348 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,349 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:35:23,352 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,353 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:23,355 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,356 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:23,357 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,358 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,369 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,371 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,386 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,410 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:23,414 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,418 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,421 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,422 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,423 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:35:23,424 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,425 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,425 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,426 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,426 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,427 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:35:23,427 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,429 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,449 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,452 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,454 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,455 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:23,456 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:35:23,457 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:23,465 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:23,467 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:23,467 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:35:23,467 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:35:23,476 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,477 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:23,480 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:35:23,480 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,488 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,489 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:23,495 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:35:23,496 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:35:23,497 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,499 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,504 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,504 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:23,508 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,509 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,509 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,510 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:35:23,514 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:35:23,514 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:23,519 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:23,520 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:23,521 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:23,526 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:35:23,531 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:35:23,536 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:35:23,541 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:35:23,555 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,556 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,557 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,569 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,571 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,578 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,582 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,582 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,583 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,584 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:35:23,585 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,585 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:23,585 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,591 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:35:23,601 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:35:23,601 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:35:23,607 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:23,617 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:23,895 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:35:23,896 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:35:23,897 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:35:23,902 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:35:23,906 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:35:23,906 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:35:23,923 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:35:23,925 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:35:23,940 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:35:23,940 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:35:23,945 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:35:23,946 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:35:23,947 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:35:23,949 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:35:23,951 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:35:23,951 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:35:23,952 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:35:23,953 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:35:23,953 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:35:23,954 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:35:23,954 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:35:24,004 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:35:24,005 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:35:24,013 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:35:24,511 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-11-26 00:35:24,515 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-11-26 00:35:24,516 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-11-26 00:35:24,516 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-11-26 00:35:24,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:24,612 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:35:24,726 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:35:24,727 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:35:24,727 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:35:24,727 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:35:24,728 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:35:24,738 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:35:24,739 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:35:24,739 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:35:24,741 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:35:24,742 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:35:24,743 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:35:24,745 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:35:24,746 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:35:24,746 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:35:24,748 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:35:24,748 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-26 00:35:24,750 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:35:24,751 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:35:24,753 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:35:24,753 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:35:24,754 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:35:24,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:24,755 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:35:24,765 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:35:24,769 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:35:24,772 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:35:24,772 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:35:24,773 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:35:24,775 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-26 00:35:24,776 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:35:24,779 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:35:24,781 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:35:24,784 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,785 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,785 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,786 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,786 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,787 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,787 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,790 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:35:24,791 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:24,793 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:24,801 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:24,802 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:35:24,802 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,806 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,806 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,807 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:35:24,807 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:35:24,808 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:24,809 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:35:24,809 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:35:24,809 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:35:24,810 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,811 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,811 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,812 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,814 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,814 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,814 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,815 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,815 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,815 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,816 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,816 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,816 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,817 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,818 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,818 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,819 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,819 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,819 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,820 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:24,821 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,821 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,822 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,823 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,824 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,825 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,825 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:35:24,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,826 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,827 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:24,828 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:24,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,829 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,830 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,831 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,832 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,833 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:35:24,833 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:35:24,834 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,835 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:24,835 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,835 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,835 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,836 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,837 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,838 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,838 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:35:24,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,840 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,840 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,841 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,841 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,841 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,843 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,843 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,844 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,845 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,845 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,845 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,847 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:35:24,848 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,858 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,859 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,860 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,860 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,860 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,861 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,861 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:35:24,862 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,862 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:24,864 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,864 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 00:35:24,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,865 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,871 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,872 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,873 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,874 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,877 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:24,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,879 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,880 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,880 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,881 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:35:24,882 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,882 