./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/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_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:20:23,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:20:23,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:20:23,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:20:23,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:20:23,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:20:23,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:20:23,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:20:23,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:20:23,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:20:23,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:20:23,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:20:23,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:20:23,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:20:23,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:20:23,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:20:23,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:20:23,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:20:23,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:20:23,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:20:23,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:20:23,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:20:23,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:20:23,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:20:23,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:20:23,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:20:23,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:20:23,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:20:23,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:20:23,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:20:23,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:20:23,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:20:23,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:20:23,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:20:23,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:20:23,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:20:23,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:20:23,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:20:23,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:20:23,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:20:23,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:20:23,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:20:23,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:20:23,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:20:23,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:20:23,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:20:23,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:20:23,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:20:23,394 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:20:23,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:20:23,395 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:20:23,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:20:23,395 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:20:23,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:20:23,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:20:23,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:20:23,396 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:20:23,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:20:23,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:20:23,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:20:23,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:20:23,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:20:23,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:20:23,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:20:23,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:20:23,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:20:23,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:20:23,400 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:20:23,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:20:23,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:20:23,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:20:23,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:23,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:20:23,402 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:20:23,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:20:23,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:20:23,403 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:20:23,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:20:23,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:20:23,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:20:23,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 [2022-11-22 00:20:23,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:20:23,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:20:23,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:20:23,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:20:23,706 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:20:23,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 00:20:26,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:20:27,565 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:20:27,566 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 00:20:27,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/data/f225c9b8f/f81dfbc9e22847ec803722a1c0eb8a6f/FLAGc163a901f [2022-11-22 00:20:27,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/data/f225c9b8f/f81dfbc9e22847ec803722a1c0eb8a6f [2022-11-22 00:20:27,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:20:27,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:20:27,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:27,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:20:27,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:20:27,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:27" (1/1) ... [2022-11-22 00:20:27,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3505e31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:27, skipping insertion in model container [2022-11-22 00:20:27,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:27" (1/1) ... [2022-11-22 00:20:27,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:20:27,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:20:32,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-11-22 00:20:32,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-11-22 00:20:32,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-11-22 00:20:32,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-11-22 00:20:32,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:32,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:20:33,275 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-11-22 00:20:33,276 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-11-22 00:20:33,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-11-22 00:20:33,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-11-22 00:20:33,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:33,682 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:20:33,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33 WrapperNode [2022-11-22 00:20:33,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:33,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:33,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:20:33,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:20:33,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:33,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,104 INFO L138 Inliner]: procedures = 663, calls = 2959, calls flagged for inlining = 321, calls inlined = 256, statements flattened = 6034 [2022-11-22 00:20:34,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:34,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:20:34,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:20:34,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:20:34,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,363 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:20:34,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:20:34,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:20:34,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:20:34,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (1/1) ... [2022-11-22 00:20:34,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:34,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:34,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:20:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047e4cb6-e1d7-4747-bc83-b3a73852c27b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:20:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 00:20:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 00:20:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 00:20:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 00:20:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 00:20:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 00:20:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 00:20:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 00:20:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-22 00:20:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-22 00:20:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:20:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:20:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-22 00:20:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-22 00:20:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 00:20:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 00:20:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-22 00:20:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-22 00:20:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:20:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:20:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:20:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:20:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-22 