./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/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-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/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 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:41:11,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:41:11,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:41:11,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:41:11,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:41:11,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:41:11,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:41:11,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:41:11,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:41:11,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:41:11,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:41:11,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:41:11,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:41:11,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:41:11,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:41:11,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:41:11,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:41:11,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:41:11,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:41:11,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:41:11,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:41:11,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:41:11,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:41:11,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:41:11,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:41:11,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:41:11,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:41:11,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:41:11,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:41:11,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:41:11,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:41:11,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:41:11,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:41:11,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:41:11,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:41:11,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:41:11,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:41:11,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:41:11,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:41:11,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:41:11,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:41:11,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:41:11,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:41:11,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:41:11,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:41:11,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:41:11,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:41:11,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:41:11,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:41:11,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:41:11,365 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:41:11,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:41:11,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:41:11,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:41:11,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:41:11,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:41:11,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:41:11,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:41:11,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:11,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:41:11,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:41:11,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:41:11,369 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 [2021-11-21 01:41:11,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:41:11,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:41:11,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:41:11,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:41:11,644 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:41:11,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-21 01:41:11,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/data/015f56e58/5428b0c3bd03432da8f64ec4423156aa/FLAG9cf5d4165 [2021-11-21 01:41:12,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:41:12,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-21 01:41:12,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/data/015f56e58/5428b0c3bd03432da8f64ec4423156aa/FLAG9cf5d4165 [2021-11-21 01:41:13,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/data/015f56e58/5428b0c3bd03432da8f64ec4423156aa [2021-11-21 01:41:13,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:41:13,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:41:13,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:13,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:41:13,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:41:13,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:13" (1/1) ... [2021-11-21 01:41:13,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e16034c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:13, skipping insertion in model container [2021-11-21 01:41:13,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:13" (1/1) ... [2021-11-21 01:41:13,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:41:13,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:41:17,832 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2021-11-21 01:41:17,835 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2021-11-21 01:41:17,836 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2021-11-21 01:41:17,837 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2021-11-21 01:41:17,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:17,948 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:41:18,456 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2021-11-21 01:41:18,457 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2021-11-21 01:41:18,457 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2021-11-21 01:41:18,458 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_cd671dd5-46b7-46c9-9df5-f338ba886b4a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2021-11-21 01:41:18,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:18,919 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:41:18,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18 WrapperNode [2021-11-21 01:41:18,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:18,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:18,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:41:18,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:41:18,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,357 INFO L137 Inliner]: procedures = 663, calls = 2943, calls flagged for inlining = 321, calls inlined = 256, statements flattened = 6033 [2021-11-21 01:41:19,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:19,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:41:19,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:41:19,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:41:19,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:41:19,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:41:19,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:41:19,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:41:19,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (1/1) ... [2021-11-21 01:41:19,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:19,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:41:19,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd671dd5-46b7-46c9-9df5-f338ba886b4a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:41:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:41:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:41:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:41:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 01:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 01:41:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2021-11-21 01:41:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2021-11-21 01:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:41:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2021-11-21 01:41:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2021-11-21 01:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 01:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 01:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2021-11-21 01:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2021-11-21 01:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:41:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:41:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2021-11-21 01:41:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2021-11-21 01:41:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2021-11-21 01:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2021-11-21 01:41:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:41:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-21 01:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-21 01:41:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:41:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:41:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:41:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:41:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2021-11-21 01:41:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2021-11-21 01:41:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:41:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:41:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2021-11-21 01:41:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2021-11-21 01:41:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2021-11-21 01:41:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2021-11-21 01:41:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:41:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:41:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:41:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:41:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:41:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:41:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:41:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:41:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-21 01:41:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:41:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:41:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:41:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-21 01:41:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-21 01:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:41:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2021-11-21 01:41:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2021-11-21 01:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-21 