./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:06:56,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:06:56,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:06:56,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:06:56,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:06:56,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:06:56,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:06:56,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:06:56,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:06:56,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:06:56,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:06:56,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:06:56,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:06:56,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:06:56,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:06:56,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:06:56,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:06:56,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:06:56,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:06:56,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:06:56,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:06:56,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:06:56,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:06:56,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:06:56,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:06:56,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:06:56,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:06:56,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:06:56,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:06:56,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:06:56,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:06:56,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:06:56,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:06:56,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:06:56,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:06:56,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:06:56,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:06:56,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:06:56,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:06:56,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:06:56,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:06:56,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:06:56,217 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:06:56,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:06:56,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:06:56,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:06:56,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:06:56,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:06:56,218 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:06:56,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:06:56,219 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:06:56,220 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:06:56,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:06:56,220 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:06:56,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:06:56,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:06:56,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:06:56,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:06:56,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:06:56,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:06:56,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:06:56,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:06:56,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:06:56,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:06:56,224 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2022-12-14 07:06:56,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:06:56,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:06:56,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:06:56,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:06:56,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:06:56,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-12-14 07:06:59,037 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:06:59,532 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:06:59,533 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-12-14 07:06:59,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/data/a10948beb/960906ec44704746bbfc9a0fa705111a/FLAGc65c946e5 [2022-12-14 07:06:59,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/data/a10948beb/960906ec44704746bbfc9a0fa705111a [2022-12-14 07:06:59,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:06:59,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:06:59,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:06:59,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:06:59,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:06:59,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:06:59" (1/1) ... [2022-12-14 07:06:59,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f65b4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:59, skipping insertion in model container [2022-12-14 07:06:59,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:06:59" (1/1) ... [2022-12-14 07:06:59,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:06:59,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:07:00,174 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:07:00,194 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:07:00,410 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:07:00,423 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:07:00,436 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:07:00,550 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 07:07:00,628 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 07:07:00,660 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:07:00,727 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-12-14 07:07:00,759 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,055 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,056 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,057 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,073 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,074 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,074 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,086 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:01,093 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_setup [2022-12-14 07:07:01,094 WARN L623 FunctionHandler]: Unknown extern function cx88_set_scale [2022-12-14 07:07:01,110 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,111 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:01,113 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:01,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,115 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,128 WARN L623 FunctionHandler]: Unknown extern function videobuf_to_dma [2022-12-14 07:07:01,131 WARN L623 FunctionHandler]: Unknown extern function videobuf_iolock [2022-12-14 07:07:01,133 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:01,133 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:01,134 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:01,134 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:01,135 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:01,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,137 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:01,144 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,146 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:01,146 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,149 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,155 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:01,160 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,167 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,173 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,175 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_init [2022-12-14 07:07:01,175 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,175 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_sg_init [2022-12-14 07:07:01,176 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_sg_init [2022-12-14 07:07:01,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,180 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:01,181 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:01,181 WARN L623 FunctionHandler]: Unknown extern function cx88_set_stereo [2022-12-14 07:07:01,183 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,184 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_add [2022-12-14 07:07:01,190 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,191 WARN L623 FunctionHandler]: Unknown extern function videobuf_read_one [2022-12-14 07:07:01,191 WARN L623 FunctionHandler]: Unknown extern function videobuf_read_stream [2022-12-14 07:07:01,197 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,198 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-12-14 07:07:01,198 WARN L623 FunctionHandler]: Unknown extern function videobuf_poll_stream [2022-12-14 07:07:01,199 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,200 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,206 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_cancel [2022-12-14 07:07:01,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:01,207 WARN L623 FunctionHandler]: Unknown extern function videobuf_stop [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_free [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_free [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_del [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_exit [2022-12-14 07:07:01,208 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:01,211 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,217 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_mapper [2022-12-14 07:07:01,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,235 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:01,236 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:01,237 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:01,238 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:01,239 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:01,240 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:01,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,258 WARN L623 FunctionHandler]: Unknown extern function v4l_bound_align_image [2022-12-14 07:07:01,265 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,266 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:07:01,273 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:07:01,279 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:07:01,285 WARN L623 FunctionHandler]: Unknown extern function videobuf_reqbufs [2022-12-14 07:07:01,291 WARN L623 FunctionHandler]: Unknown extern function videobuf_querybuf [2022-12-14 07:07:01,296 WARN L623 FunctionHandler]: Unknown extern function videobuf_qbuf [2022-12-14 07:07:01,301 WARN L623 FunctionHandler]: Unknown extern function videobuf_dqbuf [2022-12-14 07:07:01,307 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,308 WARN L623 FunctionHandler]: Unknown extern function videobuf_streamon [2022-12-14 07:07:01,313 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:01,314 WARN L623 FunctionHandler]: Unknown extern function videobuf_streamoff [2022-12-14 07:07:01,324 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,324 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvnorm [2022-12-14 07:07:01,325 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,343 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,343 WARN L623 FunctionHandler]: Unknown extern function cx88_newstation [2022-12-14 07:07:01,343 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,351 WARN L623 FunctionHandler]: Unknown extern function cx88_get_stereo [2022-12-14 07:07:01,357 WARN L623 FunctionHandler]: Unknown extern function cx88_set_stereo [2022-12-14 07:07:01,365 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,365 WARN L623 FunctionHandler]: Unknown extern function cx88_newstation [2022-12-14 07:07:01,368 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:07:01,369 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:01,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,404 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:01,405 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:07:01,405 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:07:01,406 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,414 WARN L623 FunctionHandler]: Unknown extern function cx88_print_irqbits [2022-12-14 07:07:01,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,415 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:01,416 WARN L623 FunctionHandler]: Unknown extern function cx88_wakeup [2022-12-14 07:07:01,416 WARN L623 FunctionHandler]: Unknown extern function cx88_wakeup [2022-12-14 07:07:01,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,429 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,437 WARN L623 FunctionHandler]: Unknown extern function cx88_core_irq [2022-12-14 07:07:01,437 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,450 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:01,450 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:01,451 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:01,451 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:01,451 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:01,452 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:01,458 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:07:01,459 WARN L623 FunctionHandler]: Unknown extern function cx88_core_get [2022-12-14 07:07:01,459 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,460 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 07:07:01,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,460 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:07:01,461 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:07:01,461 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_stopper [2022-12-14 07:07:01,461 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:07:01,462 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_stopper [2022-12-14 07:07:01,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,463 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-12-14 07:07:01,464 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-12-14 07:07:01,464 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_add_handler [2022-12-14 07:07:01,467 WARN L623 FunctionHandler]: Unknown extern function v4l2_i2c_new_subdev_board [2022-12-14 07:07:01,467 WARN L623 FunctionHandler]: Unknown extern function v4l2_i2c_new_subdev [2022-12-14 07:07:01,469 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-12-14 07:07:01,469 WARN L623 FunctionHandler]: Unknown extern function i2c_new_device [2022-12-14 07:07:01,470 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-12-14 07:07:01,470 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:01,470 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvnorm [2022-12-14 07:07:01,470 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 07:07:01,471 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 07:07:01,471 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:01,472 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,472 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,473 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:01,474 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,474 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,474 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:01,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,476 WARN L623 FunctionHandler]: Unknown extern function kthread_create_on_node [2022-12-14 07:07:01,476 WARN L623 FunctionHandler]: Unknown extern function wake_up_process [2022-12-14 07:07:01,477 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,477 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,477 