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,882 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,883 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,883 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,884 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:35:24,884 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,916 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,919 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,920 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,922 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,922 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:35:24,923 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:35:24,924 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:24,925 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:24,925 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:35:24,925 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:35:24,926 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:35:24,929 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,929 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:24,930 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:35:24,931 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,933 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,933 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:35:24,934 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:35:24,935 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:35:24,936 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,937 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,937 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,937 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 00:35:24,939 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,939 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,940 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,940 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:35:24,941 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:35:24,942 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 00:35:24,943 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:24,943 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:24,944 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:35:24,944 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:35:24,945 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:35:24,946 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:35:24,946 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:35:24,947 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,947 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,948 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,948 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,949 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,949 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,950 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,951 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,951 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,951 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:35:24,952 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,952 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:35:24,952 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,953 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:35:24,953 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:35:24,954 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:35:24,955 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:35:24,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:35:24,962 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:35:24,963 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:35:24,964 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:35:24,966 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:35:24,969 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:35:24,969 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:35:24,976 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:35:24,978 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:35:24,984 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:35:24,985 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:35:24,989 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:35:24,989 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:35:24,990 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:35:24,991 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:35:24,991 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:35:24,992 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:35:24,992 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:35:24,993 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:35:24,993 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:35:24,993 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:35:24,994 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:35:24,997 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:35:24,997 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:35:24,997 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:35:25,019 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-11-26 00:35:25,019 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-11-26 00:35:25,020 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-11-26 00:35:25,020 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_9e4ce76e-7fad-4612-a953-32270e1b14a9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-11-26 00:35:25,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:25,239 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:35:25,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25 WrapperNode [2022-11-26 00:35:25,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:25,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:25,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:35:25,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:35:25,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,568 INFO L138 Inliner]: procedures = 451, calls = 2191, calls flagged for inlining = 220, calls inlined = 194, statements flattened = 4738 [2022-11-26 00:35:25,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:25,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:35:25,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:35:25,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:35:25,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:35:25,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:35:25,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:35:25,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:35:25,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (1/1) ... [2022-11-26 00:35:25,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:25,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:25,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:35:25,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:35:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-26 00:35:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-26 00:35:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-26 00:35:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-26 00:35:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:35:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:35:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2022-11-26 00:35:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2022-11-26 00:35:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:35:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:35:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:35:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:35:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:35:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:35:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:35:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:35:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:35:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:35:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:35:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:35:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-26 00:35:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-26 00:35:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-11-26 00:35:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-11-26 00:35:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-26 00:35:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-26 00:35:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-26 00:35:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-26 00:35:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:35:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:35:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:35:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:35:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:35:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:35:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:35:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-26 00:35:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-26 00:35:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:35:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:35:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:35:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:35:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-26 00:35:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-26 00:35:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-26 00:35:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-26 00:35:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:35:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:35:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:35:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:35:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:35:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:35:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-26 00:35:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-26 00:35:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:35:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:35:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:35:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2022-11-26 00:35:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2022-11-26 00:35:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:35:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-26 00:35:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-26 00:35:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:35:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:35:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:35:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:35:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:35:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:35:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:35:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:35:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:35:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:35:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-26 00:35:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-26 00:35:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:35:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:35:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2022-11-26 00:35:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2022-11-26 00:35:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-11-26 00:35:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-11-26 00:35:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:35:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:35:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:35:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:35:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:35:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:35:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:35:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:35:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-26 00:35:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-26 00:35:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:35:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:35:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:35:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:35:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:35:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-26 00:35:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-26 00:35:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:35:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:35:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2022-11-26 00:35:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2022-11-26 00:35:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-26 00:35:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-26 00:35:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-26 00:35:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-26 00:35:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-26 00:35:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-26 00:35:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-26 00:35:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-26 00:35:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:35:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:35:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2022-11-26 00:35:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2022-11-26 00:35:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-26 00:35:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-26 00:35:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:35:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:35:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-11-26 00:35:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-11-26 00:35:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:35:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:35:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-26 00:35:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-26 00:35:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:35:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:35:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:35:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:35:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:35:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:35:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:35:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:35:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2022-11-26 