01:41:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-21 01:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 01:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:41:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:41:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2021-11-21 01:41:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2021-11-21 01:41:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-21 01:41:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-21 01:41:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 01:41:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 01:41:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:41:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2021-11-21 01:41:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2021-11-21 01:41:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:41:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:41:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:41:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:41:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:41:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2021-11-21 01:41:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2021-11-21 01:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:41:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_82 [2021-11-21 01:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_82 [2021-11-21 01:41:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2021-11-21 01:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2021-11-21 01:41:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2021-11-21 01:41:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2021-11-21 01:41:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:41:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:41:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2021-11-21 01:41:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2021-11-21 01:41:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:41:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:41:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:41:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:41:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:41:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2021-11-21 01:41:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2021-11-21 01:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 01:41:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 01:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:41:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:41:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2021-11-21 01:41:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2021-11-21 01:41:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2021-11-21 01:41:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2021-11-21 01:41:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2021-11-21 01:41:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2021-11-21 01:41:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:41:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:41:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:41:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:41:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 01:41:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 01:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-21 01:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-21 01:41:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2021-11-21 01:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2021-11-21 01:41:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:41:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:41:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-21 01:41:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-21 01:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:41:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:41:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-21 01:41:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-21 01:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:41:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2021-11-21 01:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2021-11-21 01:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:41:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:41:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:41:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2021-11-21 01:41:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2021-11-21 01:41:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-21 01:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-21 01:41:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:41:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-21 01:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-21 01:41:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2021-11-21 01:41:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2021-11-21 01:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2021-11-21 01:41:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2021-11-21 01:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:41:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2021-11-21 01:41:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2021-11-21 01:41:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:41:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2021-11-21 01:41:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2021-11-21 01:41:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:41:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:41:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2021-11-21 01:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2021-11-21 01:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2021-11-21 01:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2021-11-21 01:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2021-11-21 01:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2021-11-21 01:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2021-11-21 01:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2021-11-21 01:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2021-11-21 01:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2021-11-21 01:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-21 01:41:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-21 01:41:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2021-11-21 01:41:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2021-11-21 01:41:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2021-11-21 01:41:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2021-11-21 01:41:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2021-11-21 01:41:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2021-11-21 01:41:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2021-11-21 01:41:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2021-11-21 01:41:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:41:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:41:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:41:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:41:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:41:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:41:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:41:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:41:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 01:41:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 01:41:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-21 01:41:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-21 01:41:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2021-11-21 01:41:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2021-11-21 01:41:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:41:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:41:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:41:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-21 01:41:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-21 01:41:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:41:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:41:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:41:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2021-11-21 01:41:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2021-11-21 01:41:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2021-11-21 01:41:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2021-11-21 01:41:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2021-11-21 01:41:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2021-11-21 01:41:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:41:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2021-11-21 01:41:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2021-11-21 01:41:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:41:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 01:41:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 01:41:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 01:41:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:41:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:41:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:41:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:41:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2021-11-21 01:41:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2021-11-21 01:41:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2021-11-21 01:41:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2021-11-21 01:41:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-21 01:41:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-21 01:41:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2021-11-21 01:41:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2021-11-21 01:41:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:41:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:41:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2021-11-21 01:41:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2021-11-21 01:41:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2021-11-21 01:41:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2021-11-21 01:41:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:41:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:41:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:41:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:41:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2021-11-21 01:41:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2021-11-21 01:41:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_81 [2021-11-21 01:41:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_81 [2021-11-21 01:41:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2021-11-21 01:41:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2021-11-21 01:41:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2021-11-21 01:41:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2021-11-21 01:41:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2021-11-21 