00:20:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-22 00:20:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-22 00:20:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-22 00:20:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:20:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:20:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 00:20:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 00:20:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 00:20:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 00:20:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:20:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:20:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 00:20:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 00:20:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-22 00:20:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-22 00:20:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 00:20:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 00:20:34,529 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-22 00:20:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-22 00:20:34,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-22 00:20:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-22 00:20:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:20:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:20:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:20:34,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:20:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:20:34,531 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:20:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:20:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:20:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 00:20:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:20:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:20:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:20:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:20:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-22 00:20:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-22 00:20:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:20:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 00:20:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 00:20:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-22 00:20:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-22 00:20:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-22 00:20:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-22 00:20:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 00:20:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:20:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:20:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-22 00:20:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-22 00:20:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 00:20:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 00:20:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 00:20:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 00:20:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:20:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-22 00:20:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-22 00:20:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:20:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:20:34,539 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 00:20:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 00:20:34,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:20:34,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:20:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:20:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-22 00:20:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-22 00:20:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:20:34,540 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:20:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:20:34,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_82 [2022-11-22 00:20:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_82 [2022-11-22 00:20:34,541 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-22 00:20:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-22 00:20:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-22 00:20:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-22 00:20:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:20:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:20:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-11-22 00:20:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-11-22 00:20:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 00:20:34,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 00:20:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:20:34,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:20:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:20:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:20:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-22 00:20:34,549 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-22 00:20:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 00:20:34,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 00:20:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:20:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:20:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-22 00:20:34,550 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-22 00:20:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-22 00:20:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-22 00:20:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-22 00:20:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-22 00:20:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:20:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:20:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:20:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:20:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:20:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:20:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:20:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 00:20:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 00:20:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 00:20:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 00:20:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-22 00:20:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-22 00:20:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:20:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:20:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:20:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:20:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:20:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:20:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 00:20:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 00:20:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:20:34,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:20:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:20:34,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:20:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-22 00:20:34,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-22 00:20:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:20:34,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:20:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-22 00:20:34,561 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-22 00:20:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:20:34,561 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:20:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:20:34,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:20:34,561 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:20:34,561 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:20:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 00:20:34,562 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 00:20:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-22 00:20:34,562 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-22 00:20:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-22 00:20:34,563 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-22 00:20:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:20:34,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:20:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 00:20:34,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 00:20:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 00:20:34,564 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 00:20:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-22 00:20:34,564 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-22 00:20:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-22 00:20:34,564 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-22 00:20:34,564 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 00:20:34,564 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 00:20:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-22 00:20:34,565 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-22 00:20:34,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:20:34,566 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-22 00:20:34,566 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-22 00:20:34,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:20:34,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:20:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:20:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-22 00:20:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-22 00:20:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-22 00:20:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-22 00:20:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-22 00:20:34,568 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-22 00:20:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-22 00:20:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-22 00:20:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-22 00:20:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-22 00:20:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:20:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:20:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:20:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:20:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-22 00:20:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-22 00:20:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-22 00:20:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-22 00:20:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-22 00:20:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-22 00:20:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-22 00:20:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-22 00:20:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-22 00:20:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-22 00:20:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 00:20:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 00:20:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:20:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:20:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:20:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:20:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:20:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:20:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 00:20:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 00:20:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-22 00:20:34,572 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-22 00:20:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-22 00:20:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-22 00:20:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:20:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:20:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:20:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 00:20:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 00:20:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 00:20:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 00:20:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:20:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-22 00:20:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-22 00:20:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-22 00:20:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-22 00:20:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-22 00:20:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-22 00:20:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:20:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-22 00:20:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-22 00:20:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 00:20:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 00:20:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 00:20:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 00:20:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:20:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:20:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:20:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:20:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-22 00:20:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-22 00:20:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-22 00:20:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-22 00:20:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 00:20:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 00:20:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-22 00:20:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-22 00:20:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 00:20:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 00:20:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-22 00:20:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-22 00:20:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-11-22 00:20:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-11-22 00:20:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:20:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:20:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:20:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:20:34,584 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-22 00:20:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-22 00:20:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_81 [2022-11-22 00:20:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_81 [2022-11-22 00:20:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-22 00:20:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-22 00:20:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-22 00:20:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-22 00:20:34,585 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-22 00:20:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-22 00:20:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:20:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:20:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-22 00:20:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-22 00:20:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 00:20:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 00:20:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-22 00:20:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-22 00:20:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:20:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:20:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-22 00:20:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-22 00:20:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:20:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-22 00:20:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-22 00:20:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-22 00:20:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-22 00:20:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-22 00:20:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-22 00:20:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:20:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:20:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 00:20:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 00:20:34,588 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-22 00:20:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-22 00:20:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 00:20:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 00:20:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-22 00:20:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-22 00:20:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-22 00:20:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-22 00:20:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 00:20:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 00:20:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 00:20:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 00:20:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-22 00:20:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-22 00:20:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-22 00:20:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-22 00:20:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:20:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:20:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-22 00:20:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-22 00:20:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-22 00:20:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-22 00:20:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-22 00:20:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-22 00:20:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-22 00:20:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-22 00:20:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-22 00:20:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-22 00:20:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:20:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:20:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:20:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-22 00:20:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-22 00:20:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:20:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:20:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 00:20:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 00:20:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-22 00:20:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-22 00:20:35,672 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:20:35,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:20:36,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:20:43,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:20:43,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:20:45,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:20:45,406 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:20:45,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:45 BoogieIcfgContainer [2022-11-22 00:20:45,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:20:45,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:20:45,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:20:45,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:20:45,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:20:27" (1/3) ... [2022-11-22 00:20:45,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a78cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:45, skipping insertion in model container [2022-11-22 00:20:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:33" (2/3) ... [2022-11-22 00:20:45,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a78cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:45, skipping insertion in model container [2022-11-22 00:20:45,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:45" (3/3) ... [2022-11-22 00:20:45,425 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 00:20:45,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:20:45,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:20:45,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:20:45,560 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d8f348c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:20:45,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:20:45,572 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) [2022-11-22 00:20:45,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-22 00:20:45,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:45,598 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:20:45,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:20:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1062705352, now seen corresponding path program 1 times [2022-11-22 00:20:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:45,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391371597] [2022-11-22 00:20:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 00:20:46,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:46,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391371597] [2022-11-22 00:20:46,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391371597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:46,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:46,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:20:46,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660253351] [2022-11-22 00:20:46,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:46,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:46,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:46,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:46,586 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) [2022-11-22 00:20:50,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:51,151 INFO L93 Difference]: Finished difference Result 6060 states and 8952 transitions. [2022-11-22 00:20:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:20:51,154 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 [2022-11-22 00:20:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:51,198 INFO L225 Difference]: With dead ends: 6060 [2022-11-22 00:20:51,198 INFO L226 Difference]: Without dead ends: 4002 [2022-11-22 00:20:51,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:51,217 INFO L413 NwaCegarLoop]: 3249 mSDtfsCounter, 2835 mSDsluCounter, 2537 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2835 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:51,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2835 Valid, 5786 Invalid, 847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 00:20:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-11-22 00:20:51,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3998. [2022-11-22 00:20:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2286 states have (on average 1.2979002624671916) internal successors, (2967), 2381 states have internal predecessors, (2967), 1399 states have call successors, (1399), 311 states have call predecessors, (1399), 310 states have return successors, (1395), 1363 states have call predecessors, (1395), 1395 states have call successors, (1395) [2022-11-22 00:20:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5761 transitions. [2022-11-22 00:20:51,561 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5761 transitions. Word has length 201 [2022-11-22 00:20:51,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:51,564 INFO L495 AbstractCegarLoop]: Abstraction has 3998 states and 5761 transitions. [2022-11-22 00:20:51,565 INFO L496 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) [2022-11-22 00:20:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5761 transitions. [2022-11-22 00:20:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-22 00:20:51,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:51,583 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:20:51,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:20:51,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:20:51,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:51,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1896645393, now seen corresponding path program 1 times [2022-11-22 00:20:51,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:51,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527592118] [2022-11-22 00:20:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:51,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 00:20:51,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:51,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527592118] [2022-11-22 00:20:51,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527592118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:51,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:51,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:20:51,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637747561] [2022-11-22 00:20:51,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:51,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:51,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:51,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:51,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:51,931 INFO L87 Difference]: Start difference. First operand 3998 states and 5761 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) [2022-11-22 00:20:56,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:20:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:56,770 INFO L93 Difference]: Finished difference Result 10936 states and 15695 transitions. [2022-11-22 00:20:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:20:56,771 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 [2022-11-22 00:20:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:56,826 INFO L225 Difference]: With dead ends: 10936 [2022-11-22 00:20:56,826 INFO L226 Difference]: Without dead ends: 6975 [2022-11-22 00:20:56,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:56,849 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2164 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:56,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 5582 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 00:20:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2022-11-22 00:20:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6941. [2022-11-22 00:20:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 3935 states have (on average 1.2884371029224904) internal successors, (5070), 4113 states have internal predecessors, (5070), 2432 states have call successors, (2432), 574 states have call predecessors, (2432), 571 states have return successors, (2430), 2357 states have call predecessors, (2430), 2428 states have call successors, (2430) [2022-11-22 00:20:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 9932 transitions. [2022-11-22 00:20:57,362 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 9932 transitions. Word has length 209 [2022-11-22 00:20:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:57,363 INFO L495 AbstractCegarLoop]: Abstraction has 6941 states and 9932 transitions. [2022-11-22 00:20:57,364 INFO L496 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) [2022-11-22 00:20:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 9932 transitions. [2022-11-22 00:20:57,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-22 00:20:57,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:57,371 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:20:57,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:20:57,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:20:57,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1396977628, now seen corresponding path program 1 times [2022-11-22 00:20:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:57,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317441947] [2022-11-22 00:20:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:57,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 00:20:57,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:57,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317441947] [2022-11-22 00:20:57,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317441947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:57,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:57,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:20:57,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672153966] [2022-11-22 00:20:57,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:57,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:20:57,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:57,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:20:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:20:57,703 INFO L87 Difference]: Start difference. First operand 6941 states and 9932 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) [2022-11-22 00:21:00,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:03,478 INFO L93 Difference]: Finished difference Result 20015 states and 28588 transitions. [2022-11-22 00:21:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:21:03,478 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 [2022-11-22 00:21:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:03,588 INFO L225 Difference]: With dead ends: 20015 [2022-11-22 00:21:03,588 INFO L226 Difference]: Without dead ends: 13111 [2022-11-22 00:21:03,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:21:03,639 INFO L413 NwaCegarLoop]: 3547 mSDtfsCounter, 2682 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 6041 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:03,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 6041 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 943 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 00:21:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13111 states. [2022-11-22 00:21:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13111 to 13073. [2022-11-22 00:21:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13073 states, 7379 states have (on average 1.2730722320097574) internal successors, (9394), 7709 states have internal predecessors, (9394), 4578 states have call successors, (4578), 1118 states have call predecessors, (4578), 1113 states have return successors, (4576), 4443 states have call predecessors, (4576), 4574 states have call successors, (4576) [2022-11-22 00:21:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18548 transitions. [2022-11-22 00:21:04,510 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18548 transitions. Word has length 212 [2022-11-22 00:21:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:04,512 INFO L495 AbstractCegarLoop]: Abstraction has 13073 states and 18548 transitions. [2022-11-22 00:21:04,513 INFO L496 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) [2022-11-22 00:21:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18548 transitions. [2022-11-22 00:21:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-22 00:21:04,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:04,518 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:21:04,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:21:04,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash -932789162, now seen corresponding path program 1 times [2022-11-22 00:21:04,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:04,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59830696] [2022-11-22 00:21:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 00:21:05,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59830696] [2022-11-22 00:21:05,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59830696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:05,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:05,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:21:05,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267003775] [2022-11-22 00:21:05,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:05,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:21:05,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:05,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:21:05,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:21:05,050 INFO L87 Difference]: Start difference. First operand 13073 states and 18548 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) [2022-11-22 00:21:07,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:09,868 INFO L93 Difference]: Finished difference Result 27277 states and 38575 transitions. [2022-11-22 00:21:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:21:09,869 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 [2022-11-22 00:21:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:09,944 INFO L225 Difference]: With dead ends: 27277 [2022-11-22 00:21:09,944 INFO L226 Difference]: Without dead ends: 14241 [2022-11-22 00:21:10,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:21:10,002 INFO L413 NwaCegarLoop]: 3748 mSDtfsCounter, 2495 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:10,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 6258 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 00:21:10,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-11-22 00:21:10,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 14205. [2022-11-22 00:21:10,899 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) [2022-11-22 00:21:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 19943 transitions. [2022-11-22 00:21:10,999 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 19943 transitions. Word has length 216 [2022-11-22 00:21:11,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:11,000 INFO L495 AbstractCegarLoop]: Abstraction has 14205 states and 19943 transitions. [2022-11-22 00:21:11,001 INFO L496 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) [2022-11-22 00:21:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 19943 transitions. [2022-11-22 00:21:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-22 00:21:11,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:11,008 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:21:11,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:21:11,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:11,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:11,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1884739036, now seen corresponding path program 1 times [2022-11-22 00:21:11,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:11,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801919353] [2022-11-22 00:21:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:11,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2022-11-22 00:21:11,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:11,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801919353] [2022-11-22 00:21:11,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801919353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:11,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:11,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:21:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583108661] [2022-11-22 00:21:11,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:11,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:21:11,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:21:11,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:21:11,345 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) [2022-11-22 00:21:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:15,184 INFO L93 Difference]: Finished difference Result 36813 states and 51817 transitions. [2022-11-22 00:21:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:21:15,185 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 [2022-11-22 00:21:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:15,298 INFO L225 Difference]: With dead ends: 36813 [2022-11-22 00:21:15,299 INFO L226 Difference]: Without dead ends: 22645 [2022-11-22 00:21:15,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:21:15,357 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 2811 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6033 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:15,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 6033 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 00:21:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22645 states. [2022-11-22 00:21:16,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22645 to 22599. [2022-11-22 00:21:16,615 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) [2022-11-22 00:21:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22599 states to 22599 states and 31780 transitions. [2022-11-22 00:21:16,728 INFO L78 Accepts]: Start accepts. Automaton has 22599 states and 31780 transitions. Word has length 232 [2022-11-22 00:21:16,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:16,729 INFO L495 AbstractCegarLoop]: Abstraction has 22599 states and 31780 transitions. [2022-11-22 00:21:16,729 INFO L496 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) [2022-11-22 00:21:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 22599 states and 31780 transitions. [2022-11-22 00:21:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-22 00:21:16,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:16,734 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:21:16,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:21:16,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:16,735 INFO L85 PathProgramCache]: Analyzing trace with hash 688075688, now seen corresponding path program 1 times [2022-11-22 00:21:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:16,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493286333] [2022-11-22 00:21:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 00:21:17,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:17,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493286333] [2022-11-22 00:21:17,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493286333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:17,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:17,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:21:17,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916458946] [2022-11-22 00:21:17,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:17,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:21:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:17,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:21:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:17,580 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) [2022-11-22 00:21:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:22,346 INFO L93 Difference]: Finished difference Result 22605 states and 31785 transitions. [2022-11-22 00:21:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:21:22,346 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 [2022-11-22 00:21:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:22,456 INFO L225 Difference]: With dead ends: 22605 [2022-11-22 00:21:22,456 INFO L226 Difference]: Without dead ends: 22603 [2022-11-22 00:21:22,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:22,468 INFO L413 NwaCegarLoop]: 2544 mSDtfsCounter, 2888 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 7614 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:22,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 7614 Invalid, 1258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 00:21:22,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22603 states. [2022-11-22 00:21:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22603 to 22603. [2022-11-22 00:21:23,974 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) [2022-11-22 00:21:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 31783 transitions. [2022-11-22 00:21:24,121 INFO L78 Accepts]: Start accepts. Automaton has 22603 states and 31783 transitions. Word has length 243 [2022-11-22 00:21:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:24,122 INFO L495 AbstractCegarLoop]: Abstraction has 22603 states and 31783 transitions. [2022-11-22 00:21:24,122 INFO L496 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) [2022-11-22 00:21:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22603 states and 31783 transitions. [2022-11-22 00:21:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 00:21:24,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:24,130 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:21:24,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:21:24,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1336221211, now seen corresponding path program 1 times [2022-11-22 00:21:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:24,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814407838] [2022-11-22 00:21:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:24,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 00:21:24,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:24,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814407838] [2022-11-22 00:21:24,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814407838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:24,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:24,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:21:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602501039] [2022-11-22 00:21:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:24,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:21:24,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:24,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:21:24,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:24,986 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) [2022-11-22 00:21:28,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:31,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:31,262 INFO L93 Difference]: Finished difference Result 22609 states and 31788 transitions. [2022-11-22 00:21:31,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:21:31,263 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 [2022-11-22 00:21:31,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:31,367 INFO L225 Difference]: With dead ends: 22609 [2022-11-22 00:21:31,368 INFO L226 Difference]: Without dead ends: 22607 [2022-11-22 00:21:31,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:31,381 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:31,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 00:21:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2022-11-22 00:21:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 22607. [2022-11-22 00:21:33,184 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) [2022-11-22 00:21:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 31786 transitions. [2022-11-22 00:21:33,291 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 31786 transitions. Word has length 248 [2022-11-22 00:21:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:33,292 INFO L495 AbstractCegarLoop]: Abstraction has 22607 states and 31786 transitions. [2022-11-22 00:21:33,292 INFO L496 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) [2022-11-22 00:21:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 31786 transitions. [2022-11-22 00:21:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-22 00:21:33,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:33,298 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:21:33,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:21:33,298 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:33,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:33,299 INFO L85 PathProgramCache]: Analyzing trace with hash -832042225, now seen corresponding path program 1 times [2022-11-22 00:21:33,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:33,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308159521] [2022-11-22 00:21:33,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:33,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2022-11-22 00:21:33,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308159521] [2022-11-22 00:21:33,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308159521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:33,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:33,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:21:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141186456] [2022-11-22 00:21:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:33,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:21:33,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:21:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:33,861 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) [2022-11-22 00:21:36,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:41,050 INFO L93 Difference]: Finished difference Result 31038 states and 43378 transitions. [2022-11-22 00:21:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:21:41,055 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 [2022-11-22 00:21:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:41,230 INFO L225 Difference]: With dead ends: 31038 [2022-11-22 00:21:41,231 INFO L226 Difference]: Without dead ends: 31036 [2022-11-22 00:21:41,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:41,250 INFO L413 NwaCegarLoop]: 3163 mSDtfsCounter, 1941 mSDsluCounter, 8796 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 11959 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:41,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 11959 Invalid, 1744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1741 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 00:21:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31036 states. [2022-11-22 00:21:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31036 to 31026. [2022-11-22 00:21:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31026 states, 17599 states have (on average 1.2586510597193021) internal successors, (22151), 18445 states have internal predecessors, (22151), 10611 states have call successors, (10611), 2833 states have call predecessors, (10611), 2813 states have return successors, (10607), 10210 states have call predecessors, (10607), 10603 states have call successors, (10607) [2022-11-22 00:21:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31026 states to 31026 states and 43369 transitions. [2022-11-22 00:21:43,251 INFO L78 Accepts]: Start accepts. Automaton has 31026 states and 43369 transitions. Word has length 257 [2022-11-22 00:21:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:43,251 INFO L495 AbstractCegarLoop]: Abstraction has 31026 states and 43369 transitions. [2022-11-22 00:21:43,252 INFO L496 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) [2022-11-22 00:21:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 31026 states and 43369 transitions. [2022-11-22 00:21:43,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-22 00:21:43,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:43,257 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 4, 3, 3, 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] [2022-11-22 00:21:43,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:21:43,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2085145624, now seen corresponding path program 1 times [2022-11-22 00:21:43,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:43,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440010341] [2022-11-22 00:21:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2022-11-22 00:21:44,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:44,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440010341] [2022-11-22 00:21:44,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440010341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:44,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:44,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:21:44,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76174169] [2022-11-22 00:21:44,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:44,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:21:44,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:44,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:21:44,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:44,011 INFO L87 Difference]: Start difference. First operand 31026 states and 43369 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 00:21:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:49,232 INFO L93 Difference]: Finished difference Result 31036 states and 43378 transitions. [2022-11-22 00:21:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:21:49,233 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 261 [2022-11-22 00:21:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:49,373 INFO L225 Difference]: With dead ends: 31036 [2022-11-22 00:21:49,373 INFO L226 Difference]: Without dead ends: 31034 [2022-11-22 00:21:49,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:49,394 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2882 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:49,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 00:21:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31034 states. [2022-11-22 00:21:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31034 to 31034. [2022-11-22 00:21:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31034 states, 17605 states have (on average 1.2585629082646976) internal successors, (22157), 18451 states have internal predecessors, (22157), 10611 states have call successors, (10611), 2835 states have call predecessors, (10611), 2815 states have return successors, (10607), 10210 states have call predecessors, (10607), 10603 states have call successors, (10607) [2022-11-22 00:21:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31034 states to 31034 states and 43375 transitions. [2022-11-22 00:21:51,306 INFO L78 Accepts]: Start accepts. Automaton has 31034 states and 43375 transitions. Word has length 261 [2022-11-22 00:21:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:21:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 31034 states and 43375 transitions. [2022-11-22 