00:35:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2022-11-26 00:35:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2022-11-26 00:35:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2022-11-26 00:35:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:35:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:35:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-11-26 00:35:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-11-26 00:35:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:35:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:35:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:35:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:35:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:35:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:35:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-26 00:35:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-26 00:35:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:35:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:35:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:35:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-11-26 00:35:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-11-26 00:35:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2022-11-26 00:35:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2022-11-26 00:35:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:35:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:35:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:35:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2022-11-26 00:35:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2022-11-26 00:35:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-26 00:35:26,050 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-26 00:35:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:35:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:35:26,050 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:35:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:35:26,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:35:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-26 00:35:26,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-26 00:35:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:35:26,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:35:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:35:26,051 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:35:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2022-11-26 00:35:26,052 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2022-11-26 00:35:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:35:26,052 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:35:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:35:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:35:26,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:35:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:35:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:35:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2022-11-26 00:35:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2022-11-26 00:35:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:35:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:35:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-26 00:35:26,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-26 00:35:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:35:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:35:26,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:35:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2022-11-26 00:35:26,055 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2022-11-26 00:35:27,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:35:27,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:35:27,683 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:35:31,037 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:35:31,152 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:35:32,430 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:35:32,431 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:35:32,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:32 BoogieIcfgContainer [2022-11-26 00:35:32,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:35:32,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:35:32,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:35:32,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:35:32,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:35:21" (1/3) ... [2022-11-26 00:35:32,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@968700a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:32, skipping insertion in model container [2022-11-26 00:35:32,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:25" (2/3) ... [2022-11-26 00:35:32,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@968700a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:32, skipping insertion in model container [2022-11-26 00:35:32,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:32" (3/3) ... [2022-11-26 00:35:32,448 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-26 00:35:32,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:35:32,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:35:32,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:35:32,584 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;@5b785e64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:35:32,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:35:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 714 states have (on average 1.2997198879551821) internal successors, (928), 748 states have internal predecessors, (928), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) [2022-11-26 00:35:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-26 00:35:32,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:32,630 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:32,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash 548572248, now seen corresponding path program 1 times [2022-11-26 00:35:32,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:32,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33575906] [2022-11-26 00:35:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:32,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:35:33,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:33,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33575906] [2022-11-26 00:35:33,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33575906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:33,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:33,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407120422] [2022-11-26 00:35:33,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:33,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:33,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:33,638 INFO L87 Difference]: Start difference. First operand has 1244 states, 714 states have (on average 1.2997198879551821) internal successors, (928), 748 states have internal predecessors, (928), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:35:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:36,028 INFO L93 Difference]: Finished difference Result 3619 states and 5297 transitions. [2022-11-26 00:35:36,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-11-26 00:35:36,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:36,083 INFO L225 Difference]: With dead ends: 3619 [2022-11-26 00:35:36,083 INFO L226 Difference]: Without dead ends: 2384 [2022-11-26 00:35:36,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:36,097 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1685 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:36,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3455 Invalid, 529 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:35:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2022-11-26 00:35:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2380. [2022-11-26 00:35:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 1381 states have (on average 1.2932657494569153) internal successors, (1786), 1448 states have internal predecessors, (1786), 828 states have call successors, (828), 169 states have call predecessors, (828), 168 states have return successors, (824), 814 states have call predecessors, (824), 824 states have call successors, (824) [2022-11-26 00:35:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3438 transitions. [2022-11-26 00:35:36,358 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3438 transitions. Word has length 111 [2022-11-26 00:35:36,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:36,360 INFO L495 AbstractCegarLoop]: Abstraction has 2380 states and 3438 transitions. [2022-11-26 00:35:36,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:35:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3438 transitions. [2022-11-26 00:35:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-26 00:35:36,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:36,368 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:36,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:35:36,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash -761116753, now seen corresponding path program 1 times [2022-11-26 00:35:36,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:36,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418013183] [2022-11-26 00:35:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:36,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:35:36,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:36,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418013183] [2022-11-26 00:35:36,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418013183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:36,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:36,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:36,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389534419] [2022-11-26 00:35:36,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:36,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:36,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:36,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:36,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:36,683 INFO L87 Difference]: Start difference. First operand 2380 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:35:38,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:38,618 INFO L93 Difference]: Finished difference Result 6768 states and 9748 transitions. [2022-11-26 00:35:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-11-26 00:35:38,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:38,649 INFO L225 Difference]: With dead ends: 6768 [2022-11-26 00:35:38,649 INFO L226 Difference]: Without dead ends: 4407 [2022-11-26 00:35:38,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:38,661 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 1497 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:38,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3379 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:35:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-11-26 00:35:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4377. [2022-11-26 00:35:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 2542 states have (on average 1.2828481510621559) internal successors, (3261), 2670 states have internal predecessors, (3261), 1515 states have call successors, (1515), 320 states have call predecessors, (1515), 317 states have return successors, (1513), 1482 states have call predecessors, (1513), 1511 states have call successors, (1513) [2022-11-26 00:35:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6289 transitions. [2022-11-26 00:35:38,944 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6289 transitions. Word has length 119 [2022-11-26 00:35:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:38,945 INFO L495 AbstractCegarLoop]: Abstraction has 4377 states and 6289 transitions. [2022-11-26 00:35:38,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:35:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6289 transitions. [2022-11-26 00:35:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-26 00:35:38,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:38,956 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:38,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:35:38,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:38,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1064847864, now seen corresponding path program 1 times [2022-11-26 00:35:38,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:38,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262893806] [2022-11-26 00:35:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:35:39,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:39,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262893806] [2022-11-26 00:35:39,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262893806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:39,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:39,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:39,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860519001] [2022-11-26 00:35:39,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:39,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:39,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:39,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:39,330 INFO L87 Difference]: Start difference. First operand 4377 states and 6289 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:35:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:42,145 INFO L93 Difference]: Finished difference Result 12709 states and 18245 transitions. [2022-11-26 00:35:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:42,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2022-11-26 00:35:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:42,207 INFO L225 Difference]: With dead ends: 12709 [2022-11-26 00:35:42,207 INFO L226 Difference]: Without dead ends: 8351 [2022-11-26 00:35:42,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:42,238 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 1644 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:42,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 3514 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:35:42,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2022-11-26 00:35:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 8317. [2022-11-26 00:35:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8317 states, 4848 states have (on average 1.2807343234323432) internal successors, (6209), 5092 states have internal predecessors, (6209), 2855 states have call