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:01,478 WARN L623 FunctionHandler]: Unknown extern function cx88_core_put [2022-12-14 07:07:01,478 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:01,484 WARN L623 FunctionHandler]: Unknown extern function kthread_stop [2022-12-14 07:07:01,484 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_stop [2022-12-14 07:07:01,485 WARN L623 FunctionHandler]: Unknown extern function cx88_shutdown [2022-12-14 07:07:01,485 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:01,485 WARN L623 FunctionHandler]: Unknown extern function btcx_riscmem_free [2022-12-14 07:07:01,485 WARN L623 FunctionHandler]: Unknown extern function cx88_core_put [2022-12-14 07:07:01,485 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:01,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,492 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_stop [2022-12-14 07:07:01,492 WARN L623 FunctionHandler]: Unknown extern function cx88_shutdown [2022-12-14 07:07:01,492 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 07:07:01,492 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 07:07:01,493 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 07:07:01,493 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:01,498 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:07:01,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,499 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 07:07:01,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,499 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:01,500 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 07:07:01,500 WARN L623 FunctionHandler]: Unknown extern function cx88_reset [2022-12-14 07:07:01,500 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_start [2022-12-14 07:07:01,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:01,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:02,132 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:07:02,135 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:07:02,135 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:07:02,136 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-12-14 07:07:02,136 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 07:07:02,140 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-12-14 07:07:02,141 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-12-14 07:07:02,142 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 07:07:02,145 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-12-14 07:07:02,146 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-12-14 07:07:02,150 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 07:07:02,158 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:07:02,159 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:07:02,172 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:02,172 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:02,173 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:02,173 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:02,174 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:07:02,174 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:07:02,174 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:02,175 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 07:07:02,175 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 07:07:02,175 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:02,176 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:07:02,176 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:07:02,197 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_setup [2022-12-14 07:07:02,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:02,201 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:02,202 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:02,202 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:07:02,203 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:07:02,203 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:02,214 WARN L623 FunctionHandler]: Unknown extern function videobuf_to_dma [2022-12-14 07:07:02,215 WARN L623 FunctionHandler]: Unknown extern function videobuf_iolock [2022-12-14 07:07:02,215 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:02,216 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:02,221 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:02,222 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:02,222 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:02,228 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:02,239 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:02,239 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:02,240 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:02,280 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 07:07:02,281 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:07:02,290 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:07:02,898 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-12-14 07:07:02,901 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-12-14 07:07:02,901 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-12-14 07:07:02,902 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-12-14 07:07:02,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:07:02,965 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:07:03,065 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:07:03,065 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 07:07:03,067 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:07:03,067 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:07:03,067 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:07:03,068 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 07:07:03,070 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 07:07:03,071 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:07:03,072 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-12-14 07:07:03,073 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,076 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,076 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,077 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,078 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,078 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,079 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,079 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,092 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:03,093 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_setup [2022-12-14 07:07:03,094 WARN L623 FunctionHandler]: Unknown extern function cx88_set_scale [2022-12-14 07:07:03,096 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,097 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:03,098 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:03,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,099 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,119 WARN L623 FunctionHandler]: Unknown extern function videobuf_to_dma [2022-12-14 07:07:03,121 WARN L623 FunctionHandler]: Unknown extern function videobuf_iolock [2022-12-14 07:07:03,122 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,122 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,123 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,123 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,124 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,125 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:03,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,133 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:03,133 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,134 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,135 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:03,136 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,137 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,137 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,138 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,138 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_init [2022-12-14 07:07:03,142 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,142 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_sg_init [2022-12-14 07:07:03,142 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_sg_init [2022-12-14 07:07:03,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,152 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:03,152 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:03,152 WARN L623 FunctionHandler]: Unknown extern function cx88_set_stereo [2022-12-14 07:07:03,161 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,161 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_add [2022-12-14 07:07:03,162 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,165 WARN L623 FunctionHandler]: Unknown extern function videobuf_read_one [2022-12-14 07:07:03,169 WARN L623 FunctionHandler]: Unknown extern function videobuf_read_stream [2022-12-14 07:07:03,170 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,170 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-12-14 07:07:03,173 WARN L623 FunctionHandler]: Unknown extern function videobuf_poll_stream [2022-12-14 07:07:03,173 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,174 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,178 WARN L623 FunctionHandler]: Unknown extern function videobuf_queue_cancel [2022-12-14 07:07:03,178 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:03,178 WARN L623 FunctionHandler]: Unknown extern function videobuf_stop [2022-12-14 07:07:03,178 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_free [2022-12-14 07:07:03,178 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_free [2022-12-14 07:07:03,179 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,179 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_del [2022-12-14 07:07:03,179 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_exit [2022-12-14 07:07:03,179 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:03,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,188 WARN L623 FunctionHandler]: Unknown extern function videobuf_mmap_mapper [2022-12-14 07:07:03,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,193 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:03,205 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:03,208 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:03,212 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:03,216 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_find [2022-12-14 07:07:03,221 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_s_ctrl [2022-12-14 07:07:03,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,235 WARN L623 FunctionHandler]: Unknown extern function v4l_bound_align_image [2022-12-14 07:07:03,239 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,239 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:07:03,243 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:07:03,244 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:07:03,244 WARN L623 FunctionHandler]: Unknown extern function videobuf_reqbufs [2022-12-14 07:07:03,245 WARN L623 FunctionHandler]: Unknown extern function videobuf_querybuf [2022-12-14 07:07:03,245 WARN L623 FunctionHandler]: Unknown extern function videobuf_qbuf [2022-12-14 07:07:03,245 WARN L623 FunctionHandler]: Unknown extern function videobuf_dqbuf [2022-12-14 07:07:03,245 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,249 WARN L623 FunctionHandler]: Unknown extern function videobuf_streamon [2022-12-14 07:07:03,249 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 07:07:03,252 WARN L623 FunctionHandler]: Unknown extern function videobuf_streamoff [2022-12-14 07:07:03,260 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,260 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvnorm [2022-12-14 07:07:03,260 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,278 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,278 WARN L623 FunctionHandler]: Unknown extern function cx88_newstation [2022-12-14 07:07:03,278 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,289 WARN L623 FunctionHandler]: Unknown extern function cx88_get_stereo [2022-12-14 07:07:03,293 WARN L623 FunctionHandler]: Unknown extern function cx88_set_stereo [2022-12-14 07:07:03,306 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,306 WARN L623 FunctionHandler]: Unknown extern function cx88_newstation [2022-12-14 07:07:03,322 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:07:03,322 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvaudio [2022-12-14 07:07:03,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,368 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:03,369 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:07:03,369 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:07:03,369 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,372 WARN L623 FunctionHandler]: Unknown extern function cx88_print_irqbits [2022-12-14 07:07:03,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,373 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:03,374 WARN L623 FunctionHandler]: Unknown extern function cx88_wakeup [2022-12-14 07:07:03,374 WARN L623 FunctionHandler]: Unknown extern function cx88_wakeup [2022-12-14 07:07:03,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,375 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,376 WARN L623 FunctionHandler]: Unknown extern function cx88_core_irq [2022-12-14 07:07:03,377 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,384 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:03,384 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:03,385 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:03,385 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:03,385 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 07:07:03,386 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-12-14 07:07:03,387 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:07:03,387 WARN L623 FunctionHandler]: Unknown extern function cx88_core_get [2022-12-14 07:07:03,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,388 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 07:07:03,388 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,389 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:07:03,389 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:07:03,389 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_stopper [2022-12-14 07:07:03,390 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:07:03,390 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_stopper [2022-12-14 07:07:03,390 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,391 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-12-14 07:07:03,392 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-12-14 07:07:03,392 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_add_handler [2022-12-14 07:07:03,394 WARN L623 FunctionHandler]: Unknown extern function v4l2_i2c_new_subdev_board [2022-12-14 07:07:03,394 WARN L623 FunctionHandler]: Unknown extern function v4l2_i2c_new_subdev [2022-12-14 07:07:03,396 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-12-14 07:07:03,396 WARN L623 FunctionHandler]: Unknown extern function i2c_new_device [2022-12-14 07:07:03,396 WARN L623 FunctionHandler]: Unknown extern function __request_module [2022-12-14 07:07:03,396 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:07:03,396 WARN L623 FunctionHandler]: Unknown extern function cx88_set_tvnorm [2022-12-14 07:07:03,397 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 07:07:03,397 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 07:07:03,397 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:03,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,399 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:03,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,400 WARN L623 FunctionHandler]: Unknown extern function cx88_vdev_init [2022-12-14 07:07:03,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,402 WARN L623 FunctionHandler]: Unknown extern function kthread_create_on_node [2022-12-14 07:07:03,402 WARN L623 FunctionHandler]: Unknown extern function wake_up_process [2022-12-14 07:07:03,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,403 