00:21:51,307 INFO L496 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 00:21:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 31034 states and 43375 transitions. [2022-11-22 00:21:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-22 00:21:51,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:21:51,315 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 4, 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] [2022-11-22 00:21:51,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:21:51,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:21:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:21:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash 502868712, now seen corresponding path program 1 times [2022-11-22 00:21:51,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:21:51,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218930104] [2022-11-22 00:21:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:21:51,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:21:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:21:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2022-11-22 00:21:51,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:21:51,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218930104] [2022-11-22 00:21:51,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218930104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:21:51,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:21:51,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:21:51,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488486622] [2022-11-22 00:21:51,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:21:51,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:21:51,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:21:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:21:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:21:51,824 INFO L87 Difference]: Start difference. First operand 31034 states and 43375 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, (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) [2022-11-22 00:21:54,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:21:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:21:58,402 INFO L93 Difference]: Finished difference Result 31044 states and 43384 transitions. [2022-11-22 00:21:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:21:58,403 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, (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 263 [2022-11-22 00:21:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:21:58,500 INFO L225 Difference]: With dead ends: 31044 [2022-11-22 00:21:58,500 INFO L226 Difference]: Without dead ends: 31042 [2022-11-22 00:21:58,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:21:58,513 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:21:58,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 00:21:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31042 states. [2022-11-22 00:22:00,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31042 to 31042. [2022-11-22 00:22:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31042 states, 17611 states have (on average 1.2584748168758162) internal successors, (22163), 18457 states have internal predecessors, (22163), 10611 states have call successors, (10611), 2837 states have call predecessors, (10611), 2817 states have return successors, (10607), 10210 states have call predecessors, (10607), 10603 states have call successors, (10607) [2022-11-22 00:22:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31042 states to 31042 states and 43381 transitions. [2022-11-22 00:22:00,399 INFO L78 Accepts]: Start accepts. Automaton has 31042 states and 43381 transitions. Word has length 263 [2022-11-22 00:22:00,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:00,400 INFO L495 AbstractCegarLoop]: Abstraction has 31042 states and 43381 transitions. [2022-11-22 00:22:00,400 INFO L496 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, (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) [2022-11-22 00:22:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31042 states and 43381 transitions. [2022-11-22 00:22:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-22 00:22:00,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:00,408 INFO L195 NwaCegarLoop]: 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] [2022-11-22 00:22:00,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:22:00,408 INFO L420 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)] === [2022-11-22 00:22:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:00,409 INFO L85 PathProgramCache]: Analyzing trace with hash -97832847, now seen corresponding path program 1 times [2022-11-22 00:22:00,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:00,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314356192] [2022-11-22 00:22:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-11-22 00:22:00,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:00,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314356192] [2022-11-22 00:22:00,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314356192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:00,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:00,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:00,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742178368] [2022-11-22 00:22:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:00,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:00,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:00,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:00,673 INFO L87 Difference]: Start difference. First operand 31042 states and 43381 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) [2022-11-22 00:22:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:06,523 INFO L93 Difference]: Finished difference Result 74954 states and 104839 transitions. [2022-11-22 00:22:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:06,528 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 [2022-11-22 00:22:06,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:06,724 INFO L225 Difference]: With dead ends: 74954 [2022-11-22 00:22:06,724 INFO L226 Difference]: Without dead ends: 44063 [2022-11-22 00:22:06,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:06,875 INFO L413 NwaCegarLoop]: 3814 mSDtfsCounter, 2490 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:06,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 6322 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 00:22:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44063 states. [2022-11-22 00:22:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44063 to 43953. [2022-11-22 00:22:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43953 states, 24996 states have (on average 1.257601216194591) internal successors, (31435), 26208 states have internal predecessors, (31435), 14950 states have call successors, (14950), 4038 states have call predecessors, (14950), 4004 states have return successors, (14948), 14360 states have call predecessors, (14948), 14942 states have call successors, (14948) [2022-11-22 00:22:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43953 states to 43953 states and 61333 transitions. [2022-11-22 00:22:09,951 INFO L78 Accepts]: Start accepts. Automaton has 43953 states and 61333 transitions. Word has length 263 [2022-11-22 00:22:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:09,952 INFO L495 AbstractCegarLoop]: Abstraction has 43953 states and 61333 transitions. [2022-11-22 00:22:09,952 INFO L496 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) [2022-11-22 00:22:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 43953 states and 61333 transitions. [2022-11-22 00:22:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-22 00:22:09,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:09,958 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 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] [2022-11-22 00:22:09,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:22:09,959 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:22:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash 377228763, now seen corresponding path program 1 times [2022-11-22 00:22:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:09,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796131444] [2022-11-22 00:22:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-11-22 00:22:10,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796131444] [2022-11-22 00:22:10,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796131444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:10,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:10,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:22:10,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917321327] [2022-11-22 00:22:10,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:10,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:22:10,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:22:10,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:22:10,443 INFO L87 Difference]: Start difference. First operand 43953 states and 61333 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 00:22:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:16,350 INFO L93 Difference]: Finished difference Result 43963 states and 61342 transitions. [2022-11-22 00:22:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:22:16,352 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2022-11-22 00:22:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:16,480 INFO L225 Difference]: With dead ends: 43963 [2022-11-22 00:22:16,480 INFO L226 Difference]: Without dead ends: 43961 [2022-11-22 00:22:16,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:22:16,497 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2883 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:16,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 7617 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 00:22:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43961 states.