successors, (2855), 622 states have call predecessors, (2855), 611 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:35:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 11929 transitions. [2022-11-26 00:35:42,908 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 11929 transitions. Word has length 123 [2022-11-26 00:35:42,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:42,909 INFO L495 AbstractCegarLoop]: Abstraction has 8317 states and 11929 transitions. [2022-11-26 00:35:42,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:35:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 11929 transitions. [2022-11-26 00:35:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-26 00:35:42,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:42,914 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 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] [2022-11-26 00:35:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:35:42,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash 745578719, now seen corresponding path program 1 times [2022-11-26 00:35:42,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:42,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647266697] [2022-11-26 00:35:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-26 00:35:43,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647266697] [2022-11-26 00:35:43,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647266697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:43,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:43,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:35:43,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607517822] [2022-11-26 00:35:43,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:43,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:35:43,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:43,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:35:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:35:43,526 INFO L87 Difference]: Start difference. First operand 8317 states and 11929 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:35:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:45,807 INFO L93 Difference]: Finished difference Result 8323 states and 11934 transitions. [2022-11-26 00:35:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:35:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2022-11-26 00:35:45,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:45,853 INFO L225 Difference]: With dead ends: 8323 [2022-11-26 00:35:45,853 INFO L226 Difference]: Without dead ends: 8321 [2022-11-26 00:35:45,858 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 [2022-11-26 00:35:45,862 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 1731 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:45,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 4558 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:35:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-11-26 00:35:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8321. [2022-11-26 00:35:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 4851 states have (on average 1.2805607091321376) internal successors, (6212), 5095 states have internal predecessors, (6212), 2855 states have call successors, (2855), 623 states have call predecessors, (2855), 612 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:35:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 11932 transitions. [2022-11-26 00:35:46,531 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 11932 transitions. Word has length 153 [2022-11-26 00:35:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:46,534 INFO L495 AbstractCegarLoop]: Abstraction has 8321 states and 11932 transitions. [2022-11-26 00:35:46,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:35:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 11932 transitions. [2022-11-26 00:35:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-26 00:35:46,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:46,540 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:46,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:35:46,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1222224118, now seen corresponding path program 1 times [2022-11-26 00:35:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:46,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704382691] [2022-11-26 00:35:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-26 00:35:47,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704382691] [2022-11-26 00:35:47,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704382691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:47,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:47,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:35:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061583624] [2022-11-26 00:35:47,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:47,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:35:47,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:47,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:35:47,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:35:47,145 INFO L87 Difference]: Start difference. First operand 8321 states and 11932 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:35:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:49,904 INFO L93 Difference]: Finished difference Result 8327 states and 11937 transitions. [2022-11-26 00:35:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:35:49,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2022-11-26 00:35:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:49,968 INFO L225 Difference]: With dead ends: 8327 [2022-11-26 00:35:49,968 INFO L226 Difference]: Without dead ends: 8325 [2022-11-26 00:35:49,975 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 [2022-11-26 00:35:49,976 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:49,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:35:49,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8325 states. [2022-11-26 00:35:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8325 to 8325. [2022-11-26 00:35:50,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8325 states, 4854 states have (on average 1.2803873094355172) internal successors, (6215), 5098 states have internal predecessors, (6215), 2855 states have call successors, (2855), 624 states have call predecessors, (2855), 613 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:35:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8325 states to 8325 states and 11935 transitions. [2022-11-26 00:35:50,717 INFO L78 Accepts]: Start accepts. Automaton has 8325 states and 11935 transitions. Word has length 158 [2022-11-26 00:35:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:50,718 INFO L495 AbstractCegarLoop]: Abstraction has 8325 states and 11935 transitions. [2022-11-26 00:35:50,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:35:50,718 INFO L276 IsEmpty]: Start isEmpty. Operand 8325 states and 11935 transitions. [2022-11-26 00:35:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-26 00:35:50,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:50,725 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:50,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:35:50,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:50,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1914951584, now seen corresponding path program 1 times [2022-11-26 00:35:50,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:50,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422266965] [2022-11-26 00:35:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2022-11-26 00:35:51,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422266965] [2022-11-26 00:35:51,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422266965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:51,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:51,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:35:51,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65667212] [2022-11-26 00:35:51,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:51,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:35:51,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:51,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:35:51,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:35:51,232 INFO L87 Difference]: Start difference. First operand 8325 states and 11935 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:35:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:53,468 INFO L93 Difference]: Finished difference Result 8331 states and 11940 transitions. [2022-11-26 00:35:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:35:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 166 [2022-11-26 00:35:53,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:53,507 INFO L225 Difference]: With dead ends: 8331 [2022-11-26 00:35:53,507 INFO L226 Difference]: Without dead ends: 8329 [2022-11-26 00:35:53,513 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 [2022-11-26 00:35:53,513 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:53,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:35:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-11-26 00:35:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 8329. [2022-11-26 00:35:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8329 states, 4857 states have (on average 1.280214123944822) internal successors, (6218), 5101 states have internal predecessors, (6218), 2855 states have call successors, (2855), 625 states have call predecessors, (2855), 614 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:35:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8329 states to 8329 states and 11938 transitions. [2022-11-26 00:35:54,246 INFO L78 Accepts]: Start accepts. Automaton has 8329 states and 11938 transitions. Word has length 166 [2022-11-26 00:35:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:54,246 INFO L495 AbstractCegarLoop]: Abstraction has 8329 states and 11938 transitions. [2022-11-26 00:35:54,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:35:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 8329 states and 11938 transitions. [2022-11-26 00:35:54,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-26 00:35:54,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:54,253 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:35:54,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:35:54,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:35:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:54,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1488330326, now seen corresponding path program 1 times [2022-11-26 00:35:54,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:54,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298470663] [2022-11-26 00:35:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-26 00:35:54,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:54,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298470663] [2022-11-26 00:35:54,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298470663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:54,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:54,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:35:54,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531651163] [2022-11-26 00:35:54,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:54,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:35:54,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:54,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:35:54,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:35:54,754 INFO L87 Difference]: Start difference. First operand 8329 states and 11938 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:35:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:57,220 INFO L93 Difference]: Finished difference Result 8335 states and 11943 transitions. [2022-11-26 00:35:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:35:57,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2022-11-26 00:35:57,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:57,260 INFO L225 Difference]: With dead ends: 8335 [2022-11-26 00:35:57,260 INFO L226 Difference]: Without dead ends: 8333 [2022-11-26 00:35:57,264 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 [2022-11-26 00:35:57,265 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:57,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:35:57,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8333 states. [2022-11-26 00:35:58,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8333 to 8333. [2022-11-26 00:35:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8333 states, 4860 states have (on average 1.2800411522633746) internal successors, (6221), 5104 states have internal predecessors, (6221), 2855 states have call successors, (2855), 626 states have call predecessors, (2855), 615 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:35:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8333 states to 8333 states and 11941 transitions. [2022-11-26 00:35:58,244 INFO L78 Accepts]: Start accepts. Automaton has 8333 states and 11941 transitions. Word has length 168 [2022-11-26 00:35:58,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:58,245 INFO L495 AbstractCegarLoop]: Abstraction has 8333 states and 11941 transitions. [2022-11-26 00:35:58,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:35:58,245 INFO L276 IsEmpty]: Start isEmpty. Operand 8333 states and 11941 transitions. [2022-11-26 00:35:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-26 00:35:58,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:58,254 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:58,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:35:58,254 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)] === [2022-11-26 00:35:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash 200690139, now seen corresponding path program 1 times [2022-11-26 00:35:58,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:58,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887870880] [2022-11-26 00:35:58,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-11-26 00:35:58,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:58,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887870880] [2022-11-26 00:35:58,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887870880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:58,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:58,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:35:58,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985701526] [2022-11-26 