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,403 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:07:03,403 WARN L623 FunctionHandler]: Unknown extern function cx88_core_put [2022-12-14 07:07:03,403 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:03,404 WARN L623 FunctionHandler]: Unknown extern function kthread_stop [2022-12-14 07:07:03,405 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_stop [2022-12-14 07:07:03,405 WARN L623 FunctionHandler]: Unknown extern function cx88_shutdown [2022-12-14 07:07:03,405 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:03,405 WARN L623 FunctionHandler]: Unknown extern function btcx_riscmem_free [2022-12-14 07:07:03,405 WARN L623 FunctionHandler]: Unknown extern function cx88_core_put [2022-12-14 07:07:03,406 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:07:03,406 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,407 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,407 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_stop [2022-12-14 07:07:03,407 WARN L623 FunctionHandler]: Unknown extern function cx88_shutdown [2022-12-14 07:07:03,408 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 07:07:03,408 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 07:07:03,408 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 07:07:03,408 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:03,409 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:07:03,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,409 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 07:07:03,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,410 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:07:03,410 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 07:07:03,410 WARN L623 FunctionHandler]: Unknown extern function cx88_reset [2022-12-14 07:07:03,410 WARN L623 FunctionHandler]: Unknown extern function cx88_ir_start [2022-12-14 07:07:03,411 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,411 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,425 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:07:03,427 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:07:03,427 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:07:03,427 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_poll [2022-12-14 07:07:03,428 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 07:07:03,431 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-12-14 07:07:03,431 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-12-14 07:07:03,432 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 07:07:03,434 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_subscribe_event [2022-12-14 07:07:03,435 WARN L623 FunctionHandler]: Unknown extern function v4l2_event_unsubscribe [2022-12-14 07:07:03,438 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 07:07:03,445 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:07:03,446 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:07:03,458 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:03,459 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:03,459 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:03,459 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:03,460 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:07:03,460 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:07:03,461 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:03,461 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 07:07:03,461 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 07:07:03,461 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:03,462 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:07:03,462 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:07:03,468 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_setup [2022-12-14 07:07:03,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,472 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:03,473 WARN L623 FunctionHandler]: Unknown extern function cx88_sram_channel_dump [2022-12-14 07:07:03,473 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:07:03,474 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:07:03,474 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,480 WARN L623 FunctionHandler]: Unknown extern function videobuf_to_dma [2022-12-14 07:07:03,480 WARN L623 FunctionHandler]: Unknown extern function videobuf_iolock [2022-12-14 07:07:03,480 WARN L623 FunctionHandler]: Unknown extern function cx88_risc_buffer [2022-12-14 07:07:03,481 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:03,500 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 07:07:03,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,502 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:07:03,502 WARN L623 FunctionHandler]: Unknown extern function cx88_free_buffer [2022-12-14 07:07:03,504 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:03,504 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:07:03,504 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 07:07:03,506 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 07:07:03,506 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:07:03,507 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:07:03,523 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-12-14 07:07:03,524 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-12-14 07:07:03,524 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-12-14 07:07:03,524 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_8b7be200-d880-41d9-bfc7-a598b2b164a8/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-12-14 07:07:03,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:07:03,720 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:07:03,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03 WrapperNode [2022-12-14 07:07:03,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:07:03,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:07:03,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:07:03,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:07:03,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:03,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,054 INFO L138 Inliner]: procedures = 539, calls = 4276, calls flagged for inlining = 262, calls inlined = 249, statements flattened = 8526 [2022-12-14 07:07:04,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:07:04,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:07:04,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:07:04,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:07:04,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:07:04,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:07:04,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:07:04,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:07:04,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (1/1) ... [2022-12-14 07:07:04,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:07:04,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:07:04,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:07:04,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:07:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-12-14 07:07:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-12-14 07:07:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 07:07:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 07:07:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-12-14 07:07:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-12-14 07:07:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-12-14 07:07:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_77 [2022-12-14 07:07:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_77 [2022-12-14 07:07:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-12-14 07:07:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:07:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-12-14 07:07:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-12-14 07:07:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-12-14 07:07:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 07:07:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 07:07:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-12-14 07:07:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-12-14 07:07:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-12-14 07:07:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-12-14 07:07:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 07:07:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 07:07:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-12-14 07:07:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 07:07:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-12-14 07:07:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-12-14 07:07:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-12-14 07:07:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 07:07:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 07:07:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 07:07:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 07:07:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-12-14 07:07:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-12-14 07:07:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 07:07:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:07:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-12-14 07:07:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-12-14 07:07:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-12-14 07:07:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-12-14 07:07:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:07:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:07:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-12-14 07:07:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-12-14 07:07:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-12-14 07:07:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure video_poll [2022-12-14 07:07:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure video_poll [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:07:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-12-14 07:07:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 07:07:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 07:07:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_78 [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_78 [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-12-14 07:07:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-12-14 07:07:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 07:07:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-12-14 07:07:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-12-14 07:07:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-12-14 07:07:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:07:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-12-14 07:07:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-12-14 07:07:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 07:07:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 07:07:05,428 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:07:05,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:07:05,720 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:07:28,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 07:07:29,158 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:07:30,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:07:30,331 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 07:07:30,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:07:30 BoogieIcfgContainer [2022-12-14 07:07:30,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:07:30,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:07:30,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:07:30,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:07:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:06:59" (1/3) ... [2022-12-14 07:07:30,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cec94c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:07:30, skipping insertion in model container [2022-12-14 07:07:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:07:03" (2/3) ... [2022-12-14 07:07:30,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cec94c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:07:30, skipping insertion in model container [2022-12-14 07:07:30,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:07:30" (3/3) ... [2022-12-14 07:07:30,342 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-12-14 07:07:30,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:07:30,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 07:07:30,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:07:30,437 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;@6e3d97c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:07:30,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 07:07:30,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 2242 states, 1324 states have (on average 1.3006042296072509) internal successors, (1722), 1340 states have internal predecessors, (1722), 768 states have call successors, (768), 148 states have call predecessors, (768), 147 states have return successors, (761), 760 states have call predecessors, (761), 761 states have call successors, (761) [2022-12-14 07:07:30,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-12-14 07:07:30,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:30,469 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 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] [2022-12-14 07:07:30,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:07:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2068790774, now seen corresponding path program 1 times [2022-12-14 07:07:30,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:30,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236836300] [2022-12-14 07:07:30,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:30,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 9509 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2022-12-14 07:07:31,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:31,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236836300] [2022-12-14 07:07:31,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236836300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:31,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:31,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:07:31,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533444307] [2022-12-14 07:07:31,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:31,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:07:31,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:31,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:07:31,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:31,810 INFO L87 Difference]: Start difference. First operand has 2242 states, 1324 states have (on average 1.3006042296072509) internal successors, (1722), 1340 states have internal predecessors, (1722), 768 states have call successors, (768), 148 states have call predecessors, (768), 147 states have return successors, (761), 760 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 07:07:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:35,220 INFO L93 Difference]: Finished difference Result 6443 states and 9460 transitions. [2022-12-14 07:07:35,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:07:35,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 515 [2022-12-14 07:07:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:35,253 INFO L225 Difference]: With dead ends: 6443 [2022-12-14 07:07:35,253 INFO L226 Difference]: Without dead ends: 4289 [2022-12-14 07:07:35,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:35,268 INFO L413 NwaCegarLoop]: 3454 mSDtfsCounter, 2996 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 6188 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:35,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 6188 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 07:07:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2022-12-14 07:07:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4285. [2022-12-14 