./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.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_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/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_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/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_46488d55-2ac0-4e85-82ed-4088db00645f/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 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 --- 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 14:14:26,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:14:26,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:14:26,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:14:26,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:14:26,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:14:26,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:14:26,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:14:26,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:14:26,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:14:26,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:14:26,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:14:26,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:14:26,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:14:26,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:14:26,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:14:26,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:14:26,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:14:26,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:14:26,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:14:26,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:14:26,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:14:26,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:14:26,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:14:26,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:14:26,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:14:26,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:14:26,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:14:26,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:14:26,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:14:26,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:14:26,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:14:26,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:14:26,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:14:26,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:14:26,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:14:26,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:14:26,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:14:26,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:14:26,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:14:26,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:14:26,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:14:26,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:14:26,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:14:26,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:14:26,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:14:26,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:14:26,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:14:26,225 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:14:26,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:14:26,225 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:14:26,225 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:14:26,225 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:14:26,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:14:26,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:14:26,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:14:26,226 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:14:26,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:14:26,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:14:26,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:14:26,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:14:26,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:14:26,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:14:26,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:14:26,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:14:26,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:14:26,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:14:26,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:14:26,229 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:14:26,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:14:26,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:14:26,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:14:26,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:14:26,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:14:26,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:14:26,230 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_46488d55-2ac0-4e85-82ed-4088db00645f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2022-12-14 14:14:26,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:14:26,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:14:26,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:14:26,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:14:26,424 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:14:26,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-12-14 14:14:28,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:14:29,426 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:14:29,426 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-12-14 14:14:29,470 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/data/fbc982f4d/5af4da16c6fd4e4094556def7a411746/FLAGb4afd3f02 [2022-12-14 14:14:29,483 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/data/fbc982f4d/5af4da16c6fd4e4094556def7a411746 [2022-12-14 14:14:29,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:14:29,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:14:29,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:14:29,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:14:29,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:14:29,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:14:29" (1/1) ... [2022-12-14 14:14:29,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db93710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:29, skipping insertion in model container [2022-12-14 14:14:29,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:14:29" (1/1) ... [2022-12-14 14:14:29,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:14:29,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:14:29,986 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:14:30,160 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 14:14:30,251 WARN L623 FunctionHandler]: Unknown extern function devm_request_threaded_irq [2022-12-14 14:14:30,282 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-12-14 14:14:30,283 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-12-14 14:14:30,283 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 14:14:30,289 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-12-14 14:14:30,289 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 14:14:30,349 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 14:14:30,355 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 14:14:30,420 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:30,428 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:14:30,429 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-12-14 14:14:30,430 WARN L623 FunctionHandler]: Unknown extern function media_device_unregister [2022-12-14 14:14:30,437 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:30,445 WARN L623 FunctionHandler]: Unknown extern function media_device_register [2022-12-14 14:14:30,446 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,447 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-12-14 14:14:30,448 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,463 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:30,465 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register_subdev_nodes [2022-12-14 14:14:30,473 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 14:14:30,473 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,488 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:30,489 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:30,490 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:30,490 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:30,496 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:14:30,502 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:14:30,510 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,510 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,511 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,512 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,518 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:30,519 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:14:30,519 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_resource [2022-12-14 14:14:30,520 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 14:14:30,520 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,521 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 14:14:30,521 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:14:30,522 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,523 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:30,523 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:31,360 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:14:31,364 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:14:31,364 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:14:31,367 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:14:31,367 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:14:31,370 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:14:31,389 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:14:31,413 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register_subdev [2022-12-14 14:14:31,413 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 14:14:31,422 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 14:14:31,494 WARN L623 FunctionHandler]: Unknown extern function media_entity_init [2022-12-14 14:14:31,494 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-12-14 14:14:31,495 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:31,496 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_link_validate [2022-12-14 14:14:31,594 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:14:31,670 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-12-14 14:14:31,695 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 14:14:31,805 WARN L623 FunctionHandler]: Unknown extern function vb2_plane_cookie [2022-12-14 14:14:31,849 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:31,880 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:31,882 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:31,888 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,888 WARN L623 FunctionHandler]: Unknown extern function media_entity_graph_walk_start [2022-12-14 14:14:31,889 WARN L623 FunctionHandler]: Unknown extern function media_entity_graph_walk_next [2022-12-14 14:14:31,889 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,895 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,895 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,900 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,901 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,912 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 14:14:31,912 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 14:14:31,912 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 14:14:31,913 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 14:14:31,913 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 14:14:31,926 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:14:31,926 WARN L623 FunctionHandler]: Unknown extern function v4l2_get_timestamp [2022-12-14 14:14:31,927 WARN L623 FunctionHandler]: Unknown extern function vb2_buffer_done [2022-12-14 14:14:31,933 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 14:14:31,962 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,963 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,963 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,969 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,969 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:31,970 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,970 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_stop [2022-12-14 14:14:31,975 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:31,976 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:31,982 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,985 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:31,996 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:31,999 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:32,005 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_start [2022-12-14 14:14:32,005 WARN L623 FunctionHandler]: Unknown extern function vb2_streamon [2022-12-14 14:14:32,006 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_stop [2022-12-14 14:14:32,012 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_init [2022-12-14 14:14:32,012 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_add [2022-12-14 14:14:32,012 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_del [2022-12-14 14:14:32,012 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:14:32,017 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:32,018 WARN L623 FunctionHandler]: Unknown extern function vb2_queue_release [2022-12-14 14:14:32,018 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:32,018 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-12-14 14:14:32,020 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:32,020 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:14:32,020 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:32,021 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:14:32,021 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 14:14:32,021 WARN L623 FunctionHandler]: Unknown extern function media_entity_init [2022-12-14 14:14:32,023 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_init_ctx [2022-12-14 14:14:32,023 WARN L623 FunctionHandler]: Unknown extern function vb2_queue_init [2022-12-14 14:14:32,024 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:32,024 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:32,024 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:32,025 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 14:14:32,025 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:32,025 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:32,051 WARN L623 FunctionHandler]: Unknown extern function vb2_ops_wait_finish [2022-12-14 14:14:32,051 WARN L623 FunctionHandler]: Unknown extern function vb2_ops_wait_prepare [2022-12-14 14:14:32,052 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_prepare_buf [2022-12-14 14:14:32,053 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_qbuf [2022-12-14 14:14:32,053 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_querybuf [2022-12-14 14:14:32,053 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_reqbufs [2022-12-14 14:14:32,054 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_streamoff [2022-12-14 14:14:32,054 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_create_bufs [2022-12-14 14:14:32,055 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_dqbuf [2022-12-14 14:14:32,055 WARN L623 FunctionHandler]: Unknown extern function vb2_fop_poll [2022-12-14 14:14:32,055 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 14:14:32,055 WARN L623 FunctionHandler]: Unknown extern function vb2_fop_mmap [2022-12-14 14:14:32,058 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,058 