00:35:58,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:58,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:35:58,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:58,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:35:58,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:35:58,751 INFO L87 Difference]: Start difference. First operand 8333 states and 11941 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:36:01,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:01,128 INFO L93 Difference]: Finished difference Result 8339 states and 11946 transitions. [2022-11-26 00:36:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 177 [2022-11-26 00:36:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:01,166 INFO L225 Difference]: With dead ends: 8339 [2022-11-26 00:36:01,166 INFO L226 Difference]: Without dead ends: 8337 [2022-11-26 00:36:01,173 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 [2022-11-26 00:36:01,173 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:01,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:36:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8337 states. [2022-11-26 00:36:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8337 to 8337. [2022-11-26 00:36:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8337 states, 4863 states have (on average 1.279868393995476) internal successors, (6224), 5107 states have internal predecessors, (6224), 2855 states have call successors, (2855), 627 states have call predecessors, (2855), 616 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:36:01,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8337 states to 8337 states and 11944 transitions. [2022-11-26 00:36:01,832 INFO L78 Accepts]: Start accepts. Automaton has 8337 states and 11944 transitions. Word has length 177 [2022-11-26 00:36:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:01,833 INFO L495 AbstractCegarLoop]: Abstraction has 8337 states and 11944 transitions. [2022-11-26 00:36:01,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:36:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8337 states and 11944 transitions. [2022-11-26 00:36:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-26 00:36:01,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:01,841 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:36:01,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:36:01,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1015477322, now seen corresponding path program 1 times [2022-11-26 00:36:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:01,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042055587] [2022-11-26 00:36:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:01,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-11-26 00:36:02,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:02,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042055587] [2022-11-26 00:36:02,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042055587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:02,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:02,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529033433] [2022-11-26 00:36:02,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:02,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:02,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:02,361 INFO L87 Difference]: Start difference. First operand 8337 states and 11944 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:36:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:05,001 INFO L93 Difference]: Finished difference Result 8343 states and 11949 transitions. [2022-11-26 00:36:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 178 [2022-11-26 00:36:05,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:05,039 INFO L225 Difference]: With dead ends: 8343 [2022-11-26 00:36:05,040 INFO L226 Difference]: Without dead ends: 8341 [2022-11-26 00:36:05,046 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 [2022-11-26 00:36:05,048 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:05,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:36:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-11-26 00:36:05,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 8341. [2022-11-26 00:36:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8341 states, 4866 states have (on average 1.2796958487464036) internal successors, (6227), 5110 states have internal predecessors, (6227), 2855 states have call successors, (2855), 628 states have call predecessors, (2855), 617 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-26 00:36:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8341 states to 8341 states and 11947 transitions. [2022-11-26 00:36:05,847 INFO L78 Accepts]: Start accepts. Automaton has 8341 states and 11947 transitions. Word has length 178 [2022-11-26 00:36:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:05,847 INFO L495 AbstractCegarLoop]: Abstraction has 8341 states and 11947 transitions. [2022-11-26 00:36:05,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:36:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 8341 states and 11947 transitions. [2022-11-26 00:36:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-26 00:36:05,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:05,857 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:36:05,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:36:05,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash 817295712, now seen corresponding path program 1 times [2022-11-26 00:36:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:05,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913941487] [2022-11-26 00:36:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-11-26 00:36:06,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:06,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913941487] [2022-11-26 00:36:06,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913941487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:06,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:06,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:06,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895214875] [2022-11-26 00:36:06,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:06,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:06,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:06,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:06,360 INFO L87 Difference]: Start difference. First operand 8341 states and 11947 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:36:08,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:08,724 INFO L93 Difference]: Finished difference Result 8533 states and 12149 transitions. [2022-11-26 00:36:08,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:08,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 186 [2022-11-26 00:36:08,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:08,765 INFO L225 Difference]: With dead ends: 8533 [2022-11-26 00:36:08,765 INFO L226 Difference]: Without dead ends: 8531 [2022-11-26 00:36:08,770 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 [2022-11-26 00:36:08,770 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1692 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:08,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 4657 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:36:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8531 states. [2022-11-26 00:36:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8531 to 8529. [2022-11-26 00:36:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8529 states, 4967 states have (on average 1.2760217435071473) internal successors, (6338), 5219 states have internal predecessors, (6338), 2899 states have call successors, (2899), 671 states have call predecessors, (2899), 660 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-11-26 00:36:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8529 states to 8529 states and 12146 transitions. [2022-11-26 00:36:09,732 INFO L78 Accepts]: Start accepts. Automaton has 8529 states and 12146 transitions. Word has length 186 [2022-11-26 00:36:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:09,734 INFO L495 AbstractCegarLoop]: Abstraction has 8529 states and 12146 transitions. [2022-11-26 00:36:09,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:36:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8529 states and 12146 transitions. [2022-11-26 00:36:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-26 00:36:09,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:09,742 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:36:09,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:36:09,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:09,744 INFO L85 PathProgramCache]: Analyzing trace with hash -714313450, now seen corresponding path program 1 times [2022-11-26 00:36:09,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:09,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591049047] [2022-11-26 00:36:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:09,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:10,215 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-11-26 00:36:10,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:10,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591049047] [2022-11-26 00:36:10,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591049047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:10,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:10,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:10,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24765350] [2022-11-26 00:36:10,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:10,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:10,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:10,219 INFO L87 Difference]: Start difference. First operand 8529 states and 12146 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:36:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:12,292 INFO L93 Difference]: Finished difference Result 8535 states and 12151 transitions. [2022-11-26 00:36:12,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:12,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 188 [2022-11-26 00:36:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:12,335 INFO L225 Difference]: With dead ends: 8535 [2022-11-26 00:36:12,335 INFO L226 Difference]: Without dead ends: 8533 [2022-11-26 00:36:12,341 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 [2022-11-26 00:36:12,341 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:12,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:36:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8533 states. [2022-11-26 00:36:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8533 to 8533. [2022-11-26 00:36:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8533 states, 4970 states have (on average 1.2758551307847084) internal successors, (6341), 5222 states have internal predecessors, (6341), 2899 states have call successors, (2899), 672 states have call predecessors, (2899), 661 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-11-26 00:36:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 12149 transitions. [2022-11-26 00:36:13,187 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 12149 transitions. Word has length 188 [2022-11-26 00:36:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:13,188 INFO L495 AbstractCegarLoop]: Abstraction has 8533 states and 12149 transitions. [2022-11-26 00:36:13,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:36:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 12149 transitions. [2022-11-26 00:36:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-26 00:36:13,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:13,197 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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] [2022-11-26 00:36:13,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:36:13,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1734060005, now seen corresponding path program 1 times [2022-11-26 00:36:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:13,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189028454] [2022-11-26 00:36:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:13,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-11-26 00:36:13,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:13,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189028454] [2022-11-26 00:36:13,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189028454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:13,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:13,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:13,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458078137] [2022-11-26 00:36:13,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:13,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:13,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:13,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:13,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:13,737 INFO L87 Difference]: Start difference. First operand 8533 states and 12149 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:36:15,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:15,876 INFO L93 Difference]: Finished difference Result 8577 states and 12175 transitions. [2022-11-26 00:36:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:15,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 197 [2022-11-26 00:36:15,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:15,909 INFO L225 Difference]: With dead ends: 8577 [2022-11-26 00:36:15,909 INFO L226 Difference]: Without dead ends: 8575 [2022-11-26 00:36:15,916 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 [2022-11-26 00:36:15,916 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1701 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:15,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 4599 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:36:15,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2022-11-26 00:36:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 8573. [2022-11-26 00:36:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8573 states, 4993 states have (on average 1.2745844181854595) internal successors, (6364), 5245 states have internal predecessors, (6364), 2899 states have call successors, (2899), 689 states have call predecessors, (2899), 678 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-11-26 00:36:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 12172 transitions. [2022-11-26 00:36:16,797 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 12172 transitions. Word has length 197 [2022-11-26 00:36:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:16,798 INFO L495 AbstractCegarLoop]: Abstraction