07:07:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 2555 states have (on average 1.2962818003913894) internal successors, (3312), 2586 states have internal predecessors, (3312), 1437 states have call successors, (1437), 291 states have call predecessors, (1437), 290 states have return successors, (1433), 1431 states have call predecessors, (1433), 1433 states have call successors, (1433) [2022-12-14 07:07:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 6182 transitions. [2022-12-14 07:07:35,544 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 6182 transitions. Word has length 515 [2022-12-14 07:07:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:35,547 INFO L495 AbstractCegarLoop]: Abstraction has 4285 states and 6182 transitions. [2022-12-14 07:07:35,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 07:07:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 6182 transitions. [2022-12-14 07:07:35,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-12-14 07:07:35,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:35,566 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:35,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:07:35,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:07:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:35,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1344889546, now seen corresponding path program 1 times [2022-12-14 07:07:35,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:35,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441145521] [2022-12-14 07:07:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:35,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-12-14 07:07:36,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:36,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441145521] [2022-12-14 07:07:36,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441145521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:36,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:36,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:07:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423857414] [2022-12-14 07:07:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:36,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:07:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:07:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:36,461 INFO L87 Difference]: Start difference. First operand 4285 states and 6182 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 07:07:41,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:07:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:42,268 INFO L93 Difference]: Finished difference Result 10295 states and 14845 transitions. [2022-12-14 07:07:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:07:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 524 [2022-12-14 07:07:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:42,315 INFO L225 Difference]: With dead ends: 10295 [2022-12-14 07:07:42,315 INFO L226 Difference]: Without dead ends: 6109 [2022-12-14 07:07:42,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:42,337 INFO L413 NwaCegarLoop]: 3496 mSDtfsCounter, 2820 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2820 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:42,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2820 Valid, 6214 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 983 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 07:07:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-12-14 07:07:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 6084. [2022-12-14 07:07:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6084 states, 3657 states have (on average 1.2988788624555647) internal successors, (4750), 3701 states have internal predecessors, (4750), 2001 states have call successors, (2001), 425 states have call predecessors, (2001), 423 states have return successors, (1997), 1989 states have call predecessors, (1997), 1997 states have call successors, (1997) [2022-12-14 07:07:42,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 8748 transitions. [2022-12-14 07:07:42,654 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 8748 transitions. Word has length 524 [2022-12-14 07:07:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:42,655 INFO L495 AbstractCegarLoop]: Abstraction has 6084 states and 8748 transitions. [2022-12-14 07:07:42,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 07:07:42,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 8748 transitions. [2022-12-14 07:07:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-12-14 07:07:42,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:42,672 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 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] [2022-12-14 07:07:42,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:07:42,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:07:42,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:42,673 INFO L85 PathProgramCache]: Analyzing trace with hash -856483081, now seen corresponding path program 1 times [2022-12-14 07:07:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:42,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396058374] [2022-12-14 07:07:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9510 trivial. 0 not checked. [2022-12-14 07:07:43,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:43,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396058374] [2022-12-14 07:07:43,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396058374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:43,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:43,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:07:43,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754851396] [2022-12-14 07:07:43,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:43,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:07:43,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:07:43,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:43,376 INFO L87 Difference]: Start difference. First operand 6084 states and 8748 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, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 07:07:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:46,784 INFO L93 Difference]: Finished difference Result 17874 states and 25729 transitions. [2022-12-14 07:07:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:07:46,785 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, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 535 [2022-12-14 07:07:46,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:46,830 INFO L225 Difference]: With dead ends: 17874 [2022-12-14 07:07:46,830 INFO L226 Difference]: Without dead ends: 11889 [2022-12-14 07:07:46,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:46,850 INFO L413 NwaCegarLoop]: 3450 mSDtfsCounter, 2972 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 6218 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:46,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2972 Valid, 6218 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 07:07:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11889 states. [2022-12-14 07:07:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11889 to 11860. [2022-12-14 07:07:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11860 states, 7159 states have (on average 1.3031149601899708) internal successors, (9329), 7250 states have internal predecessors, (9329), 3860 states have call successors, (3860), 842 states have call predecessors, (3860), 838 states have return successors, (3900), 3831 states have call predecessors, (3900), 3856 states have call successors, (3900) [2022-12-14 07:07:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11860 states to 11860 states and 17089 transitions. [2022-12-14 07:07:47,376 INFO L78 Accepts]: Start accepts. Automaton has 11860 states and 17089 transitions. Word has length 535 [2022-12-14 07:07:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:47,377 INFO L495 AbstractCegarLoop]: Abstraction has 11860 states and 17089 transitions. [2022-12-14 07:07:47,377 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, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 07:07:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 11860 states and 17089 transitions. [2022-12-14 07:07:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-12-14 07:07:47,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:47,389 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:47,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:07:47,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:07:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1219635636, now seen corresponding path program 1 times [2022-12-14 07:07:47,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:47,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362133840] [2022-12-14 07:07:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9514 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9514 trivial. 0 not checked. [2022-12-14 07:07:48,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:48,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362133840] [2022-12-14 07:07:48,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362133840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:48,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:48,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:07:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550197329] [2022-12-14 07:07:48,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:48,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:07:48,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:48,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:07:48,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:48,206 INFO L87 Difference]: Start difference. First operand 11860 states and 17089 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 07:07:50,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:07:54,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:07:55,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:55,072 INFO L93 Difference]: Finished difference Result 34878 states and 50400 transitions. [2022-12-14 07:07:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:07:55,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 541 [2022-12-14 07:07:55,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:55,155 INFO L225 Difference]: With dead ends: 34878 [2022-12-14 07:07:55,155 INFO L226 Difference]: Without dead ends: 23117 [2022-12-14 07:07:55,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:07:55,189 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 2965 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 6302 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:55,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 6302 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 07:07:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2022-12-14 07:07:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 23080. [2022-12-14 07:07:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23080 states, 13993 states have (on average 1.3045093975559208) internal successors, (18254), 14153 states have internal predecessors, (18254), 7446 states have call successors, (7446), 1655 states have call predecessors, (7446), 1638 states have return successors, (7696), 7363 states have call predecessors, (7696), 7442 states have call successors, (7696) [2022-12-14 07:07:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 33396 transitions. [2022-12-14 07:07:56,091 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 33396 transitions. Word has length 541 [2022-12-14 07:07:56,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:56,092 INFO L495 AbstractCegarLoop]: Abstraction has 23080 states and 33396 transitions. [2022-12-14 07:07:56,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 07:07:56,093 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 33396 transitions. [2022-12-14 07:07:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-12-14 07:07:56,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:56,107 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:56,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:07:56,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:07:56,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:56,107 INFO L85 PathProgramCache]: Analyzing trace with hash 757725335, now seen corresponding path program 1 times [2022-12-14 07:07:56,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838779857] [2022-12-14 07:07:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:56,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:07:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9846 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2022-12-14 07:07:57,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:57,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838779857] [2022-12-14 07:07:57,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838779857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:07:57,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:07:57,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:07:57,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166707046] [2022-12-14 07:07:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:07:57,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:07:57,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:57,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:07:57,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:07:57,139 INFO L87 Difference]: Start difference. First operand 23080 states and 33396 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-12-14 07:08:02,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:05,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:05,227 INFO L93 Difference]: Finished difference Result 46031 states and 66589 transitions. [2022-12-14 07:08:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:08:05,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 560 [2022-12-14 07:08:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:05,398 INFO L225 Difference]: With dead ends: 46031 [2022-12-14 07:08:05,399 INFO L226 Difference]: Without dead ends: 46029 [2022-12-14 07:08:05,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:08:05,416 INFO L413 NwaCegarLoop]: 3459 mSDtfsCounter, 3081 mSDsluCounter, 9515 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 12974 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:05,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 12974 Invalid, 1865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1862 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 07:08:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46029 states. [2022-12-14 07:08:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46029 to 46011. [2022-12-14 07:08:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46011 states, 27912 states have (on average 1.305316709658928) internal successors, (36434), 28242 states have internal predecessors, (36434), 14819 states have call successors, (14819), 3311 states have call predecessors, (14819), 3277 states have return successors, (15319), 14641 states have call predecessors, (15319), 14811 states have call successors, (15319) [2022-12-14 07:08:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46011 states to 46011 states and 66572 transitions. [2022-12-14 07:08:07,232 INFO L78 Accepts]: Start accepts. Automaton has 46011 states and 66572 transitions. Word has length 560 [2022-12-14 07:08:07,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:07,237 INFO L495 AbstractCegarLoop]: Abstraction has 46011 states and 66572 transitions. [2022-12-14 07:08:07,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-12-14 07:08:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 46011 states and 66572 transitions. [2022-12-14 07:08:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-12-14 07:08:07,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:07,247 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:07,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:08:07,248 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:08:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:07,248 INFO L85 PathProgramCache]: Analyzing trace with hash 277023328, now seen corresponding path program 1 times [2022-12-14 07:08:07,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:07,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557449829] [2022-12-14 07:08:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:07,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9848 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2022-12-14 07:08:08,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:08,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557449829] [2022-12-14 07:08:08,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557449829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:08,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:08,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:08:08,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482862202] [2022-12-14 07:08:08,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:08,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:08:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:08:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:08,299 INFO L87 Difference]: Start difference. First operand 46011 states and 66572 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 07:08:11,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:14,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:16,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:18,305 INFO L93 Difference]: Finished difference Result 46021 states and 66581 transitions. [2022-12-14 07:08:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:08:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 565 [2022-12-14 07:08:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:18,493 INFO L225 Difference]: With dead ends: 46021 [2022-12-14 07:08:18,493 INFO L226 Difference]: Without dead ends: 46019 [2022-12-14 07:08:18,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:08:18,505 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3081 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:18,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1404 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 07:08:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46019 states. [2022-12-14 07:08:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46019 to 46019. [2022-12-14 07:08:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46019 states, 27918 states have (on average 1.305251092485135) internal successors, (36440), 28248 states have internal predecessors, (36440), 14819 states have call successors, (14819), 3313 states have call predecessors, (14819), 3279 states have return successors, (15319), 14641 states have call predecessors, (15319), 14811 states have call successors, (15319) [2022-12-14 07:08:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46019 states to 46019 states and 66578 transitions. [2022-12-14 07:08:20,137 INFO L78 Accepts]: Start accepts. Automaton has 46019 states and 66578 transitions. Word has length 565 [2022-12-14 07:08:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:20,138 INFO L495 AbstractCegarLoop]: Abstraction has 46019 states and 66578 transitions. [2022-12-14 07:08:20,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 07:08:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 46019 states and 66578 transitions. [2022-12-14 07:08:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-12-14 07:08:20,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:20,147 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:20,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:08:20,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:08:20,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:20,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1775832266, now seen corresponding path program 1 times [2022-12-14 07:08:20,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:20,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446725530] [2022-12-14 07:08:20,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:20,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9851 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9847 trivial. 0 not checked. [2022-12-14 07:08:21,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:21,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446725530] [2022-12-14 07:08:21,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446725530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:21,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:21,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:08:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87476614] [2022-12-14 07:08:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:21,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:08:21,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:08:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:21,162 INFO L87 Difference]: Start difference. First operand 46019 states and 66578 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-12-14 07:08:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:25,221 INFO L93 Difference]: Finished difference Result 46029 states and 66587 transitions. [2022-12-14 07:08:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:08:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 571 [2022-12-14 07:08:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:25,362 INFO L225 Difference]: With dead ends: 46029 [2022-12-14 07:08:25,362 INFO L226 Difference]: Without dead ends: 46027 [2022-12-14 07:08:25,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:08:25,380 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3082 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:25,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 07:08:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46027 states. [2022-12-14 07:08:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46027 to 46027. [2022-12-14 07:08:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46027 states, 27924 states have (on average 1.305185503509526) internal successors, (36446), 28254 states have internal predecessors, (36446), 14819 states have call successors, (14819), 3315 states have call predecessors, (14819), 3281 states have return successors, (15319), 14641 states have call predecessors, (15319), 14811 states have call successors, (15319) [2022-12-14 07:08:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46027 states to 46027 states and 66584 transitions. [2022-12-14 07:08:27,549 INFO L78 Accepts]: Start accepts. Automaton has 46027 states and 66584 transitions. Word has length 571 [2022-12-14 07:08:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:27,550 INFO L495 AbstractCegarLoop]: Abstraction has 46027 states and 66584 transitions. [2022-12-14 07:08:27,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-12-14 07:08:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 46027 states and 66584 transitions. [2022-12-14 07:08:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-12-14 07:08:27,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:27,559 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 3, 3, 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] [2022-12-14 07:08:27,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:08:27,559 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:08:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1877013855, now seen corresponding path program 1 times [2022-12-14 07:08:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:27,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790874498] [2022-12-14 07:08:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9861 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9855 trivial. 0 not checked. [2022-12-14 07:08:28,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790874498] [2022-12-14 07:08:28,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790874498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:28,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:28,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:08:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480142779] [2022-12-14 07:08:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:28,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:08:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:08:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:28,465 INFO L87 Difference]: Start difference. First operand 46027 states and 66584 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 07:08:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:34,869 INFO L93 Difference]: Finished difference Result 46037 states and 66593 transitions. [2022-12-14 07:08:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:08:34,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 576 [2022-12-14 07:08:34,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:35,021 INFO L225 Difference]: With dead ends: 46037 [2022-12-14 07:08:35,021 INFO L226 Difference]: Without dead ends: 46035 [2022-12-14 07:08:35,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:08:35,041 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3082 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:35,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3090 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 07:08:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46035 states. [2022-12-14 07:08:36,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46035 to 46035. [2022-12-14 07:08:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46035 states, 27930 states have (on average 1.3051199427139277) internal successors, (36452), 28260 states have internal predecessors, (36452), 14819 states have call successors, (14819), 3317 states have call predecessors, (14819), 3283 states have return successors, (15319), 14641 states have call predecessors, (15319), 14811 states have call successors, (15319) [2022-12-14 07:08:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46035 states to 46035 states and 66590 transitions. [2022-12-14 07:08:37,200 INFO L78 Accepts]: Start accepts. Automaton has 46035 states and 66590 transitions. Word has length 576 [2022-12-14 07:08:37,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:37,201 INFO L495 AbstractCegarLoop]: Abstraction has 46035 states and 66590 transitions. [2022-12-14 07:08:37,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-12-14 07:08:37,201 INFO L276 IsEmpty]: Start isEmpty. Operand 46035 states and 66590 transitions. [2022-12-14 07:08:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-12-14 07:08:37,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:37,216 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 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] [2022-12-14 07:08:37,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:08:37,216 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:08:37,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash 588033034, now seen corresponding path program 1 times [2022-12-14 07:08:37,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:37,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979980556] [2022-12-14 07:08:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:37,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9845 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9842 trivial. 0 not checked. [2022-12-14 07:08:37,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:37,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979980556] [2022-12-14 07:08:37,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979980556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:37,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:37,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:08:37,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642642221] [2022-12-14 07:08:37,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:37,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:08:37,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:37,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:08:37,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:08:37,819 INFO L87 Difference]: Start difference. First operand 46035 states and 66590 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-12-14 07:08:41,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:43,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:47,155 INFO L93 Difference]: Finished difference Result 92483 states and 133900 transitions. [2022-12-14 07:08:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:08:47,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 575 [2022-12-14 07:08:47,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:47,361 INFO L225 Difference]: With dead ends: 92483 [2022-12-14 07:08:47,361 INFO L226 Difference]: Without dead ends: 61139 [2022-12-14 07:08:47,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:08:47,448 INFO L413 NwaCegarLoop]: 5087 mSDtfsCounter, 2809 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 7803 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:47,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 7803 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1388 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-12-14 07:08:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61139 states. [2022-12-14 07:08:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61139 to 61051. [2022-12-14 07:08:50,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61051 states, 37064 states have (on average 1.3056874595294625) internal successors, (48394), 37510 states have internal predecessors, (48394), 19611 states have call successors, (19611), 4419 states have call predecessors, (19611), 4373 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:08:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61051 states to 61051 states and 88280 transitions. [2022-12-14 07:08:50,380 INFO L78 Accepts]: Start accepts. Automaton has 61051 states and 88280 transitions. Word has length 575 [2022-12-14 07:08:50,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:50,380 INFO L495 AbstractCegarLoop]: Abstraction has 61051 states and 88280 transitions. [2022-12-14 07:08:50,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-12-14 07:08:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 61051 states and 88280 transitions. [2022-12-14 07:08:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-12-14 07:08:50,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:50,392 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:50,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 07:08:50,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:08:50,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1108723570, now seen corresponding path program 1 times [2022-12-14 07:08:50,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482637317] [2022-12-14 07:08:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 9879 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9871 trivial. 