./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 4e7fbc69 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 14:55:56,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:55:56,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:55:56,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:55:56,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:55:56,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:55:56,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:55:56,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:55:56,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:55:56,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:55:56,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:55:56,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:55:56,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:55:56,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:55:56,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:55:56,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:55:56,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:55:56,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:55:56,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:55:56,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:55:56,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:55:56,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:55:56,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:55:56,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:55:56,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:55:56,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:55:56,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:55:56,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:55:56,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:55:56,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:55:56,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:55:56,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:55:56,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:55:56,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:55:56,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:55:56,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:55:56,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:55:56,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:55:56,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:55:56,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:55:56,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:55:56,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:55:56,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:55:56,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:55:56,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:55:56,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:55:56,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:55:56,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:55:56,380 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:55:56,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:55:56,380 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:55:56,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:55:56,381 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:55:56,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:55:56,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:55:56,381 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:55:56,382 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:55:56,382 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:55:56,382 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:55:56,382 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:55:56,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:55:56,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:55:56,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:55:56,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:55:56,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:55:56,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:55:56,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:55:56,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:55:56,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:55:56,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:55:56,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:55:56,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:55:56,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:55:56,386 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:55:56,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:55:56,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:55:56,387 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:55:56,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:55:56,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:55:56,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:55:56,388 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2022-11-23 14:55:56,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:55:56,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:55:56,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:55:56,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:55:56,684 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:55:56,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-23 14:55:59,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:56:00,454 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:56:00,455 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-23 14:56:00,524 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/data/5999fed12/da9a1ff00973411d854ace725470e9c9/FLAG1e833ab68 [2022-11-23 14:56:00,543 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/data/5999fed12/da9a1ff00973411d854ace725470e9c9 [2022-11-23 14:56:00,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:56:00,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:56:00,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:56:00,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:56:00,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:56:00,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:56:00" (1/1) ... [2022-11-23 14:56:00,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197bfc66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:00, skipping insertion in model container [2022-11-23 14:56:00,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:56:00" (1/1) ... [2022-11-23 14:56:00,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:56:00,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:56:05,931 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:05,936 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:05,936 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:05,937 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:05,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:56:06,041 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:56:06,614 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:06,615 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:06,615 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:06,615 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_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/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] [2022-11-23 14:56:06,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:56:06,939 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:56:06,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06 WrapperNode [2022-11-23 14:56:06,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:56:06,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:56:06,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:56:06,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:56:06,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,490 INFO L138 Inliner]: procedures = 710, calls = 4710, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9466 [2022-11-23 14:56:07,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:56:07,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:56:07,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:56:07,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:56:07,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:07,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:08,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:08,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:08,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:56:08,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:56:08,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:56:08,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:56:08,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (1/1) ... [2022-11-23 14:56:08,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:56:08,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:56:08,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:56:08,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8236c68-18a1-4c6b-a2e2-dad13622b3ed/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:56:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2022-11-23 14:56:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2022-11-23 14:56:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2022-11-23 14:56:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2022-11-23 14:56:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2022-11-23 14:56:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2022-11-23 14:56:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:56:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:56:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-23 14:56:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2022-11-23 14:56:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2022-11-23 14:56:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2022-11-23 14:56:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2022-11-23 14:56:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2022-11-23 14:56:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2022-11-23 14:56:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2022-11-23 14:56:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2022-11-23 14:56:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2022-11-23 14:56:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:56:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:56:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2022-11-23 14:56:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2022-11-23 14:56:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2022-11-23 14:56:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2022-11-23 14:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2022-11-23 14:56:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2022-11-23 14:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2022-11-23 14:56:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2022-11-23 14:56:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:56:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:56:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:56:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:56:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2022-11-23 14:56:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2022-11-23 14:56:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2022-11-23 14:56:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2022-11-23 14:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2022-11-23 14:56:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2022-11-23 14:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2022-11-23 14:56:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2022-11-23 14:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:56:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:56:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2022-11-23 14:56:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2022-11-23 14:56:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2022-11-23 14:56:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2022-11-23 14:56:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2022-11-23 14:56:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2022-11-23 14:56:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2022-11-23 14:56:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2022-11-23 14:56:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2022-11-23 14:56:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2022-11-23 14:56:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-11-23 14:56:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-11-23 14:56:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2022-11-23 14:56:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2022-11-23 14:56:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2022-11-23 14:56:08,272 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2022-11-23 14:56:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2022-11-23 14:56:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2022-11-23 14:56:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2022-11-23 14:56:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2022-11-23 14:56:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:56:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:56:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:56:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:56:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2022-11-23 14:56:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2022-11-23 14:56:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2022-11-23 14:56:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2022-11-23 14:56:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:56:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:56:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2022-11-23 14:56:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2022-11-23 14:56:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:56:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:56:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2022-11-23 14:56:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2022-11-23 14:56:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-23 14:56:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-23 14:56:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2022-11-23 14:56:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2022-11-23 14:56:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:56:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2022-11-23 14:56:08,278 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2022-11-23 14:56:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:56:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:56:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-23 14:56:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-23 14:56:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2022-11-23 14:56:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2022-11-23 14:56:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:56:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:56:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2022-11-23 14:56:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2022-11-23 14:56:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 14:56:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 14:56:08,280 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2022-11-23 14:56:08,280 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2022-11-23 14:56:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-23 14:56:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-23 14:56:08,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:56:08,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:56:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2022-11-23 14:56:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2022-11-23 14:56:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2022-11-23 14:56:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2022-11-23 14:56:08,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:56:08,287 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2022-11-23 14:56:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2022-11-23 14:56:08,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:56:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:56:08,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:56:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:56:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:56:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:56:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2022-11-23 14:56:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2022-11-23 14:56:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2022-11-23 14:56:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2022-11-23 14:56:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2022-11-23 14:56:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2022-11-23 14:56:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2022-11-23 14:56:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:56:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 14:56:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 14:56:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 14:56:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 14:56:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-23 14:56:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-23 14:56:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-23 14:56:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-23 14:56:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-23 14:56:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-23 14:56:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2022-11-23 14:56:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2022-11-23 14:56:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-11-23 14:56:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2022-11-23 14:56:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:56:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:56:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:56:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2022-11-23 14:56:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2022-11-23 14:56:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2022-11-23 14:56:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2022-11-23 14:56:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:56:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:56:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2022-11-23 14:56:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2022-11-23 14:56:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:56:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:56:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2022-11-23 14:56:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2022-11-23 14:56:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2022-11-23 14:56:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2022-11-23 14:56:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-23 14:56:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2022-11-23 14:56:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2022-11-23 14:56:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2022-11-23 14:56:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2022-11-23 14:56:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2022-11-23 14:56:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2022-11-23 14:56:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2022-11-23 14:56:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2022-11-23 14:56:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2022-11-23 14:56:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2022-11-23 14:56:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2022-11-23 14:56:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-23 14:56:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-23 14:56:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 14:56:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 14:56:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:56:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:56:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 14:56:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 14:56:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2022-11-23 14:56:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2022-11-23 14:56:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:56:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:56:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2022-11-23 14:56:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2022-11-23 14:56:08,305 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:56:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:56:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2022-11-23 14:56:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2022-11-23 14:56:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2022-11-23 14:56:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2022-11-23 14:56:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2022-11-23 14:56:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2022-11-23 14:56:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2022-11-23 14:56:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2022-11-23 14:56:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2022-11-23 14:56:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2022-11-23 14:56:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2022-11-23 14:56:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2022-11-23 14:56:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2022-11-23 14:56:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2022-11-23 14:56:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:56:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:56:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2022-11-23 14:56:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2022-11-23 14:56:08,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:56:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:56:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2022-11-23 14:56:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2022-11-23 14:56:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2022-11-23 14:56:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2022-11-23 14:56:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2022-11-23 14:56:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2022-11-23 14:56:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:56:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:56:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2022-11-23 14:56:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2022-11-23 14:56:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2022-11-23 14:56:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2022-11-23 14:56:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:56:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:56:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:56:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:56:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2022-11-23 14:56:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2022-11-23 14:56:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2022-11-23 14:56:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2022-11-23 14:56:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2022-11-23 14:56:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2022-11-23 14:56:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2022-11-23 14:56:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2022-11-23 14:56:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-23 14:56:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-23 14:56:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2022-11-23 14:56:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2022-11-23 14:56:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-23 14:56:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-23 14:56:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2022-11-23 14:56:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2022-11-23 14:56:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-23 14:56:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-23 14:56:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 14:56:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 14:56:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2022-11-23 14:56:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2022-11-23 14:56:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2022-11-23 14:56:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2022-11-23 14:56:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:56:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:56:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:56:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2022-11-23 14:56:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2022-11-23 14:56:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:56:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2022-11-23 14:56:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2022-11-23 14:56:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2022-11-23 14:56:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2022-11-23 14:56:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2022-11-23 14:56:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2022-11-23 14:56:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:56:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2022-11-23 14:56:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2022-11-23 14:56:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2022-11-23 14:56:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2022-11-23 14:56:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-23 14:56:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-23 14:56:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2022-11-23 14:56:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2022-11-23 14:56:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-23 14:56:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-23 14:56:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 14:56:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 14:56:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-11-23 14:56:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-11-23 14:56:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:56:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:56:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-11-23 14:56:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-11-23 14:56:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2022-11-23 14:56:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2022-11-23 14:56:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:56:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:56:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2022-11-23 14:56:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2022-11-23 14:56:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2022-11-23 14:56:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2022-11-23 14:56:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2022-11-23 14:56:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2022-11-23 14:56:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2022-11-23 14:56:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2022-11-23 14:56:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2022-11-23 14:56:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2022-11-23 14:56:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2022-11-23 14:56:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2022-11-23 14:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2022-11-23 14:56:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2022-11-23 14:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-23 14:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2022-11-23 14:56:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2022-11-23 14:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:56:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:56:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2022-11-23 14:56:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2022-11-23 14:56:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2022-11-23 14:56:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2022-11-23 14:56:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2022-11-23 14:56:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2022-11-23 14:56:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2022-11-23 14:56:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2022-11-23 14:56:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2022-11-23 14:56:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2022-11-23 14:56:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2022-11-23 14:56:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2022-11-23 14:56:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:56:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2022-11-23 14:56:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2022-11-23 14:56:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:56:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:56:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2022-11-23 14:56:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2022-11-23 14:56:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2022-11-23 14:56:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2022-11-23 14:56:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2022-11-23 14:56:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2022-11-23 14:56:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2022-11-23 14:56:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2022-11-23 14:56:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2022-11-23 14:56:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2022-11-23 14:56:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-23 14:56:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2022-11-23 14:56:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2022-11-23 14:56:08,325 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2022-11-23 14:56:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2022-11-23 14:56:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2022-11-23 14:56:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2022-11-23 14:56:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2022-11-23 14:56:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2022-11-23 14:56:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2022-11-23 14:56:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2022-11-23 14:56:08,326 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2022-11-23 14:56:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2022-11-23 14:56:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2022-11-23 14:56:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2022-11-23 14:56:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2022-11-23 14:56:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2022-11-23 14:56:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2022-11-23 14:56:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 14:56:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 14:56:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:56:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:56:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2022-11-23 14:56:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2022-11-23 14:56:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 14:56:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 14:56:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2022-11-23 14:56:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2022-11-23 14:56:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2022-11-23 14:56:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2022-11-23 14:56:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2022-11-23 14:56:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2022-11-23 14:56:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:56:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 14:56:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 14:56:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:56:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:56:09,999 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:56:10,006 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:56:14,909 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:57:32,196 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 14:57:32,400 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:57:34,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:57:34,532 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-23 14:57:34,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:34 BoogieIcfgContainer [2022-11-23 14:57:34,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:57:34,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:57:34,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:57:34,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:57:34,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:56:00" (1/3) ... [2022-11-23 14:57:34,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f49879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:34, skipping insertion in model container [2022-11-23 14:57:34,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:06" (2/3) ... [2022-11-23 14:57:34,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f49879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:34, skipping insertion in model container [2022-11-23 14:57:34,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:34" (3/3) ... [2022-11-23 14:57:34,555 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2022-11-23 14:57:34,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:57:34,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 14:57:34,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:57:34,703 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;@34073ed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:57:34,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 14:57:34,719 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) [2022-11-23 14:57:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2022-11-23 14:57:34,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:34,815 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] [2022-11-23 14:57:34,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:57:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash 717802290, now seen corresponding path program 1 times [2022-11-23 14:57:34,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:34,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461520578] [2022-11-23 14:57:34,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:34,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2022-11-23 14:57:37,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:37,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461520578] [2022-11-23 14:57:37,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461520578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:37,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:57:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477321066] [2022-11-23 14:57:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:37,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:57:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:57:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:37,537 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) [2022-11-23 14:57:47,704 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 [] [2022-11-23 14:57:53,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:54,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:57:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:58,265 INFO L93 Difference]: Finished difference Result 7987 states and 11760 transitions. [2022-11-23 14:57:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:57:58,268 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 [2022-11-23 14:57:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:58,349 INFO L225 Difference]: With dead ends: 7987 [2022-11-23 14:57:58,350 INFO L226 Difference]: Without dead ends: 5340 [2022-11-23 14:57:58,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:58,377 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3675 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s 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, 20.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:58,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3678 Valid, 7835 Invalid, 1190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1167 Invalid, 1 Unknown, 0 Unchecked, 20.2s Time] [2022-11-23 14:57:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5340 states. [2022-11-23 14:57:58,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5340 to 5335. [2022-11-23 14:57:58,979 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) [2022-11-23 14:57:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7742 transitions. [2022-11-23 14:57:59,033 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7742 transitions. Word has length 1124 [2022-11-23 14:57:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:59,041 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 7742 transitions. [2022-11-23 14:57:59,042 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) [2022-11-23 14:57:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7742 transitions. [2022-11-23 14:57:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-23 14:57:59,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:59,118 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] [2022-11-23 14:57:59,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:57:59,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:57:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash -418175265, now seen corresponding path program 1 times [2022-11-23 14:57:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:59,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625352275] [2022-11-23 14:57:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-23 14:58:01,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:01,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625352275] [2022-11-23 14:58:01,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625352275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:01,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:01,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552732412] [2022-11-23 14:58:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:01,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:01,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:01,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:01,300 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) [2022-11-23 14:58:10,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:11,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:12,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:15,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:58:18,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:25,537 INFO L93 Difference]: Finished difference Result 15343 states and 22240 transitions. [2022-11-23 14:58:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:25,538 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 [2022-11-23 14:58:25,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:25,619 INFO L225 Difference]: With dead ends: 15343 [2022-11-23 14:58:25,619 INFO L226 Difference]: Without dead ends: 10229 [2022-11-23 14:58:25,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:25,651 INFO L413 NwaCegarLoop]: 4281 mSDtfsCounter, 3573 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:25,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 7784 Invalid, 1215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1184 Invalid, 2 Unknown, 0 Unchecked, 23.7s Time] [2022-11-23 14:58:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2022-11-23 14:58:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 10202. [2022-11-23 14:58:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10202 states, 6447 states have (on average 1.3392275476966031) internal successors, (8634), 6538 states have internal predecessors, (8634), 3051 states have call successors, (3051), 702 states have call predecessors, (3051), 701 states have return successors, (3056), 3021 states have call predecessors, (3056), 3047 states have call successors, (3056) [2022-11-23 14:58:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 14741 transitions. [2022-11-23 14:58:26,227 INFO L78 Accepts]: Start accepts. Automaton has 10202 states and 14741 transitions. Word has length 1141 [2022-11-23 14:58:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:26,231 INFO L495 AbstractCegarLoop]: Abstraction has 10202 states and 14741 transitions. [2022-11-23 14:58:26,232 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) [2022-11-23 14:58:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 10202 states and 14741 transitions. [2022-11-23 14:58:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-11-23 14:58:26,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:26,252 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] [2022-11-23 14:58:26,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:58:26,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 14:58:26,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1980328128, now seen corresponding path program 1 times [2022-11-23 14:58:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:26,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745652430] [2022-11-23 14:58:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-23 14:58:28,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745652430] [2022-11-23 14:58:28,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745652430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:28,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:28,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502409461] [2022-11-23 14:58:28,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:28,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:28,299 INFO L87 Difference]: Start difference. First operand 10202 states and 14741 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) [2022-11-23 14:58:38,501 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 [] [2022-11-23 14:58:45,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:47,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:58:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:49,548 INFO L93 Difference]: Finished difference Result 24895 states and 35937 transitions. [2022-11-23 14:58:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:49,549 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 [2022-11-23 14:58:49,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:49,652 INFO L225 Difference]: With dead ends: 24895 [2022-11-23 14:58:49,652 INFO L226 Difference]: Without dead ends: 14914 [2022-11-23 14:58:49,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:49,705 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 3668 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s 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, 20.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:49,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 7841 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1140 Invalid, 1 Unknown, 0 Unchecked, 20.7s Time] [2022-11-23 14:58:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14914 states. [2022-11-23 14:58:50,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14914 to 14887. [2022-11-23 14:58:50,470 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) [2022-11-23 14:58:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14887 states to 14887 states and 21455 transitions. [2022-11-23 14:58:50,536 INFO L78 Accepts]: Start accepts. Automaton has 14887 states and 21455 transitions. Word has length 1141 [2022-11-23 14:58:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:50,537 INFO L495 AbstractCegarLoop]: Abstraction has 14887 states and 21455 transitions. [2022-11-23 14:58:50,537 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) [2022-11-23 14:58:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 14887 states and 21455 transitions. [2022-11-23 14:58:50,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2022-11-23 14:58:50,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:50,557 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] [2022-11-23 14:58:50,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:58:50,558 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)] === [2022-11-23 14:58:50,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2013331814, now seen corresponding path program 1 times [2022-11-23 14:58:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:50,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460939042] [2022-11-23 14:58:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-23 14:58:51,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:51,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460939042] [2022-11-23 14:58:51,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460939042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:51,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:51,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:51,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119576059] [2022-11-23 14:58:51,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:51,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:51,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:51,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:51,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:51,933 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) [2022-11-23 14:58:57,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:02,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:04,083 INFO L93 Difference]: Finished difference Result 29497 states and 42483 transitions. [2022-11-23 14:59:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:59:04,084 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 [2022-11-23 14:59:04,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:04,176 INFO L225 Difference]: With dead ends: 29497 [2022-11-23 14:59:04,176 INFO L226 Difference]: Without dead ends: 14831 [2022-11-23 14:59:04,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:04,247 INFO L413 NwaCegarLoop]: 3550 mSDtfsCounter, 3745 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s 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, 11.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:04,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3748 Valid, 3899 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-11-23 14:59:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2022-11-23 14:59:05,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 14831. [2022-11-23 14:59:05,255 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) [2022-11-23 14:59:05,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14831 states to 14831 states and 21341 transitions. [2022-11-23 14:59:05,320 INFO L78 Accepts]: Start accepts. Automaton has 14831 states and 21341 transitions. Word has length 1145 [2022-11-23 14:59:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:05,321 INFO L495 AbstractCegarLoop]: Abstraction has 14831 states and 21341 transitions. [2022-11-23 14:59:05,321 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) [2022-11-23 14:59:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand 14831 states and 21341 transitions. [2022-11-23 14:59:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2022-11-23 14:59:05,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:05,341 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] [2022-11-23 14:59:05,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:59:05,342 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)] === [2022-11-23 14:59:05,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash 385765261, now seen corresponding path program 1 times [2022-11-23 14:59:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:05,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654675118] [2022-11-23 14:59:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-23 14:59:06,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:06,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654675118] [2022-11-23 14:59:06,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654675118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:06,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:06,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527781606] [2022-11-23 14:59:06,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:06,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:06,799 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) [2022-11-23 14:59:12,569 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 [] [2022-11-23 14:59:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:18,189 INFO L93 Difference]: Finished difference Result 28931 states and 41600 transitions. [2022-11-23 14:59:18,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:59:18,190 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 [2022-11-23 14:59:18,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:18,257 INFO L225 Difference]: With dead ends: 28931 [2022-11-23 14:59:18,258 INFO L226 Difference]: Without dead ends: 14339 [2022-11-23 14:59:18,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:18,304 INFO L413 NwaCegarLoop]: 3437 mSDtfsCounter, 3619 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 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, 10.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:18,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 3786 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-23 14:59:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14339 states. [2022-11-23 14:59:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14339 to 14339. [2022-11-23 14:59:19,050 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) [2022-11-23 14:59:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20591 transitions. [2022-11-23 14:59:19,114 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20591 transitions. Word has length 1146 [2022-11-23 14:59:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:19,115 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20591 transitions. [2022-11-23 14:59:19,115 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) [2022-11-23 14:59:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20591 transitions. [2022-11-23 14:59:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2022-11-23 14:59:19,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:19,140 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] [2022-11-23 14:59:19,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:59:19,140 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)] === [2022-11-23 14:59:19,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:19,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1101303216, now seen corresponding path program 1 times [2022-11-23 14:59:19,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:19,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606552664] [2022-11-23 14:59:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:19,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2022-11-23 14:59:20,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:20,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606552664] [2022-11-23 14:59:20,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606552664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:20,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:20,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:20,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228115664] [2022-11-23 14:59:20,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:20,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:20,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:20,394 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) [2022-11-23 14:59:26,128 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 [] [2022-11-23 14:59:30,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:38,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:41,541 INFO L93 Difference]: Finished difference Result 36987 states and 53134 transitions. [2022-11-23 14:59:41,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:59:41,542 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 [2022-11-23 14:59:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:41,653 INFO L225 Difference]: With dead ends: 36987 [2022-11-23 14:59:41,653 INFO L226 Difference]: Without dead ends: 22887 [2022-11-23 14:59:41,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:41,705 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 3500 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s 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, 20.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:41,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3503 Valid, 7748 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1118 Invalid, 1 Unknown, 0 Unchecked, 20.1s Time] [2022-11-23 14:59:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22887 states. [2022-11-23 14:59:43,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22887 to 22856. [2022-11-23 14:59:43,091 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) [2022-11-23 14:59:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22856 states to 22856 states and 32827 transitions. [2022-11-23 14:59:43,193 INFO L78 Accepts]: Start accepts. Automaton has 22856 states and 32827 transitions. Word has length 1157 [2022-11-23 14:59:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:43,194 INFO L495 AbstractCegarLoop]: Abstraction has 22856 states and 32827 transitions. [2022-11-23 14:59:43,194 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) [2022-11-23 14:59:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 22856 states and 32827 transitions. [2022-11-23 14:59:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2022-11-23 14:59:43,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:43,220 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] [2022-11-23 14:59:43,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:59:43,220 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)] === [2022-11-23 14:59:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1657710978, now seen corresponding path program 1 times [2022-11-23 14:59:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:43,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273451924] [2022-11-23 14:59:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2022-11-23 14:59:44,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:44,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273451924] [2022-11-23 14:59:44,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273451924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:44,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:44,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:44,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750719479] [2022-11-23 14:59:44,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:44,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:44,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:44,794 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) [2022-11-23 14:59:53,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:01,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:03,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:07,013 INFO L93 Difference]: Finished difference Result 59988 states and 86148 transitions. [2022-11-23 15:00:07,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:00:07,014 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 [2022-11-23 15:00:07,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:07,206 INFO L225 Difference]: With dead ends: 59988 [2022-11-23 15:00:07,207 INFO L226 Difference]: Without dead ends: 37371 [2022-11-23 15:00:07,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:00:07,304 INFO L413 NwaCegarLoop]: 5234 mSDtfsCounter, 3547 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:07,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 8631 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1336 Invalid, 1 Unknown, 0 Unchecked, 20.7s Time] [2022-11-23 15:00:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37371 states. [2022-11-23 15:00:09,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37371 to 37334. [2022-11-23 15:00:09,353 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) [2022-11-23 15:00:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37334 states to 37334 states and 53530 transitions. [2022-11-23 15:00:09,484 INFO L78 Accepts]: Start accepts. Automaton has 37334 states and 53530 transitions. Word has length 1160 [2022-11-23 15:00:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:09,485 INFO L495 AbstractCegarLoop]: Abstraction has 37334 states and 53530 transitions. [2022-11-23 15:00:09,485 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) [2022-11-23 15:00:09,486 INFO L276 IsEmpty]: Start isEmpty. Operand 37334 states and 53530 transitions. [2022-11-23 15:00:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2022-11-23 15:00:09,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:09,508 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] [2022-11-23 15:00:09,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:00:09,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:00:09,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash 781984231, now seen corresponding path program 1 times [2022-11-23 15:00:09,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:09,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980292630] [2022-11-23 15:00:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 48886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2022-11-23 15:00:12,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980292630] [2022-11-23 15:00:12,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980292630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:12,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:12,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:00:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969975991] [2022-11-23 15:00:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:12,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:00:12,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:00:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:12,690 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) [2022-11-23 15:00:24,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:33,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:35,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:41,878 INFO L93 Difference]: Finished difference Result 37340 states and 53535 transitions. [2022-11-23 15:00:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:00:41,879 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 [2022-11-23 15:00:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:41,993 INFO L225 Difference]: With dead ends: 37340 [2022-11-23 15:00:41,993 INFO L226 Difference]: Without dead ends: 37338 [2022-11-23 15:00:42,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:00:42,005 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 3695 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s 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, 27.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:42,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 10254 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 27.4s Time] [2022-11-23 15:00:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37338 states. [2022-11-23 15:00:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37338 to 37338. [2022-11-23 15:00:43,930 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) [2022-11-23 15:00:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37338 states to 37338 states and 53533 transitions. [2022-11-23 15:00:44,049 INFO L78 Accepts]: Start accepts. Automaton has 37338 states and 53533 transitions. Word has length 1181 [2022-11-23 15:00:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:44,050 INFO L495 AbstractCegarLoop]: Abstraction has 37338 states and 53533 transitions. [2022-11-23 15:00:44,050 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) [2022-11-23 15:00:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 37338 states and 53533 transitions. [2022-11-23 15:00:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2022-11-23 15:00:44,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:44,075 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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] [2022-11-23 15:00:44,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:00:44,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:00:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash 712721006, now seen corresponding path program 1 times [2022-11-23 15:00:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:44,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114248129] [2022-11-23 15:00:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 48888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48886 trivial. 0 not checked. [2022-11-23 15:00:46,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:46,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114248129] [2022-11-23 15:00:46,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114248129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:46,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:46,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:00:46,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153323056] [2022-11-23 15:00:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:46,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:00:46,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:00:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:46,967 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) [2022-11-23 15:00:56,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:01,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:02,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:04,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:10,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:12,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:14,749 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 [] [2022-11-23 15:01:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:20,591 INFO L93 Difference]: Finished difference Result 37344 states and 53538 transitions. [2022-11-23 15:01:20,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:01:20,592 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 1186 [2022-11-23 15:01:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:20,721 INFO L225 Difference]: With dead ends: 37344 [2022-11-23 15:01:20,721 INFO L226 Difference]: Without dead ends: 37342 [2022-11-23 15:01:20,735 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 [2022-11-23 15:01:20,736 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 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, 31.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:20,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 31.6s Time] [2022-11-23 15:01:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37342 states. [2022-11-23 15:01:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37342 to 37342. [2022-11-23 15:01:22,757 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) [2022-11-23 15:01:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37342 states to 37342 states and 53536 transitions. [2022-11-23 15:01:22,873 INFO L78 Accepts]: Start accepts. Automaton has 37342 states and 53536 transitions. Word has length 1186 [2022-11-23 15:01:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:22,874 INFO L495 AbstractCegarLoop]: Abstraction has 37342 states and 53536 transitions. [2022-11-23 15:01:22,874 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) [2022-11-23 15:01:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand 37342 states and 53536 transitions. [2022-11-23 15:01:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2022-11-23 15:01:22,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:22,897 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] [2022-11-23 15:01:22,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:01:22,898 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:01:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1133213191, now seen corresponding path program 1 times [2022-11-23 15:01:22,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:22,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620755191] [2022-11-23 15:01:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 48894 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48890 trivial. 0 not checked. [2022-11-23 15:01:25,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:25,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620755191] [2022-11-23 15:01:25,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620755191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:25,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:01:25,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:01:25,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265758238] [2022-11-23 15:01:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:25,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:01:25,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:25,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:01:25,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:01:25,234 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) [2022-11-23 15:01:32,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:36,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:01:37,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:40,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:44,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:46,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:52,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:57,658 INFO L93 Difference]: Finished difference Result 37896 states and 54158 transitions. [2022-11-23 15:01:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:01:57,659 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 [2022-11-23 15:01:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:57,781 INFO L225 Difference]: With dead ends: 37896 [2022-11-23 15:01:57,781 INFO L226 Difference]: Without dead ends: 37894 [2022-11-23 15:01:57,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:01:57,796 INFO L413 NwaCegarLoop]: 3430 mSDtfsCounter, 3636 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 10368 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:57,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 10368 Invalid, 1639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1635 Invalid, 2 Unknown, 0 Unchecked, 30.5s Time] [2022-11-23 15:01:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37894 states. [2022-11-23 15:01:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37894 to 37892. [2022-11-23 15:01:59,911 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) [2022-11-23 15:02:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37892 states to 37892 states and 54155 transitions. [2022-11-23 15:02:00,065 INFO L78 Accepts]: Start accepts. Automaton has 37892 states and 54155 transitions. Word has length 1191 [2022-11-23 15:02:00,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:00,067 INFO L495 AbstractCegarLoop]: Abstraction has 37892 states and 54155 transitions. [2022-11-23 15:02:00,068 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) [2022-11-23 15:02:00,068 INFO L276 IsEmpty]: Start isEmpty. Operand 37892 states and 54155 transitions. [2022-11-23 15:02:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2022-11-23 15:02:00,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:00,104 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] [2022-11-23 15:02:00,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:02:00,105 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:02:00,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1435402013, now seen corresponding path program 1 times [2022-11-23 15:02:00,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:00,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558929112] [2022-11-23 15:02:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:00,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 48905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48899 trivial. 0 not checked. [2022-11-23 15:02:02,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:02,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558929112] [2022-11-23 15:02:02,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558929112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:02,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:02:02,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:02:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74686038] [2022-11-23 15:02:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:02,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:02:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:02:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:02:02,397 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) [2022-11-23 15:02:10,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:17,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:23,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:25,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:27,755 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 [] [2022-11-23 15:02:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:02:33,921 INFO L93 Difference]: Finished difference Result 37998 states and 54217 transitions. [2022-11-23 15:02:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:02:33,922 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 [2022-11-23 15:02:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:02:34,039 INFO L225 Difference]: With dead ends: 37998 [2022-11-23 15:02:34,039 INFO L226 Difference]: Without dead ends: 37996 [2022-11-23 15:02:34,052 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 [2022-11-23 15:02:34,053 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 3665 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s 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, 29.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:02:34,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3673 Valid, 10300 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1640 Invalid, 1 Unknown, 0 Unchecked, 29.4s Time] [2022-11-23 15:02:34,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37996 states. [2022-11-23 15:02:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37996 to 37994. [2022-11-23 15:02:36,183 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) [2022-11-23 15:02:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37994 states to 37994 states and 54214 transitions. [2022-11-23 15:02:36,313 INFO L78 Accepts]: Start accepts. Automaton has 37994 states and 54214 transitions. Word has length 1197 [2022-11-23 15:02:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:02:36,314 INFO L495 AbstractCegarLoop]: Abstraction has 37994 states and 54214 transitions. [2022-11-23 15:02:36,314 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) [2022-11-23 15:02:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 37994 states and 54214 transitions. [2022-11-23 15:02:36,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2022-11-23 15:02:36,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:02:36,333 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:02:36,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:02:36,333 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:02:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:02:36,334 INFO L85 PathProgramCache]: Analyzing trace with hash 57266727, now seen corresponding path program 1 times [2022-11-23 15:02:36,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:02:36,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143340976] [2022-11-23 15:02:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:02:36,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:02:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:02:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 48918 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48910 trivial. 0 not checked. [2022-11-23 15:02:38,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:02:38,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143340976] [2022-11-23 15:02:38,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143340976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:02:38,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:02:38,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:02:38,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568583482] [2022-11-23 15:02:38,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:02:38,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:02:38,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:02:38,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:02:38,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:02:38,265 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) [2022-11-23 15:02:42,148 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 [] [2022-11-23 15:02:48,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:50,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:02:56,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:04,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:09,991 INFO L93 Difference]: Finished difference Result 38000 states and 54219 transitions. [2022-11-23 15:03:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:03:09,992 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 1201 [2022-11-23 15:03:09,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:10,117 INFO L225 Difference]: With dead ends: 38000 [2022-11-23 15:03:10,117 INFO L226 Difference]: Without dead ends: 37998 [2022-11-23 15:03:10,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:03:10,130 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3687 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:10,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 10257 Invalid, 1628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1625 Invalid, 2 Unknown, 0 Unchecked, 29.5s Time] [2022-11-23 15:03:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37998 states. [2022-11-23 15:03:12,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37998 to 37998. [2022-11-23 15:03:12,431 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) [2022-11-23 15:03:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37998 states to 37998 states and 54217 transitions. [2022-11-23 15:03:12,546 INFO L78 Accepts]: Start accepts. Automaton has 37998 states and 54217 transitions. Word has length 1201 [2022-11-23 15:03:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:12,547 INFO L495 AbstractCegarLoop]: Abstraction has 37998 states and 54217 transitions. [2022-11-23 15:03:12,548 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) [2022-11-23 15:03:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 37998 states and 54217 transitions. [2022-11-23 15:03:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2022-11-23 15:03:12,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:12,566 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 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] [2022-11-23 15:03:12,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:03:12,566 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:03:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2005783043, now seen corresponding path program 1 times [2022-11-23 15:03:12,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:12,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411122106] [2022-11-23 15:03:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:12,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 48937 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48927 trivial. 0 not checked. [2022-11-23 15:03:14,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:14,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411122106] [2022-11-23 15:03:14,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411122106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:14,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:14,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320231134] [2022-11-23 15:03:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:14,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:03:14,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:14,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:03:14,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:03:14,503 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) [2022-11-23 15:03:22,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:23,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:27,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:33,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:39,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:41,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:03:48,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:48,073 INFO L93 Difference]: Finished difference Result 38004 states and 54222 transitions. [2022-11-23 15:03:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:03:48,074 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 1207 [2022-11-23 15:03:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:48,217 INFO L225 Difference]: With dead ends: 38004 [2022-11-23 15:03:48,217 INFO L226 Difference]: Without dead ends: 38002 [2022-11-23 15:03:48,229 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 [2022-11-23 15:03:48,230 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 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, 31.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:48,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 31.1s Time] [2022-11-23 15:03:48,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38002 states. [2022-11-23 15:03:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38002 to 38002. [2022-11-23 15:03:50,717 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) [2022-11-23 15:03:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38002 states to 38002 states and 54220 transitions. [2022-11-23 15:03:50,833 INFO L78 Accepts]: Start accepts. Automaton has 38002 states and 54220 transitions. Word has length 1207 [2022-11-23 15:03:50,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:50,834 INFO L495 AbstractCegarLoop]: Abstraction has 38002 states and 54220 transitions. [2022-11-23 15:03:50,834 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) [2022-11-23 15:03:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 38002 states and 54220 transitions. [2022-11-23 15:03:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2022-11-23 15:03:50,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:50,855 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] [2022-11-23 15:03:50,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:03:50,855 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:03:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash -183683513, now seen corresponding path program 1 times [2022-11-23 15:03:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:50,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210108718] [2022-11-23 15:03:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:50,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 48958 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48946 trivial. 0 not checked. [2022-11-23 15:03:53,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210108718] [2022-11-23 15:03:53,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210108718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:53,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:53,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751887397] [2022-11-23 15:03:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:53,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:03:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:03:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:03:53,164 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) [2022-11-23 15:03:59,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:04,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:05,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:06,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:08,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:09,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:10,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:11,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:14,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:16,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:19,868 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 [] [2022-11-23 15:04:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:26,777 INFO L93 Difference]: Finished difference Result 38008 states and 54225 transitions. [2022-11-23 15:04:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:26,778 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 [2022-11-23 15:04:26,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:26,913 INFO L225 Difference]: With dead ends: 38008 [2022-11-23 15:04:26,913 INFO L226 Difference]: Without dead ends: 38006 [2022-11-23 15:04:26,931 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 [2022-11-23 15:04:26,932 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s 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, 30.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:26,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 30.8s Time] [2022-11-23 15:04:26,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38006 states. [2022-11-23 15:04:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38006 to 38006. [2022-11-23 15:04:29,714 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) [2022-11-23 15:04:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38006 states to 38006 states and 54223 transitions. [2022-11-23 15:04:29,837 INFO L78 Accepts]: Start accepts. Automaton has 38006 states and 54223 transitions. Word has length 1211 [2022-11-23 15:04:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:29,838 INFO L495 AbstractCegarLoop]: Abstraction has 38006 states and 54223 transitions. [2022-11-23 15:04:29,838 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) [2022-11-23 15:04:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 38006 states and 54223 transitions. [2022-11-23 15:04:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2022-11-23 15:04:29,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:29,859 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 8, 7, 7, 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] [2022-11-23 15:04:29,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 15:04:29,859 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)] === [2022-11-23 15:04:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2011793266, now seen corresponding path program 1 times [2022-11-23 15:04:29,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:29,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811791310] [2022-11-23 15:04:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 48984 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48970 trivial. 0 not checked. [2022-11-23 15:04:31,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:31,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811791310] [2022-11-23 15:04:31,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811791310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:31,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:31,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784265964] [2022-11-23 15:04:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:31,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:04:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:04:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:04:31,843 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) [2022-11-23 15:04:40,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:43,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:48,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:49,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:52,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:53,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:56,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:04:58,522 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 [] [2022-11-23 15:05:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:04,858 INFO L93 Difference]: Finished difference Result 38012 states and 54228 transitions. [2022-11-23 15:05:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:05:04,859 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 1216 [2022-11-23 15:05:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:05,034 INFO L225 Difference]: With dead ends: 38012 [2022-11-23 15:05:05,034 INFO L226 Difference]: Without dead ends: 38008 [2022-11-23 15:05:05,055 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 [2022-11-23 15:05:05,056 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 3690 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 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, 30.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:05,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3694 Valid, 10257 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1628 Invalid, 1 Unknown, 0 Unchecked, 30.3s Time] [2022-11-23 15:05:05,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38008 states. [2022-11-23 15:05:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38008 to 38008. [2022-11-23 15:05:08,097 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) [2022-11-23 15:05:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38008 states to 38008 states and 54224 transitions. [2022-11-23 15:05:08,214 INFO L78 Accepts]: Start accepts. Automaton has 38008 states and 54224 transitions. Word has length 1216 [2022-11-23 15:05:08,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:08,215 INFO L495 AbstractCegarLoop]: Abstraction has 38008 states and 54224 transitions. [2022-11-23 15:05:08,215 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) [2022-11-23 15:05:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 38008 states and 54224 transitions. [2022-11-23 15:05:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2022-11-23 15:05:08,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:08,238 INFO L195 NwaCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:08,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:05:08,238 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:05:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1668695250, now seen corresponding path program 1 times [2022-11-23 15:05:08,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:08,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760749308] [2022-11-23 15:05:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 49022 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 49006 trivial. 0 not checked. [2022-11-23 15:05:10,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:10,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760749308] [2022-11-23 15:05:10,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760749308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:10,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:10,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:05:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776501148] [2022-11-23 15:05:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:10,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:05:10,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:05:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:05:10,064 INFO L87 Difference]: Start difference. First operand 38008 states and 54224 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 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) [2022-11-23 15:05:19,602 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 [] [2022-11-23 15:05:25,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:28,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:35,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:37,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:44,103 INFO L93 Difference]: Finished difference Result 38008 states and 54224 transitions. [2022-11-23 15:05:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:05:44,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 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 1233 [2022-11-23 15:05:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:44,224 INFO L225 Difference]: With dead ends: 38008 [2022-11-23 15:05:44,224 INFO L226 Difference]: Without dead ends: 37832 [2022-11-23 15:05:44,238 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 [2022-11-23 15:05:44,239 INFO L413 NwaCegarLoop]: 3421 mSDtfsCounter, 3687 mSDsluCounter, 6833 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 10254 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:44,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3690 Valid, 10254 Invalid, 1625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1623 Invalid, 1 Unknown, 0 Unchecked, 31.2s Time] [2022-11-23 15:05:44,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37832 states. [2022-11-23 15:05:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37832 to 37832. [2022-11-23 15:05:47,116 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) [2022-11-23 15:05:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37832 states to 37832 states and 53913 transitions. [2022-11-23 15:05:47,236 INFO L78 Accepts]: Start accepts. Automaton has 37832 states and 53913 transitions. Word has length 1233 [2022-11-23 15:05:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:47,238 INFO L495 AbstractCegarLoop]: Abstraction has 37832 states and 53913 transitions. [2022-11-23 15:05:47,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 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) [2022-11-23 15:05:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 37832 states and 53913 transitions. [2022-11-23 15:05:47,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2022-11-23 15:05:47,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:47,265 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] [2022-11-23 15:05:47,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 15:05:47,265 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)] === [2022-11-23 15:05:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 759720082, now seen corresponding path program 1 times [2022-11-23 15:05:47,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:47,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000342780] [2022-11-23 15:05:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:47,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 49122 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 49110 trivial. 0 not checked. [2022-11-23 15:05:48,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:48,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000342780] [2022-11-23 15:05:48,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000342780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:48,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:48,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:05:48,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059957052] [2022-11-23 15:05:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:48,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:05:48,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:05:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:05:48,315 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) [2022-11-23 15:05:54,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:55,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:57,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:05:59,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:00,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:02,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:03,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:05,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:08,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:14,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:16,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:18,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:19,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:25,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:25,619 INFO L93 Difference]: Finished difference Result 91689 states and 130722 transitions. [2022-11-23 15:06:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:06:25,620 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 [2022-11-23 15:06:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:25,917 INFO L225 Difference]: With dead ends: 91689 [2022-11-23 15:06:25,917 INFO L226 Difference]: Without dead ends: 55372 [2022-11-23 15:06:26,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:26,041 INFO L413 NwaCegarLoop]: 5372 mSDtfsCounter, 3502 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 8728 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:26,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 8728 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1443 Invalid, 1 Unknown, 0 Unchecked, 32.2s Time] [2022-11-23 15:06:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55372 states. [2022-11-23 15:06:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55372 to 55359. [2022-11-23 15:06:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55359 states, 35466 states have (on average 1.3356454068685502) internal successors, (47370), 35894 states have internal predecessors, (47370), 15698 states have call successors, (15698), 4192 states have call predecessors, (15698), 4193 states have return successors, (15773), 15524 states have call predecessors, (15773), 15698 states have call successors, (15773) [2022-11-23 15:06:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55359 states to 55359 states and 78841 transitions. [2022-11-23 15:06:30,627 INFO L78 Accepts]: Start accepts. Automaton has 55359 states and 78841 transitions. Word has length 1222 [2022-11-23 15:06:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:30,629 INFO L495 AbstractCegarLoop]: Abstraction has 55359 states and 78841 transitions. [2022-11-23 15:06:30,629 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) [2022-11-23 15:06:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 55359 states and 78841 transitions. [2022-11-23 15:06:30,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2022-11-23 15:06:30,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:30,669 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] [2022-11-23 15:06:30,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 15:06:30,669 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:06:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:30,670 INFO L85 PathProgramCache]: Analyzing trace with hash -605405724, now seen corresponding path program 1 times [2022-11-23 15:06:30,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:30,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407925975] [2022-11-23 15:06:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 49127 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49120 trivial. 0 not checked. [2022-11-23 15:06:31,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:31,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407925975] [2022-11-23 15:06:31,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407925975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:31,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:31,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:06:31,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828109546] [2022-11-23 15:06:31,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:06:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:06:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:06:31,772 INFO L87 Difference]: Start difference. First operand 55359 states and 78841 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) [2022-11-23 15:06:37,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:39,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:41,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:43,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:46,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:51,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:57,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:06:59,907 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 [] [2022-11-23 15:07:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:10,934 INFO L93 Difference]: Finished difference Result 134053 states and 190974 transitions. [2022-11-23 15:07:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:07:10,935 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 [2022-11-23 15:07:10,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:11,331 INFO L225 Difference]: With dead ends: 134053 [2022-11-23 15:07:11,331 INFO L226 Difference]: Without dead ends: 80209 [2022-11-23 15:07:11,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:11,470 INFO L413 NwaCegarLoop]: 6352 mSDtfsCounter, 3477 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s 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, 32.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:11,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3480 Valid, 9707 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1612 Invalid, 1 Unknown, 0 Unchecked, 32.4s Time] [2022-11-23 15:07:11,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80209 states.