has 8573 states and 12172 transitions. [2022-11-26 00:36:16,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:36:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 12172 transitions. [2022-11-26 00:36:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-26 00:36:16,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:16,807 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:16,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:36:16,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash -209053131, now seen corresponding path program 1 times [2022-11-26 00:36:16,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:16,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038088161] [2022-11-26 00:36:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:16,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-11-26 00:36:17,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:17,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038088161] [2022-11-26 00:36:17,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038088161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:17,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:17,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021242152] [2022-11-26 00:36:17,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:17,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:17,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:17,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:17,239 INFO L87 Difference]: Start difference. First operand 8573 states and 12172 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:19,433 INFO L93 Difference]: Finished difference Result 8579 states and 12177 transitions. [2022-11-26 00:36:19,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:19,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 201 [2022-11-26 00:36:19,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:19,461 INFO L225 Difference]: With dead ends: 8579 [2022-11-26 00:36:19,462 INFO L226 Difference]: Without dead ends: 8577 [2022-11-26 00:36:19,465 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 [2022-11-26 00:36:19,466 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:19,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:36:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2022-11-26 00:36:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 8577. [2022-11-26 00:36:20,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 4996 states have (on average 1.2744195356285029) internal successors, (6367), 5248 states have internal predecessors, (6367), 2899 states have call successors, (2899), 690 states have call predecessors, (2899), 679 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-11-26 00:36:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 12175 transitions. [2022-11-26 00:36:20,135 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 12175 transitions. Word has length 201 [2022-11-26 00:36:20,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:20,136 INFO L495 AbstractCegarLoop]: Abstraction has 8577 states and 12175 transitions. [2022-11-26 00:36:20,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 12175 transitions. [2022-11-26 00:36:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-26 00:36:20,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:20,145 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:36:20,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:36:20,145 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1204669243, now seen corresponding path program 1 times [2022-11-26 00:36:20,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:20,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613310880] [2022-11-26 00:36:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2022-11-26 00:36:20,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:20,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613310880] [2022-11-26 00:36:20,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613310880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:20,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:20,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:20,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169660169] [2022-11-26 00:36:20,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:20,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:20,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:20,567 INFO L87 Difference]: Start difference. First operand 8577 states and 12175 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:23,116 INFO L93 Difference]: Finished difference Result 8583 states and 12180 transitions. [2022-11-26 00:36:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:23,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 207 [2022-11-26 00:36:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:23,139 INFO L225 Difference]: With dead ends: 8583 [2022-11-26 00:36:23,139 INFO L226 Difference]: Without dead ends: 8581 [2022-11-26 00:36:23,143 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 [2022-11-26 00:36:23,144 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:23,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:36:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2022-11-26 00:36:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8581. [2022-11-26 00:36:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8581 states, 4999 states have (on average 1.274254850970194) internal successors, (6370), 5251 states have internal predecessors, (6370), 2899 states have call successors, (2899), 691 states have call predecessors, (2899), 680 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-11-26 00:36:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8581 states to 8581 states and 12178 transitions. [2022-11-26 00:36:23,898 INFO L78 Accepts]: Start accepts. Automaton has 8581 states and 12178 transitions. Word has length 207 [2022-11-26 00:36:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:23,898 INFO L495 AbstractCegarLoop]: Abstraction has 8581 states and 12178 transitions. [2022-11-26 00:36:23,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8581 states and 12178 transitions. [2022-11-26 00:36:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-26 00:36:23,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:23,907 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:23,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:36:23,907 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash 51194278, now seen corresponding path program 1 times [2022-11-26 00:36:23,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:23,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332004479] [2022-11-26 00:36:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:23,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-26 00:36:24,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:24,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332004479] [2022-11-26 00:36:24,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332004479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:24,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:24,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:24,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849677504] [2022-11-26 00:36:24,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:24,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:24,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:24,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:24,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:24,267 INFO L87 Difference]: Start difference. First operand 8581 states and 12178 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-26 00:36:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:26,272 INFO L93 Difference]: Finished difference Result 15170 states and 21428 transitions. [2022-11-26 00:36:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 204 [2022-11-26 00:36:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:26,290 INFO L225 Difference]: With dead ends: 15170 [2022-11-26 00:36:26,290 INFO L226 Difference]: Without dead ends: 6608 [2022-11-26 00:36:26,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:26,323 INFO L413 NwaCegarLoop]: 2187 mSDtfsCounter, 1033 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:26,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 3678 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:36:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2022-11-26 00:36:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 6532. [2022-11-26 00:36:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 3868 states have (on average 1.2719751809720785) internal successors, (4920), 4058 states have internal predecessors, (4920), 2103 states have call successors, (2103), 568 states have call predecessors, (2103), 558 states have return successors, (2106), 2034 states have call predecessors, (2106), 2099 states have call successors, (2106) [2022-11-26 00:36:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 9129 transitions. [2022-11-26 00:36:26,900 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 9129 transitions. Word has length 204 [2022-11-26 00:36:26,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 6532 states and 9129 transitions. [2022-11-26 00:36:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-26 00:36:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 9129 transitions. [2022-11-26 00:36:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-26 00:36:26,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:26,906 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:26,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:36:26,906 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:26,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:26,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2007233323, now seen corresponding path program 1 times [2022-11-26 00:36:26,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:26,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555772820] [2022-11-26 00:36:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:26,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2022-11-26 00:36:27,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:27,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555772820] [2022-11-26 00:36:27,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555772820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:27,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:27,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:27,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709842066] [2022-11-26 00:36:27,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:27,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:27,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:27,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:27,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:27,372 INFO L87 Difference]: Start difference. First operand 6532 states and 9129 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:29,347 INFO L93 Difference]: Finished difference Result 6538 states and 9134 transitions. [2022-11-26 00:36:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 211 [2022-11-26 00:36:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:29,364 INFO L225 Difference]: With dead ends: 6538 [2022-11-26 00:36:29,364 INFO L226 Difference]: Without dead ends: 6534 [2022-11-26 00:36:29,367 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 [2022-11-26 00:36:29,368 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:29,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:36:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6534 states. [2022-11-26 00:36:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6534 to 6534. [2022-11-26 00:36:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6534 states, 3870 states have (on average 1.271576227390181) internal successors, (4921), 4059 states have internal predecessors, (4921), 2103 states have call successors, (2103), 569 states have call predecessors, (2103), 558 states have return successors, (2106), 2034 states have call predecessors, (2106), 2099 states have call successors, (2106) [2022-11-26 00:36:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6534 states to 6534 states and 9130 transitions. [2022-11-26 00:36:29,923 INFO L78 Accepts]: Start accepts. Automaton has 6534 states and 9130 transitions. Word has length 211 [2022-11-26 00:36:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:29,924 INFO L495 AbstractCegarLoop]: Abstraction has 6534 states and 9130 transitions. [2022-11-26 00:36:29,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 6534 states and 9130 transitions. [2022-11-26 00:36:29,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-26 00:36:29,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:29,928 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:36:29,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:36:29,928 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1393264219, now seen corresponding path program 1 times [2022-11-26 00:36:29,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:29,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133493214] [2022-11-26 00:36:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-11-26 00:36:30,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:30,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133493214] [2022-11-26 00:36:30,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133493214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:30,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:30,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:30,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869616334] [2022-11-26 00:36:30,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:30,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:30,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:30,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:30,374 INFO L87 Difference]: Start difference. First operand 6534 states and 9130 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:32,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:32,712 INFO L93 Difference]: Finished difference Result 6534 states and 9130 transitions. [2022-11-26 00:36:32,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:32,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 217 [2022-11-26 00:36:32,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:32,734 INFO L225 Difference]: With dead ends: 6534 [2022-11-26 00:36:32,735 INFO L226 Difference]: Without dead ends: 6402 [2022-11-26 00:36:32,739 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 [2022-11-26 00:36:32,740 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1721 