0 not checked. [2022-12-14 07:08:51,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:51,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482637317] [2022-12-14 07:08:51,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482637317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:51,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:51,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:08:51,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841295363] [2022-12-14 07:08:51,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:51,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:08:51,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:08:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:08:51,241 INFO L87 Difference]: Start difference. First operand 61051 states and 88280 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-14 07:08:53,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:08:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:59,080 INFO L93 Difference]: Finished difference Result 61061 states and 88289 transitions. [2022-12-14 07:08:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:08:59,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 581 [2022-12-14 07:08:59,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:59,296 INFO L225 Difference]: With dead ends: 61061 [2022-12-14 07:08:59,296 INFO L226 Difference]: Without dead ends: 61059 [2022-12-14 07:08:59,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:08:59,328 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3081 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:59,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 07:08:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61059 states. [2022-12-14 07:09:01,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61059 to 61059. [2022-12-14 07:09:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61059 states, 37070 states have (on average 1.3056379821958457) internal successors, (48400), 37516 states have internal predecessors, (48400), 19611 states have call successors, (19611), 4421 states have call predecessors, (19611), 4375 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:09:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61059 states to 61059 states and 88286 transitions. [2022-12-14 07:09:02,152 INFO L78 Accepts]: Start accepts. Automaton has 61059 states and 88286 transitions. Word has length 581 [2022-12-14 07:09:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:02,153 INFO L495 AbstractCegarLoop]: Abstraction has 61059 states and 88286 transitions. [2022-12-14 07:09:02,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-14 07:09:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 61059 states and 88286 transitions. [2022-12-14 07:09:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-12-14 07:09:02,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:02,165 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 6, 5, 5, 4, 4, 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] [2022-12-14 07:09:02,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:09:02,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:09:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:02,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1004020863, now seen corresponding path program 1 times [2022-12-14 07:09:02,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:02,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734766834] [2022-12-14 07:09:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:02,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9893 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9883 trivial. 0 not checked. [2022-12-14 07:09:03,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:03,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734766834] [2022-12-14 07:09:03,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734766834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:03,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:03,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:09:03,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936590917] [2022-12-14 07:09:03,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:03,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:09:03,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:03,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:09:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:03,297 INFO L87 Difference]: Start difference. First operand 61059 states and 88286 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 07:09:08,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:09:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:12,074 INFO L93 Difference]: Finished difference Result 61083 states and 88306 transitions. [2022-12-14 07:09:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:09:12,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 586 [2022-12-14 07:09:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:12,268 INFO L225 Difference]: With dead ends: 61083 [2022-12-14 07:09:12,268 INFO L226 Difference]: Without dead ends: 61081 [2022-12-14 07:09:12,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:09:12,295 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 3077 mSDsluCounter, 9515 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 12977 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:12,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 12977 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1862 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 07:09:12,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61081 states. [2022-12-14 07:09:14,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61081 to 61063. [2022-12-14 07:09:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61063 states, 37073 states have (on average 1.3056132495347017) internal successors, (48403), 37519 states have internal predecessors, (48403), 19611 states have call successors, (19611), 4422 states have call predecessors, (19611), 4376 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:09:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61063 states to 61063 states and 88289 transitions. [2022-12-14 07:09:15,194 INFO L78 Accepts]: Start accepts. Automaton has 61063 states and 88289 transitions. Word has length 586 [2022-12-14 07:09:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:15,195 INFO L495 AbstractCegarLoop]: Abstraction has 61063 states and 88289 transitions. [2022-12-14 07:09:15,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 07:09:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 61063 states and 88289 transitions. [2022-12-14 07:09:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2022-12-14 07:09:15,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:15,208 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:15,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 07:09:15,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:09:15,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:15,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1335281847, now seen corresponding path program 1 times [2022-12-14 07:09:15,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:15,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545223631] [2022-12-14 07:09:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:15,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9918 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9906 trivial. 0 not checked. [2022-12-14 07:09:15,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:15,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545223631] [2022-12-14 07:09:15,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545223631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:15,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:15,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:09:15,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026600502] [2022-12-14 07:09:15,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:15,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:09:15,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:15,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:09:15,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:16,000 INFO L87 Difference]: Start difference. First operand 61063 states and 88289 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 07:09:21,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:09:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:25,255 INFO L93 Difference]: Finished difference Result 61087 states and 88309 transitions. [2022-12-14 07:09:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:09:25,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 590 [2022-12-14 07:09:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:25,436 INFO L225 Difference]: With dead ends: 61087 [2022-12-14 07:09:25,436 INFO L226 Difference]: Without dead ends: 61085 [2022-12-14 07:09:25,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:09:25,458 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 3076 mSDsluCounter, 9515 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3081 SdHoareTripleChecker+Valid, 12977 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:25,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3081 Valid, 12977 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1862 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 07:09:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61085 states. [2022-12-14 07:09:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61085 to 61067. [2022-12-14 07:09:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61067 states, 37076 states have (on average 1.3055885208760385) internal successors, (48406), 37522 states have internal predecessors, (48406), 19611 states have call successors, (19611), 4423 states have call predecessors, (19611), 4377 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:09:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61067 states to 61067 states and 88292 transitions. [2022-12-14 07:09:28,449 INFO L78 Accepts]: Start accepts. Automaton has 61067 states and 88292 transitions. Word has length 590 [2022-12-14 07:09:28,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:28,450 INFO L495 AbstractCegarLoop]: Abstraction has 61067 states and 88292 transitions. [2022-12-14 07:09:28,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 07:09:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 61067 states and 88292 transitions. [2022-12-14 07:09:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-12-14 07:09:28,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:28,464 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:28,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:09:28,464 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:09:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1178794171, now seen corresponding path program 1 times [2022-12-14 07:09:28,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:28,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393665212] [2022-12-14 07:09:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:28,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 9945 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9931 trivial. 0 not checked. [2022-12-14 07:09:29,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:29,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393665212] [2022-12-14 07:09:29,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393665212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:29,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:29,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:09:29,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461245121] [2022-12-14 07:09:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:29,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:09:29,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:09:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:29,320 INFO L87 Difference]: Start difference. First operand 61067 states and 88292 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 07:09:33,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:09:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:36,795 INFO L93 Difference]: Finished difference Result 61077 states and 88301 transitions. [2022-12-14 07:09:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:09:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 596 [2022-12-14 07:09:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:36,972 INFO L225 Difference]: With dead ends: 61077 [2022-12-14 07:09:36,973 INFO L226 Difference]: Without dead ends: 61075 [2022-12-14 07:09:36,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:09:36,992 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3081 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3085 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:36,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3085 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 07:09:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61075 states. [2022-12-14 07:09:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61075 to 61075. [2022-12-14 07:09:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61075 states, 37082 states have (on average 1.3055390755622673) internal successors, (48412), 37528 states have internal predecessors, (48412), 19611 states have call successors, (19611), 4425 states have call predecessors, (19611), 4379 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:09:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61075 states to 61075 states and 88298 transitions. [2022-12-14 07:09:40,191 INFO L78 Accepts]: Start accepts. Automaton has 61075 states and 88298 transitions. Word has length 596 [2022-12-14 07:09:40,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:40,191 INFO L495 AbstractCegarLoop]: Abstraction has 61075 states and 88298 transitions. [2022-12-14 07:09:40,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 07:09:40,191 INFO L276 IsEmpty]: Start isEmpty. Operand 61075 states and 88298 transitions. [2022-12-14 07:09:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-12-14 07:09:40,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:40,205 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:40,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 07:09:40,206 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:09:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1969200818, now seen corresponding path program 1 times [2022-12-14 07:09:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:40,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238673612] [2022-12-14 07:09:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9975 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9959 trivial. 0 not checked. [2022-12-14 07:09:41,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:41,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238673612] [2022-12-14 07:09:41,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238673612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:41,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:41,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:09:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074043973] [2022-12-14 07:09:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:41,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:09:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:09:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:41,060 INFO L87 Difference]: Start difference. First operand 61075 states and 88298 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 07:09:44,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:09:47,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:09:52,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:52,449 INFO L93 Difference]: Finished difference Result 61085 states and 88307 transitions. [2022-12-14 07:09:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:09:52,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 601 [2022-12-14 07:09:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:52,634 INFO L225 Difference]: With dead ends: 61085 [2022-12-14 07:09:52,634 INFO L226 Difference]: Without dead ends: 61083 [2022-12-14 07:09:52,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:09:52,655 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3081 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:52,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 07:09:52,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61083 states. [2022-12-14 07:09:55,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61083 to 61083. [2022-12-14 07:09:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61083 states, 37088 states have (on average 1.3054896462467644) internal successors, (48418), 37534 states have internal predecessors, (48418), 19611 states have call successors, (19611), 4427 states have call predecessors, (19611), 4381 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:09:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61083 states to 61083 states and 88304 transitions. [2022-12-14 07:09:56,106 INFO L78 Accepts]: Start accepts. Automaton has 61083 states and 88304 transitions. Word has length 601 [2022-12-14 07:09:56,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:56,106 INFO L495 AbstractCegarLoop]: Abstraction has 61083 states and 88304 transitions. [2022-12-14 07:09:56,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 07:09:56,107 INFO L276 IsEmpty]: Start isEmpty. Operand 61083 states and 88304 transitions. [2022-12-14 07:09:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-12-14 07:09:56,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:56,121 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 10, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:56,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 07:09:56,121 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:09:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1235301088, now seen corresponding path program 1 times [2022-12-14 07:09:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:56,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940909717] [2022-12-14 07:09:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:56,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 10008 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9990 trivial. 0 not checked. [2022-12-14 07:09:56,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:56,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940909717] [2022-12-14 07:09:56,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940909717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:56,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:56,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:09:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314988105] [2022-12-14 07:09:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:56,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:09:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:09:56,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:09:56,974 INFO L87 Difference]: Start difference. First operand 61083 states and 88304 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 07:10:02,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:10:04,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:10:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:08,412 INFO L93 Difference]: Finished difference Result 61093 states and 88313 transitions. [2022-12-14 07:10:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:10:08,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 605 [2022-12-14 07:10:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:08,590 INFO L225 Difference]: With dead ends: 61093 [2022-12-14 07:10:08,590 INFO L226 Difference]: Without dead ends: 61091 [2022-12-14 07:10:08,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:10:08,610 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 3081 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:08,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 8249 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1403 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 07:10:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61091 states. [2022-12-14 07:10:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61091 to 61091. [2022-12-14 07:10:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61091 states, 37094 states have (on average 1.3054402329217663) internal successors, (48424), 37540 states have internal predecessors, (48424), 19611 states have call successors, (19611), 4429 states have call predecessors, (19611), 4383 states have return successors, (20275), 19361 states have call predecessors, (20275), 19603 states have call successors, (20275) [2022-12-14 07:10:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61091 states to 61091 states and 88310 transitions. [2022-12-14 07:10:12,192 INFO L78 Accepts]: Start accepts. Automaton has 61091 states and 88310 transitions. Word has length 605 [2022-12-14 07:10:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:12,192 INFO L495 AbstractCegarLoop]: Abstraction has 61091 states and 88310 transitions. [2022-12-14 07:10:12,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 07:10:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 61091 states and 88310 transitions. [2022-12-14 07:10:12,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-12-14 07:10:12,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:12,209 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:12,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 07:10:12,209 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:10:12,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:12,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1978956206, now seen corresponding path program 1 times [2022-12-14 07:10:12,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:12,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267431807] [2022-12-14 07:10:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:12,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10047 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10027 trivial. 0 not checked. [2022-12-14 07:10:13,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:13,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267431807] [2022-12-14 07:10:13,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267431807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:13,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:13,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:10:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626616840] [2022-12-14 07:10:13,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:13,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:10:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:10:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:10:13,053 INFO L87 Difference]: Start difference. First operand 61091 states and 88310 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-12-14 07:10:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:20,752 INFO L93 Difference]: Finished difference Result 63869 states and 91695 transitions. [2022-12-14 07:10:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:10:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 611 [2022-12-14 07:10:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:20,948 INFO L225 Difference]: With dead ends: 63869 [2022-12-14 07:10:20,948 INFO L226 Difference]: Without dead ends: 63865 [2022-12-14 07:10:20,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:10:20,971 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 2822 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 8666 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:20,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 8666 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 07:10:21,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63865 states. [2022-12-14 07:10:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63865 to 63865. [2022-12-14 07:10:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63865 states, 38523 states have (on average 1.2949147262674248) internal successors, (49884), 38984 states have internal predecessors, (49884), 20571 states have call successors, (20571), 4815 states have call predecessors, (20571), 4768 states have return successors, (21235), 20305 states have call predecessors, (21235), 20563 states have call successors, (21235) [2022-12-14 07:10:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63865 states to 63865 states and 91690 transitions. [2022-12-14 07:10:24,928 INFO L78 Accepts]: Start accepts. Automaton has 63865 states and 91690 transitions. Word has length 611 [2022-12-14 07:10:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:24,928 INFO L495 AbstractCegarLoop]: Abstraction has 63865 states and 91690 transitions. [2022-12-14 07:10:24,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-12-14 07:10:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 63865 states and 91690 transitions. [2022-12-14 07:10:24,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-12-14 07:10:24,947 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:24,947 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 12, 11, 11, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:24,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 07:10:24,947 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:10:24,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash -894103296, now seen corresponding path program 1 times [2022-12-14 07:10:24,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:24,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438196049] [2022-12-14 07:10:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10088 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10066 trivial. 0 not checked. [2022-12-14 07:10:25,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:25,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438196049] [2022-12-14 07:10:25,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438196049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:25,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:25,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:10:25,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373555860] [2022-12-14 07:10:25,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:25,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:10:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:25,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:10:25,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:10:25,837 INFO L87 Difference]: Start difference. First operand 63865 states and 91690 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2022-12-14 07:10:31,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:10:36,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:36,410 INFO L93 Difference]: Finished difference Result 63883 states and 91705 transitions. [2022-12-14 07:10:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:10:36,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 615 [2022-12-14 07:10:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:36,602 INFO L225 Difference]: With dead ends: 63883 [2022-12-14 07:10:36,602 INFO L226 Difference]: Without dead ends: 63728 [2022-12-14 07:10:36,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:10:36,627 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 3072 mSDsluCounter, 9517 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 12979 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:36,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3072 Valid, 12979 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1858 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 07:10:36,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63728 states. [2022-12-14 07:10:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63728 to 63712. [2022-12-14 07:10:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63712 states, 38472 states have (on average 1.294369931378665) internal successors, (49797), 38898 states have internal predecessors, (49797), 20484 states have call successors, (20484), 4790 states have call predecessors, (20484), 4753 states have return successors, (21152), 20263 states have call predecessors, (21152), 20480 states have call successors, (21152) [2022-12-14 07:10:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63712 states to 63712 states and 91433 transitions. [2022-12-14 07:10:40,777 INFO L78 Accepts]: Start accepts. Automaton has 63712 states and 91433 transitions. Word has length 615 [2022-12-14 07:10:40,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:40,778 INFO L495 AbstractCegarLoop]: Abstraction has 63712 states and 91433 transitions. [2022-12-14 07:10:40,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2022-12-14 07:10:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand 63712 states and 91433 transitions. [2022-12-14 07:10:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2022-12-14 07:10:40,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:40,796 INFO L195 NwaCegarLoop]: trace histogram [54, 49, 49, 49, 49, 49, 49, 9, 9, 3, 3, 3, 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] [2022-12-14 07:10:40,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 07:10:40,796 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:10:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash 800596394, now seen corresponding path program 1 times [2022-12-14 07:10:40,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:40,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608656853] [2022-12-14 07:10:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:40,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:40,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:10:40,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178092522] [2022-12-14 07:10:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:40,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:10:40,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:10:40,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:10:40,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:10:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:42,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 9233 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:10:42,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:10:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10047 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 9488 trivial. 0 not checked. [2022-12-14 07:10:42,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:10:42,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:42,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608656853] [2022-12-14 07:10:42,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:10:42,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178092522] [2022-12-14 07:10:42,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178092522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:42,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:42,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:10:42,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714105521] [2022-12-14 07:10:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:42,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:42,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:42,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:42,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:42,643 INFO L87 Difference]: Start difference. First operand 63712 states and 91433 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 07:10:46,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:10:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:55,845 INFO L93 Difference]: Finished difference Result 187754 states and 269051 transitions. [2022-12-14 07:10:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:55,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 620 [2022-12-14 07:10:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:56,284 INFO L225 Difference]: With dead ends: 187754 [2022-12-14 07:10:56,284 INFO L226 Difference]: Without dead ends: 124141 [2022-12-14 07:10:56,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:56,448 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 3062 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:56,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 6089 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 946 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 07:10:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124141 states. [2022-12-14 07:11:04,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124141 to 124004. [2022-12-14 07:11:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124004 states, 74936 states have (on average 1.294558022846162) internal successors, (97009), 75814 states have internal predecessors, (97009), 39600 states have call successors, (39600), 9538 states have call predecessors, (39600), 9465 states have return successors, (40924), 39131 states have call predecessors, (40924), 39596 states have call successors, (40924) [2022-12-14 07:11:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124004 states to 124004 states and 177533 transitions. [2022-12-14 07:11:05,342 INFO L78 Accepts]: Start accepts. Automaton has 124004 states and 177533 transitions. Word has length 620 [2022-12-14 07:11:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:05,343 INFO L495 AbstractCegarLoop]: Abstraction has 124004 states and 177533 transitions. [2022-12-14 07:11:05,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 07:11:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 124004 states and 177533 transitions. [2022-12-14 07:11:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2022-12-14 07:11:05,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:05,367 INFO L195 NwaCegarLoop]: trace histogram [53, 51, 51, 51, 51, 51, 51, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:05,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:11:05,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 07:11:05,569 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:11:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1413791130, now seen corresponding path program 1 times [2022-12-14 07:11:05,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:05,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321350490] [2022-12-14 07:11:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:05,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10434 trivial. 0 not checked. [2022-12-14 07:11:06,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:11:06,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321350490] [2022-12-14 07:11:06,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321350490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:11:06,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:11:06,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:11:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040231819] [2022-12-14 07:11:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:11:06,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:11:06,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:11:06,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:11:06,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:11:06,311 INFO L87 Difference]: Start difference. First operand 124004 states and 177533 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 07:11:09,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:11:13,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:11:27,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:11:27,491 INFO L93 Difference]: Finished difference Result 359938 states and 512595 transitions. [2022-12-14 07:11:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:11:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 640 [2022-12-14 07:11:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:11:28,425 INFO L225 Difference]: With dead ends: 359938 [2022-12-14 07:11:28,426 INFO L226 Difference]: Without dead ends: 236033 [2022-12-14 07:11:28,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:11:28,759 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 2711 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 6107 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:11:28,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 6107 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 989 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 07:11:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236033 states. [2022-12-14 07:11:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236033 to 235868. [2022-12-14 07:11:43,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235868 states, 143048 states have (on average 1.2880222023376768) internal successors, (184249), 144910 states have internal predecessors, (184249), 73896 states have call successors, (73896), 19066 states have call predecessors, (73896), 18921 states have return successors, (76260), 72851 states have call predecessors, (76260), 73892 states have call successors, (76260) [2022-12-14 07:11:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235868 states to 235868 states and 334405 transitions. [2022-12-14 07:11:45,014 INFO L78 Accepts]: Start accepts. Automaton has 235868 states and 334405 transitions. Word has length 640 [2022-12-14 07:11:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:45,014 INFO L495 AbstractCegarLoop]: Abstraction has 235868 states and 334405 transitions. [2022-12-14 07:11:45,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 07:11:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 235868 states and 334405 transitions. [2022-12-14 07:11:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-12-14 07:11:45,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:45,052 INFO L195 NwaCegarLoop]: trace histogram [53, 51, 51, 51, 51, 51, 51, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:45,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 07:11:45,052 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:11:45,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1747934660, now seen corresponding path program 1 times [2022-12-14 07:11:45,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:45,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379274047] [2022-12-14 07:11:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 10434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10434 trivial. 0 not checked. [2022-12-14 07:11:45,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:11:45,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379274047] [2022-12-14 07:11:45,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379274047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:11:45,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:11:45,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:11:45,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642252215] [2022-12-14 07:11:45,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:11:45,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:11:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:11:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:11:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:11:45,581 INFO L87 Difference]: Start difference. First operand 235868 states and 334405 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 07:11:50,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:12:13,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:12:13,346 INFO L93 Difference]: Finished difference Result 605614 states and 856231 transitions. [2022-12-14 07:12:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:12:13,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 641 [2022-12-14 07:12:13,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:12:14,983 INFO L225 Difference]: With dead ends: 605614 [2022-12-14 07:12:14,983 INFO L226 Difference]: Without dead ends: 369845 [2022-12-14 07:12:15,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:12:15,611 INFO L413 NwaCegarLoop]: 3415 mSDtfsCounter, 2755 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 6115 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:12:15,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 6115 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 989 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 07:12:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369845 states. [2022-12-14 07:12:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369845 to 369680. [2022-12-14 07:12:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369680 states, 224672 states have (on average 1.2801283649052841) internal successors, (287609), 228010 states have internal predecessors, (287609), 114764 states have call successors, (114764), 30498 states have call predecessors, (114764), 30241 states have return successors, (118156), 112763 states have call predecessors, (118156), 114760 states have call successors, (118156) [2022-12-14 07:12:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369680 states to 369680 states and 520529 transitions. [2022-12-14 07:12:41,499 INFO L78 Accepts]: Start accepts. Automaton has 369680 states and 520529 transitions. Word has length 641 [2022-12-14 07:12:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:12:41,500 INFO L495 AbstractCegarLoop]: Abstraction has 369680 states and 520529 transitions. [2022-12-14 07:12:41,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-12-14 07:12:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 369680 states and 520529 transitions. [2022-12-14 07:12:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-12-14 07:12:41,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:12:41,533 INFO L195 NwaCegarLoop]: trace histogram [55, 49, 49, 49, 49, 49, 49, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:12:41,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 07:12:41,534 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)] === [2022-12-14 07:12:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:12:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2070289509, now seen corresponding path program 1 times [2022-12-14 07:12:41,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:12:41,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232140223] [2022-12-14 07:12:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:12:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10162 trivial. 0 not checked. [2022-12-14 07:12:42,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:12:42,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232140223] [2022-12-14 07:12:42,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232140223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:12:42,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:12:42,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:12:42,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728305405] [2022-12-14 07:12:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:12:42,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:12:42,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:12:42,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:12:42,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:12:42,723 INFO L87 Difference]: Start difference. First operand 369680 states and 520529 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 07:13:07,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:13:07,951 INFO L93 Difference]: Finished difference Result 369680 states and 520529 transitions. [2022-12-14 07:13:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:13:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 636 [2022-12-14 07:13:07,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:13:09,730 INFO L225 Difference]: With dead ends: 369680 [2022-12-14 07:13:09,730 INFO L226 Difference]: Without dead ends: 369678 [2022-12-14 07:13:09,889 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 [2022-12-14 07:13:09,890 INFO L413 NwaCegarLoop]: 2781 mSDtfsCounter, 2802 mSDsluCounter, 5886 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2803 SdHoareTripleChecker+Valid, 8667 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:13:09,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2803 Valid, 8667 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 07:13:10,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369678 states. [2022-12-14 07:13:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369678 to 369678. [2022-12-14 07:13:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369678 states, 224671 states have (on average 1.2791147945217674) internal successors, (287380), 228008 states have internal predecessors, (287380), 114764 states have call successors, (114764), 30498 states have call predecessors, (114764), 30241 states have return successors, (118156), 112763 states have call predecessors, (118156), 114760 states have call successors, (118156) [2022-12-14 07:13:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369678 states to 369678 states and 520300 transitions. [2022-12-14 07:13:35,800 INFO L78 Accepts]: Start accepts. Automaton has 369678 states and 520300 transitions. Word has length 636 [2022-12-14 07:13:35,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:13:35,801 INFO L495 AbstractCegarLoop]: Abstraction has 369678 states and 520300 transitions. [2022-12-14 07:13:35,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 07:13:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 369678 states and 520300 transitions. [2022-12-14 07:13:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-12-14 07:13:35,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:13:35,844 INFO L195 NwaCegarLoop]: trace histogram [56, 49, 49, 49, 49, 49, 49, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:13:35,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 07:13:35,844 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:13:35,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:13:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1737576403, now seen corresponding path program 1 times [2022-12-14 07:13:35,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:13:35,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519593644] [2022-12-14 07:13:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:35,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:13:35,971 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:13:35,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053926385] [2022-12-14 07:13:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:35,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:13:35,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:13:35,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:13:35,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7be200-d880-41d9-bfc7-a598b2b164a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:13:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:13:37,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 9298 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:13:37,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:13:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10283 backedges. 785 proven. 0 refuted. 0 times theorem prover too weak. 9498 trivial. 0 not checked. [2022-12-14 07:13:37,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:13:37,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:13:37,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519593644] [2022-12-14 07:13:37,500 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:13:37,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053926385] [2022-12-14 07:13:37,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053926385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:13:37,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:13:37,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:13:37,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577596020] [2022-12-14 07:13:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:13:37,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:13:37,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:13:37,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:13:37,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:13:37,502 INFO L87 Difference]: Start difference. First operand 369678 states and 520300 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-12-14 07:13:43,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:14:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:14:12,851 INFO L93 Difference]: Finished difference Result 828820 states and 1164442 transitions. [2022-12-14 07:14:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:14:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 644 [2022-12-14 07:14:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:14:14,957 INFO L225 Difference]: With dead ends: 828820 [2022-12-14 07:14:14,957 INFO L226 Difference]: Without dead ends: 459241 [2022-12-14 07:14:15,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:14:15,934 INFO L413 NwaCegarLoop]: 3465 mSDtfsCounter, 2938 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 6161 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:14:15,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 6161 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 943 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 07:14:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459241 states.