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,058 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:32,126 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,127 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:32,127 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:32,180 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,181 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:32,181 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:32,420 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,581 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,675 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,829 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,829 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-12-14 14:14:32,830 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_custom [2022-12-14 14:14:32,830 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 14:14:32,906 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:14:32,940 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:32,995 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:14:32,995 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:14:33,005 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:14:33,423 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2022-12-14 14:14:33,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2022-12-14 14:14:33,426 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2022-12-14 14:14:33,426 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2022-12-14 14:14:33,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:14:33,472 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:14:33,548 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:14:33,550 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-14 14:14:33,551 WARN L623 FunctionHandler]: Unknown extern function devm_request_threaded_irq [2022-12-14 14:14:33,552 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-12-14 14:14:33,552 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-12-14 14:14:33,552 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 14:14:33,552 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-12-14 14:14:33,552 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 14:14:33,553 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 14:14:33,553 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 14:14:33,560 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:33,561 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:14:33,561 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-12-14 14:14:33,561 WARN L623 FunctionHandler]: Unknown extern function media_device_unregister [2022-12-14 14:14:33,562 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:33,562 WARN L623 FunctionHandler]: Unknown extern function media_device_register [2022-12-14 14:14:33,563 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,563 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-12-14 14:14:33,563 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,582 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:33,583 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register_subdev_nodes [2022-12-14 14:14:33,585 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 14:14:33,585 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,586 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,587 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,587 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,587 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,587 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:14:33,588 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:14:33,588 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,589 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,589 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,589 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,590 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:33,591 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:14:33,591 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_resource [2022-12-14 14:14:33,591 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 14:14:33,591 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,592 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 14:14:33,592 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 14:14:33,592 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,593 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,593 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,618 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:14:33,620 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:14:33,620 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:14:33,622 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:14:33,622 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:14:33,624 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:14:33,653 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:14:33,668 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register_subdev [2022-12-14 14:14:33,669 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 14:14:33,669 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 14:14:33,680 WARN L623 FunctionHandler]: Unknown extern function media_entity_init [2022-12-14 14:14:33,681 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-12-14 14:14:33,681 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:33,682 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_link_validate [2022-12-14 14:14:33,684 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:14:33,684 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-12-14 14:14:33,685 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-12-14 14:14:33,686 WARN L623 FunctionHandler]: Unknown extern function vb2_plane_cookie [2022-12-14 14:14:33,688 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:33,700 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:33,702 WARN L623 FunctionHandler]: Unknown extern function media_entity_remote_pad [2022-12-14 14:14:33,703 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,703 WARN L623 FunctionHandler]: Unknown extern function media_entity_graph_walk_start [2022-12-14 14:14:33,707 WARN L623 FunctionHandler]: Unknown extern function media_entity_graph_walk_next [2022-12-14 14:14:33,707 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,713 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,713 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,714 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,716 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,727 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 14:14:33,727 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 14:14:33,728 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 14:14:33,728 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 14:14:33,728 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 14:14:33,732 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:14:33,732 WARN L623 FunctionHandler]: Unknown extern function v4l2_get_timestamp [2022-12-14 14:14:33,733 WARN L623 FunctionHandler]: Unknown extern function vb2_buffer_done [2022-12-14 14:14:33,739 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 14:14:33,747 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,749 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,750 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,750 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,751 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,751 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,751 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_stop [2022-12-14 14:14:33,752 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:33,752 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:14:33,753 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,754 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,756 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,758 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,759 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_start [2022-12-14 14:14:33,759 WARN L623 FunctionHandler]: Unknown extern function vb2_streamon [2022-12-14 14:14:33,760 WARN L623 FunctionHandler]: Unknown extern function media_entity_pipeline_stop [2022-12-14 14:14:33,761 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_init [2022-12-14 14:14:33,761 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_add [2022-12-14 14:14:33,762 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_del [2022-12-14 14:14:33,762 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:14:33,762 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:14:33,762 WARN L623 FunctionHandler]: Unknown extern function vb2_queue_release [2022-12-14 14:14:33,762 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:14:33,763 WARN L623 FunctionHandler]: Unknown extern function v4l2_fh_release [2022-12-14 14:14:33,764 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:33,764 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:14:33,764 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:14:33,764 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:14:33,764 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 14:14:33,765 WARN L623 FunctionHandler]: Unknown extern function media_entity_init [2022-12-14 14:14:33,771 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_init_ctx [2022-12-14 14:14:33,771 WARN L623 FunctionHandler]: Unknown extern function vb2_queue_init [2022-12-14 14:14:33,771 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,773 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:14:33,773 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:33,774 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-12-14 14:14:33,774 WARN L623 FunctionHandler]: Unknown extern function vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:33,774 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:33,775 WARN L623 FunctionHandler]: Unknown extern function vb2_ops_wait_finish [2022-12-14 14:14:33,775 WARN L623 FunctionHandler]: Unknown extern function vb2_ops_wait_prepare [2022-12-14 14:14:33,776 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_prepare_buf [2022-12-14 14:14:33,776 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_qbuf [2022-12-14 14:14:33,776 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_querybuf [2022-12-14 14:14:33,777 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_reqbufs [2022-12-14 14:14:33,777 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_streamoff [2022-12-14 14:14:33,778 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_create_bufs [2022-12-14 14:14:33,778 WARN L623 FunctionHandler]: Unknown extern function vb2_ioctl_dqbuf [2022-12-14 14:14:33,778 WARN L623 FunctionHandler]: Unknown extern function vb2_fop_poll [2022-12-14 14:14:33,779 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-12-14 14:14:33,779 WARN L623 FunctionHandler]: Unknown extern function vb2_fop_mmap [2022-12-14 14:14:33,781 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,781 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,781 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,781 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,782 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,782 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,782 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,782 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:14:33,786 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,786 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:33,786 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:33,799 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,800 WARN L623 FunctionHandler]: Unknown extern function media_entity_create_link [2022-12-14 14:14:33,800 WARN L623 FunctionHandler]: Unknown extern function media_entity_cleanup [2022-12-14 14:14:33,810 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,819 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,826 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,847 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,848 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-12-14 14:14:33,848 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_custom [2022-12-14 14:14:33,848 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_setup [2022-12-14 14:14:33,853 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 14:14:33,861 WARN L623 FunctionHandler]: Unknown extern function v4l2_subdev_init [2022-12-14 14:14:33,864 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:14:33,865 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:14:33,865 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:14:33,876 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2022-12-14 14:14:33,876 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2022-12-14 14:14:33,877 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2022-12-14 14:14:33,877 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_46488d55-2ac0-4e85-82ed-4088db00645f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2022-12-14 14:14:33,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:14:34,152 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:14:34,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34 WrapperNode [2022-12-14 14:14:34,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:14:34,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:14:34,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:14:34,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:14:34,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,531 INFO L138 Inliner]: procedures = 710, calls = 4710, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9466 [2022-12-14 14:14:34,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:14:34,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:14:34,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:14:34,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:14:34,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:14:34,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:14:34,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:14:34,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:14:34,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (1/1) ... [2022-12-14 14:14:34,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:14:34,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:14:34,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:14:34,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46488d55-2ac0-4e85-82ed-4088db00645f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:14:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2022-12-14 14:14:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2022-12-14 14:14:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2022-12-14 14:14:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2022-12-14 14:14:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2022-12-14 14:14:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2022-12-14 14:14:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2022-12-14 14:14:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2022-12-14 14:14:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2022-12-14 14:14:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2022-12-14 14:14:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2022-12-14 14:14:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2022-12-14 14:14:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2022-12-14 14:14:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2022-12-14 14:14:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-12-14 14:14:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-12-14 14:14:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2022-12-14 14:14:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2022-12-14 14:14:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2022-12-14 14:14:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2022-12-14 