01:41:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2021-11-21 01:41:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:41:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:41:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2021-11-21 01:41:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2021-11-21 01:41:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:41:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:41:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2021-11-21 01:41:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2021-11-21 01:41:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:41:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:41:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2021-11-21 01:41:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2021-11-21 01:41:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:41:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2021-11-21 01:41:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2021-11-21 01:41:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2021-11-21 01:41:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2021-11-21 01:41:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2021-11-21 01:41:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2021-11-21 01:41:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:41:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:41:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:41:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:41:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2021-11-21 01:41:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2021-11-21 01:41:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:41:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:41:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2021-11-21 01:41:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2021-11-21 01:41:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2021-11-21 01:41:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2021-11-21 01:41:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 01:41:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 01:41:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 01:41:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 01:41:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2021-11-21 01:41:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2021-11-21 01:41:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2021-11-21 01:41:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2021-11-21 01:41:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:41:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:41:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2021-11-21 01:41:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2021-11-21 01:41:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2021-11-21 01:41:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2021-11-21 01:41:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2021-11-21 01:41:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2021-11-21 01:41:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2021-11-21 01:41:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2021-11-21 01:41:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-21 01:41:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-21 01:41:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:41:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:41:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:41:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2021-11-21 01:41:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2021-11-21 01:41:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:41:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:41:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 01:41:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 01:41:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2021-11-21 01:41:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2021-11-21 01:41:20,797 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:41:20,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:41:21,193 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:41:26,361 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:41:26,609 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:41:27,920 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:41:27,920 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 01:41:27,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:27 BoogieIcfgContainer [2021-11-21 01:41:27,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:41:28,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:41:28,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:41:28,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:41:28,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:13" (1/3) ... [2021-11-21 01:41:28,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23adf23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:28, skipping insertion in model container [2021-11-21 01:41:28,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:18" (2/3) ... [2021-11-21 01:41:28,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23adf23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:28, skipping insertion in model container [2021-11-21 01:41:28,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:27" (3/3) ... [2021-11-21 01:41:28,016 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-21 01:41:28,025 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:41:28,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 01:41:28,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:41:28,115 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 01:41:28,122 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 01:41:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) [2021-11-21 01:41:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-21 01:41:28,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:28,232 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:28,233 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 01:41:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash -315990233, now seen corresponding path program 1 times [2021-11-21 01:41:28,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:28,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863570332] [2021-11-21 01:41:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:28,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:41:28,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863570332] [2021-11-21 01:41:28,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863570332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:28,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:28,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:28,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334483472] [2021-11-21 01:41:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:28,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:28,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:29,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:29,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:29,008 INFO L87 Difference]: Start difference. First operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:32,179 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 01:41:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:33,755 INFO L93 Difference]: Finished difference Result 5941 states and 8762 transitions. [2021-11-21 01:41:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:33,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 201 [2021-11-21 01:41:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:33,812 INFO L225 Difference]: With dead ends: 5941 [2021-11-21 01:41:33,812 INFO L226 Difference]: Without dead ends: 3883 [2021-11-21 01:41:33,832 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 01:41:33,835 INFO L933 BasicCegarLoop]: 3318 mSDtfsCounter, 2648 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:33,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2648 Valid, 5851 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 870 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-21 01:41:33,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3883 states. [2021-11-21 01:41:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3883 to 3878. [2021-11-21 01:41:34,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 2222 states have (on average 1.298829882988299) internal successors, (2886), 2313 states have internal predecessors, (2886), 1346 states have call successors, (1346), 308 states have call predecessors, (1346), 307 states have return successors, (1342), 1311 states have call predecessors, (1342), 1342 states have call successors, (1342) [2021-11-21 01:41:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5574 transitions. [2021-11-21 01:41:34,368 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5574 transitions. Word has length 201 [2021-11-21 01:41:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:34,370 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 5574 transitions. [2021-11-21 01:41:34,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5574 transitions. [2021-11-21 01:41:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-21 01:41:34,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:34,379 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:34,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:41:34,380 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 01:41:34,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1925710896, now seen corresponding path program 1 times [2021-11-21 01:41:34,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:34,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445189374] [2021-11-21 01:41:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:34,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:41:34,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:34,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445189374] [2021-11-21 01:41:34,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445189374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:34,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:34,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:34,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398478965] [2021-11-21 01:41:34,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:34,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:34,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:34,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:34,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:34,609 INFO L87 Difference]: Start difference. First operand 3878 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:39,014 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 01:41:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:39,952 INFO L93 Difference]: Finished difference Result 8746 states and 12514 transitions. [2021-11-21 01:41:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:39,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2021-11-21 