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:32,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 4558 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:36:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2022-11-26 00:36:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 6402. [2022-11-26 00:36:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 3819 states have (on average 1.26891856506939) internal successors, (4846), 3984 states have internal predecessors, (4846), 2039 states have call successors, (2039), 547 states have call predecessors, (2039), 542 states have return successors, (2046), 1999 states have call predecessors, (2046), 2039 states have call successors, (2046) [2022-11-26 00:36:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 8931 transitions. [2022-11-26 00:36:33,334 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 8931 transitions. Word has length 217 [2022-11-26 00:36:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:33,335 INFO L495 AbstractCegarLoop]: Abstraction has 6402 states and 8931 transitions. [2022-11-26 00:36:33,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-11-26 00:36:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 8931 transitions. [2022-11-26 00:36:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-26 00:36:33,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:33,341 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:33,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:36:33,342 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)] === [2022-11-26 00:36:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1341698829, now seen corresponding path program 1 times [2022-11-26 00:36:33,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:33,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857047335] [2022-11-26 00:36:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:33,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-26 00:36:33,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:33,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857047335] [2022-11-26 00:36:33,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857047335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:33,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:33,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:33,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251359546] [2022-11-26 00:36:33,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:33,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:33,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:33,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:33,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:33,623 INFO L87 Difference]: Start difference. First operand 6402 states and 8931 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-26 00:36:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:36,183 INFO L93 Difference]: Finished difference Result 14646 states and 20414 transitions. [2022-11-26 00:36:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:36,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 251 [2022-11-26 00:36:36,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:36,201 INFO L225 Difference]: With dead ends: 14646 [2022-11-26 00:36:36,201 INFO L226 Difference]: Without dead ends: 8384 [2022-11-26 00:36:36,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:36,215 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 992 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:36,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 3722 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:36:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-11-26 00:36:37,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8376. [2022-11-26 00:36:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8376 states, 5028 states have (on average 1.2675019888623706) internal successors, (6373), 5237 states have internal predecessors, (6373), 2609 states have call successors, (2609), 742 states have call predecessors, (2609), 737 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-11-26 00:36:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8376 states to 8376 states and 11598 transitions. [2022-11-26 00:36:37,059 INFO L78 Accepts]: Start accepts. Automaton has 8376 states and 11598 transitions. Word has length 251 [2022-11-26 00:36:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:37,059 INFO L495 AbstractCegarLoop]: Abstraction has 8376 states and 11598 transitions. [2022-11-26 00:36:37,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-26 00:36:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 8376 states and 11598 transitions. [2022-11-26 00:36:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-26 00:36:37,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:37,064 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:37,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:36:37,065 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2052663232, now seen corresponding path program 1 times [2022-11-26 00:36:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:37,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737015137] [2022-11-26 00:36:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:37,878 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2022-11-26 00:36:37,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:37,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737015137] [2022-11-26 00:36:37,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737015137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:37,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:37,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:37,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481775117] [2022-11-26 00:36:37,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:37,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:37,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:37,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:37,883 INFO L87 Difference]: Start difference. First operand 8376 states and 11598 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-26 00:36:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:40,328 INFO L93 Difference]: Finished difference Result 8392 states and 11612 transitions. [2022-11-26 00:36:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:40,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 313 [2022-11-26 00:36:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:40,357 INFO L225 Difference]: With dead ends: 8392 [2022-11-26 00:36:40,357 INFO L226 Difference]: Without dead ends: 8390 [2022-11-26 00:36:40,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:36:40,364 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1616 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:40,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 4463 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:36:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8390 states. [2022-11-26 00:36:41,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8390 to 8388. [2022-11-26 00:36:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 5037 states have (on average 1.266428429620806) internal successors, (6379), 5246 states have internal predecessors, (6379), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-11-26 00:36:41,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11604 transitions. [2022-11-26 00:36:41,079 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11604 transitions. Word has length 313 [2022-11-26 00:36:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:41,079 INFO L495 AbstractCegarLoop]: Abstraction has 8388 states and 11604 transitions. [2022-11-26 00:36:41,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-26 00:36:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11604 transitions. [2022-11-26 00:36:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-26 00:36:41,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:41,085 INFO L195 NwaCegarLoop]: trace histogram [17, 11, 11, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:41,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:36:41,085 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:41,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:41,086 INFO L85 PathProgramCache]: Analyzing trace with hash 832926644, now seen corresponding path program 1 times [2022-11-26 00:36:41,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:41,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142163954] [2022-11-26 00:36:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:41,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-11-26 00:36:41,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:41,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142163954] [2022-11-26 00:36:41,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142163954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:41,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:41,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528796224] [2022-11-26 00:36:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:41,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:41,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:41,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:41,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:41,885 INFO L87 Difference]: Start difference. First operand 8388 states and 11604 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-26 00:36:44,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:44,697 INFO L93 Difference]: Finished difference Result 8390 states and 11605 transitions. [2022-11-26 00:36:44,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:44,697 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), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 334 [2022-11-26 00:36:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:44,719 INFO L225 Difference]: With dead ends: 8390 [2022-11-26 00:36:44,719 INFO L226 Difference]: Without dead ends: 8388 [2022-11-26 00:36:44,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:44,723 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 26 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:44,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5890 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:36:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8388 states. [2022-11-26 00:36:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8388 to 8388. [2022-11-26 00:36:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 5037 states have (on average 1.265237244391503) internal successors, (6373), 5246 states have internal predecessors, (6373), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-11-26 00:36:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11598 transitions. [2022-11-26 00:36:45,497 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11598 transitions. Word has length 334 [2022-11-26 00:36:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:45,499 INFO L495 AbstractCegarLoop]: Abstraction has 8388 states and 11598 transitions. [2022-11-26 00:36:45,500 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), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-26 00:36:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11598 transitions. [2022-11-26 00:36:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-26 00:36:45,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:45,517 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:45,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:36:45,518 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:45,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash 383351376, now seen corresponding path program 1 times [2022-11-26 00:36:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:45,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564569680] [2022-11-26 00:36:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2022-11-26 00:36:46,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:46,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564569680] [2022-11-26 00:36:46,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564569680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:46,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:46,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:46,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287789134] [2022-11-26 00:36:46,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:46,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:46,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:46,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:46,210 INFO L87 Difference]: Start difference. First operand 8388 states and 11598 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-26 00:36:48,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:48,213 INFO L93 Difference]: Finished difference Result 16648 states and 23035 transitions. [2022-11-26 00:36:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:48,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 474 [2022-11-26 00:36:48,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:48,240 INFO L225 Difference]: With dead ends: 16648 [2022-11-26 00:36:48,240 INFO L226 Difference]: Without dead ends: 8400 [2022-11-26 00:36:48,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:48,260 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 1 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:48,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2947 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:36:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2022-11-26 00:36:48,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 8392. [2022-11-26 00:36:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 5041 states have (on average 1.265026780400714) internal successors, (6377), 5250 states have internal predecessors, (6377), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-11-26 00:36:48,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 11602 transitions. [2022-11-26 00:36:48,873 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 11602 transitions. Word has length 474 [2022-11-26 00:36:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:48,874 INFO L495 AbstractCegarLoop]: Abstraction has 8392 states and 11602 transitions. [2022-11-26 00:36:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-26 00:36:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 11602 transitions. [2022-11-26 00:36:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-26 00:36:48,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:48,889 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:48,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:36:48,890 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2040116044, now seen corresponding path program 1 