14:14:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2022-12-14 14:14:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2022-12-14 14:14:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2022-12-14 14:14:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2022-12-14 14:14:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:14:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:14:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 14:14:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 14:14:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2022-12-14 14:14:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2022-12-14 14:14:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2022-12-14 14:14:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:14:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:14:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2022-12-14 14:14:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2022-12-14 14:14:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 14:14:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 14:14:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2022-12-14 14:14:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2022-12-14 14:14:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-12-14 14:14:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-12-14 14:14:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2022-12-14 14:14:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2022-12-14 14:14:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:14:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2022-12-14 14:14:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2022-12-14 14:14:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 14:14:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 14:14:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-12-14 14:14:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-12-14 14:14:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2022-12-14 14:14:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2022-12-14 14:14:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 14:14:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 14:14:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2022-12-14 14:14:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2022-12-14 14:14:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 14:14:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 14:14:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2022-12-14 14:14:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2022-12-14 14:14:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-12-14 14:14:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-12-14 14:14:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 14:14:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 14:14:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:14:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 14:14:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:14:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2022-12-14 14:14:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2022-12-14 14:14:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2022-12-14 14:14:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 14:14:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 14:14:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2022-12-14 14:14:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2022-12-14 14:14:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:14:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:14:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:14:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2022-12-14 14:14:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-12-14 14:14:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-12-14 14:14:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2022-12-14 14:14:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2022-12-14 14:14:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 14:14:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-12-14 14:14:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2022-12-14 14:14:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2022-12-14 14:14:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2022-12-14 14:14:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2022-12-14 14:14:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2022-12-14 14:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2022-12-14 14:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2022-12-14 14:14:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-12-14 14:14:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2022-12-14 14:14:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2022-12-14 14:14:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2022-12-14 14:14:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2022-12-14 14:14:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:14:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 14:14:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 14:14:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 14:14:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 14:14:35,979 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:14:35,982 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:14:39,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:15:52,390 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 14:15:52,551 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:15:54,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:15:54,049 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-12-14 14:15:54,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:15:54 BoogieIcfgContainer [2022-12-14 14:15:54,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:15:54,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:15:54,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:15:54,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:15:54,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:14:29" (1/3) ... [2022-12-14 14:15:54,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35609a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:15:54, skipping insertion in model container [2022-12-14 14:15:54,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:14:34" (2/3) ... [2022-12-14 14:15:54,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35609a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:15:54, skipping insertion in model container [2022-12-14 14:15:54,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:15:54" (3/3) ... [2022-12-14 14:15:54,061 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-12-14 14:15:54,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:15:54,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 14:15:54,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:15:54,148 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;@312431b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:15:54,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 14:15:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 2850 states, 1769 states have (on average 1.3380440927077444) internal successors, (2367), 1792 states have internal predecessors, (2367), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) [2022-12-14 14:15:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2022-12-14 14:15:54,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:15:54,218 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:54,218 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 14:15:54,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:15:54,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2024235573, now seen corresponding path program 1 times [2022-12-14 14:15:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:15:54,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375875244] [2022-12-14 14:15:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:15:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:15:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:15:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2022-12-14 14:15:56,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:15:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375875244] [2022-12-14 14:15:56,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375875244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:15:56,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:15:56,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:15:56,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972034971] [2022-12-14 14:15:56,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:15:56,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:15:56,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:15:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:15:56,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:15:56,328 INFO L87 Difference]: Start difference. First operand has 2850 states, 1769 states have (on average 1.3380440927077444) internal successors, (2367), 1792 states have internal predecessors, (2367), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2022-12-14 14:16:05,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:09,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:14,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:14,219 INFO L93 Difference]: Finished difference Result 7987 states and 11760 transitions. [2022-12-14 14:16:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:14,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) Word has length 1124 [2022-12-14 14:16:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:14,256 INFO L225 Difference]: With dead ends: 7987 [2022-12-14 14:16:14,256 INFO L226 Difference]: Without dead ends: 5340 [2022-12-14 14:16:14,280 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 14:16:14,284 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3675 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3678 SdHoareTripleChecker+Valid, 7835 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:14,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3678 Valid, 7835 Invalid, 1190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1167 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2022-12-14 14:16:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5340 states. [2022-12-14 14:16:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5340 to 5335. [2022-12-14 14:16:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3361 states have (on average 1.3403748884260638) internal successors, (4505), 3405 states have internal predecessors, (4505), 1619 states have call successors, (1619), 353 states have call predecessors, (1619), 352 states have return successors, (1618), 1606 states have call predecessors, (1618), 1615 states have call successors, (1618) [2022-12-14 14:16:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7742 transitions. [2022-12-14 14:16:14,588 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7742 transitions. Word has length 1124 [2022-12-14 14:16:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:14,590 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 7742 transitions. [2022-12-14 14:16:14,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2022-12-14 14:16:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7742 transitions. [2022-12-14 14:16:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-12-14 14:16:14,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:14,628 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:14,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:16:14,628 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 14:16:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash -392850812, now seen corresponding path program 1 times [2022-12-14 14:16:14,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:14,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836902339] [2022-12-14 14:16:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:14,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-12-14 14:16:15,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:15,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836902339] [2022-12-14 14:16:15,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836902339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:15,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:15,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226810621] [2022-12-14 14:16:15,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:15,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:15,890 INFO L87 Difference]: Start difference. First operand 5335 states and 7742 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:16:21,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:23,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:25,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:34,056 INFO L93 Difference]: Finished difference Result 12949 states and 18768 transitions. [2022-12-14 14:16:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:34,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2022-12-14 14:16:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:34,096 INFO L225 Difference]: With dead ends: 12949 [2022-12-14 14:16:34,096 INFO L226 Difference]: Without dead ends: 7835 [2022-12-14 14:16:34,116 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 14:16:34,117 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3668 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:34,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 7841 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1140 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2022-12-14 14:16:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-12-14 14:16:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 7810. [2022-12-14 14:16:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7810 states, 4932 states have (on average 1.3408353609083536) internal successors, (6613), 5001 states have internal predecessors, (6613), 2346 states have call successors, (2346), 530 states have call predecessors, (2346), 529 states have return successors, (2348), 2323 states have call predecessors, (2348), 2342 states have call successors, (2348) [2022-12-14 14:16:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7810 states to 7810 states and 11307 transitions. [2022-12-14 14:16:34,438 INFO L78 Accepts]: Start accepts. Automaton has 7810 states and 11307 transitions. Word has length 1141 [2022-12-14 14:16:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:34,439 INFO L495 AbstractCegarLoop]: Abstraction has 7810 states and 11307 transitions. [2022-12-14 14:16:34,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:16:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 7810 states and 11307 transitions. [2022-12-14 14:16:34,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-12-14 14:16:34,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:34,453 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:34,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:16:34,453 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 14:16:34,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:34,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1592824931, now seen corresponding path program 1 times [2022-12-14 14:16:34,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:34,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068128337] [2022-12-14 14:16:34,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:34,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-12-14 14:16:35,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:35,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068128337] [2022-12-14 14:16:35,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068128337] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:35,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:35,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:35,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621603137] [2022-12-14 14:16:35,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:35,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:35,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:35,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:35,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:35,405 INFO L87 Difference]: Start difference. First operand 7810 states and 11307 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:16:45,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:16:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:52,791 INFO L93 Difference]: Finished difference Result 22505 states and 32549 transitions. [2022-12-14 14:16:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:52,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2022-12-14 14:16:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:52,860 INFO L225 Difference]: With dead ends: 22505 [2022-12-14 14:16:52,860 INFO L226 Difference]: Without dead ends: 14916 [2022-12-14 14:16:52,883 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 14:16:52,884 INFO L413 NwaCegarLoop]: 4813 mSDtfsCounter, 3573 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:52,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 8316 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1252 Invalid, 1 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 14:16:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14916 states. [2022-12-14 14:16:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14916 to 14887. [2022-12-14 14:16:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14887 states, 9419 states have (on average 1.3375092897335175) internal successors, (12598), 9552 states have internal predecessors, (12598), 4423 states have call successors, (4423), 1043 states have call predecessors, (4423), 1042 states have return successors, (4434), 4375 states have call predecessors, (4434), 4419 states have call successors, (4434) [2022-12-14 14:16:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14887 states to 14887 states and 21455 transitions. [2022-12-14 14:16:53,382 INFO L78 Accepts]: Start accepts. Automaton has 14887 states and 21455 transitions. Word has length 1141 [2022-12-14 14:16:53,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:53,383 INFO L495 AbstractCegarLoop]: Abstraction has 14887 states and 21455 transitions. [2022-12-14 14:16:53,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:16:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 14887 states and 21455 transitions. [2022-12-14 14:16:53,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2022-12-14 14:16:53,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:53,396 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:53,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:16:53,396 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 14:16:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash 509091865, now seen corresponding path program 1 times [2022-12-14 14:16:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:53,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272630750] [2022-12-14 14:16:53,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:53,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-12-14 14:16:54,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:54,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272630750] [2022-12-14 14:16:54,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272630750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:54,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:54,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:54,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832772427] [2022-12-14 14:16:54,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:54,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:54,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:54,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:54,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:54,201 INFO L87 Difference]: Start difference. First operand 14887 states and 21455 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2022-12-14 14:17:02,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:04,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:17:05,854 INFO L93 Difference]: Finished difference Result 29497 states and 42483 transitions. [2022-12-14 14:17:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:17:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1145 [2022-12-14 14:17:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:17:05,922 INFO L225 Difference]: With dead ends: 29497 [2022-12-14 14:17:05,922 INFO L226 Difference]: Without dead ends: 14831 [2022-12-14 14:17:05,970 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 14:17:05,970 INFO L413 NwaCegarLoop]: 3550 mSDtfsCounter, 3745 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3748 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:17:05,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3748 Valid, 3899 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 14:17:05,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2022-12-14 14:17:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 14831. [2022-12-14 14:17:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14831 states, 9395 states have (on average 1.336562001064396) internal successors, (12557), 9529 states have internal predecessors, (12557), 4385 states have call successors, (4385), 1048 states have call predecessors, (4385), 1048 states have return successors, (4399), 4337 states have call predecessors, (4399), 4381 states have call successors, (4399) [2022-12-14 14:17:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14831 states to 14831 states and 21341 transitions. [2022-12-14 14:17:06,582 INFO L78 Accepts]: Start accepts. Automaton has 14831 states and 21341 transitions. Word has length 1145 [2022-12-14 14:17:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:17:06,582 INFO L495 AbstractCegarLoop]: Abstraction has 14831 states and 21341 transitions. [2022-12-14 14:17:06,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2022-12-14 14:17:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 14831 states and 21341 transitions. [2022-12-14 14:17:06,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2022-12-14 14:17:06,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:17:06,595 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:06,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:17:06,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:17:06,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:17:06,596 INFO L85 PathProgramCache]: Analyzing trace with hash -985980976, now seen corresponding path program 1 times [2022-12-14 14:17:06,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:17:06,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071303224] [2022-12-14 14:17:06,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:17:06,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:17:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:17:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-12-14 14:17:07,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:17:07,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071303224] [2022-12-14 14:17:07,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071303224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:17:07,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:17:07,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:17:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060922113] [2022-12-14 14:17:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:17:07,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:17:07,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:17:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:17:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:17:07,406 INFO L87 Difference]: Start difference. First operand 14831 states and 21341 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2022-12-14 14:17:10,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:13,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:17:18,142 INFO L93 Difference]: Finished difference Result 28931 states and 41600 transitions. [2022-12-14 14:17:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:17:18,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1146 [2022-12-14 14:17:18,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:17:18,181 INFO L225 Difference]: With dead ends: 28931 [2022-12-14 14:17:18,181 INFO L226 Difference]: Without dead ends: 14339 [2022-12-14 14:17:18,207 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 14:17:18,208 INFO L413 NwaCegarLoop]: 3437 mSDtfsCounter, 3620 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:17:18,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3623 Valid, 3786 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 14:17:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14339 states. [2022-12-14 14:17:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14339 to 14339. [2022-12-14 14:17:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 9113 states have (on average 1.3364424448589927) internal successors, (12179), 9229 states have internal predecessors, (12179), 4199 states have call successors, (4199), 1024 states have call predecessors, (4199), 1024 states have return successors, (4213), 4151 states have call predecessors, (4213), 4195 states have call successors, (4213) [2022-12-14 14:17:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20591 transitions. [2022-12-14 14:17:18,705 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20591 transitions. Word has length 1146 [2022-12-14 14:17:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:17:18,706 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20591 transitions. [2022-12-14 14:17:18,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2022-12-14 14:17:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20591 transitions. [2022-12-14 14:17:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2022-12-14 14:17:18,721 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:17:18,721 INFO L195 NwaCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:18,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:17:18,721 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 14:17:18,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:17:18,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2062394723, now seen corresponding path program 1 times [2022-12-14 14:17:18,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:17:18,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307064592] [2022-12-14 14:17:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:17:18,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:17:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:17:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-12-14 14:17:19,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:17:19,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307064592] [2022-12-14 14:17:19,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307064592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:17:19,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:17:19,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:17:19,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122917160] [2022-12-14 14:17:19,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:17:19,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:17:19,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:17:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:17:19,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:17:19,375 INFO L87 Difference]: Start difference. First operand 14339 states and 20591 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:17:27,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:32,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:17:37,111 INFO L93 Difference]: Finished difference Result 36987 states and 53134 transitions. [2022-12-14 14:17:37,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:17:37,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1157 [2022-12-14 14:17:37,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:17:37,177 INFO L225 Difference]: With dead ends: 36987 [2022-12-14 14:17:37,177 INFO L226 Difference]: Without dead ends: 22887 [2022-12-14 14:17:37,213 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 14:17:37,213 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 3500 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3503 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:17:37,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3503 Valid, 7748 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1118 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time] [2022-12-14 14:17:37,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22887 states. [2022-12-14 14:17:38,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22887 to 22856. [2022-12-14 14:17:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22856 states, 14557 states have (on average 1.3388060726798103) internal successors, (19489), 14754 states have internal predecessors, (19489), 6656 states have call successors, (6656), 1640 states have call predecessors, (6656), 1640 states have return successors, (6682), 6566 states have call predecessors, (6682), 6652 states have call successors, (6682) [2022-12-14 14:17:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22856 states to 22856 states and 32827 transitions. [2022-12-14 14:17:38,405 INFO L78 Accepts]: Start accepts. Automaton has 22856 states and 32827 transitions. Word has length 1157 [2022-12-14 14:17:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:17:38,406 INFO L495 AbstractCegarLoop]: Abstraction has 22856 states and 32827 transitions. [2022-12-14 14:17:38,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2022-12-14 14:17:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 22856 states and 32827 transitions. [2022-12-14 14:17:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2022-12-14 14:17:38,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:17:38,427 INFO L195 NwaCegarLoop]: trace histogram [112, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:38,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:17:38,427 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:17:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:17:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1479901652, now seen corresponding path program 1 times [2022-12-14 14:17:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:17:38,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539412122] [2022-12-14 14:17:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:17:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:17:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:17:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2022-12-14 14:17:39,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:17:39,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539412122] [2022-12-14 14:17:39,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539412122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:17:39,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:17:39,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:17:39,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872683674] [2022-12-14 14:17:39,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:17:39,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:17:39,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:17:39,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:17:39,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:17:39,347 INFO L87 Difference]: Start difference. First operand 22856 states and 32827 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2022-12-14 14:17:47,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:17:50,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 14:17:57,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:18:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:18:00,986 INFO L93 Difference]: Finished difference Result 59988 states and 86148 transitions. [2022-12-14 14:18:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:18:00,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) Word has length 1160 [2022-12-14 14:18:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:18:01,119 INFO L225 Difference]: With dead ends: 59988 [2022-12-14 14:18:01,120 INFO L226 Difference]: Without dead ends: 37371 [2022-12-14 14:18:01,167 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 14:18:01,167 INFO L413 NwaCegarLoop]: 5233 mSDtfsCounter, 3547 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:18:01,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 8630 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1336 Invalid, 1 Unknown, 0 Unchecked, 20.1s Time] [2022-12-14 14:18:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37371 states. [2022-12-14 14:18:02,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37371 to 37334. [2022-12-14 14:18:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37334 states, 23843 states have (on average 1.3398901144990143) internal successors, (31947), 24181 states have internal predecessors, (31947), 10768 states have call successors, (10768), 2728 states have call predecessors, (10768), 2720 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-12-14 14:18:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37334 states to 37334 states and 53530 transitions. [2022-12-14 14:18:02,479 INFO L78 Accepts]: Start accepts. Automaton has 37334 states and 53530 transitions. Word has length 1160 [2022-12-14 14:18:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:18:02,479 INFO L495 AbstractCegarLoop]: Abstraction has 37334 states and 53530 transitions. [2022-12-14 14:18:02,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2022-12-14 14:18:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37334 states and 53530 transitions. [2022-12-14 14:18:02,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2022-12-14 14:18:02,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:18:02,492 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:02,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:18:02,492 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 14:18:02,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:18:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1927099183, now seen corresponding path program 1 times [2022-12-14 14:18:02,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:18:02,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565551385] [2022-12-14 14:18:02,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:18:02,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:18:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:18:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 48886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2022-12-14 14:18:03,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:18:03,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565551385] [2022-12-14 14:18:03,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565551385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:18:03,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:18:03,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:18:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588299730] [2022-12-14 14:18:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:18:04,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:18:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:18:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:18:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:18:04,002 INFO L87 Difference]: Start difference. First operand 37334 states and 53530 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-12-14 14:18:22,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:18:27,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:18:27,615 INFO L93 Difference]: Finished difference Result 37340 states and 53535 transitions. [2022-12-14 14:18:27,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:18:27,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1181 [2022-12-14 14:18:27,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:18:27,715 INFO L225 Difference]: With dead ends: 37340 [2022-12-14 14:18:27,715 INFO L226 Difference]: Without dead ends: 37338 [2022-12-14 14:18:27,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:18:27,727 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 3695 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 10254 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:18:27,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 10254 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 22.0s Time] [2022-12-14 14:18:27,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37338 states. [2022-12-14 14:18:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37338 to 37338. [2022-12-14 14:18:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37338 states, 23846 states have (on average 1.3398473538538958) internal successors, (31950), 24184 states have internal predecessors, (31950), 10768 states have call successors, (10768), 2729 states have call predecessors, (10768), 2721 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-12-14 14:18:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37338 states to 37338 states and 53533 transitions. [2022-12-14 14:18:29,306 INFO L78 Accepts]: Start accepts. Automaton has 37338 states and 53533 transitions. Word has length 1181 [2022-12-14 14:18:29,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:18:29,307 INFO L495 AbstractCegarLoop]: Abstraction has 37338 states and 53533 transitions. [2022-12-14 14:18:29,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-12-14 14:18:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 37338 states and 53533 transitions. [2022-12-14 14:18:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2022-12-14 14:18:29,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:18:29,320 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:29,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:18:29,320 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:18:29,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:18:29,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1247905689, now seen corresponding path program 1 times [2022-12-14 14:18:29,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:18:29,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179189094] [2022-12-14 14:18:29,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:18:29,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:18:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:18:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 48889 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48887 trivial. 0 not checked. [2022-12-14 14:18:30,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:18:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179189094] [2022-12-14 14:18:30,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179189094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:18:30,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:18:30,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:18:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971668] [2022-12-14 14:18:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:18:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:18:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:18:30,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:18:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:18:30,746 INFO L87 Difference]: Start difference. First operand 37338 states and 53533 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2022-12-14 14:18:37,625 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 14:18:52,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:18:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:18:58,523 INFO L93 Difference]: Finished difference Result 37344 states and 53538 transitions. [2022-12-14 14:18:58,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:18:58,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1187 [2022-12-14 14:18:58,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:18:58,634 INFO L225 Difference]: With dead ends: 37344 [2022-12-14 14:18:58,634 INFO L226 Difference]: Without dead ends: 37342 [2022-12-14 14:18:58,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:18:58,651 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:18:58,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1627 Invalid, 2 Unknown, 0 Unchecked, 25.6s Time] [2022-12-14 14:18:58,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37342 states. [2022-12-14 14:19:00,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37342 to 37342. [2022-12-14 14:19:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37342 states, 23849 states have (on average 1.3398046039666234) internal successors, (31953), 24187 states have internal predecessors, (31953), 10768 states have call successors, (10768), 2730 states have call predecessors, (10768), 2722 states have return successors, (10815), 10595 states have call predecessors, (10815), 10764 states have call successors, (10815) [2022-12-14 14:19:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37342 states to 37342 states and 53536 transitions. [2022-12-14 14:19:00,285 INFO L78 Accepts]: Start accepts. Automaton has 37342 states and 53536 transitions. Word has length 1187 [2022-12-14 14:19:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:00,286 INFO L495 AbstractCegarLoop]: Abstraction has 37342 states and 53536 transitions. [2022-12-14 14:19:00,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2022-12-14 14:19:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 37342 states and 53536 transitions. [2022-12-14 14:19:00,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2022-12-14 14:19:00,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:00,300 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:00,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:19:00,300 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 14:19:00,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:00,301 INFO L85 PathProgramCache]: Analyzing trace with hash -88240817, now seen corresponding path program 1 times [2022-12-14 14:19:00,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:00,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828897296] [2022-12-14 14:19:00,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:00,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 48894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48890 trivial. 0 not checked. [2022-12-14 14:19:01,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:19:01,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828897296] [2022-12-14 14:19:01,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828897296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:19:01,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:19:01,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:19:01,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564466047] [2022-12-14 14:19:01,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:19:01,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:19:01,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:19:01,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:19:01,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:19:01,721 INFO L87 Difference]: Start difference. First operand 37342 states and 53536 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-12-14 14:19:07,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:21,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:27,010 INFO L93 Difference]: Finished difference Result 37896 states and 54158 transitions. [2022-12-14 14:19:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:19:27,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1191 [2022-12-14 14:19:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:27,121 INFO L225 Difference]: With dead ends: 37896 [2022-12-14 14:19:27,121 INFO L226 Difference]: Without dead ends: 37894 [2022-12-14 14:19:27,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:19:27,139 INFO L413 NwaCegarLoop]: 3430 mSDtfsCounter, 3636 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 10368 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:27,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 10368 Invalid, 1639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1636 Invalid, 1 Unknown, 0 Unchecked, 23.4s Time] [2022-12-14 14:19:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37894 states. [2022-12-14 14:19:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37894 to 37892. [2022-12-14 14:19:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37892 states, 24202 states have (on average 1.3377406825882159) internal successors, (32376), 24540 states have internal predecessors, (32376), 10866 states have call successors, (10866), 2829 states have call predecessors, (10866), 2821 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:19:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37892 states to 37892 states and 54155 transitions. [2022-12-14 14:19:28,941 INFO L78 Accepts]: Start accepts. Automaton has 37892 states and 54155 transitions. Word has length 1191 [2022-12-14 14:19:28,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:28,942 INFO L495 AbstractCegarLoop]: Abstraction has 37892 states and 54155 transitions. [2022-12-14 14:19:28,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-12-14 14:19:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 37892 states and 54155 transitions. [2022-12-14 14:19:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2022-12-14 14:19:28,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:28,957 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:28,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:19:28,957 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 14:19:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -944995193, now seen corresponding path program 1 times [2022-12-14 14:19:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:28,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668657537] [2022-12-14 14:19:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 48905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48899 trivial. 0 not checked. [2022-12-14 14:19:30,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:19:30,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668657537] [2022-12-14 14:19:30,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668657537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:19:30,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:19:30,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:19:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772807909] [2022-12-14 14:19:30,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:19:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:19:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:19:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:19:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:19:30,443 INFO L87 Difference]: Start difference. First operand 37892 states and 54155 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-12-14 14:19:36,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:38,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:47,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:51,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:19:56,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:56,835 INFO L93 Difference]: Finished difference Result 37998 states and 54217 transitions. [2022-12-14 14:19:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:19:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 1197 [2022-12-14 14:19:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:56,962 INFO L225 Difference]: With dead ends: 37998 [2022-12-14 14:19:56,962 INFO L226 Difference]: Without dead ends: 37996 [2022-12-14 14:19:56,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:19:56,973 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 3665 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3673 SdHoareTripleChecker+Valid, 10300 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:56,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3673 Valid, 10300 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1640 Invalid, 1 Unknown, 0 Unchecked, 24.5s Time] [2022-12-14 14:19:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37996 states. [2022-12-14 14:19:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37996 to 37994. [2022-12-14 14:19:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37994 states, 24261 states have (on average 1.3369193355591278) internal successors, (32435), 24599 states have internal predecessors, (32435), 10866 states have call successors, (10866), 2872 states have call predecessors, (10866), 2864 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:19:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37994 states to 37994 states and 54214 transitions. [2022-12-14 14:19:58,741 INFO L78 Accepts]: Start accepts. Automaton has 37994 states and 54214 transitions. Word has length 1197 [2022-12-14 14:19:58,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:58,742 INFO L495 AbstractCegarLoop]: Abstraction has 37994 states and 54214 transitions. [2022-12-14 14:19:58,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-12-14 14:19:58,742 INFO L276 IsEmpty]: Start isEmpty. Operand 37994 states and 54214 transitions. [2022-12-14 14:19:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2022-12-14 14:19:58,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:58,759 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:19:58,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:19:58,760 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 14:19:58,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:58,760 INFO L85 PathProgramCache]: Analyzing trace with hash 129420046, now seen corresponding path program 1 times [2022-12-14 14:19:58,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:58,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868574028] [2022-12-14 14:19:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 48919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48911 trivial. 0 not checked. [2022-12-14 14:20:00,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:00,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868574028] [2022-12-14 14:20:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868574028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:00,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:00,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:20:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539840002] [2022-12-14 14:20:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:20:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:20:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:20:00,132 INFO L87 Difference]: Start difference. First operand 37994 states and 54214 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 14:20:11,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:20:20,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:20:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:27,031 INFO L93 Difference]: Finished difference Result 38000 states and 54219 transitions. [2022-12-14 14:20:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:20:27,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1202 [2022-12-14 14:20:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:27,143 INFO L225 Difference]: With dead ends: 38000 [2022-12-14 14:20:27,143 INFO L226 Difference]: Without dead ends: 37998 [2022-12-14 14:20:27,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:20:27,160 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:27,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3697 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 24.8s Time] [2022-12-14 14:20:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37998 states. [2022-12-14 14:20:28,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37998 to 37998. [2022-12-14 14:20:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37998 states, 24264 states have (on average 1.3368776788658094) internal successors, (32438), 24602 states have internal predecessors, (32438), 10866 states have call successors, (10866), 2873 states have call predecessors, (10866), 2865 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:20:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37998 states to 37998 states and 54217 transitions. [2022-12-14 14:20:29,115 INFO L78 Accepts]: Start accepts. Automaton has 37998 states and 54217 transitions. Word has length 1202 [2022-12-14 14:20:29,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:29,116 INFO L495 AbstractCegarLoop]: Abstraction has 37998 states and 54217 transitions. [2022-12-14 14:20:29,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 14:20:29,117 INFO L276 IsEmpty]: Start isEmpty. Operand 37998 states and 54217 transitions. [2022-12-14 14:20:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2022-12-14 14:20:29,133 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:29,133 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:29,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:20:29,134 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 14:20:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1525254374, now seen corresponding path program 1 times [2022-12-14 14:20:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:29,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216353806] [2022-12-14 14:20:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 48936 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48926 trivial. 0 not checked. [2022-12-14 14:20:30,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:30,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216353806] [2022-12-14 14:20:30,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216353806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:30,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:30,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:20:30,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622531177] [2022-12-14 14:20:30,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:30,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:20:30,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:30,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:20:30,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:20:30,515 INFO L87 Difference]: Start difference. First operand 37998 states and 54217 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-12-14 14:20:47,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:20:50,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:20:56,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:56,424 INFO L93 Difference]: Finished difference Result 38004 states and 54222 transitions. [2022-12-14 14:20:56,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:20:56,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1206 [2022-12-14 14:20:56,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:56,558 INFO L225 Difference]: With dead ends: 38004 [2022-12-14 14:20:56,559 INFO L226 Difference]: Without dead ends: 38002 [2022-12-14 14:20:56,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:20:56,570 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:56,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 23.7s Time] [2022-12-14 14:20:56,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38002 states. [2022-12-14 14:20:58,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38002 to 38002. [2022-12-14 14:20:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38002 states, 24267 states have (on average 1.3368360324720814) internal successors, (32441), 24605 states have internal predecessors, (32441), 10866 states have call successors, (10866), 2874 states have call predecessors, (10866), 2866 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:20:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38002 states to 38002 states and 54220 transitions. [2022-12-14 14:20:58,609 INFO L78 Accepts]: Start accepts. Automaton has 38002 states and 54220 transitions. Word has length 1206 [2022-12-14 14:20:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:58,610 INFO L495 AbstractCegarLoop]: Abstraction has 38002 states and 54220 transitions. [2022-12-14 14:20:58,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-12-14 14:20:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 38002 states and 54220 transitions. [2022-12-14 14:20:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2022-12-14 14:20:58,628 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:58,629 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:58,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:20:58,629 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 14:20:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1750260111, now seen corresponding path program 1 times [2022-12-14 14:20:58,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:58,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199539840] [2022-12-14 14:20:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:58,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 48958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48946 trivial. 0 not checked. [2022-12-14 14:21:00,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:00,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199539840] [2022-12-14 14:21:00,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199539840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:00,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:00,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:21:00,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972010559] [2022-12-14 14:21:00,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:00,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:00,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:00,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:00,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:00,005 INFO L87 Difference]: Start difference. First operand 38002 states and 54220 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-12-14 14:21:16,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:21:20,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:21:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:27,199 INFO L93 Difference]: Finished difference Result 38008 states and 54225 transitions. [2022-12-14 14:21:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:21:27,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) Word has length 1211 [2022-12-14 14:21:27,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:27,304 INFO L225 Difference]: With dead ends: 38008 [2022-12-14 14:21:27,304 INFO L226 Difference]: Without dead ends: 38006 [2022-12-14 14:21:27,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:21:27,319 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:27,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 24.8s Time] [2022-12-14 14:21:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38006 states. [2022-12-14 14:21:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38006 to 38006. [2022-12-14 14:21:29,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38006 states, 24270 states have (on average 1.3367943963741244) internal successors, (32444), 24608 states have internal predecessors, (32444), 10866 states have call successors, (10866), 2875 states have call predecessors, (10866), 2867 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:21:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38006 states to 38006 states and 54223 transitions. [2022-12-14 14:21:29,521 INFO L78 Accepts]: Start accepts. Automaton has 38006 states and 54223 transitions. Word has length 1211 [2022-12-14 14:21:29,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:29,522 INFO L495 AbstractCegarLoop]: Abstraction has 38006 states and 54223 transitions. [2022-12-14 14:21:29,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (127), 2 states have call predecessors, (127), 2 states have call successors, (127) [2022-12-14 14:21:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 38006 states and 54223 transitions. [2022-12-14 14:21:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1218 [2022-12-14 14:21:29,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:29,540 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:29,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:21:29,540 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 14:21:29,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:29,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1143360313, now seen corresponding path program 1 times [2022-12-14 14:21:29,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:29,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273814289] [2022-12-14 14:21:29,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:29,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 48985 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48971 trivial. 0 not checked. [2022-12-14 14:21:30,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:30,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273814289] [2022-12-14 14:21:30,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273814289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:30,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:30,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:21:30,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857459309] [2022-12-14 14:21:30,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:30,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:21:30,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:21:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:21:30,942 INFO L87 Difference]: Start difference. First operand 38006 states and 54223 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (130), 3 states have call predecessors, (130), 1 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2022-12-14 14:21:50,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:21:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:57,022 INFO L93 Difference]: Finished difference Result 38012 states and 54228 transitions. [2022-12-14 14:21:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:21:57,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (130), 3 states have call predecessors, (130), 1 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) Word has length 1217 [2022-12-14 14:21:57,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:57,134 INFO L225 Difference]: With dead ends: 38012 [2022-12-14 14:21:57,134 INFO L226 Difference]: Without dead ends: 38008 [2022-12-14 14:21:57,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:21:57,146 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:57,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3694 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 23.6s Time] [2022-12-14 14:21:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38008 states. [2022-12-14 14:21:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38008 to 38008. [2022-12-14 14:21:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38008 states, 24272 states have (on average 1.3367254449571522) internal successors, (32445), 24609 states have internal predecessors, (32445), 10866 states have call successors, (10866), 2876 states have call predecessors, (10866), 2867 states have return successors, (10913), 10693 states have call predecessors, (10913), 10862 states have call successors, (10913) [2022-12-14 14:21:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38008 states to 38008 states and 54224 transitions. [2022-12-14 14:21:59,462 INFO L78 Accepts]: Start accepts. Automaton has 38008 states and 54224 transitions. Word has length 1217 [2022-12-14 14:21:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:59,463 INFO L495 AbstractCegarLoop]: Abstraction has 38008 states and 54224 transitions. [2022-12-14 14:21:59,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (130), 3 states have call predecessors, (130), 1 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2022-12-14 14:21:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 38008 states and 54224 transitions. [2022-12-14 14:21:59,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2022-12-14 14:21:59,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:59,489 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:59,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:21:59,489 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 14:21:59,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash -353121361, now seen corresponding path program 1 times [2022-12-14 14:21:59,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:59,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950397862] [2022-12-14 14:21:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:59,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 49014 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 48998 trivial. 0 not checked. [2022-12-14 14:22:00,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:00,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950397862] [2022-12-14 14:22:00,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950397862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:00,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:00,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:22:00,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833147734] [2022-12-14 14:22:00,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:00,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:22:00,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:00,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:22:00,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:22:00,912 INFO L87 Difference]: Start difference. First operand 38008 states and 54224 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (131), 3 states have call predecessors, (131), 1 states have return successors, (129), 2 states have call predecessors, (129), 2 states have call successors, (129) [2022-12-14 14:22:10,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:20,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:26,962 INFO L93 Difference]: Finished difference Result 38008 states and 54224 transitions. [2022-12-14 14:22:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:22:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (131), 3 states have call predecessors, (131), 1 states have return successors, (129), 2 states have call predecessors, (129), 2 states have call successors, (129) Word has length 1221 [2022-12-14 14:22:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:27,062 INFO L225 Difference]: With dead ends: 38008 [2022-12-14 14:22:27,062 INFO L226 Difference]: Without dead ends: 37832 [2022-12-14 14:22:27,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:22:27,075 INFO L413 NwaCegarLoop]: 3421 mSDtfsCounter, 3686 mSDsluCounter, 6833 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 10254 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:27,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 10254 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1623 Invalid, 1 Unknown, 0 Unchecked, 23.4s Time] [2022-12-14 14:22:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37832 states. [2022-12-14 14:22:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37832 to 37832. [2022-12-14 14:22:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37832 states, 24221 states have (on average 1.3354527063292185) internal successors, (32346), 24510 states have internal predecessors, (32346), 10758 states have call successors, (10758), 2850 states have call predecessors, (10758), 2851 states have return successors, (10809), 10642 states have call predecessors, (10809), 10758 states have call successors, (10809) [2022-12-14 14:22:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37832 states to 37832 states and 53913 transitions. [2022-12-14 14:22:29,507 INFO L78 Accepts]: Start accepts. Automaton has 37832 states and 53913 transitions. Word has length 1221 [2022-12-14 14:22:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:29,508 INFO L495 AbstractCegarLoop]: Abstraction has 37832 states and 53913 transitions. [2022-12-14 14:22:29,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (131), 3 states have call predecessors, (131), 1 states have return successors, (129), 2 states have call predecessors, (129), 2 states have call successors, (129) [2022-12-14 14:22:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 37832 states and 53913 transitions. [2022-12-14 14:22:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2022-12-14 14:22:29,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:29,529 INFO L195 NwaCegarLoop]: trace histogram [115, 110, 110, 110, 110, 110, 110, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:29,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:22:29,530 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:22:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1658064738, now seen corresponding path program 1 times [2022-12-14 14:22:29,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:29,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517580364] [2022-12-14 14:22:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 49122 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 49110 trivial. 0 not checked. [2022-12-14 14:22:30,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:30,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517580364] [2022-12-14 14:22:30,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517580364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:30,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:30,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:22:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087953806] [2022-12-14 14:22:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:30,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:22:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:22:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:30,411 INFO L87 Difference]: Start difference. First operand 37832 states and 53913 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) [2022-12-14 14:22:34,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 14:22:45,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:50,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:59,404 INFO L93 Difference]: Finished difference Result 91681 states and 130722 transitions. [2022-12-14 14:22:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:59,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) Word has length 1222 [2022-12-14 14:22:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:59,562 INFO L225 Difference]: With dead ends: 91681 [2022-12-14 14:22:59,562 INFO L226 Difference]: Without dead ends: 55364 [2022-12-14 14:22:59,638 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 14:22:59,639 INFO L413 NwaCegarLoop]: 5372 mSDtfsCounter, 3499 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8728 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:59,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8728 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1440 Invalid, 2 Unknown, 0 Unchecked, 24.9s Time] [2022-12-14 14:22:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55364 states. [2022-12-14 14:23:03,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55364 to 55343. [2022-12-14 14:23:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55343 states, 35458 states have (on average 1.3357211348637825) internal successors, (47362), 35886 states have internal predecessors, (47362), 15698 states have call successors, (15698), 4184 states have call predecessors, (15698), 4185 states have return successors, (15773), 15524 states have call predecessors, (15773), 15698 states have call successors, (15773) [2022-12-14 14:23:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55343 states to 55343 states and 78833 transitions. [2022-12-14 14:23:03,260 INFO L78 Accepts]: Start accepts. Automaton has 55343 states and 78833 transitions. Word has length 1222 [2022-12-14 14:23:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:03,261 INFO L495 AbstractCegarLoop]: Abstraction has 55343 states and 78833 transitions. [2022-12-14 14:23:03,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (126), 3 states have call predecessors, (126), 3 states have call successors, (126) [2022-12-14 14:23:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 55343 states and 78833 transitions. [2022-12-14 14:23:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2022-12-14 14:23:03,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:03,286 INFO L195 NwaCegarLoop]: trace histogram [115, 110, 110, 110, 110, 110, 110, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:03,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 14:23:03,286 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:23:03,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:03,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1393545062, now seen corresponding path program 1 times [2022-12-14 14:23:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:03,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086328386] [2022-12-14 14:23:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 49127 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49120 trivial. 0 not checked. [2022-12-14 14:23:04,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:04,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086328386] [2022-12-14 14:23:04,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086328386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:04,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:04,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:23:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867206799] [2022-12-14 14:23:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:04,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:04,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:04,114 INFO L87 Difference]: Start difference. First operand 55343 states and 78833 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-12-14 14:23:18,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:33,804 INFO L93 Difference]: Finished difference Result 134013 states and 190954 transitions. [2022-12-14 14:23:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 1228 [2022-12-14 14:23:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:34,043 INFO L225 Difference]: With dead ends: 134013 [2022-12-14 14:23:34,043 INFO L226 Difference]: Without dead ends: 80185 [2022-12-14 14:23:34,163 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 14:23:34,163 INFO L413 NwaCegarLoop]: 6352 mSDtfsCounter, 3477 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3480 SdHoareTripleChecker+Valid, 9707 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:34,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3480 Valid, 9707 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1612 Invalid, 1 Unknown, 0 Unchecked, 24.0s Time] [2022-12-14 14:23:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80185 states. [2022-12-14 14:23:39,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80185 to 80156. [2022-12-14 14:23:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80156 states, 51419 states have (on average 1.3360430969097026) internal successors, (68698), 52042 states have internal predecessors, (68698), 22654 states have call successors, (22654), 6080 states have call predecessors, (22654), 6081 states have return successors, (22765), 22390 states have call predecessors, (22765), 22654 states have call successors, (22765) [2022-12-14 14:23:39,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80156 states to 80156 states and 114117 transitions. [2022-12-14 14:23:39,427 INFO L78 Accepts]: Start accepts. Automaton has 80156 states and 114117 transitions. Word has length 1228 [2022-12-14 14:23:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:39,428 INFO L495 AbstractCegarLoop]: Abstraction has 80156 states and 114117 transitions. [2022-12-14 14:23:39,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-12-14 14:23:39,428 INFO L276 IsEmpty]: Start isEmpty. Operand 80156 states and 114117 transitions. [2022-12-14 14:23:39,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1240 [2022-12-14 14:23:39,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:39,458 INFO L195 NwaCegarLoop]: trace histogram [115, 110, 110, 110, 110, 110, 110, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:39,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 14:23:39,458 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 14:23:39,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1168048964, now seen corresponding path program 1 times [2022-12-14 14:23:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:39,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680876128] [2022-12-14 14:23:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:39,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 49122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49115 trivial. 0 not checked. [2022-12-14 14:23:40,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:40,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680876128] [2022-12-14 14:23:40,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680876128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:40,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:40,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:23:40,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9505987] [2022-12-14 14:23:40,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:40,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:40,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:40,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:40,039 INFO L87 Difference]: Start difference. First operand 80156 states and 114117 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-12-14 14:23:54,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:03,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:13,668 INFO L93 Difference]: Finished difference Result 196659 states and 280112 transitions. [2022-12-14 14:24:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:24:13,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 1239 [2022-12-14 14:24:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:14,162 INFO L225 Difference]: With dead ends: 196659 [2022-12-14 14:24:14,162 INFO L226 Difference]: Without dead ends: 118018 [2022-12-14 14:24:14,398 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 14:24:14,398 INFO L413 NwaCegarLoop]: 6355 mSDtfsCounter, 3478 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 9714 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:14,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3481 Valid, 9714 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1606 Invalid, 1 Unknown, 0 Unchecked, 25.4s Time] [2022-12-14 14:24:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118018 states. [2022-12-14 14:24:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118018 to 117977. [2022-12-14 14:24:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117977 states, 75753 states have (on average 1.3372143677478119) internal successors, (101298), 76688 states have internal predecessors, (101298), 33276 states have call successors, (33276), 8945 states have call predecessors, (33276), 8946 states have return successors, (33441), 32868 states have call predecessors, (33441), 33276 states have call successors, (33441) [2022-12-14 14:24:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117977 states to 117977 states and 168015 transitions. [2022-12-14 14:24:22,957 INFO L78 Accepts]: Start accepts. Automaton has 117977 states and 168015 transitions. Word has length 1239 [2022-12-14 14:24:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:22,958 INFO L495 AbstractCegarLoop]: Abstraction has 117977 states and 168015 transitions. [2022-12-14 14:24:22,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 3 states have call successors, (127), 2 states have call predecessors, (127), 1 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-12-14 14:24:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 117977 states and 168015 transitions. [2022-12-14 14:24:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1253 [2022-12-14 14:24:22,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:22,999 INFO L195 NwaCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:24:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 14:24:22,999 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 14:24:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:23,000 INFO L85 PathProgramCache]: Analyzing trace with hash 478769670, now seen corresponding path program 1 times [2022-12-14 14:24:23,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:23,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268906371] [2022-12-14 14:24:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 49605 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49605 trivial. 0 not checked. [2022-12-14 14:24:25,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:25,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268906371] [2022-12-14 14:24:25,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268906371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:25,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:24:25,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:24:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786713523] [2022-12-14 14:24:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:24:25,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:24:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:25,248 INFO L87 Difference]: Start difference. First operand 117977 states and 168015 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-12-14 14:24:37,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:44,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:54,944 INFO L93 Difference]: Finished difference Result 118149 states and 168185 transitions. [2022-12-14 14:24:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:24:54,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 1252 [2022-12-14 14:24:54,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:55,362 INFO L225 Difference]: With dead ends: 118149 [2022-12-14 14:24:55,362 INFO L226 Difference]: Without dead ends: 118147 [2022-12-14 14:24:55,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:24:55,398 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 3602 mSDsluCounter, 6799 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3607 SdHoareTripleChecker+Valid, 10184 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:55,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3607 Valid, 10184 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1624 Invalid, 1 Unknown, 0 Unchecked, 22.8s Time] [2022-12-14 14:24:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118147 states. [2022-12-14 14:25:02,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118147 to 118145. [2022-12-14 14:25:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118145 states, 75879 states have (on average 1.3366544103111533) internal successors, (101424), 76814 states have internal predecessors, (101424), 33276 states have call successors, (33276), 8987 states have call predecessors, (33276), 8988 states have return successors, (33441), 32868 states have call predecessors, (33441), 33276 states have call successors, (33441) [2022-12-14 14:25:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118145 states to 118145 states and 168141 transitions. [2022-12-14 14:25:03,201 INFO L78 Accepts]: Start accepts. Automaton has 118145 states and 168141 transitions. Word has length 1252 [2022-12-14 14:25:03,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:03,202 INFO L495 AbstractCegarLoop]: Abstraction has 118145 states and 168141 transitions. [2022-12-14 14:25:03,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2022-12-14 14:25:03,202 INFO L276 IsEmpty]: Start isEmpty. Operand 118145 states and 168141 transitions. [2022-12-14 14:25:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1269 [2022-12-14 14:25:03,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:03,250 INFO L195 NwaCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 7, 7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:25:03,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 14:25:03,250 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 14:25:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1200793823, now seen corresponding path program 1 times [2022-12-14 14:25:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:25:03,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577806526] [2022-12-14 14:25:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:03,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:25:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 49638 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 49622 trivial. 0 not checked. [2022-12-14 14:25:04,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:25:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577806526] [2022-12-14 14:25:04,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577806526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:25:04,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:25:04,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:25:04,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247400476] [2022-12-14 14:25:04,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:25:04,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:25:04,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:25:04,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:25:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:25:04,140 INFO L87 Difference]: Start difference. First operand 118145 states and 168141 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2022-12-14 14:25:07,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 14:25:15,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:20,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:32,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:42,247 INFO L93 Difference]: Finished difference Result 286104 states and 407552 transitions. [2022-12-14 14:25:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:25:42,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) Word has length 1268 [2022-12-14 14:25:42,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:42,830 INFO L225 Difference]: With dead ends: 286104 [2022-12-14 14:25:42,830 INFO L226 Difference]: Without dead ends: 169474 [2022-12-14 14:25:43,237 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 14:25:43,238 INFO L413 NwaCegarLoop]: 6271 mSDtfsCounter, 3393 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 9599 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:43,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 9599 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1627 Invalid, 1 Unknown, 0 Unchecked, 27.2s Time] [2022-12-14 14:25:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169474 states. [2022-12-14 14:25:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169474 to 169451. [2022-12-14 14:25:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169451 states, 109038 states have (on average 1.3358553898640841) internal successors, (145659), 110354 states have internal predecessors, (145659), 47430 states have call successors, (47430), 12980 states have call predecessors, (47430), 12981 states have return successors, (47676), 46839 states have call predecessors, (47676), 47430 states have call successors, (47676) [2022-12-14 14:25:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169451 states to 169451 states and 240765 transitions. [2022-12-14 14:25:55,429 INFO L78 Accepts]: Start accepts. Automaton has 169451 states and 240765 transitions. Word has length 1268 [2022-12-14 14:25:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:55,431 INFO L495 AbstractCegarLoop]: Abstraction has 169451 states and 240765 transitions. [2022-12-14 14:25:55,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2022-12-14 14:25:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 169451 states and 240765 transitions. [2022-12-14 14:25:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2022-12-14 14:25:55,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:55,501 INFO L195 NwaCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:25:55,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 14:25:55,501 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:25:55,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:55,502 INFO L85 PathProgramCache]: Analyzing trace with hash 977517013, now seen corresponding path program 1 times [2022-12-14 14:25:55,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:25:55,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992365553] [2022-12-14 14:25:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:25:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 49611 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49611 trivial. 0 not checked. [2022-12-14 14:25:57,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:25:57,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992365553] [2022-12-14 14:25:57,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992365553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:25:57,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:25:57,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:25:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862092733] [2022-12-14 14:25:57,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:25:57,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:25:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:25:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:25:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:25:57,924 INFO L87 Difference]: Start difference. First operand 169451 states and 240765 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 14:26:13,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:16,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:30,167 INFO L93 Difference]: Finished difference Result 169453 states and 240766 transitions. [2022-12-14 14:26:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:26:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1265 [2022-12-14 14:26:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:30,734 INFO L225 Difference]: With dead ends: 169453 [2022-12-14 14:26:30,734 INFO L226 Difference]: Without dead ends: 169451 [2022-12-14 14:26:30,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:26:30,794 INFO L413 NwaCegarLoop]: 3388 mSDtfsCounter, 3561 mSDsluCounter, 6862 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 10250 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:30,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 10250 Invalid, 1625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1622 Invalid, 1 Unknown, 0 Unchecked, 22.1s Time] [2022-12-14 14:26:30,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169451 states. [2022-12-14 14:26:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169451 to 169449. [2022-12-14 14:26:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169449 states, 109037 states have (on average 1.3353357117308804) internal successors, (145601), 110352 states have internal predecessors, (145601), 47430 states have call successors, (47430), 12980 states have call predecessors, (47430), 12981 states have return successors, (47676), 46839 states have call predecessors, (47676), 47430 states have call successors, (47676) [2022-12-14 14:26:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169449 states to 169449 states and 240707 transitions. [2022-12-14 14:26:42,578 INFO L78 Accepts]: Start accepts. Automaton has 169449 states and 240707 transitions. Word has length 1265 [2022-12-14 14:26:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:42,579 INFO L495 AbstractCegarLoop]: Abstraction has 169449 states and 240707 transitions. [2022-12-14 14:26:42,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (129), 3 states have call predecessors, (129), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 14:26:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 169449 states and 240707 transitions. [2022-12-14 14:26:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2022-12-14 14:26:42,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:42,640 INFO L195 NwaCegarLoop]: trace histogram [117, 110, 110, 110, 110, 110, 110, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:26:42,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 14:26:42,640 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:26:42,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:42,641 INFO L85 PathProgramCache]: Analyzing trace with hash 278508294, now seen corresponding path program 1 times [2022-12-14 14:26:42,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:42,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956544023] [2022-12-14 14:26:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:42,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 49617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49617 trivial. 0 not checked. [2022-12-14 14:26:44,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:44,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956544023] [2022-12-14 14:26:44,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956544023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:44,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:44,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:26:44,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638268202] [2022-12-14 14:26:44,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:44,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:26:44,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:44,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:26:44,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:26:44,303 INFO L87 Difference]: Start difference. First operand 169449 states and 240707 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (134), 3 states have call predecessors, (134), 2 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2022-12-14 14:26:57,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:26,656 INFO L93 Difference]: Finished difference Result 169451 states and 240708 transitions. [2022-12-14 14:27:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:27:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 2 states have call successors, (134), 3 states have call predecessors, (134), 2 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) Word has length 1276 [2022-12-14 14:27:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:27,262 INFO L225 Difference]: With dead ends: 169451 [2022-12-14 14:27:27,262 INFO L226 Difference]: Without dead ends: 169449 [2022-12-14 14:27:27,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:27:27,323 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 28 mSDsluCounter, 10114 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13493 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:27,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13493 Invalid, 2158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2156 Invalid, 1 Unknown, 0 Unchecked, 31.5s Time] [2022-12-14 14:27:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169449 states.