01:41:39,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:40,002 INFO L225 Difference]: With dead ends: 8746 [2021-11-21 01:41:40,003 INFO L226 Difference]: Without dead ends: 4905 [2021-11-21 01:41:40,026 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 01:41:40,027 INFO L933 BasicCegarLoop]: 3092 mSDtfsCounter, 2164 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:40,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2164 Valid, 5574 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 879 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-21 01:41:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4905 states. [2021-11-21 01:41:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4905 to 4873. [2021-11-21 01:41:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4873 states, 2749 states have (on average 1.2837395416515096) internal successors, (3529), 2877 states have internal predecessors, (3529), 1707 states have call successors, (1707), 416 states have call predecessors, (1707), 414 states have return successors, (1704), 1652 states have call predecessors, (1704), 1703 states have call successors, (1704) [2021-11-21 01:41:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4873 states to 4873 states and 6940 transitions. [2021-11-21 01:41:40,453 INFO L78 Accepts]: Start accepts. Automaton has 4873 states and 6940 transitions. Word has length 209 [2021-11-21 01:41:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:40,456 INFO L470 AbstractCegarLoop]: Abstraction has 4873 states and 6940 transitions. [2021-11-21 01:41:40,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:40,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4873 states and 6940 transitions. [2021-11-21 01:41:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-21 01:41:40,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:40,464 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:40,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:41:40,464 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 01:41:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1404481770, now seen corresponding path program 1 times [2021-11-21 01:41:40,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:40,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769031614] [2021-11-21 01:41:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:40,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:41:40,705 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:40,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769031614] [2021-11-21 01:41:40,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769031614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:40,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:40,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:40,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724159746] [2021-11-21 01:41:40,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:40,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:40,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:40,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:40,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:40,712 INFO L87 Difference]: Start difference. First operand 4873 states and 6940 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:43,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:44,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:46,341 INFO L93 Difference]: Finished difference Result 13932 states and 19795 transitions. [2021-11-21 01:41:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2021-11-21 01:41:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:46,431 INFO L225 Difference]: With dead ends: 13932 [2021-11-21 01:41:46,431 INFO L226 Difference]: Without dead ends: 9096 [2021-11-21 01:41:46,464 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 01:41:46,469 INFO L933 BasicCegarLoop]: 3535 mSDtfsCounter, 2682 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 6025 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:46,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2682 Valid, 6025 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-21 01:41:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9096 states. [2021-11-21 01:41:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9096 to 9060. [2021-11-21 01:41:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 5091 states have (on average 1.26694166175604) internal successors, (6450), 5323 states have internal predecessors, (6450), 3165 states have call successors, (3165), 804 states have call predecessors, (3165), 801 states have return successors, (3162), 3068 states have call predecessors, (3162), 3161 states have call successors, (3162) [2021-11-21 01:41:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 12777 transitions. [2021-11-21 01:41:47,066 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 12777 transitions. Word has length 212 [2021-11-21 01:41:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:47,067 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 12777 transitions. [2021-11-21 01:41:47,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 12777 transitions. [2021-11-21 01:41:47,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-21 01:41:47,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:47,074 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:47,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:41:47,074 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:41:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:47,075 INFO L85 PathProgramCache]: Analyzing trace with hash -809018407, now seen corresponding path program 1 times [2021-11-21 01:41:47,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:47,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262935843] [2021-11-21 01:41:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:47,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:41:47,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:47,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262935843] [2021-11-21 01:41:47,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262935843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:47,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:47,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:47,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441238358] [2021-11-21 01:41:47,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:47,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:47,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:47,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:47,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:47,320 INFO L87 Difference]: Start difference. First operand 9060 states and 12777 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:50,306 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 01:41:52,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:52,182 INFO L93 Difference]: Finished difference Result 23264 states and 32804 transitions. [2021-11-21 01:41:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:52,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 216 [2021-11-21 01:41:52,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:52,307 INFO L225 Difference]: With dead ends: 23264 [2021-11-21 01:41:52,308 INFO L226 Difference]: Without dead ends: 14241 [2021-11-21 01:41:52,466 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 01:41:52,470 INFO L933 BasicCegarLoop]: 3741 mSDtfsCounter, 2495 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 6247 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:52,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2495 Valid, 6247 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1053 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-21 01:41:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2021-11-21 01:41:53,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 14205. [2021-11-21 01:41:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 8005 states have (on average 1.2615865084322297) internal successors, (10099), 8375 states have internal predecessors, (10099), 4923 states have call successors, (4923), 1282 states have call predecessors, (4923), 1274 states have return successors, (4921), 4760 states have call predecessors, (4921), 4919 states have call successors, (4921) [2021-11-21 01:41:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 19943 transitions. [2021-11-21 01:41:53,415 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 19943 transitions. Word has length 216 [2021-11-21 01:41:53,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:53,417 INFO L470 AbstractCegarLoop]: Abstraction has 14205 states and 19943 transitions. [2021-11-21 01:41:53,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:41:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 19943 transitions. [2021-11-21 01:41:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-21 01:41:53,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:53,424 INFO L514 BasicCegarLoop]: trace histogram [20, 18, 18, 18, 18, 18, 18, 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] [2021-11-21 01:41:53,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:41:53,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:41:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1190815877, now seen corresponding path program 1 times [2021-11-21 01:41:53,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:53,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613478190] [2021-11-21 01:41:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:53,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2021-11-21 01:41:53,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:53,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613478190] [2021-11-21 01:41:53,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613478190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:53,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:53,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:53,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958297583] [2021-11-21 01:41:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:53,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:53,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:53,623 INFO L87 Difference]: Start difference. First operand 14205 states and 19943 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:41:56,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:56,597 INFO L93 Difference]: Finished difference Result 36813 states and 51817 transitions. [2021-11-21 01:41:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:56,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 232 [2021-11-21 01:41:56,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:56,741 INFO L225 Difference]: With dead ends: 36813 [2021-11-21 01:41:56,741 INFO L226 Difference]: Without dead ends: 22645 [2021-11-21 01:41:56,810 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 01:41:56,811 INFO L933 BasicCegarLoop]: 3515 mSDtfsCounter, 2811 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:56,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 6033 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:41:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22645 states. [2021-11-21 01:41:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22645 to 22599. [2021-11-21 01:41:57,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22599 states, 12877 states have (on average 1.2658227848101267) internal successors, (16300), 13483 states have internal predecessors, (16300), 7740 states have call successors, (7740), 1994 states have call predecessors, (7740), 1979 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:41:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22599 states to 22599 states and 31780 transitions. [2021-11-21 01:41:58,126 INFO L78 Accepts]: Start accepts. Automaton has 22599 states and 31780 transitions. Word has length 232 [2021-11-21 01:41:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:58,127 INFO L470 AbstractCegarLoop]: Abstraction has 22599 states and 31780 transitions. [2021-11-21 01:41:58,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-21 01:41:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 22599 states and 31780 transitions. [2021-11-21 01:41:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-21 01:41:58,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:58,133 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:58,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:41:58,134 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 01:41:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:58,135 INFO L85 PathProgramCache]: Analyzing trace with hash 811468684, now seen corresponding path program 1 times [2021-11-21 01:41:58,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734582900] [2021-11-21 01:41:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:58,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-21 01:41:58,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:58,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734582900] [2021-11-21 01:41:58,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734582900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:58,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:58,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:41:58,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050463272] [2021-11-21 01:41:58,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:58,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:41:58,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:58,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:41:58,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:58,446 INFO L87 Difference]: Start difference. First operand 22599 states and 31780 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:42:02,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:02,018 INFO L93 Difference]: Finished difference Result 22605 states and 31785 transitions. [2021-11-21 01:42:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 243 [2021-11-21 01:42:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:02,155 INFO L225 Difference]: With dead ends: 22605 [2021-11-21 01:42:02,155 INFO L226 Difference]: Without dead ends: 22603 [2021-11-21 01:42:02,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:02,173 INFO L933 BasicCegarLoop]: 2540 mSDtfsCounter, 2888 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 7602 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:02,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2904 Valid, 7602 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 01:42:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22603 states. [2021-11-21 01:42:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22603 to 22603. [2021-11-21 01:42:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22603 states, 12880 states have (on average 1.2657608695652174) internal successors, (16303), 13486 states have internal predecessors, (16303), 7740 states have call successors, (7740), 1995 states have call predecessors, (7740), 1980 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:42:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 31783 transitions. [2021-11-21 01:42:03,827 INFO L78 Accepts]: Start accepts. Automaton has 22603 states and 31783 transitions. Word has length 243 [2021-11-21 01:42:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:03,828 INFO L470 AbstractCegarLoop]: Abstraction has 22603 states and 31783 transitions. [2021-11-21 01:42:03,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:42:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 22603 states and 31783 transitions. [2021-11-21 01:42:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-21 01:42:03,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:03,835 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:03,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:42:03,836 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 01:42:03,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:03,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1722231545, now seen corresponding path program 1 times [2021-11-21 01:42:03,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:03,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505327841] [2021-11-21 01:42:03,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:03,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:04,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-21 01:42:04,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:04,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505327841] [2021-11-21 01:42:04,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505327841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:04,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:04,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:04,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190419440] [2021-11-21 01:42:04,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:04,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:04,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:04,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:04,487 INFO L87 Difference]: Start difference. First operand 22603 states and 31783 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:42:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:08,780 INFO L93 Difference]: Finished difference Result 22609 states and 31788 transitions. [2021-11-21 01:42:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 248 [2021-11-21 01:42:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:08,920 INFO L225 Difference]: With dead ends: 22609 [2021-11-21 01:42:08,921 INFO L226 Difference]: Without dead ends: 22607 [2021-11-21 01:42:08,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:08,935 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2883 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:08,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2898 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 01:42:08,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2021-11-21 01:42:10,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 22607. [2021-11-21 01:42:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22607 states, 12883 states have (on average 1.2656989831560972) internal successors, (16306), 13489 states have internal predecessors, (16306), 7740 states have call successors, (7740), 1996 states have call predecessors, (7740), 1981 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:42:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 31786 transitions. [2021-11-21 01:42:10,510 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 31786 transitions. Word has length 248 [2021-11-21 01:42:10,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:10,512 INFO L470 AbstractCegarLoop]: Abstraction has 22607 states and 31786 transitions. [2021-11-21 01:42:10,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:42:10,512 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 31786 transitions. [2021-11-21 01:42:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-21 01:42:10,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:10,518 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 3, 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] [2021-11-21 01:42:10,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:42:10,519 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 01:42:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1169538300, now seen corresponding path program 1 times [2021-11-21 01:42:10,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:10,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513752554] [2021-11-21 01:42:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:10,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-21 01:42:10,996 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:10,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513752554] [2021-11-21 01:42:10,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513752554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:10,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:10,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:10,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237128546] [2021-11-21 01:42:10,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:10,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:10,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:10,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:10,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:10,999 INFO L87 Difference]: Start difference. First operand 22607 states and 31786 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 01:42:14,248 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 01:42:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:16,621 INFO L93 Difference]: Finished difference Result 22613 states and 31791 transitions. [2021-11-21 01:42:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 257 [2021-11-21 01:42:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:16,739 INFO L225 Difference]: With dead ends: 22613 [2021-11-21 01:42:16,739 INFO L226 Difference]: Without dead ends: 22611 [2021-11-21 01:42:16,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:16,753 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2882 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:16,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2896 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1268 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-21 01:42:16,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22611 states. [2021-11-21 01:42:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22611 to 22611. [2021-11-21 01:42:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22611 states, 12886 states have (on average 1.2656371255626262) internal successors, (16309), 13492 states have internal predecessors, (16309), 7740 states have call successors, (7740), 1997 states have call predecessors, (7740), 1982 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:42:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22611 states to 22611 states and 31789 transitions. [2021-11-21 01:42:18,246 INFO L78 Accepts]: Start accepts. Automaton has 22611 states and 31789 transitions. Word has length 257 [2021-11-21 01:42:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:18,247 INFO L470 AbstractCegarLoop]: Abstraction has 22611 states and 31789 transitions. [2021-11-21 01:42:18,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-21 01:42:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 22611 states and 31789 transitions. [2021-11-21 01:42:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-21 01:42:18,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:18,254 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:18,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:42:18,254 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 01:42:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1815375207, now seen corresponding path program 1 times [2021-11-21 01:42:18,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:18,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042363672] [2021-11-21 01:42:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:18,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-21 01:42:18,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:18,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042363672] [2021-11-21 01:42:18,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042363672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:18,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:18,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:18,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282440024] [2021-11-21 01:42:18,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:18,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:18,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:18,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:18,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:18,703 INFO L87 Difference]: Start difference. First operand 22611 states and 31789 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 01:42:20,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:23,288 INFO L93 Difference]: Finished difference Result 22617 states and 31794 transitions. [2021-11-21 01:42:23,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:23,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 258 [2021-11-21 01:42:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:23,425 INFO L225 Difference]: With dead ends: 22617 [2021-11-21 01:42:23,425 INFO L226 Difference]: Without dead ends: 22615 [2021-11-21 01:42:23,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:23,440 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2883 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:23,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2896 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 01:42:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22615 states. [2021-11-21 01:42:24,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22615 to 22615. [2021-11-21 01:42:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22615 states, 12889 states have (on average 1.2655752967646832) internal successors, (16312), 13495 states have internal predecessors, (16312), 7740 states have call successors, (7740), 1998 states have call predecessors, (7740), 1983 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:42:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22615 states to 22615 states and 31792 transitions. [2021-11-21 01:42:24,692 INFO L78 Accepts]: Start accepts. Automaton has 22615 states and 31792 transitions. Word has length 258 [2021-11-21 01:42:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:24,693 INFO L470 AbstractCegarLoop]: Abstraction has 22615 states and 31792 transitions. [2021-11-21 01:42:24,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 01:42:24,693 INFO L276 IsEmpty]: Start isEmpty. Operand 22615 states and 31792 transitions. [2021-11-21 01:42:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-21 01:42:24,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:24,700 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:24,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:42:24,701 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 01:42:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash 553998640, now seen corresponding path program 1 times [2021-11-21 01:42:24,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:24,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474077344] [2021-11-21 01:42:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:24,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2021-11-21 01:42:24,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474077344] [2021-11-21 01:42:24,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474077344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:24,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:24,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:24,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252265170] [2021-11-21 01:42:24,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:24,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:24,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:24,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:24,958 INFO L87 Difference]: Start difference. First operand 22615 states and 31792 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:42:29,137 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 01:42:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:31,085 INFO L93 Difference]: Finished difference Result 22621 states and 31797 transitions. [2021-11-21 01:42:31,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:31,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 266 [2021-11-21 01:42:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:31,194 INFO L225 Difference]: With dead ends: 22621 [2021-11-21 01:42:31,194 INFO L226 Difference]: Without dead ends: 22619 [2021-11-21 01:42:31,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:31,209 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2882 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:31,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1268 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2021-11-21 01:42:31,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22619 states. [2021-11-21 01:42:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22619 to 22619. [2021-11-21 01:42:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22619 states, 12892 states have (on average 1.2655134967421657) internal successors, (16315), 13498 states have internal predecessors, (16315), 7740 states have call successors, (7740), 1999 states have call predecessors, (7740), 1984 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2021-11-21 01:42:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22619 states to 22619 states and 31795 transitions. [2021-11-21 01:42:32,374 INFO L78 Accepts]: Start accepts. Automaton has 22619 states and 31795 transitions. Word has length 266 [2021-11-21 01:42:32,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:32,375 INFO L470 AbstractCegarLoop]: Abstraction has 22619 states and 31795 transitions. [2021-11-21 01:42:32,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-21 01:42:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 22619 states and 31795 transitions. [2021-11-21 01:42:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-21 01:42:32,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:32,385 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 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] [2021-11-21 01:42:32,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:42:32,385 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 01:42:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:32,386 INFO L85 PathProgramCache]: Analyzing trace with hash 131283408, now seen corresponding path program 1 times [2021-11-21 01:42:32,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:32,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588110204] [2021-11-21 01:42:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:32,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2021-11-21 01:42:32,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588110204] [2021-11-21 01:42:32,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588110204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:32,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:32,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:32,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054272819] [2021-11-21 01:42:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:32,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:32,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:32,569 INFO L87 Difference]: Start difference. First operand 22619 states and 31795 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:42:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:36,466 INFO L93 Difference]: Finished difference Result 54589 states and 76785 transitions. [2021-11-21 01:42:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 263 [2021-11-21 01:42:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:36,578 INFO L225 Difference]: With dead ends: 54589 [2021-11-21 01:42:36,578 INFO L226 Difference]: Without dead ends: 32103 [2021-11-21 01:42:36,683 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 01:42:36,684 INFO L933 BasicCegarLoop]: 3835 mSDtfsCounter, 2490 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:36,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2490 Valid, 6339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:42:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32103 states. [2021-11-21 01:42:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32103 to 32039. [2021-11-21 01:42:38,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32039 states, 18305 states have (on average 1.265118819994537) internal successors, (23158), 19171 states have internal predecessors, (23158), 10902 states have call successors, (10902), 2854 states have call predecessors, (10902), 2829 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2021-11-21 01:42:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32039 states to 32039 states and 44964 transitions. [2021-11-21 01:42:38,304 INFO L78 Accepts]: Start accepts. Automaton has 32039 states and 44964 transitions. Word has length 263 [2021-11-21 01:42:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:38,305 INFO L470 AbstractCegarLoop]: Abstraction has 32039 states and 44964 transitions. [2021-11-21 01:42:38,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:42:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 32039 states and 44964 transitions. [2021-11-21 01:42:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-21 01:42:38,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:38,311 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:38,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:42:38,311 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 01:42:38,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:38,312 INFO L85 PathProgramCache]: Analyzing trace with hash -533170271, now seen corresponding path program 1 times [2021-11-21 01:42:38,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:38,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372650575] [2021-11-21 01:42:38,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:38,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1455 trivial. 0 not checked. [2021-11-21 01:42:38,775 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:38,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372650575] [2021-11-21 01:42:38,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372650575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:38,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:38,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:38,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892069920] [2021-11-21 01:42:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:38,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:38,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:38,778 INFO L87 Difference]: Start difference. First operand 32039 states and 44964 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:42:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:44,076 INFO L93 Difference]: Finished difference Result 32045 states and 44969 transitions. [2021-11-21 01:42:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 272 [2021-11-21 01:42:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:44,190 INFO L225 Difference]: With dead ends: 32045 [2021-11-21 01:42:44,190 INFO L226 Difference]: Without dead ends: 32043 [2021-11-21 01:42:44,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:44,205 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2882 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:44,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2893 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-21 01:42:44,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32043 states. [2021-11-21 01:42:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32043 to 32043. [2021-11-21 01:42:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32043 states, 18308 states have (on average 1.265075376884422) internal successors, (23161), 19174 states have internal predecessors, (23161), 10902 states have call successors, (10902), 2855 states have call predecessors, (10902), 2830 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2021-11-21 01:42:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32043 states to 32043 states and 44967 transitions. [2021-11-21 01:42:45,932 INFO L78 Accepts]: Start accepts. Automaton has 32043 states and 44967 transitions. Word has length 272 [2021-11-21 01:42:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:45,933 INFO L470 AbstractCegarLoop]: Abstraction has 32043 states and 44967 transitions. [2021-11-21 01:42:45,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:42:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 32043 states and 44967 transitions. [2021-11-21 01:42:45,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-21 01:42:45,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:45,940 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:45,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:42:45,941 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:42:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash -767953212, now seen corresponding path program 1 times [2021-11-21 01:42:45,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:45,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621420873] [2021-11-21 01:42:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:45,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1487 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2021-11-21 01:42:46,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:46,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621420873] [2021-11-21 01:42:46,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621420873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:46,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:46,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:46,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834973045] [2021-11-21 01:42:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:46,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:46,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:46,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:46,229 INFO L87 Difference]: Start difference. First operand 32043 states and 44967 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:42:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:51,392 INFO L93 Difference]: Finished difference Result 32049 states and 44972 transitions. [2021-11-21 01:42:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:51,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 277 [2021-11-21 01:42:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:51,514 INFO L225 Difference]: With dead ends: 32049 [2021-11-21 01:42:51,514 INFO L226 Difference]: Without dead ends: 32047 [2021-11-21 01:42:51,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:51,534 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2882 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:51,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2892 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 01:42:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32047 states. [2021-11-21 01:42:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32047 to 32047. [2021-11-21 01:42:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32047 states, 18311 states have (on average 1.2650319480093932) internal successors, (23164), 19177 states have internal predecessors, (23164), 10902 states have call successors, (10902), 2856 states have call predecessors, (10902), 2831 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2021-11-21 01:42:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32047 states to 32047 states and 44970 transitions. [2021-11-21 01:42:53,282 INFO L78 Accepts]: Start accepts. Automaton has 32047 states and 44970 transitions. Word has length 277 [2021-11-21 01:42:53,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:53,283 INFO L470 AbstractCegarLoop]: Abstraction has 32047 states and 44970 transitions. [2021-11-21 01:42:53,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:42:53,283 INFO L276 IsEmpty]: Start isEmpty. Operand 32047 states and 44970 transitions. [2021-11-21 01:42:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-21 01:42:53,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:53,290 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:53,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:42:53,291 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 01:42:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1565022681, now seen corresponding path program 1 times [2021-11-21 01:42:53,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:53,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141203319] [2021-11-21 01:42:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:53,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2021-11-21 01:42:53,551 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:53,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141203319] [2021-11-21 01:42:53,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141203319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:53,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:53,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:53,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106636094] [2021-11-21 01:42:53,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:53,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:53,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:53,555 INFO L87 Difference]: Start difference. First operand 32047 states and 44970 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:42:56,754 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 01:42:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:59,395 INFO L93 Difference]: Finished difference Result 32053 states and 44975 transitions. [2021-11-21 01:42:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:42:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 278 [2021-11-21 01:42:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:59,598 INFO L225 Difference]: With dead ends: 32053 [2021-11-21 01:42:59,598 INFO L226 Difference]: Without dead ends: 32051 [2021-11-21 01:42:59,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:59,609 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2883 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:59,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2892 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1268 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-21 01:42:59,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32051 states. [2021-11-21 01:43:01,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32051 to 32051. [2021-11-21 01:43:01,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32051 states, 18314 states have (on average 1.2649885333624549) internal successors, (23167), 19180 states have internal predecessors, (23167), 10902 states have call successors, (10902), 2857 states have call predecessors, (10902), 2832 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2021-11-21 01:43:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32051 states to 32051 states and 44973 transitions. [2021-11-21 01:43:01,203 INFO L78 Accepts]: Start accepts. Automaton has 32051 states and 44973 transitions. Word has length 278 [2021-11-21 01:43:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:01,204 INFO L470 AbstractCegarLoop]: Abstraction has 32051 states and 44973 transitions. [2021-11-21 01:43:01,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:43:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 32051 states and 44973 transitions. [2021-11-21 01:43:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-21 01:43:01,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:01,211 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:01,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:43:01,211 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:43:01,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:01,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1017143568, now seen corresponding path program 1 times [2021-11-21 01:43:01,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:01,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535821527] [2021-11-21 01:43:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:01,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1542 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2021-11-21 01:43:01,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:01,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535821527] [2021-11-21 01:43:01,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535821527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:01,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:01,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:01,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148698781] [2021-11-21 01:43:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:01,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:01,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:01,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:01,432 INFO L87 Difference]: Start difference. First operand 32051 states and 44973 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:43:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:05,495 INFO L93 Difference]: Finished difference Result 32459 states and 45331 transitions. [2021-11-21 01:43:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:43:05,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 286 [2021-11-21 01:43:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:05,628 INFO L225 Difference]: With dead ends: 32459 [2021-11-21 01:43:05,628 INFO L226 Difference]: Without dead ends: 32457 [2021-11-21 01:43:05,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:43:05,646 INFO L933 BasicCegarLoop]: 2548 mSDtfsCounter, 2838 mSDsluCounter, 5973 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 7683 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:05,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2846 Valid, 7683 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 01:43:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32457 states. [2021-11-21 01:43:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32457 to 32455. [2021-11-21 01:43:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32455 states, 18541 states have (on average 1.2626071948654334) internal successors, (23410), 19407 states have internal predecessors, (23410), 10958 states have call successors, (10958), 2978 states have call predecessors, (10958), 2953 states have return successors, (10960), 10545 states have call predecessors, (10960), 10954 states have call successors, (10960) [2021-11-21 01:43:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32455 states to 32455 states and 45328 transitions. [2021-11-21 01:43:07,343 INFO L78 Accepts]: Start accepts. Automaton has 32455 states and 45328 transitions. Word has length 286 [2021-11-21 01:43:07,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:07,343 INFO L470 AbstractCegarLoop]: Abstraction has 32455 states and 45328 transitions. [2021-11-21 01:43:07,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-21 01:43:07,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32455 states and 45328 transitions. [2021-11-21 01:43:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-21 01:43:07,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:07,352 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 10, 9, 9, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:07,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:43:07,353 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:43:07,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1520421601, now seen corresponding path program 1 times [2021-11-21 01:43:07,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:07,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864567694] [2021-11-21 01:43:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:07,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2021-11-21 01:43:07,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:07,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864567694] [2021-11-21 01:43:07,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864567694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:07,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:07,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:07,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525942156] [2021-11-21 01:43:07,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:07,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:07,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:07,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:07,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:07,595 INFO L87 Difference]: Start difference. First operand 32455 states and 45328 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:43:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:12,243 INFO L93 Difference]: Finished difference Result 32461 states and 45333 transitions. [2021-11-21 01:43:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:43:12,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 292 [2021-11-21 01:43:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:12,356 INFO L225 Difference]: With dead ends: 32461 [2021-11-21 01:43:12,356 INFO L226 Difference]: Without dead ends: 32459 [2021-11-21 01:43:12,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:43:12,373 INFO L933 BasicCegarLoop]: 2543 mSDtfsCounter, 2882 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:12,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2889 Valid, 7605 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-21 01:43:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32459 states. [2021-11-21 01:43:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32459 to 32459. [2021-11-21 01:43:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32459 states, 18544 states have (on average 1.2625647109577223) internal successors, (23413), 19410 states have internal predecessors, (23413), 10958 states have call successors, (10958), 2979 states have call predecessors, (10958), 2954 states have return successors, (10960), 10545 states have call predecessors, (10960), 10954 states have call successors, (10960) [2021-11-21 01:43:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32459 states to 32459 states and 45331 transitions. [2021-11-21 01:43:14,226 INFO L78 Accepts]: Start accepts. Automaton has 32459 states and 45331 transitions. Word has length 292 [2021-11-21 01:43:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:14,227 INFO L470 AbstractCegarLoop]: Abstraction has 32459 states and 45331 transitions. [2021-11-21 01:43:14,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:43:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 32459 states and 45331 transitions. [2021-11-21 01:43:14,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-21 01:43:14,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:14,237 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:14,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:43:14,237 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:43:14,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash 440267971, now seen corresponding path program 1 times [2021-11-21 01:43:14,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:14,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588573211] [2021-11-21 01:43:14,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:14,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1507 trivial. 0 not checked. [2021-11-21 01:43:14,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588573211] [2021-11-21 01:43:14,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588573211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:14,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:14,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:14,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50226839] [2021-11-21 01:43:14,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:14,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:14,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:14,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:14,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:14,614 INFO L87 Difference]: Start difference. First operand 32459 states and 45331 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:43:18,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:21,505 INFO L93 Difference]: Finished difference Result 78832 states and 110126 transitions. [2021-11-21 01:43:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:21,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 289 [2021-11-21 01:43:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:21,667 INFO L225 Difference]: With dead ends: 78832 [2021-11-21 01:43:21,668 INFO L226 Difference]: Without dead ends: 46506 [2021-11-21 01:43:21,760 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 01:43:21,761 INFO L933 BasicCegarLoop]: 4785 mSDtfsCounter, 2623 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 7301 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:21,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2623 Valid, 7301 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1246 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-21 01:43:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46506 states. [2021-11-21 01:43:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46506 to 46408. [2021-11-21 01:43:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46408 states, 26599 states have (on average 1.2634685514493027) internal successors, (33607), 27855 states have internal predecessors, (33607), 15570 states have call successors, (15570), 4273 states have call predecessors, (15570), 4236 states have return successors, (15575), 14960 states have call predecessors, (15575), 15566 states have call successors, (15575) [2021-11-21 01:43:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46408 states to 46408 states and 64752 transitions. [2021-11-21 01:43:24,716 INFO L78 Accepts]: Start accepts. Automaton has 46408 states and 64752 transitions. Word has length 289 [2021-11-21 01:43:24,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:24,720 INFO L470 AbstractCegarLoop]: Abstraction has 46408 states and 64752 transitions. [2021-11-21 01:43:24,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:43:24,721 INFO L276 IsEmpty]: Start isEmpty. Operand 46408 states and 64752 transitions. [2021-11-21 01:43:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-21 01:43:24,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:24,727 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:24,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:43:24,727 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:43:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash -803665276, now seen corresponding path program 1 times [2021-11-21 01:43:24,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:24,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218723438] [2021-11-21 01:43:24,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:24,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-21 01:43:24,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:24,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218723438] [2021-11-21 01:43:24,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218723438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:24,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:24,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:24,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910215762] [2021-11-21 01:43:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:24,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:24,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:24,948 INFO L87 Difference]: Start difference. First operand 46408 states and 64752 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-21 01:43:27,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []