./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS --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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- 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-8393723 [2022-11-19 08:14:45,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:14:45,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:14:45,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:14:45,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:14:45,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:14:45,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:14:45,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:14:45,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:14:45,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:14:45,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:14:45,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:14:45,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:14:45,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:14:45,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:14:45,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:14:45,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:14:45,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:14:45,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:14:45,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:14:45,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:14:45,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:14:45,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:14:45,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:14:45,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:14:45,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:14:45,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:14:45,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:14:45,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:14:45,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:14:45,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:14:45,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:14:45,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:14:45,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:14:45,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:14:45,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:14:45,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:14:45,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:14:45,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:14:45,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:14:45,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:14:45,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:14:45,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:14:45,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:14:45,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:14:45,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:14:45,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:14:45,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:14:45,536 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:14:45,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:14:45,537 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:14:45,537 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:14:45,538 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:14:45,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:14:45,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:14:45,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:14:45,539 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:14:45,539 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:14:45,539 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:14:45,540 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:14:45,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:14:45,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:14:45,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:14:45,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:14:45,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:14:45,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:14:45,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:14:45,542 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:14:45,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:14:45,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:14:45,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:14:45,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:14:45,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:14:45,545 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:14:45,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:14:45,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:14:45,545 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:14:45,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:14:45,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:14:45,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:14:45,546 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_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-19 08:14:45,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:14:45,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:14:45,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:14:45,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:14:45,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:14:45,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-19 08:14:45,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/data/653938e96/5b89b055732b4c4da31956efadb95580/FLAGb4b5ddeeb [2022-11-19 08:14:46,979 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:14:46,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-19 08:14:47,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/data/653938e96/5b89b055732b4c4da31956efadb95580/FLAGb4b5ddeeb [2022-11-19 08:14:47,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/data/653938e96/5b89b055732b4c4da31956efadb95580 [2022-11-19 08:14:47,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:14:47,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:14:47,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:14:47,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:14:47,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:14:47,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:14:47" (1/1) ... [2022-11-19 08:14:47,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b680299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:47, skipping insertion in model container [2022-11-19 08:14:47,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:14:47" (1/1) ... [2022-11-19 08:14:47,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:14:47,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:14:50,576 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-19 08:14:50,582 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-19 08:14:50,583 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-19 08:14:50,583 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-19 08:14:50,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:50,629 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:14:51,075 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-19 08:14:51,076 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-19 08:14:51,076 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-19 08:14:51,076 WARN L234 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_495331eb-ffa1-43be-b765-4357770d922f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-19 08:14:51,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:51,269 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:14:51,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51 WrapperNode [2022-11-19 08:14:51,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:14:51,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:51,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:14:51,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:14:51,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,548 INFO L138 Inliner]: procedures = 427, calls = 1759, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4697 [2022-11-19 08:14:51,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:51,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:14:51,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:14:51,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:14:51,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:14:51,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:14:51,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:14:51,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:14:51,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (1/1) ... [2022-11-19 08:14:51,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:14:51,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:51,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:14:51,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495331eb-ffa1-43be-b765-4357770d922f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:14:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 08:14:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 08:14:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:14:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:14:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:14:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-19 08:14:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-19 08:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:14:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:14:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:14:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-19 08:14:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-19 08:14:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-19 08:14:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-19 08:14:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:14:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:14:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:14:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:14:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 08:14:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 08:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-19 08:14:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-19 08:14:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:14:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:14:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-19 08:14:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-19 08:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:14:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-19 08:14:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-19 08:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:14:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:14:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:14:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:14:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:14:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-19 08:14:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-19 08:14:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:14:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:14:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:14:52,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:14:52,035 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:14:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:14:52,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:14:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:14:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:14:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:14:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:14:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:14:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:14:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:14:52,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:14:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:14:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:14:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:14:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:14:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:14:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:14:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:14:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:14:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:14:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:14:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:14:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:14:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:14:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:14:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 08:14:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 08:14:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:14:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:14:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-19 08:14:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-19 08:14:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:14:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:14:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:14:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:14:52,044 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:14:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:14:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:14:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:14:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:14:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:14:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:14:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:14:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:14:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:14:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 08:14:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 08:14:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:14:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:14:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:14:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:14:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:14:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:14:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:14:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:14:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-19 08:14:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-19 08:14:52,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 08:14:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 08:14:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:14:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:14:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:14:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:14:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:14:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:14:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-19 08:14:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-19 08:14:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:14:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:14:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-19 08:14:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-19 08:14:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:14:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-19 08:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-19 08:14:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:14:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 08:14:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 08:14:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:14:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 08:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 08:14:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:14:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:14:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:14:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:14:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:14:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:14:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:14:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:14:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:14:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-19 08:14:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-19 08:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-19 08:14:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-19 08:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:14:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:14:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 08:14:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 08:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:14:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:14:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:14:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:14:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-19 08:14:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-19 08:14:52,858 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:14:52,860 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:14:53,867 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:14:56,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:14:56,207 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:14:57,241 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:14:57,241 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:14:57,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:57 BoogieIcfgContainer [2022-11-19 08:14:57,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:14:57,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:14:57,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:14:57,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:14:57,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:14:47" (1/3) ... [2022-11-19 08:14:57,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b069d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:57, skipping insertion in model container [2022-11-19 08:14:57,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:51" (2/3) ... [2022-11-19 08:14:57,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b069d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:57, skipping insertion in model container [2022-11-19 08:14:57,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:57" (3/3) ... [2022-11-19 08:14:57,258 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-19 08:14:57,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:14:57,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:14:57,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:14:57,396 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;@6d29a751, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:14:57,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:14:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 1212 states, 670 states have (on average 1.3044776119402985) internal successors, (874), 695 states have internal predecessors, (874), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-11-19 08:14:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:14:57,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:57,430 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:57,430 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)] === [2022-11-19 08:14:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -501173493, now seen corresponding path program 1 times [2022-11-19 08:14:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:57,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796458497] [2022-11-19 08:14:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-19 08:14:58,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:58,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796458497] [2022-11-19 08:14:58,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796458497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:58,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:58,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:58,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354472973] [2022-11-19 08:14:58,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:58,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:58,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:58,151 INFO L87 Difference]: Start difference. First operand has 1212 states, 670 states have (on average 1.3044776119402985) internal successors, (874), 695 states have internal predecessors, (874), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-19 08:14:59,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:59,360 INFO L93 Difference]: Finished difference Result 3529 states and 5347 transitions. [2022-11-19 08:14:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2022-11-19 08:14:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:59,391 INFO L225 Difference]: With dead ends: 3529 [2022-11-19 08:14:59,391 INFO L226 Difference]: Without dead ends: 2322 [2022-11-19 08:14:59,485 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 [2022-11-19 08:14:59,491 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 1689 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:59,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 3541 Invalid, 475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:14:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2022-11-19 08:14:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2318. [2022-11-19 08:14:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1295 states have (on average 1.2972972972972974) internal successors, (1680), 1344 states have internal predecessors, (1680), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-11-19 08:14:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3444 transitions. [2022-11-19 08:14:59,767 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3444 transitions. Word has length 91 [2022-11-19 08:14:59,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:59,768 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3444 transitions. [2022-11-19 08:14:59,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-19 08:14:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3444 transitions. [2022-11-19 08:14:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-19 08:14:59,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:59,774 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:59,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:14:59,774 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)] === [2022-11-19 08:14:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1476103571, now seen corresponding path program 1 times [2022-11-19 08:14:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025016362] [2022-11-19 08:14:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-19 08:15:00,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:00,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025016362] [2022-11-19 08:15:00,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025016362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:00,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:00,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795552676] [2022-11-19 08:15:00,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:00,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:00,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:00,037 INFO L87 Difference]: Start difference. First operand 2318 states and 3444 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:15:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:01,048 INFO L93 Difference]: Finished difference Result 6550 states and 9706 transitions. [2022-11-19 08:15:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2022-11-19 08:15:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:01,083 INFO L225 Difference]: With dead ends: 6550 [2022-11-19 08:15:01,083 INFO L226 Difference]: Without dead ends: 4247 [2022-11-19 08:15:01,098 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 [2022-11-19 08:15:01,099 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 1489 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:01,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3487 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:15:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2022-11-19 08:15:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4215. [2022-11-19 08:15:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 2336 states have (on average 1.2846746575342465) internal successors, (3001), 2412 states have internal predecessors, (3001), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 263 states have return successors, (1621), 1568 states have call predecessors, (1621), 1609 states have call successors, (1621) [2022-11-19 08:15:01,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6235 transitions. [2022-11-19 08:15:01,515 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6235 transitions. Word has length 98 [2022-11-19 08:15:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:01,517 INFO L495 AbstractCegarLoop]: Abstraction has 4215 states and 6235 transitions. [2022-11-19 08:15:01,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:15:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6235 transitions. [2022-11-19 08:15:01,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 08:15:01,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:01,521 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:01,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:15:01,522 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)] === [2022-11-19 08:15:01,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash -567957160, now seen corresponding path program 1 times [2022-11-19 08:15:01,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:01,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205698523] [2022-11-19 08:15:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-19 08:15:01,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205698523] [2022-11-19 08:15:01,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205698523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:01,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:01,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:01,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999355141] [2022-11-19 08:15:01,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:01,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:01,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:01,808 INFO L87 Difference]: Start difference. First operand 4215 states and 6235 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-19 08:15:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:02,906 INFO L93 Difference]: Finished difference Result 8466 states and 12512 transitions. [2022-11-19 08:15:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:02,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-11-19 08:15:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:02,937 INFO L225 Difference]: With dead ends: 8466 [2022-11-19 08:15:02,937 INFO L226 Difference]: Without dead ends: 4266 [2022-11-19 08:15:02,957 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 [2022-11-19 08:15:02,961 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 1227 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:02,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3506 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:15:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-11-19 08:15:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4236. [2022-11-19 08:15:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4236 states, 2337 states have (on average 1.278990158322636) internal successors, (2989), 2413 states have internal predecessors, (2989), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 285 states have return successors, (1613), 1565 states have call predecessors, (1613), 1607 states have call successors, (1613) [2022-11-19 08:15:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4236 states to 4236 states and 6213 transitions. [2022-11-19 08:15:03,373 INFO L78 Accepts]: Start accepts. Automaton has 4236 states and 6213 transitions. Word has length 101 [2022-11-19 08:15:03,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:03,375 INFO L495 AbstractCegarLoop]: Abstraction has 4236 states and 6213 transitions. [2022-11-19 08:15:03,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-19 08:15:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4236 states and 6213 transitions. [2022-11-19 08:15:03,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-19 08:15:03,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:03,383 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:03,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:15:03,384 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)] === [2022-11-19 08:15:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1280833161, now seen corresponding path program 1 times [2022-11-19 08:15:03,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:03,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721691804] [2022-11-19 08:15:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:03,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:15:03,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:03,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721691804] [2022-11-19 08:15:03,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721691804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:03,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:03,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:03,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381587438] [2022-11-19 08:15:03,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:03,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:03,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:03,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:03,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:03,585 INFO L87 Difference]: Start difference. First operand 4236 states and 6213 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:15:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:04,805 INFO L93 Difference]: Finished difference Result 11148 states and 16342 transitions. [2022-11-19 08:15:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:04,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2022-11-19 08:15:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:04,849 INFO L225 Difference]: With dead ends: 11148 [2022-11-19 08:15:04,850 INFO L226 Difference]: Without dead ends: 6927 [2022-11-19 08:15:04,867 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 [2022-11-19 08:15:04,868 INFO L413 NwaCegarLoop]: 1945 mSDtfsCounter, 1491 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:04,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 3463 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:15:04,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2022-11-19 08:15:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 6896. [2022-11-19 08:15:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 3786 states have (on average 1.272054939249868) internal successors, (4816), 3923 states have internal predecessors, (4816), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 477 states have return successors, (2638), 2533 states have call predecessors, (2638), 2626 states have call successors, (2638) [2022-11-19 08:15:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 10084 transitions. [2022-11-19 08:15:05,344 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 10084 transitions. Word has length 114 [2022-11-19 08:15:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:05,344 INFO L495 AbstractCegarLoop]: Abstraction has 6896 states and 10084 transitions. [2022-11-19 08:15:05,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 08:15:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 10084 transitions. [2022-11-19 08:15:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-19 08:15:05,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:05,347 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 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] [2022-11-19 08:15:05,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:15:05,347 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)] === [2022-11-19 08:15:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash 23452127, now seen corresponding path program 1 times [2022-11-19 08:15:05,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:05,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279022527] [2022-11-19 08:15:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-19 08:15:05,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:05,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279022527] [2022-11-19 08:15:05,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279022527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:05,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:05,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:05,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320573171] [2022-11-19 08:15:05,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:05,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:05,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:05,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:05,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:05,737 INFO L87 Difference]: Start difference. First operand 6896 states and 10084 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 08:15:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:07,281 INFO L93 Difference]: Finished difference Result 18916 states and 27596 transitions. [2022-11-19 08:15:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:07,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-11-19 08:15:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:07,395 INFO L225 Difference]: With dead ends: 18916 [2022-11-19 08:15:07,396 INFO L226 Difference]: Without dead ends: 12035 [2022-11-19 08:15:07,442 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 [2022-11-19 08:15:07,443 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 1709 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:07,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 3765 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:15:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2022-11-19 08:15:08,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 11994. [2022-11-19 08:15:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11994 states, 6727 states have (on average 1.2797680987067044) internal successors, (8609), 7003 states have internal predecessors, (8609), 4420 states have call successors, (4420), 873 states have call predecessors, (4420), 844 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-19 08:15:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11994 states to 11994 states and 17473 transitions. [2022-11-19 08:15:08,504 INFO L78 Accepts]: Start accepts. Automaton has 11994 states and 17473 transitions. Word has length 124 [2022-11-19 08:15:08,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:08,506 INFO L495 AbstractCegarLoop]: Abstraction has 11994 states and 17473 transitions. [2022-11-19 08:15:08,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 08:15:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 11994 states and 17473 transitions. [2022-11-19 08:15:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-19 08:15:08,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:08,512 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:08,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:15:08,512 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)] === [2022-11-19 08:15:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1777504453, now seen corresponding path program 1 times [2022-11-19 08:15:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976379500] [2022-11-19 08:15:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-19 08:15:08,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:08,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976379500] [2022-11-19 08:15:08,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976379500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:08,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:08,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:08,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51259766] [2022-11-19 08:15:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:08,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:08,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:08,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:08,948 INFO L87 Difference]: Start difference. First operand 11994 states and 17473 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:15:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:10,363 INFO L93 Difference]: Finished difference Result 12000 states and 17478 transitions. [2022-11-19 08:15:10,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:10,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-11-19 08:15:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:10,433 INFO L225 Difference]: With dead ends: 12000 [2022-11-19 08:15:10,433 INFO L226 Difference]: Without dead ends: 11998 [2022-11-19 08:15:10,440 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 [2022-11-19 08:15:10,441 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 1735 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:10,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 4643 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:15:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11998 states. [2022-11-19 08:15:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11998 to 11998. [2022-11-19 08:15:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11998 states, 6730 states have (on average 1.2796433878157503) internal successors, (8612), 7006 states have internal predecessors, (8612), 4420 states have call successors, (4420), 874 states have call predecessors, (4420), 845 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-19 08:15:11,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 17476 transitions. [2022-11-19 08:15:11,506 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 17476 transitions. Word has length 133 [2022-11-19 08:15:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:11,507 INFO L495 AbstractCegarLoop]: Abstraction has 11998 states and 17476 transitions. [2022-11-19 08:15:11,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:15:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 17476 transitions. [2022-11-19 08:15:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-19 08:15:11,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:11,512 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:11,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:15:11,512 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)] === [2022-11-19 08:15:11,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:11,513 INFO L85 PathProgramCache]: Analyzing trace with hash -775862102, now seen corresponding path program 1 times [2022-11-19 08:15:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:11,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23399085] [2022-11-19 08:15:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:11,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-19 08:15:11,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23399085] [2022-11-19 08:15:11,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23399085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:11,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:11,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175496068] [2022-11-19 08:15:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:11,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:11,920 INFO L87 Difference]: Start difference. First operand 11998 states and 17476 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:15:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:13,662 INFO L93 Difference]: Finished difference Result 12004 states and 17481 transitions. [2022-11-19 08:15:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:13,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2022-11-19 08:15:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:13,736 INFO L225 Difference]: With dead ends: 12004 [2022-11-19 08:15:13,736 INFO L226 Difference]: Without dead ends: 12002 [2022-11-19 08:15:13,743 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 [2022-11-19 08:15:13,746 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1729 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:13,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4646 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:15:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12002 states. [2022-11-19 08:15:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12002 to 12002. [2022-11-19 08:15:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12002 states, 6733 states have (on average 1.2795187880588148) internal successors, (8615), 7009 states have internal predecessors, (8615), 4420 states have call successors, (4420), 875 states have call predecessors, (4420), 846 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-19 08:15:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 17479 transitions. [2022-11-19 08:15:15,364 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 17479 transitions. Word has length 142 [2022-11-19 08:15:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:15,364 INFO L495 AbstractCegarLoop]: Abstraction has 12002 states and 17479 transitions. [2022-11-19 08:15:15,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:15:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 17479 transitions. [2022-11-19 08:15:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-19 08:15:15,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:15,368 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 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] [2022-11-19 08:15:15,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:15:15,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-11-19 08:15:15,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:15,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1441124940, now seen corresponding path program 1 times [2022-11-19 08:15:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:15,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824519087] [2022-11-19 08:15:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:15,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-19 08:15:15,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:15,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824519087] [2022-11-19 08:15:15,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824519087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:15,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:15,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:15,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869738331] [2022-11-19 08:15:15,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:15,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:15,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:15,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:15,571 INFO L87 Difference]: Start difference. First operand 12002 states and 17479 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 08:15:17,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:17,773 INFO L93 Difference]: Finished difference Result 35084 states and 51145 transitions. [2022-11-19 08:15:17,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2022-11-19 08:15:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:17,901 INFO L225 Difference]: With dead ends: 35084 [2022-11-19 08:15:17,902 INFO L226 Difference]: Without dead ends: 23097 [2022-11-19 08:15:17,957 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 [2022-11-19 08:15:17,958 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 1743 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:17,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3780 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:15:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23097 states. [2022-11-19 08:15:20,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23097 to 23029. [2022-11-19 08:15:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23029 states, 12925 states have (on average 1.281624758220503) internal successors, (16565), 13495 states have internal predecessors, (16565), 8480 states have call successors, (8480), 1678 states have call predecessors, (8480), 1621 states have return successors, (8532), 8039 states have call predecessors, (8532), 8476 states have call successors, (8532) [2022-11-19 08:15:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23029 states to 23029 states and 33577 transitions. [2022-11-19 08:15:20,426 INFO L78 Accepts]: Start accepts. Automaton has 23029 states and 33577 transitions. Word has length 142 [2022-11-19 08:15:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:20,427 INFO L495 AbstractCegarLoop]: Abstraction has 23029 states and 33577 transitions. [2022-11-19 08:15:20,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 08:15:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 23029 states and 33577 transitions. [2022-11-19 08:15:20,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-19 08:15:20,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:20,431 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:20,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:15:20,431 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)] === [2022-11-19 08:15:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash -516607781, now seen corresponding path program 1 times [2022-11-19 08:15:20,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:20,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349318732] [2022-11-19 08:15:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-19 08:15:20,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:20,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349318732] [2022-11-19 08:15:20,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349318732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:20,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:20,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:20,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488327720] [2022-11-19 08:15:20,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:20,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:20,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:20,786 INFO L87 Difference]: Start difference. First operand 23029 states and 33577 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:15:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:23,180 INFO L93 Difference]: Finished difference Result 23035 states and 33582 transitions. [2022-11-19 08:15:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2022-11-19 08:15:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:23,283 INFO L225 Difference]: With dead ends: 23035 [2022-11-19 08:15:23,284 INFO L226 Difference]: Without dead ends: 23033 [2022-11-19 08:15:23,293 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 [2022-11-19 08:15:23,295 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1730 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:23,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4646 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:15:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23033 states. [2022-11-19 08:15:25,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23033 to 23033. [2022-11-19 08:15:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23033 states, 12928 states have (on average 1.2815594059405941) internal successors, (16568), 13498 states have internal predecessors, (16568), 8480 states have call successors, (8480), 1679 states have call predecessors, (8480), 1622 states have return successors, (8532), 8039 states have call predecessors, (8532), 8476 states have call successors, (8532) [2022-11-19 08:15:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23033 states to 23033 states and 33580 transitions. [2022-11-19 08:15:25,736 INFO L78 Accepts]: Start accepts. Automaton has 23033 states and 33580 transitions. Word has length 143 [2022-11-19 08:15:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:25,736 INFO L495 AbstractCegarLoop]: Abstraction has 23033 states and 33580 transitions. [2022-11-19 08:15:25,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:15:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 23033 states and 33580 transitions. [2022-11-19 08:15:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 08:15:25,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:25,740 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-19 08:15:25,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:15:25,740 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2022-11-19 08:15:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:25,741 INFO L85 PathProgramCache]: Analyzing trace with hash 925289540, now seen corresponding path program 1 times [2022-11-19 08:15:25,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:25,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685096398] [2022-11-19 08:15:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:25,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-19 08:15:25,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:25,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685096398] [2022-11-19 08:15:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685096398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136098862] [2022-11-19 08:15:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:25,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:25,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:25,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:25,990 INFO L87 Difference]: Start difference. First operand 23033 states and 33580 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 08:15:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:29,475 INFO L93 Difference]: Finished difference Result 53857 states and 78576 transitions. [2022-11-19 08:15:29,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:29,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2022-11-19 08:15:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:29,639 INFO L225 Difference]: With dead ends: 53857 [2022-11-19 08:15:29,639 INFO L226 Difference]: Without dead ends: 30885 [2022-11-19 08:15:29,718 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 [2022-11-19 08:15:29,719 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 1231 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3792 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:29,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3792 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:15:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2022-11-19 08:15:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 30815. [2022-11-19 08:15:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30815 states, 17390 states have (on average 1.2823461759631973) internal successors, (22300), 18192 states have internal predecessors, (22300), 11200 states have call successors, (11200), 2295 states have call predecessors, (11200), 2222 states have return successors, (11252), 10579 states have call predecessors, (11252), 11196 states have call successors, (11252) [2022-11-19 08:15:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30815 states to 30815 states and 44752 transitions. [2022-11-19 08:15:32,141 INFO L78 Accepts]: Start accepts. Automaton has 30815 states and 44752 transitions. Word has length 148 [2022-11-19 08:15:32,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:32,142 INFO L495 AbstractCegarLoop]: Abstraction has 30815 states and 44752 transitions. [2022-11-19 08:15:32,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 08:15:32,143 INFO L276 IsEmpty]: Start isEmpty. Operand 30815 states and 44752 transitions. [2022-11-19 08:15:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 08:15:32,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:32,147 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:32,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:15:32,148 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:32,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:32,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1675112930, now seen corresponding path program 1 times [2022-11-19 08:15:32,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:32,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118629297] [2022-11-19 08:15:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:32,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-19 08:15:32,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:32,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118629297] [2022-11-19 08:15:32,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118629297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:32,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:32,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:32,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530567057] [2022-11-19 08:15:32,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:32,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:32,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:32,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:32,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:32,690 INFO L87 Difference]: Start difference. First operand 30815 states and 44752 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:15:34,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:34,848 INFO L93 Difference]: Finished difference Result 30821 states and 44757 transitions. [2022-11-19 08:15:34,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:34,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2022-11-19 08:15:34,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:35,009 INFO L225 Difference]: With dead ends: 30821 [2022-11-19 08:15:35,010 INFO L226 Difference]: Without dead ends: 30819 [2022-11-19 08:15:35,028 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 [2022-11-19 08:15:35,029 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1730 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:35,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 4646 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:15:35,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30819 states. [2022-11-19 08:15:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30819 to 30819. [2022-11-19 08:15:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30819 states, 17393 states have (on average 1.2822974759960903) internal successors, (22303), 18195 states have internal predecessors, (22303), 11200 states have call successors, (11200), 2296 states have call predecessors, (11200), 2223 states have return successors, (11252), 10579 states have call predecessors, (11252), 11196 states have call successors, (11252) [2022-11-19 08:15:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30819 states to 30819 states and 44755 transitions. [2022-11-19 08:15:37,773 INFO L78 Accepts]: Start accepts. Automaton has 30819 states and 44755 transitions. Word has length 148 [2022-11-19 08:15:37,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:37,774 INFO L495 AbstractCegarLoop]: Abstraction has 30819 states and 44755 transitions. [2022-11-19 08:15:37,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:15:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 30819 states and 44755 transitions. [2022-11-19 08:15:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-19 08:15:37,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:37,778 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-19 08:15:37,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:15:37,779 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)] === [2022-11-19 08:15:37,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1136728699, now seen corresponding path program 1 times [2022-11-19 08:15:37,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:37,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660147619] [2022-11-19 08:15:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-11-19 08:15:38,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:38,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660147619] [2022-11-19 08:15:38,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660147619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:38,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:38,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:38,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041434826] [2022-11-19 08:15:38,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:38,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:38,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:38,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:38,118 INFO L87 Difference]: Start difference. First operand 30819 states and 44755 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:15:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:40,839 INFO L93 Difference]: Finished difference Result 30825 states and 44760 transitions. [2022-11-19 08:15:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:40,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2022-11-19 08:15:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:40,972 INFO L225 Difference]: With dead ends: 30825 [2022-11-19 08:15:40,972 INFO L226 Difference]: Without dead ends: 30823 [2022-11-19 08:15:40,988 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 [2022-11-19 08:15:40,988 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1730 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:40,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 4646 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:15:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2022-11-19 08:15:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 30823. [2022-11-19 08:15:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30823 states, 17396 states have (on average 1.282248792825937) internal successors, (22306), 18198 states have internal predecessors, (22306), 11200 states have call successors, (11200), 2297 states have call predecessors, (11200), 2224 states have return successors, (11252), 10579 states have call predecessors, (11252), 11196 states have call successors, (11252) [2022-11-19 08:15:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30823 states to 30823 states and 44758 transitions. [2022-11-19 08:15:43,242 INFO L78 Accepts]: Start accepts. Automaton has 30823 states and 44758 transitions. Word has length 153 [2022-11-19 08:15:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:43,243 INFO L495 AbstractCegarLoop]: Abstraction has 30823 states and 44758 transitions. [2022-11-19 08:15:43,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:15:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 30823 states and 44758 transitions. [2022-11-19 08:15:43,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-19 08:15:43,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:43,246 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-19 08:15:43,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:15:43,247 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1025042434, now seen corresponding path program 1 times [2022-11-19 08:15:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:43,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970509451] [2022-11-19 08:15:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:43,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-11-19 08:15:43,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970509451] [2022-11-19 08:15:43,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970509451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:43,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:43,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823137766] [2022-11-19 08:15:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:43,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:43,555 INFO L87 Difference]: Start difference. First operand 30823 states and 44758 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:15:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:46,574 INFO L93 Difference]: Finished difference Result 30829 states and 44763 transitions. [2022-11-19 08:15:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:46,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2022-11-19 08:15:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:46,683 INFO L225 Difference]: With dead ends: 30829 [2022-11-19 08:15:46,683 INFO L226 Difference]: Without dead ends: 30827 [2022-11-19 08:15:46,699 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 [2022-11-19 08:15:46,700 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1730 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:46,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 4646 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:15:46,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30827 states.