times [2022-11-26 00:36:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:48,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380991589] [2022-11-26 00:36:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2022-11-26 00:36:49,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:49,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380991589] [2022-11-26 00:36:49,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380991589] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:49,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131296035] [2022-11-26 00:36:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:49,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:49,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:49,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:36:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:51,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 5196 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:36:51,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2022-11-26 00:36:51,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:36:51,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131296035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:51,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:36:51,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:36:51,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616684416] [2022-11-26 00:36:51,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:51,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:51,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:51,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:51,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:51,259 INFO L87 Difference]: Start difference. First operand 8392 states and 11602 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-11-26 00:36:53,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:53,202 INFO L93 Difference]: Finished difference Result 16760 states and 23215 transitions. [2022-11-26 00:36:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:53,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 479 [2022-11-26 00:36:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:53,224 INFO L225 Difference]: With dead ends: 16760 [2022-11-26 00:36:53,225 INFO L226 Difference]: Without dead ends: 8508 [2022-11-26 00:36:53,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:53,243 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 17 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:53,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2954 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:36:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2022-11-26 00:36:53,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8400. [2022-11-26 00:36:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 5049 states have (on average 1.264606852842147) internal successors, (6385), 5258 states have internal predecessors, (6385), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-11-26 00:36:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 11610 transitions. [2022-11-26 00:36:54,019 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 11610 transitions. Word has length 479 [2022-11-26 00:36:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:54,019 INFO L495 AbstractCegarLoop]: Abstraction has 8400 states and 11610 transitions. [2022-11-26 00:36:54,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-11-26 00:36:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 11610 transitions. [2022-11-26 00:36:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-26 00:36:54,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:54,031 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:54,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:54,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-26 00:36:54,232 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:36:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1364100612, now seen corresponding path program 1 times [2022-11-26 00:36:54,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:54,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467800328] [2022-11-26 00:36:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2022-11-26 00:36:54,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467800328] [2022-11-26 00:36:54,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467800328] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318733071] [2022-11-26 00:36:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:54,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:54,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:54,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:54,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:36:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:56,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 5227 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:36:56,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 1205 trivial. 0 not checked. [2022-11-26 00:36:56,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:36:56,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318733071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:56,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:36:56,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:36:56,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726338226] [2022-11-26 00:36:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:56,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:56,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:56,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:56,649 INFO L87 Difference]: Start difference. First operand 8400 states and 11610 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-26 00:36:59,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:59,349 INFO L93 Difference]: Finished difference Result 20044 states and 27775 transitions. [2022-11-26 00:36:59,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:59,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 484 [2022-11-26 00:36:59,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:59,378 INFO L225 Difference]: With dead ends: 20044 [2022-11-26 00:36:59,378 INFO L226 Difference]: Without dead ends: 11784 [2022-11-26 00:36:59,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:59,400 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 1492 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:59,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 4090 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:36:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11784 states. [2022-11-26 00:37:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11784 to 11781. [2022-11-26 00:37:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 7126 states have (on average 1.2587706988492844) internal successors, (8970), 7412 states have internal predecessors, (8970), 3630 states have call successors, (3630), 1031 states have call predecessors, (3630), 1023 states have return successors, (3641), 3561 states have call predecessors, (3641), 3630 states have call successors, (3641) [2022-11-26 00:37:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 16241 transitions. [2022-11-26 00:37:00,380 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 16241 transitions. Word has length 484 [2022-11-26 00:37:00,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:00,381 INFO L495 AbstractCegarLoop]: Abstraction has 11781 states and 16241 transitions. [2022-11-26 00:37:00,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-26 00:37:00,381 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 16241 transitions. [2022-11-26 00:37:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-11-26 00:37:00,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:00,393 INFO L195 NwaCegarLoop]: trace histogram [25, 17, 17, 11, 11, 11, 11, 11, 11, 6, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:00,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:37:00,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:00,594 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)] === [2022-11-26 00:37:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 976392182, now seen corresponding path program 1 times [2022-11-26 00:37:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:00,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831134648] [2022-11-26 00:37:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:00,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-11-26 00:37:01,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:01,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831134648] [2022-11-26 00:37:01,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831134648] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:01,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70558082] [2022-11-26 00:37:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:01,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:01,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:01,312 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:01,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:37:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:02,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 5288 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:37:02,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:02,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2022-11-26 00:37:02,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:37:02,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70558082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:02,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:37:02,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 00:37:02,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449115782] [2022-11-26 00:37:02,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:02,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:37:02,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:37:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:37:02,985 INFO L87 Difference]: Start difference. First operand 11781 states and 16241 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2022-11-26 00:37:06,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:06,120 INFO L93 Difference]: Finished difference Result 27480 states and 37849 transitions. [2022-11-26 00:37:06,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:37:06,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 504 [2022-11-26 00:37:06,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:06,158 INFO L225 Difference]: With dead ends: 27480 [2022-11-26 00:37:06,158 INFO L226 Difference]: Without dead ends: 15839 [2022-11-26 00:37:06,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:37:06,187 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 1640 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:06,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3111 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:37:06,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15839 states. [2022-11-26 00:37:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15839 to 15836. [2022-11-26 00:37:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15836 states, 9631 states have (on average 1.25957844460596) internal successors, (12131), 10010 states have internal predecessors, (12131), 4811 states have call successors, (4811), 1403 states have call predecessors, (4811), 1392 states have return successors, (4826), 4717 states have call predecessors, (4826), 4811 states have call successors, (4826) [2022-11-26 00:37:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15836 states to 15836 states and 21768 transitions. [2022-11-26 00:37:07,501 INFO L78 Accepts]: Start accepts. Automaton has 15836 states and 21768 transitions. Word has length 504 [2022-11-26 00:37:07,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:07,502 INFO L495 AbstractCegarLoop]: Abstraction has 15836 states and 21768 transitions. [2022-11-26 00:37:07,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2022-11-26 00:37:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15836 states and 21768 transitions. [2022-11-26 00:37:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-11-26 00:37:07,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:07,514 INFO L195 NwaCegarLoop]: trace histogram [25, 17, 17, 11, 11, 11, 11, 11, 11, 6, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:07,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:37:07,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-26 00:37:07,718 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)] === [2022-11-26 00:37:07,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash -107930832, now seen corresponding path program 1 times [2022-11-26 00:37:07,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:07,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758217427] [2022-11-26 00:37:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:07,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-11-26 00:37:08,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:08,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758217427] [2022-11-26 00:37:08,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758217427] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:08,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409956091] [2022-11-26 00:37:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:08,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:08,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:08,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:08,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4ce76e-7fad-4612-a953-32270e1b14a9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:37:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:10,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 5290 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:37:10,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 505 proven. 1 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2022-11-26 00:37:10,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:37:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-11-26 00:37:10,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409956091] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:37:10,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1587932378] [2022-11-26 00:37:10,542 INFO L159 IcfgInterpreter]: Started Sifa with 264 locations of interest [2022-11-26 00:37:10,542 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:37:10,548 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:37:10,553 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:37:10,554 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs