./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P --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 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:02:48,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:02:48,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:02:48,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:02:48,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:02:48,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:02:48,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:02:48,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:02:48,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:02:48,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:02:48,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:02:48,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:02:48,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:02:48,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:02:48,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:02:48,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:02:48,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:02:48,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:02:48,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:02:48,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:02:48,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:02:48,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:02:48,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:02:48,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:02:48,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:02:48,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:02:48,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:02:48,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:02:48,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:02:48,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:02:48,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:02:48,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:02:48,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:02:48,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:02:48,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:02:48,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:02:48,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:02:48,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:02:48,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:02:48,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:02:48,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:02:48,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:02:48,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:02:48,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:02:48,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:02:48,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:02:48,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:02:48,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:02:48,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:02:48,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:02:48,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:02:48,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:02:48,287 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:02:48,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:02:48,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:02:48,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:02:48,288 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:02:48,288 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:02:48,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:02:48,289 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:02:48,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:02:48,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:02:48,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:02:48,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:02:48,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:02:48,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:02:48,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:02:48,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:02:48,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:02:48,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:02:48,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:02:48,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:02:48,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:02:48,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:02:48,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:02:48,295 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:02:48,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:02:48,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:02:48,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:02:48,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:02:48,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 [2021-11-21 00:02:48,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:02:48,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:02:48,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:02:48,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:02:48,608 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:02:48,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-21 00:02:48,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/data/fb90e7a1c/c0abc7666d9444ef8a8b1f281d21c897/FLAG947ea6a32 [2021-11-21 00:02:49,802 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:02:49,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-21 00:02:49,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/data/fb90e7a1c/c0abc7666d9444ef8a8b1f281d21c897/FLAG947ea6a32 [2021-11-21 00:02:49,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/data/fb90e7a1c/c0abc7666d9444ef8a8b1f281d21c897 [2021-11-21 00:02:49,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:02:49,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:02:49,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:02:49,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:02:50,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:02:50,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:02:49" (1/1) ... [2021-11-21 00:02:50,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264c7964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:50, skipping insertion in model container [2021-11-21 00:02:50,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:02:49" (1/1) ... [2021-11-21 00:02:50,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:02:50,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:02:57,538 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-21 00:02:57,549 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-21 00:02:57,552 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-21 00:02:57,553 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-21 00:02:57,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:02:57,673 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:02:58,417 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-21 00:02:58,418 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-21 00:02:58,418 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-21 00:02:58,419 WARN L230 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_93a73d26-67f4-493d-8601-05824186ef5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-21 00:02:58,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:02:58,905 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:02:58,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58 WrapperNode [2021-11-21 00:02:58,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:02:58,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:02:58,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:02:58,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:02:58,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:59,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:59,668 INFO L137 Inliner]: procedures = 732, calls = 6977, calls flagged for inlining = 351, calls inlined = 332, statements flattened = 14608 [2021-11-21 00:02:59,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:02:59,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:02:59,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:02:59,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:02:59,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:59,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:59,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:59,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:03:00,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:03:00,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:03:00,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:03:00,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:03:00,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:03:00,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:03:00,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:03:00,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:03:00,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:03:00,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:03:00,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:03:00,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93a73d26-67f4-493d-8601-05824186ef5d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:03:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2021-11-21 00:03:00,579 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2021-11-21 00:03:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2021-11-21 00:03:00,579 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2021-11-21 00:03:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 00:03:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2021-11-21 00:03:00,580 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2021-11-21 00:03:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-21 00:03:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_airo_card [2021-11-21 00:03:00,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_airo_card [2021-11-21 00:03:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-21 00:03:00,580 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-21 00:03:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_crt [2021-11-21 00:03:00,581 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_crt [2021-11-21 00:03:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:03:00,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:03:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure wifi_setup [2021-11-21 00:03:00,581 INFO L138 BoogieDeclarations]: Found implementation of procedure wifi_setup [2021-11-21 00:03:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:03:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:03:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:03:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:03:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2021-11-21 00:03:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2021-11-21 00:03:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure age_mic_context [2021-11-21 00:03:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure age_mic_context [2021-11-21 00:03:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:03:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:03:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2021-11-21 00:03:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2021-11-21 00:03:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2021-11-21 00:03:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2021-11-21 00:03:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-21 00:03:00,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-21 00:03:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-21 00:03:00,584 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-21 00:03:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:03:00,584 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:03:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2021-11-21 00:03:00,585 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2021-11-21 00:03:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-11-21 00:03:00,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-11-21 00:03:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2021-11-21 00:03:00,585 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2021-11-21 00:03:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2021-11-21 00:03:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2021-11-21 00:03:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:03:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:03:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2021-11-21 00:03:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2021-11-21 00:03:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-21 00:03:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-21 00:03:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-21 00:03:00,587 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-21 00:03:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-21 00:03:00,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-21 00:03:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2021-11-21 00:03:00,587 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2021-11-21 00:03:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:03:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2021-11-21 00:03:00,588 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2021-11-21 00:03:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:03:00,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:03:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:03:00,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:03:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-21 00:03:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-21 00:03:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2021-11-21 00:03:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2021-11-21 00:03:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-21 00:03:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-21 00:03:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:03:00,589 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:03:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:03:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:03:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2021-11-21 00:03:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2021-11-21 00:03:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2021-11-21 00:03:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2021-11-21 00:03:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:03:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:03:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2021-11-21 00:03:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2021-11-21 00:03:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2021-11-21 00:03:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2021-11-21 00:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-21 00:03:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-21 00:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2021-11-21 00:03:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2021-11-21 00:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-21 00:03:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-21 00:03:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 00:03:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 00:03:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:03:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:03:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2021-11-21 00:03:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2021-11-21 00:03:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-21 00:03:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-21 00:03:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2021-11-21 00:03:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2021-11-21 00:03:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:03:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-21 00:03:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-21 00:03:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2021-11-21 00:03:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2021-11-21 00:03:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:03:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:03:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-21 00:03:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-21 00:03:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:03:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:03:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2021-11-21 00:03:00,612 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2021-11-21 00:03:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:03:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:03:00,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:03:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:03:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2021-11-21 00:03:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2021-11-21 00:03:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2021-11-21 00:03:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2021-11-21 00:03:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2021-11-21 00:03:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2021-11-21 00:03:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:03:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:03:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:03:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:03:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2021-11-21 00:03:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2021-11-21 00:03:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-21 00:03:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-21 00:03:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-21 00:03:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-21 00:03:00,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:03:00,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:03:00,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2021-11-21 00:03:00,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2021-11-21 00:03:00,615 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-21 00:03:00,615 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-21 00:03:00,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:03:00,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:03:00,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:03:00,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:03:00,616 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-21 00:03:00,616 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-21 00:03:00,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:03:00,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 00:03:00,616 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2021-11-21 00:03:00,617 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2021-11-21 00:03:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2021-11-21 00:03:00,617 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2021-11-21 00:03:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:03:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:03:00,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:03:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:03:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:03:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:03:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:03:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-21 00:03:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-21 00:03:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2021-11-21 00:03:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2021-11-21 00:03:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:03:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:03:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:03:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:03:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:03:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:03:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2021-11-21 00:03:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2021-11-21 00:03:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:03:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2021-11-21 00:03:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2021-11-21 00:03:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-21 00:03:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-21 00:03:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:03:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:03:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-21 00:03:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-21 00:03:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2021-11-21 00:03:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2021-11-21 00:03:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-21 00:03:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-21 00:03:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 00:03:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 00:03:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2021-11-21 00:03:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2021-11-21 00:03:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:03:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:03:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2021-11-21 00:03:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2021-11-21 00:03:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:03:00,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:03:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:03:00,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:03:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2021-11-21 00:03:00,623 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2021-11-21 00:03:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2021-11-21 00:03:00,624 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2021-11-21 00:03:00,624 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:03:00,624 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:03:00,624 INFO L130 BoogieDeclarations]: Found specification of procedure freezing [2021-11-21 00:03:00,624 INFO L138 BoogieDeclarations]: Found implementation of procedure freezing [2021-11-21 00:03:00,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:03:00,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:03:00,624 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2021-11-21 00:03:00,625 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2021-11-21 00:03:00,625 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-21 00:03:00,625 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-21 00:03:00,625 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-21 00:03:00,625 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-21 00:03:00,625 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 00:03:00,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 00:03:00,626 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2021-11-21 00:03:00,626 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2021-11-21 00:03:00,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-21 00:03:00,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-21 00:03:00,626 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:03:00,626 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:03:00,626 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-21 00:03:00,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-21 00:03:00,627 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2021-11-21 00:03:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2021-11-21 00:03:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-21 00:03:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-21 00:03:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:03:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:03:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:03:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:03:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-21 00:03:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-21 00:03:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-21 00:03:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-21 00:03:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:03:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:03:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 00:03:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 00:03:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2021-11-21 00:03:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2021-11-21 00:03:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2021-11-21 00:03:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2021-11-21 00:03:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2021-11-21 00:03:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2021-11-21 00:03:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2021-11-21 00:03:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2021-11-21 00:03:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-21 00:03:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-21 00:03:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2021-11-21 00:03:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2021-11-21 00:03:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:03:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:03:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2021-11-21 00:03:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2021-11-21 00:03:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:03:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:03:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-21 00:03:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-21 00:03:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2021-11-21 00:03:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2021-11-21 00:03:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-21 00:03:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-21 00:03:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2021-11-21 00:03:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2021-11-21 00:03:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:03:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:03:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 00:03:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 00:03:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:03:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:03:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:03:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2021-11-21 00:03:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2021-11-21 00:03:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-21 00:03:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-21 00:03:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:03:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-21 00:03:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-21 00:03:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2021-11-21 00:03:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2021-11-21 00:03:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2021-11-21 00:03:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2021-11-21 00:03:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:03:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:03:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2021-11-21 00:03:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2021-11-21 00:03:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 00:03:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 00:03:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:03:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-21 00:03:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-21 00:03:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2021-11-21 00:03:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2021-11-21 00:03:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2021-11-21 00:03:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2021-11-21 00:03:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 00:03:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 00:03:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-21 00:03:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-21 00:03:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2021-11-21 00:03:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2021-11-21 00:03:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-21 00:03:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-21 00:03:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:03:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:03:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2021-11-21 00:03:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2021-11-21 00:03:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2021-11-21 00:03:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2021-11-21 00:03:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:03:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:03:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-21 00:03:00,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-21 00:03:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2021-11-21 00:03:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2021-11-21 00:03:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2021-11-21 00:03:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2021-11-21 00:03:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-21 00:03:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-21 00:03:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2021-11-21 00:03:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2021-11-21 00:03:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2021-11-21 00:03:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2021-11-21 00:03:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:03:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:03:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:03:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:03:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2021-11-21 00:03:00,656 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2021-11-21 00:03:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2021-11-21 00:03:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2021-11-21 00:03:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2021-11-21 00:03:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2021-11-21 00:03:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:03:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:03:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-21 00:03:00,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-21 00:03:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:03:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:03:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-21 00:03:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2021-11-21 00:03:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2021-11-21 00:03:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2021-11-21 00:03:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:03:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2021-11-21 00:03:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2021-11-21 00:03:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2021-11-21 00:03:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2021-11-21 00:03:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-21 00:03:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-21 00:03:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 00:03:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 00:03:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:03:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:03:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2021-11-21 00:03:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2021-11-21 00:03:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-21 00:03:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-21 00:03:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2021-11-21 00:03:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2021-11-21 00:03:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:03:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:03:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-21 00:03:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-21 00:03:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2021-11-21 00:03:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2021-11-21 00:03:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-21 00:03:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-21 00:03:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-21 00:03:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-21 00:03:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:03:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:03:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2021-11-21 00:03:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2021-11-21 00:03:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2021-11-21 00:03:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2021-11-21 00:03:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:03:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:03:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2021-11-21 00:03:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2021-11-21 00:03:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2021-11-21 00:03:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2021-11-21 00:03:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2021-11-21 00:03:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2021-11-21 00:03:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-21 00:03:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-21 00:03:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2021-11-21 00:03:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2021-11-21 00:03:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:03:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-21 00:03:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-21 00:03:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-21 00:03:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-21 00:03:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2021-11-21 00:03:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2021-11-21 00:03:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:03:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:03:00,681 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2021-11-21 00:03:00,681 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2021-11-21 00:03:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-21 00:03:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-21 00:03:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2021-11-21 00:03:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2021-11-21 00:03:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2021-11-21 00:03:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2021-11-21 00:03:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2021-11-21 00:03:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2021-11-21 00:03:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2021-11-21 00:03:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2021-11-21 00:03:02,372 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:03:02,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:03:02,799 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:03:53,102 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:03:53,466 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:03:57,251 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:03:57,251 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 00:03:57,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:57 BoogieIcfgContainer [2021-11-21 00:03:57,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:03:57,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:03:57,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:03:57,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:03:57,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:02:49" (1/3) ... [2021-11-21 00:03:57,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd7b0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:57, skipping insertion in model container [2021-11-21 00:03:57,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (2/3) ... [2021-11-21 00:03:57,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd7b0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:57, skipping insertion in model container [2021-11-21 00:03:57,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:57" (3/3) ... [2021-11-21 00:03:57,270 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-21 00:03:57,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:03:57,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 00:03:57,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:03:57,375 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:03:57,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 00:03:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) [2021-11-21 00:03:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2021-11-21 00:03:57,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:57,547 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:03:57,552 INFO L402 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)] === [2021-11-21 00:03:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1368345799, now seen corresponding path program 1 times [2021-11-21 00:03:57,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:03:57,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751603214] [2021-11-21 00:03:57,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:57,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:03:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-21 00:03:58,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:03:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751603214] [2021-11-21 00:03:58,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751603214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:03:58,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:03:58,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:03:58,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351853875] [2021-11-21 00:03:58,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:03:58,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:03:58,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:03:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:03:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:03:58,982 INFO L87 Difference]: Start difference. First operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-21 00:04:02,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:05,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:08,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:11,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:14,471 INFO L93 Difference]: Finished difference Result 11232 states and 17156 transitions. [2021-11-21 00:04:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:04:14,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 615 [2021-11-21 00:04:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:14,613 INFO L225 Difference]: With dead ends: 11232 [2021-11-21 00:04:14,613 INFO L226 Difference]: Without dead ends: 7394 [2021-11-21 00:04:14,675 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:04:14,682 INFO L933 BasicCegarLoop]: 6526 mSDtfsCounter, 5265 mSDsluCounter, 5814 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:14,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 11744 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1271 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2021-11-21 00:04:14,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7394 states. [2021-11-21 00:04:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7394 to 7387. [2021-11-21 00:04:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 4400 states have (on average 1.336818181818182) internal successors, (5882), 4629 states have internal predecessors, (5882), 2608 states have call successors, (2608), 377 states have call predecessors, (2608), 376 states have return successors, (2614), 2508 states have call predecessors, (2614), 2604 states have call successors, (2614) [2021-11-21 00:04:15,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 11104 transitions. [2021-11-21 00:04:15,450 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 11104 transitions. Word has length 615 [2021-11-21 00:04:15,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:15,457 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 11104 transitions. [2021-11-21 00:04:15,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-21 00:04:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 11104 transitions. [2021-11-21 00:04:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-11-21 00:04:15,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:15,488 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:15,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:04:15,489 INFO L402 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)] === [2021-11-21 00:04:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1762532157, now seen corresponding path program 1 times [2021-11-21 00:04:15,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:04:15,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031575817] [2021-11-21 00:04:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:15,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:04:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-21 00:04:16,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:04:16,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031575817] [2021-11-21 00:04:16,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031575817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:16,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:16,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:04:16,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258111754] [2021-11-21 00:04:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:16,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:04:16,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:04:16,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:04:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:16,270 INFO L87 Difference]: Start difference. First operand 7387 states and 11104 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-21 00:04:19,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:22,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:27,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:31,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:33,521 INFO L93 Difference]: Finished difference Result 21591 states and 32447 transitions. [2021-11-21 00:04:33,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:04:33,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 624 [2021-11-21 00:04:33,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:33,688 INFO L225 Difference]: With dead ends: 21591 [2021-11-21 00:04:33,689 INFO L226 Difference]: Without dead ends: 14323 [2021-11-21 00:04:33,752 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:04:33,753 INFO L933 BasicCegarLoop]: 6542 mSDtfsCounter, 5260 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5265 SdHoareTripleChecker+Valid, 11801 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:33,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5265 Valid, 11801 Invalid, 1288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1279 Invalid, 3 Unknown, 0 Unchecked, 16.6s Time] [2021-11-21 00:04:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14323 states. [2021-11-21 00:04:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14323 to 14282. [2021-11-21 00:04:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14282 states, 8533 states have (on average 1.3384507207312786) internal successors, (11421), 8982 states have internal predecessors, (11421), 5009 states have call successors, (5009), 738 states have call predecessors, (5009), 737 states have return successors, (5032), 4809 states have call predecessors, (5032), 5005 states have call successors, (5032) [2021-11-21 00:04:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14282 states to 14282 states and 21462 transitions. [2021-11-21 00:04:34,718 INFO L78 Accepts]: Start accepts. Automaton has 14282 states and 21462 transitions. Word has length 624 [2021-11-21 00:04:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:34,720 INFO L470 AbstractCegarLoop]: Abstraction has 14282 states and 21462 transitions. [2021-11-21 00:04:34,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-21 00:04:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 14282 states and 21462 transitions. [2021-11-21 00:04:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2021-11-21 00:04:34,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:34,754 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:34,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:04:34,754 INFO L402 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)] === [2021-11-21 00:04:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash 908074971, now seen corresponding path program 1 times [2021-11-21 00:04:34,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:04:34,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103415258] [2021-11-21 00:04:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:34,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:04:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13812 trivial. 0 not checked. [2021-11-21 00:04:35,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:04:35,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103415258] [2021-11-21 00:04:35,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103415258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:35,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:35,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:04:35,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265435884] [2021-11-21 00:04:35,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:35,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:04:35,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:04:35,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:04:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:35,562 INFO L87 Difference]: Start difference. First operand 14282 states and 21462 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-21 00:04:38,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:41,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:46,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:49,607 INFO L93 Difference]: Finished difference Result 40824 states and 61369 transitions. [2021-11-21 00:04:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:04:49,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 642 [2021-11-21 00:04:49,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:49,842 INFO L225 Difference]: With dead ends: 40824 [2021-11-21 00:04:49,843 INFO L226 Difference]: Without dead ends: 26661 [2021-11-21 00:04:49,956 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:04:49,960 INFO L933 BasicCegarLoop]: 6624 mSDtfsCounter, 4826 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 11892 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:49,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 11892 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1290 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2021-11-21 00:04:50,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26661 states. [2021-11-21 00:04:52,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26661 to 26610. [2021-11-21 00:04:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26610 states, 15903 states have (on average 1.3391812865497077) internal successors, (21297), 16745 states have internal predecessors, (21297), 9297 states have call successors, (9297), 1408 states have call predecessors, (9297), 1407 states have return successors, (9420), 8888 states have call predecessors, (9420), 9293 states have call successors, (9420) [2021-11-21 00:04:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26610 states to 26610 states and 40014 transitions. [2021-11-21 00:04:52,584 INFO L78 Accepts]: Start accepts. Automaton has 26610 states and 40014 transitions. Word has length 642 [2021-11-21 00:04:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:52,587 INFO L470 AbstractCegarLoop]: Abstraction has 26610 states and 40014 transitions. [2021-11-21 00:04:52,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-21 00:04:52,587 INFO L276 IsEmpty]: Start isEmpty. Operand 26610 states and 40014 transitions. [2021-11-21 00:04:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2021-11-21 00:04:52,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:52,632 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 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] [2021-11-21 00:04:52,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:04:52,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 00:04:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash -581124741, now seen corresponding path program 1 times [2021-11-21 00:04:52,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:04:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352267324] [2021-11-21 00:04:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:52,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:04:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 14135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-21 00:04:54,234 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:04:54,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352267324] [2021-11-21 00:04:54,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352267324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:54,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:54,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:04:54,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387675679] [2021-11-21 00:04:54,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:54,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:04:54,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:04:54,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:04:54,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:04:54,238 INFO L87 Difference]: Start difference. First operand 26610 states and 40014 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-21 00:04:58,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:01,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:07,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:11,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:11,855 INFO L93 Difference]: Finished difference Result 27592 states and 41310 transitions. [2021-11-21 00:05:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:05:11,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 694 [2021-11-21 00:05:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:12,049 INFO L225 Difference]: With dead ends: 27592 [2021-11-21 00:05:12,049 INFO L226 Difference]: Without dead ends: 27590 [2021-11-21 00:05:12,073 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:12,078 INFO L933 BasicCegarLoop]: 5528 mSDtfsCounter, 5381 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 17839 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:12,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 17839 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2021-11-21 00:05:12,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27590 states. [2021-11-21 00:05:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27590 to 27578. [2021-11-21 00:05:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27578 states, 16461 states have (on average 1.3361885669157403) internal successors, (21995), 17344 states have internal predecessors, (21995), 9583 states have call successors, (9583), 1528 states have call predecessors, (9583), 1531 states have return successors, (9720), 9171 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-21 00:05:15,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27578 states to 27578 states and 41298 transitions. [2021-11-21 00:05:15,023 INFO L78 Accepts]: Start accepts. Automaton has 27578 states and 41298 transitions. Word has length 694 [2021-11-21 00:05:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:15,024 INFO L470 AbstractCegarLoop]: Abstraction has 27578 states and 41298 transitions. [2021-11-21 00:05:15,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-21 00:05:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 27578 states and 41298 transitions. [2021-11-21 00:05:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2021-11-21 00:05:15,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:15,062 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:15,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:05:15,062 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 00:05:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash -349297406, now seen corresponding path program 1 times [2021-11-21 00:05:15,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:15,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389564516] [2021-11-21 00:05:15,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:15,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14137 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-21 00:05:16,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:16,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389564516] [2021-11-21 00:05:16,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389564516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:16,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:16,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:05:16,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317440940] [2021-11-21 00:05:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:16,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:05:16,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:05:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:16,397 INFO L87 Difference]: Start difference. First operand 27578 states and 41298 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-21 00:05:21,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:24,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:29,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:35,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:35,011 INFO L93 Difference]: Finished difference Result 27589 states and 41306 transitions. [2021-11-21 00:05:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:05:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 699 [2021-11-21 00:05:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:35,186 INFO L225 Difference]: With dead ends: 27589 [2021-11-21 00:05:35,187 INFO L226 Difference]: Without dead ends: 27587 [2021-11-21 00:05:35,220 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:35,224 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:35,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-11-21 00:05:35,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27587 states. [2021-11-21 00:05:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27587 to 27582. [2021-11-21 00:05:37,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27582 states, 16464 states have (on average 1.3361273080660836) internal successors, (21998), 17347 states have internal predecessors, (21998), 9583 states have call successors, (9583), 1529 states have call predecessors, (9583), 1532 states have return successors, (9720), 9171 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-21 00:05:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27582 states to 27582 states and 41301 transitions. [2021-11-21 00:05:37,603 INFO L78 Accepts]: Start accepts. Automaton has 27582 states and 41301 transitions. Word has length 699 [2021-11-21 00:05:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:37,604 INFO L470 AbstractCegarLoop]: Abstraction has 27582 states and 41301 transitions. [2021-11-21 00:05:37,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-21 00:05:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27582 states and 41301 transitions. [2021-11-21 00:05:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2021-11-21 00:05:37,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:37,868 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:37,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:05:37,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 00:05:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2120191589, now seen corresponding path program 1 times [2021-11-21 00:05:37,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:37,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636180949] [2021-11-21 00:05:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:37,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14143 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14139 trivial. 0 not checked. [2021-11-21 00:05:39,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:39,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636180949] [2021-11-21 00:05:39,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636180949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:39,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:39,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:05:39,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693164047] [2021-11-21 00:05:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:39,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:05:39,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:39,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:05:39,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:39,309 INFO L87 Difference]: Start difference. First operand 27582 states and 41301 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-21 00:05:43,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:46,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:52,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:05:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:57,583 INFO L93 Difference]: Finished difference Result 27593 states and 41309 transitions. [2021-11-21 00:05:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:05:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 704 [2021-11-21 00:05:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:57,816 INFO L225 Difference]: With dead ends: 27593 [2021-11-21 00:05:57,817 INFO L226 Difference]: Without dead ends: 27591 [2021-11-21 00:05:57,830 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:57,831 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5395 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:57,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5395 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-11-21 00:05:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27591 states. [2021-11-21 00:05:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27591 to 27586. [2021-11-21 00:05:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27586 states, 16467 states have (on average 1.3360660715370134) internal successors, (22001), 17350 states have internal predecessors, (22001), 9583 states have call successors, (9583), 1530 states have call predecessors, (9583), 1533 states have return successors, (9720), 9171 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-21 00:05:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27586 states to 27586 states and 41304 transitions. [2021-11-21 00:05:59,281 INFO L78 Accepts]: Start accepts. Automaton has 27586 states and 41304 transitions. Word has length 704 [2021-11-21 00:05:59,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:59,283 INFO L470 AbstractCegarLoop]: Abstraction has 27586 states and 41304 transitions. [2021-11-21 00:05:59,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-21 00:05:59,284 INFO L276 IsEmpty]: Start isEmpty. Operand 27586 states and 41304 transitions. [2021-11-21 00:05:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2021-11-21 00:05:59,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:59,321 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 4, 3, 3, 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] [2021-11-21 00:05:59,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:05:59,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 00:05:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 938829732, now seen corresponding path program 1 times [2021-11-21 00:05:59,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:59,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503941804] [2021-11-21 00:05:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:59,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14166 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14160 trivial. 0 not checked. [2021-11-21 00:06:00,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503941804] [2021-11-21 00:06:00,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503941804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:00,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:00,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:00,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42588534] [2021-11-21 00:06:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:00,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:00,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:00,391 INFO L87 Difference]: Start difference. First operand 27586 states and 41304 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-21 00:06:04,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:08,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:14,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:24,125 INFO L93 Difference]: Finished difference Result 54165 states and 82005 transitions. [2021-11-21 00:06:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:24,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 718 [2021-11-21 00:06:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:24,549 INFO L225 Difference]: With dead ends: 54165 [2021-11-21 00:06:24,549 INFO L226 Difference]: Without dead ends: 54163 [2021-11-21 00:06:24,574 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:06:24,575 INFO L933 BasicCegarLoop]: 7501 mSDtfsCounter, 5613 mSDsluCounter, 22118 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 27548 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:24,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5621 Valid, 27548 Invalid, 2828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2822 Invalid, 3 Unknown, 0 Unchecked, 22.1s Time] [2021-11-21 00:06:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54163 states. [2021-11-21 00:06:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54163 to 54139. [2021-11-21 00:06:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54139 states, 32371 states have (on average 1.3382966235210527) internal successors, (43322), 34127 states have internal predecessors, (43322), 18765 states have call successors, (18765), 3004 states have call predecessors, (18765), 3000 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:06:27,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54139 states to 54139 states and 81981 transitions. [2021-11-21 00:06:27,157 INFO L78 Accepts]: Start accepts. Automaton has 54139 states and 81981 transitions. Word has length 718 [2021-11-21 00:06:27,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:27,158 INFO L470 AbstractCegarLoop]: Abstraction has 54139 states and 81981 transitions. [2021-11-21 00:06:27,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-21 00:06:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 54139 states and 81981 transitions. [2021-11-21 00:06:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2021-11-21 00:06:27,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:27,205 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 5, 4, 4, 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] [2021-11-21 00:06:27,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:06:27,205 INFO L402 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)] === [2021-11-21 00:06:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:27,206 INFO L85 PathProgramCache]: Analyzing trace with hash -843205703, now seen corresponding path program 1 times [2021-11-21 00:06:27,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:27,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744688686] [2021-11-21 00:06:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:27,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14180 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14172 trivial. 0 not checked. [2021-11-21 00:06:28,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744688686] [2021-11-21 00:06:28,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744688686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:28,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:28,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:28,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122510448] [2021-11-21 00:06:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:28,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:28,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:28,415 INFO L87 Difference]: Start difference. First operand 54139 states and 81981 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-21 00:06:32,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:35,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:41,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:44,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:45,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:48,328 INFO L93 Difference]: Finished difference Result 54154 states and 81993 transitions. [2021-11-21 00:06:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:06:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 723 [2021-11-21 00:06:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:48,902 INFO L225 Difference]: With dead ends: 54154 [2021-11-21 00:06:48,902 INFO L226 Difference]: Without dead ends: 54152 [2021-11-21 00:06:48,930 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:06:48,930 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:48,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2021-11-21 00:06:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54152 states. [2021-11-21 00:06:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54152 to 54147. [2021-11-21 00:06:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54147 states, 32377 states have (on average 1.3382339314945795) internal successors, (43328), 34133 states have internal predecessors, (43328), 18765 states have call successors, (18765), 3006 states have call predecessors, (18765), 3002 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:06:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54147 states to 54147 states and 81987 transitions. [2021-11-21 00:06:51,889 INFO L78 Accepts]: Start accepts. Automaton has 54147 states and 81987 transitions. Word has length 723 [2021-11-21 00:06:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:51,890 INFO L470 AbstractCegarLoop]: Abstraction has 54147 states and 81987 transitions. [2021-11-21 00:06:51,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2021-11-21 00:06:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 54147 states and 81987 transitions. [2021-11-21 00:06:51,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2021-11-21 00:06:51,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:51,914 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 6, 5, 5, 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] [2021-11-21 00:06:51,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:06:51,915 INFO L402 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)] === [2021-11-21 00:06:51,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:51,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1730135102, now seen corresponding path program 1 times [2021-11-21 00:06:51,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:51,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820357114] [2021-11-21 00:06:51,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:51,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14185 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14175 trivial. 0 not checked. [2021-11-21 00:06:52,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:52,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820357114] [2021-11-21 00:06:52,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820357114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:52,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:52,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:52,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341761674] [2021-11-21 00:06:52,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:52,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:52,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:52,911 INFO L87 Difference]: Start difference. First operand 54147 states and 81987 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-21 00:06:56,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:00,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:05,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:11,337 INFO L93 Difference]: Finished difference Result 54162 states and 81999 transitions. [2021-11-21 00:07:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:07:11,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 719 [2021-11-21 00:07:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:11,573 INFO L225 Difference]: With dead ends: 54162 [2021-11-21 00:07:11,573 INFO L226 Difference]: Without dead ends: 54160 [2021-11-21 00:07:11,596 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:07:11,597 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:11,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2021-11-21 00:07:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54160 states. [2021-11-21 00:07:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54160 to 54155. [2021-11-21 00:07:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54155 states, 32383 states have (on average 1.3381712626995645) internal successors, (43334), 34139 states have internal predecessors, (43334), 18765 states have call successors, (18765), 3008 states have call predecessors, (18765), 3004 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:07:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54155 states to 54155 states and 81993 transitions. [2021-11-21 00:07:14,478 INFO L78 Accepts]: Start accepts. Automaton has 54155 states and 81993 transitions. Word has length 719 [2021-11-21 00:07:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:14,479 INFO L470 AbstractCegarLoop]: Abstraction has 54155 states and 81993 transitions. [2021-11-21 00:07:14,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-21 00:07:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 54155 states and 81993 transitions. [2021-11-21 00:07:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-11-21 00:07:14,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:14,503 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 7, 6, 6, 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] [2021-11-21 00:07:14,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:07:14,503 INFO L402 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)] === [2021-11-21 00:07:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1934269037, now seen corresponding path program 1 times [2021-11-21 00:07:14,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401060771] [2021-11-21 00:07:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:14,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 14219 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14207 trivial. 0 not checked. [2021-11-21 00:07:15,646 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:15,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401060771] [2021-11-21 00:07:15,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401060771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:15,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:15,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:07:15,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026972569] [2021-11-21 00:07:15,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:15,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:07:15,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:07:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:07:15,649 INFO L87 Difference]: Start difference. First operand 54155 states and 81993 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-21 00:07:19,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:22,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:28,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:34,736 INFO L93 Difference]: Finished difference Result 54170 states and 82005 transitions. [2021-11-21 00:07:34,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:07:34,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 732 [2021-11-21 00:07:34,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:34,982 INFO L225 Difference]: With dead ends: 54170 [2021-11-21 00:07:34,982 INFO L226 Difference]: Without dead ends: 54168 [2021-11-21 00:07:35,005 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:07:35,006 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:35,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-11-21 00:07:35,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54168 states. [2021-11-21 00:07:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54168 to 54163. [2021-11-21 00:07:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54163 states, 32389 states have (on average 1.3381086171230974) internal successors, (43340), 34145 states have internal predecessors, (43340), 18765 states have call successors, (18765), 3010 states have call predecessors, (18765), 3006 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:07:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54163 states to 54163 states and 81999 transitions. [2021-11-21 00:07:38,034 INFO L78 Accepts]: Start accepts. Automaton has 54163 states and 81999 transitions. Word has length 732 [2021-11-21 00:07:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:38,035 INFO L470 AbstractCegarLoop]: Abstraction has 54163 states and 81999 transitions. [2021-11-21 00:07:38,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-21 00:07:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 54163 states and 81999 transitions. [2021-11-21 00:07:38,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2021-11-21 00:07:38,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:38,070 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 7, 7, 7, 7, 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] [2021-11-21 00:07:38,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 00:07:38,071 INFO L402 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)] === [2021-11-21 00:07:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:38,071 INFO L85 PathProgramCache]: Analyzing trace with hash 652753698, now seen corresponding path program 1 times [2021-11-21 00:07:38,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:38,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402584070] [2021-11-21 00:07:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:38,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 14233 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14219 trivial. 0 not checked. [2021-11-21 00:07:39,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402584070] [2021-11-21 00:07:39,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402584070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:39,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:39,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:07:39,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794166209] [2021-11-21 00:07:39,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:39,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:07:39,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:07:39,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:07:39,157 INFO L87 Difference]: Start difference. First operand 54163 states and 81999 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-21 00:07:43,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:46,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:52,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:58,314 INFO L93 Difference]: Finished difference Result 54178 states and 82011 transitions. [2021-11-21 00:07:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:07:58,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 729 [2021-11-21 00:07:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:58,521 INFO L225 Difference]: With dead ends: 54178 [2021-11-21 00:07:58,521 INFO L226 Difference]: Without dead ends: 54176 [2021-11-21 00:07:58,546 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:07:58,546 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:58,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-11-21 00:07:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54176 states. [2021-11-21 00:08:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54176 to 54171. [2021-11-21 00:08:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54171 states, 32395 states have (on average 1.3380459947522765) internal successors, (43346), 34151 states have internal predecessors, (43346), 18765 states have call successors, (18765), 3012 states have call predecessors, (18765), 3008 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:08:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54171 states to 54171 states and 82005 transitions. [2021-11-21 00:08:01,509 INFO L78 Accepts]: Start accepts. Automaton has 54171 states and 82005 transitions. Word has length 729 [2021-11-21 00:08:01,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:01,510 INFO L470 AbstractCegarLoop]: Abstraction has 54171 states and 82005 transitions. [2021-11-21 00:08:01,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-21 00:08:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 54171 states and 82005 transitions. [2021-11-21 00:08:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2021-11-21 00:08:01,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:01,535 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 9, 8, 8, 8, 8, 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] [2021-11-21 00:08:01,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:08:01,535 INFO L402 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)] === [2021-11-21 00:08:01,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1363106041, now seen corresponding path program 1 times [2021-11-21 00:08:01,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:01,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604946557] [2021-11-21 00:08:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:01,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 14276 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14260 trivial. 0 not checked. [2021-11-21 00:08:02,630 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:02,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604946557] [2021-11-21 00:08:02,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604946557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:02,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:02,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:08:02,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021463409] [2021-11-21 00:08:02,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:02,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:08:02,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:02,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:08:02,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:02,633 INFO L87 Difference]: Start difference. First operand 54171 states and 82005 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-21 00:08:06,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:09,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:15,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:20,841 INFO L93 Difference]: Finished difference Result 54186 states and 82017 transitions. [2021-11-21 00:08:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:08:20,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 743 [2021-11-21 00:08:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:21,175 INFO L225 Difference]: With dead ends: 54186 [2021-11-21 00:08:21,175 INFO L226 Difference]: Without dead ends: 54184 [2021-11-21 00:08:21,193 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:08:21,194 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5388 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:21,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5388 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2021-11-21 00:08:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54184 states. [2021-11-21 00:08:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54184 to 54179. [2021-11-21 00:08:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54179 states, 32401 states have (on average 1.3379833955742106) internal successors, (43352), 34157 states have internal predecessors, (43352), 18765 states have call successors, (18765), 3014 states have call predecessors, (18765), 3010 states have return successors, (19894), 17914 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-21 00:08:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54179 states to 54179 states and 82011 transitions. [2021-11-21 00:08:24,148 INFO L78 Accepts]: Start accepts. Automaton has 54179 states and 82011 transitions. Word has length 743 [2021-11-21 00:08:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:24,149 INFO L470 AbstractCegarLoop]: Abstraction has 54179 states and 82011 transitions. [2021-11-21 00:08:24,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-21 00:08:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 54179 states and 82011 transitions. [2021-11-21 00:08:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2021-11-21 00:08:24,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:24,178 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 10, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:08:24,178 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-21 00:08:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1507754445, now seen corresponding path program 1 times [2021-11-21 00:08:24,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:24,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756533920] [2021-11-21 00:08:24,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:24,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14004 trivial. 0 not checked. [2021-11-21 00:08:25,046 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:25,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756533920] [2021-11-21 00:08:25,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756533920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:25,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:25,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:08:25,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744897704] [2021-11-21 00:08:25,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:25,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:08:25,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:08:25,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:25,050 INFO L87 Difference]: Start difference. First operand 54179 states and 82011 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-21 00:08:27,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:31,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:34,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:42,380 INFO L93 Difference]: Finished difference Result 110172 states and 166432 transitions. [2021-11-21 00:08:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:08:42,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 762 [2021-11-21 00:08:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:42,636 INFO L225 Difference]: With dead ends: 110172 [2021-11-21 00:08:42,636 INFO L226 Difference]: Without dead ends: 56112 [2021-11-21 00:08:42,820 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:08:42,821 INFO L933 BasicCegarLoop]: 6825 mSDtfsCounter, 4595 mSDsluCounter, 5840 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 12062 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:42,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4601 Valid, 12062 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1356 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2021-11-21 00:08:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56112 states. [2021-11-21 00:08:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56112 to 55925. [2021-11-21 00:08:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55925 states, 33566 states have (on average 1.3381099922540667) internal successors, (44915), 35335 states have internal predecessors, (44915), 19138 states have call successors, (19138), 3231 states have call predecessors, (19138), 3218 states have return successors, (20194), 18288 states have call predecessors, (20194), 19130 states have call successors, (20194) [2021-11-21 00:08:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55925 states to 55925 states and 84247 transitions. [2021-11-21 00:08:46,154 INFO L78 Accepts]: Start accepts. Automaton has 55925 states and 84247 transitions. Word has length 762 [2021-11-21 00:08:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:46,155 INFO L470 AbstractCegarLoop]: Abstraction has 55925 states and 84247 transitions. [2021-11-21 00:08:46,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-21 00:08:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 55925 states and 84247 transitions. [2021-11-21 00:08:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2021-11-21 00:08:46,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:46,182 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 10, 9, 9, 8, 8, 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] [2021-11-21 00:08:46,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 00:08:46,182 INFO L402 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)] === [2021-11-21 00:08:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash -341850556, now seen corresponding path program 1 times [2021-11-21 00:08:46,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:46,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768153895] [2021-11-21 00:08:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:46,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14310 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14292 trivial. 0 not checked. [2021-11-21 00:08:47,292 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:47,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768153895] [2021-11-21 00:08:47,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768153895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:47,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:47,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:08:47,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704852576] [2021-11-21 00:08:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:47,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:08:47,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:47,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:08:47,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:47,295 INFO L87 Difference]: Start difference. First operand 55925 states and 84247 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (88), 3 states have call predecessors, (88), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2021-11-21 00:08:50,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:55,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:58,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:09:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:07,094 INFO L93 Difference]: Finished difference Result 55940 states and 84259 transitions. [2021-11-21 00:09:07,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:09:07,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (88), 3 states have call predecessors, (88), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 748 [2021-11-21 00:09:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:07,333 INFO L225 Difference]: With dead ends: 55940 [2021-11-21 00:09:07,333 INFO L226 Difference]: Without dead ends: 55938 [2021-11-21 00:09:07,357 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:09:07,358 INFO L933 BasicCegarLoop]: 5523 mSDtfsCounter, 5375 mSDsluCounter, 13671 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5387 SdHoareTripleChecker+Valid, 17818 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:07,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5387 Valid, 17818 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2021 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-21 00:09:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55938 states. [2021-11-21 00:09:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55938 to 55933. [2021-11-21 00:09:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55933 states, 33572 states have (on average 1.3380495651137854) internal successors, (44921), 35341 states have internal predecessors, (44921), 19138 states have call successors, (19138), 3233 states have call predecessors, (19138), 3220 states have return successors, (20194), 18288 states have call predecessors, (20194), 19130 states have call successors, (20194) [2021-11-21 00:09:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55933 states to 55933 states and 84253 transitions. [2021-11-21 00:09:10,668 INFO L78 Accepts]: Start accepts. Automaton has 55933 states and 84253 transitions. Word has length 748 [2021-11-21 00:09:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:09:10,668 INFO L470 AbstractCegarLoop]: Abstraction has 55933 states and 84253 transitions. [2021-11-21 00:09:10,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (88), 3 states have call predecessors, (88), 1 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2021-11-21 00:09:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 55933 states and 84253 transitions. [2021-11-21 00:09:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2021-11-21 00:09:10,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:09:10,693 INFO L514 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 60, 60, 10, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:09:10,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 00:09:10,693 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 00:09:10,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:09:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1634753439, now seen corresponding path program 1 times [2021-11-21 00:09:10,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:09:10,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751282713] [2021-11-21 00:09:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:10,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:09:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14478 trivial. 0 not checked. [2021-11-21 00:09:11,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:09:11,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751282713] [2021-11-21 00:09:11,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751282713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:09:11,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:09:11,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:09:11,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458633730] [2021-11-21 00:09:11,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:09:11,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:09:11,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:09:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:09:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:09:11,206 INFO L87 Difference]: Start difference. First operand 55933 states and 84253 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2021-11-21 00:09:13,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:09:17,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:09:20,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:09:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:29,613 INFO L93 Difference]: Finished difference Result 159530 states and 240413 transitions. [2021-11-21 00:09:29,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:09:29,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 760 [2021-11-21 00:09:29,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:30,349 INFO L225 Difference]: With dead ends: 159530 [2021-11-21 00:09:30,349 INFO L226 Difference]: Without dead ends: 103716 [2021-11-21 00:09:30,563 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:09:30,563 INFO L933 BasicCegarLoop]: 6506 mSDtfsCounter, 5219 mSDsluCounter, 5853 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 11753 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:30,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5228 Valid, 11753 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1283 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2021-11-21 00:09:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103716 states.