./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-b5237d8 [2022-11-22 02:44:31,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:44:31,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:44:32,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:44:32,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:44:32,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:44:32,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:44:32,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:44:32,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:44:32,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:44:32,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:44:32,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:44:32,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:44:32,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:44:32,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:44:32,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:44:32,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:44:32,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:44:32,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:44:32,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:44:32,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:44:32,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:44:32,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:44:32,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:44:32,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:44:32,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:44:32,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:44:32,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:44:32,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:44:32,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:44:32,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:44:32,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:44:32,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:44:32,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:44:32,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:44:32,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:44:32,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:44:32,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:44:32,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:44:32,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:44:32,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:44:32,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:44:32,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:44:32,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:44:32,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:44:32,072 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:44:32,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:44:32,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:44:32,073 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:44:32,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:44:32,074 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:44:32,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:44:32,074 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:44:32,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:44:32,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:44:32,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:44:32,075 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:44:32,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:44:32,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:44:32,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:44:32,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:44:32,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:44:32,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:44:32,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:44:32,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:44:32,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:44:32,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:44:32,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:44:32,079 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:44:32,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:44:32,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:44:32,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:44:32,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:44:32,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:44:32,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:44:32,080 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_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-22 02:44:32,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:44:32,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:44:32,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:44:32,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:44:32,399 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:44:32,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-22 02:44:35,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:44:36,284 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:44:36,285 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-22 02:44:36,334 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/data/f015d993e/58ab1ea65dd3438abed8c4150297c349/FLAGed99a865f [2022-11-22 02:44:36,349 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/data/f015d993e/58ab1ea65dd3438abed8c4150297c349 [2022-11-22 02:44:36,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:44:36,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:44:36,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:44:36,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:44:36,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:44:36,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:44:36" (1/1) ... [2022-11-22 02:44:36,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241cf08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:36, skipping insertion in model container [2022-11-22 02:44:36,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:44:36" (1/1) ... [2022-11-22 02:44:36,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:44:36,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:44:39,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-22 02:44:39,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-22 02:44:39,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-22 02:44:39,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-22 02:44:39,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:44:39,589 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:44:40,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-22 02:44:40,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-22 02:44:40,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-22 02:44:40,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-22 02:44:40,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:44:40,194 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:44:40,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40 WrapperNode [2022-11-22 02:44:40,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:44:40,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:44:40,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:44:40,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:44:40,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,468 INFO L138 Inliner]: procedures = 427, calls = 1759, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4599 [2022-11-22 02:44:40,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:44:40,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:44:40,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:44:40,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:44:40,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:44:40,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:44:40,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:44:40,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:44:40,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (1/1) ... [2022-11-22 02:44:40,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:44:40,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:44:40,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:44:40,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b103cb9-c754-4fc3-9f63-acc40356fa07/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:44:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 02:44:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 02:44:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:44:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:44:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:44:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:44:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-22 02:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-22 02:44:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:44:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:44:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-22 02:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-22 02:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-22 02:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-22 02:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:44:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:44:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 02:44:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 02:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 02:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 02:44:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 02:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 02:44:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 02:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-22 02:44:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-22 02:44:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:44:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:44:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-22 02:44:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-22 02:44:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:44:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 02:44:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 02:44:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:44:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:44:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-22 02:44:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-22 02:44:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:44:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:44:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:44:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:44:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:44:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:44:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:44:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:44:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:44:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 02:44:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 02:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 02:44:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 02:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 02:44:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 02:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:44:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:44:40,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:44:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:44:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:44:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:44:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:44:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:44:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 02:44:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 02:44:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:44:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:44:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-22 02:44:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-22 02:44:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:44:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:44:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 02:44:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 02:44:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:44:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:44:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 02:44:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 02:44:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:44:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:44:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 02:44:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 02:44:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:44:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:44:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 02:44:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 02:44:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:44:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:44:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:44:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:44:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:44:40,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:44:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:44:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:44:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-22 02:44:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-22 02:44:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 02:44:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 02:44:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:44:40,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:44:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:44:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:44:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 02:44:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 02:44:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-22 02:44:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-22 02:44:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:44:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:44:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 02:44:40,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-22 02:44:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 02:44:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:44:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 02:44:40,876 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 02:44:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:44:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:44:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:44:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:44:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:44:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:44:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:44:40,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:44:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:44:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:44:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:44:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:44:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:44:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:44:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:44:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-22 02:44:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-22 02:44:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-22 02:44:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-22 02:44:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:44:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:44:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 02:44:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 02:44:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 02:44:40,879 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 02:44:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:44:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:44:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:44:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-22 02:44:40,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-22 02:44:41,684 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:44:41,686 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:44:42,603 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:44:44,851 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:44:45,021 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:44:45,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:44:45,902 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:44:45,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:44:45 BoogieIcfgContainer [2022-11-22 02:44:45,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:44:45,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:44:45,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:44:45,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:44:45,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:44:36" (1/3) ... [2022-11-22 02:44:45,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba88b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:44:45, skipping insertion in model container [2022-11-22 02:44:45,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:44:40" (2/3) ... [2022-11-22 02:44:45,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba88b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:44:45, skipping insertion in model container [2022-11-22 02:44:45,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:44:45" (3/3) ... [2022-11-22 02:44:45,916 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-22 02:44:45,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:44:45,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 02:44:46,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:44:46,018 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;@134c30fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:44:46,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:44:46,027 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) [2022-11-22 02:44:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 02:44:46,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:46,045 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] [2022-11-22 02:44:46,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2014449591, now seen corresponding path program 1 times [2022-11-22 02:44:46,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:46,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766016659] [2022-11-22 02:44:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 02:44:46,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:46,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766016659] [2022-11-22 02:44:46,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766016659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:46,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:46,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:44:46,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125788966] [2022-11-22 02:44:46,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:46,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:44:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:44:46,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:46,795 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) [2022-11-22 02:44:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:47,964 INFO L93 Difference]: Finished difference Result 3529 states and 5347 transitions. [2022-11-22 02:44:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:47,967 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 [2022-11-22 02:44:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:48,011 INFO L225 Difference]: With dead ends: 3529 [2022-11-22 02:44:48,012 INFO L226 Difference]: Without dead ends: 2322 [2022-11-22 02:44:48,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:48,034 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 1689 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:48,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 3559 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:44:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2022-11-22 02:44:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2318. [2022-11-22 02:44:48,372 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) [2022-11-22 02:44:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3444 transitions. [2022-11-22 02:44:48,397 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3444 transitions. Word has length 91 [2022-11-22 02:44:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:48,398 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3444 transitions. [2022-11-22 02:44:48,399 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) [2022-11-22 02:44:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3444 transitions. [2022-11-22 02:44:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-22 02:44:48,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:48,405 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] [2022-11-22 02:44:48,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:44:48,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash -501187409, now seen corresponding path program 1 times [2022-11-22 02:44:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:48,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489852441] [2022-11-22 02:44:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 02:44:48,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:48,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489852441] [2022-11-22 02:44:48,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489852441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:48,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:48,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:44:48,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493542121] [2022-11-22 02:44:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:48,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:44:48,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:48,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:44:48,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:48,782 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) [2022-11-22 02:44:49,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:49,893 INFO L93 Difference]: Finished difference Result 6550 states and 9706 transitions. [2022-11-22 02:44:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:49,894 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 [2022-11-22 02:44:49,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:49,924 INFO L225 Difference]: With dead ends: 6550 [2022-11-22 02:44:49,925 INFO L226 Difference]: Without dead ends: 4247 [2022-11-22 02:44:49,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:49,937 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 1489 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:49,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3581 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:44:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2022-11-22 02:44:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4215. [2022-11-22 02:44:50,290 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) [2022-11-22 02:44:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6235 transitions. [2022-11-22 02:44:50,329 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6235 transitions. Word has length 98 [2022-11-22 02:44:50,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:50,333 INFO L495 AbstractCegarLoop]: Abstraction has 4215 states and 6235 transitions. [2022-11-22 02:44:50,333 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) [2022-11-22 02:44:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6235 transitions. [2022-11-22 02:44:50,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:44:50,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:50,343 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] [2022-11-22 02:44:50,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:44:50,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1281641484, now seen corresponding path program 1 times [2022-11-22 02:44:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:50,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868100425] [2022-11-22 02:44:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:50,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 02:44:50,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868100425] [2022-11-22 02:44:50,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868100425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:50,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:50,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:44:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248621220] [2022-11-22 02:44:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:50,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:44:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:44:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:50,554 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) [2022-11-22 02:44:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:51,641 INFO L93 Difference]: Finished difference Result 8466 states and 12512 transitions. [2022-11-22 02:44:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:51,641 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 [2022-11-22 02:44:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:51,669 INFO L225 Difference]: With dead ends: 8466 [2022-11-22 02:44:51,670 INFO L226 Difference]: Without dead ends: 4266 [2022-11-22 02:44:51,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:51,692 INFO L413 NwaCegarLoop]: 1996 mSDtfsCounter, 1227 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:51,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3524 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:44:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-11-22 02:44:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4236. [2022-11-22 02:44:51,993 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) [2022-11-22 02:44:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4236 states to 4236 states and 6213 transitions. [2022-11-22 02:44:52,023 INFO L78 Accepts]: Start accepts. Automaton has 4236 states and 6213 transitions. Word has length 101 [2022-11-22 02:44:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:52,025 INFO L495 AbstractCegarLoop]: Abstraction has 4236 states and 6213 transitions. [2022-11-22 02:44:52,025 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) [2022-11-22 02:44:52,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4236 states and 6213 transitions. [2022-11-22 02:44:52,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:44:52,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:52,028 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] [2022-11-22 02:44:52,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:44:52,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:52,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2138140132, now seen corresponding path program 1 times [2022-11-22 02:44:52,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:52,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60836075] [2022-11-22 02:44:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:52,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-22 02:44:52,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:52,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60836075] [2022-11-22 02:44:52,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60836075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:52,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:52,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:44:52,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053701151] [2022-11-22 02:44:52,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:52,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:44:52,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:52,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:44:52,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:52,260 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) [2022-11-22 02:44:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:53,507 INFO L93 Difference]: Finished difference Result 11148 states and 16342 transitions. [2022-11-22 02:44:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:53,508 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 [2022-11-22 02:44:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:53,561 INFO L225 Difference]: With dead ends: 11148 [2022-11-22 02:44:53,561 INFO L226 Difference]: Without dead ends: 6927 [2022-11-22 02:44:53,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:53,586 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1491 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:53,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 3481 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:44:53,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2022-11-22 02:44:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 6896. [2022-11-22 02:44:54,162 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) [2022-11-22 02:44:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 10084 transitions. [2022-11-22 02:44:54,204 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 10084 transitions. Word has length 114 [2022-11-22 02:44:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:54,204 INFO L495 AbstractCegarLoop]: Abstraction has 6896 states and 10084 transitions. [2022-11-22 02:44:54,205 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) [2022-11-22 02:44:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 10084 transitions. [2022-11-22 02:44:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 02:44:54,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:54,209 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] [2022-11-22 02:44:54,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:44:54,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:54,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:54,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1723417334, now seen corresponding path program 1 times [2022-11-22 02:44:54,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:54,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353357770] [2022-11-22 02:44:54,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-22 02:44:54,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:54,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353357770] [2022-11-22 02:44:54,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353357770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:54,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:54,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:44:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111420969] [2022-11-22 02:44:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:54,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:44:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:44:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:54,505 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) [2022-11-22 02:44:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:55,809 INFO L93 Difference]: Finished difference Result 18916 states and 27596 transitions. [2022-11-22 02:44:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:55,810 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 [2022-11-22 02:44:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:55,906 INFO L225 Difference]: With dead ends: 18916 [2022-11-22 02:44:55,906 INFO L226 Difference]: Without dead ends: 12035 [2022-11-22 02:44:55,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:55,943 INFO L413 NwaCegarLoop]: 2279 mSDtfsCounter, 1709 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:55,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 3785 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:44:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2022-11-22 02:44:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 11994. [2022-11-22 02:44:56,808 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) [2022-11-22 02:44:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11994 states to 11994 states and 17473 transitions. [2022-11-22 02:44:56,869 INFO L78 Accepts]: Start accepts. Automaton has 11994 states and 17473 transitions. Word has length 124 [2022-11-22 02:44:56,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:44:56,871 INFO L495 AbstractCegarLoop]: Abstraction has 11994 states and 17473 transitions. [2022-11-22 02:44:56,871 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) [2022-11-22 02:44:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 11994 states and 17473 transitions. [2022-11-22 02:44:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-22 02:44:56,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:44:56,874 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] [2022-11-22 02:44:56,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:44:56,875 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:44:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:44:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2093414605, now seen corresponding path program 1 times [2022-11-22 02:44:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:44:56,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900711469] [2022-11-22 02:44:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:44:56,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:44:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:44:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-22 02:44:57,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:44:57,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900711469] [2022-11-22 02:44:57,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900711469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:57,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:44:57,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:44:57,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931160694] [2022-11-22 02:44:57,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:57,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:44:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:57,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:44:57,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:44:57,469 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) [2022-11-22 02:44:59,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:59,042 INFO L93 Difference]: Finished difference Result 12000 states and 17478 transitions. [2022-11-22 02:44:59,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:44:59,047 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 [2022-11-22 02:44:59,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:59,117 INFO L225 Difference]: With dead ends: 12000 [2022-11-22 02:44:59,117 INFO L226 Difference]: Without dead ends: 11998 [2022-11-22 02:44:59,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:44:59,128 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 1735 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:59,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 4670 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:44:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11998 states. [2022-11-22 02:45:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11998 to 11998. [2022-11-22 02:45:00,152 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) [2022-11-22 02:45:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 17476 transitions. [2022-11-22 02:45:00,212 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 17476 transitions. Word has length 133 [2022-11-22 02:45:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:00,213 INFO L495 AbstractCegarLoop]: Abstraction has 11998 states and 17476 transitions. [2022-11-22 02:45:00,214 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) [2022-11-22 02:45:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 17476 transitions. [2022-11-22 02:45:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-22 02:45:00,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:00,218 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:00,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:45:00,218 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:45:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:00,219 INFO L85 PathProgramCache]: Analyzing trace with hash -228065552, now seen corresponding path program 1 times [2022-11-22 02:45:00,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:00,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697449020] [2022-11-22 02:45:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:00,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-11-22 02:45:00,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:00,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697449020] [2022-11-22 02:45:00,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697449020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:00,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:00,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:45:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334597902] [2022-11-22 02:45:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:00,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:45:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:00,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:45:00,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:45:00,630 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) [2022-11-22 02:45:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:02,026 INFO L93 Difference]: Finished difference Result 12004 states and 17481 transitions. [2022-11-22 02:45:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:02,027 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 141 [2022-11-22 02:45:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:02,083 INFO L225 Difference]: With dead ends: 12004 [2022-11-22 02:45:02,084 INFO L226 Difference]: Without dead ends: 12002 [2022-11-22 02:45:02,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:02,093 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1729 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:02,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4673 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:45:02,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12002 states. [2022-11-22 02:45:03,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12002 to 12002. [2022-11-22 02:45:03,118 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) [2022-11-22 02:45:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 17479 transitions. [2022-11-22 02:45:03,175 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 17479 transitions. Word has length 141 [2022-11-22 02:45:03,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:03,176 INFO L495 AbstractCegarLoop]: Abstraction has 12002 states and 17479 transitions. [2022-11-22 02:45:03,176 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) [2022-11-22 02:45:03,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 17479 transitions. [2022-11-22 02:45:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 02:45:03,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:03,180 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] [2022-11-22 02:45:03,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:45:03,180 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)] === [2022-11-22 02:45:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1219929890, now seen corresponding path program 1 times [2022-11-22 02:45:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:03,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050359599] [2022-11-22 02:45:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-22 02:45:03,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:03,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050359599] [2022-11-22 02:45:03,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050359599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:03,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:03,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:45:03,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591676661] [2022-11-22 02:45:03,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:03,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:45:03,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:45:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:45:03,401 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) [2022-11-22 02:45:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:05,754 INFO L93 Difference]: Finished difference Result 35084 states and 51145 transitions. [2022-11-22 02:45:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:45:05,759 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 [2022-11-22 02:45:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:05,899 INFO L225 Difference]: With dead ends: 35084 [2022-11-22 02:45:05,900 INFO L226 Difference]: Without dead ends: 23097 [2022-11-22 02:45:05,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:45:05,961 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 1743 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:05,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3833 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:45:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23097 states. [2022-11-22 02:45:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23097 to 23029. [2022-11-22 02:45:08,126 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) [2022-11-22 02:45:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23029 states to 23029 states and 33577 transitions. [2022-11-22 02:45:08,247 INFO L78 Accepts]: Start accepts. Automaton has 23029 states and 33577 transitions. Word has length 142 [2022-11-22 02:45:08,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:08,247 INFO L495 AbstractCegarLoop]: Abstraction has 23029 states and 33577 transitions. [2022-11-22 02:45:08,248 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) [2022-11-22 02:45:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 23029 states and 33577 transitions. [2022-11-22 02:45:08,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 02:45:08,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:08,251 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:08,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:45:08,252 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:45:08,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash 463121915, now seen corresponding path program 1 times [2022-11-22 02:45:08,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:08,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109641925] [2022-11-22 02:45:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:08,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-11-22 02:45:08,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:08,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109641925] [2022-11-22 02:45:08,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109641925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:08,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:08,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:45:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356520052] [2022-11-22 02:45:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:08,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:45:08,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:45:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:45:08,634 INFO L87 Difference]: Start difference. First operand 23029 states and 33577 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, (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) [2022-11-22 02:45:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:10,655 INFO L93 Difference]: Finished difference Result 23035 states and 33582 transitions. [2022-11-22 02:45:10,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:10,656 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, (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 146 [2022-11-22 02:45:10,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:10,784 INFO L225 Difference]: With dead ends: 23035 [2022-11-22 02:45:10,785 INFO L226 Difference]: Without dead ends: 23033 [2022-11-22 02:45:10,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:10,804 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1729 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:10,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 4673 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:45:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23033 states. [2022-11-22 02:45:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23033 to 23033. [2022-11-22 02:45:12,928 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) [2022-11-22 02:45:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23033 states to 23033 states and 33580 transitions. [2022-11-22 02:45:13,076 INFO L78 Accepts]: Start accepts. Automaton has 23033 states and 33580 transitions. Word has length 146 [2022-11-22 02:45:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:13,077 INFO L495 AbstractCegarLoop]: Abstraction has 23033 states and 33580 transitions. [2022-11-22 02:45:13,077 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, (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) [2022-11-22 02:45:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 23033 states and 33580 transitions. [2022-11-22 02:45:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-22 02:45:13,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:13,082 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] [2022-11-22 02:45:13,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:45:13,082 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)] === [2022-11-22 02:45:13,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1174076967, now seen corresponding path program 1 times [2022-11-22 02:45:13,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:13,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78257334] [2022-11-22 02:45:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-22 02:45:13,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:13,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78257334] [2022-11-22 02:45:13,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78257334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:13,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:13,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:45:13,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360024944] [2022-11-22 02:45:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:13,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:45:13,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:13,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:45:13,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:45:13,362 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) [2022-11-22 02:45:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:16,652 INFO L93 Difference]: Finished difference Result 53857 states and 78576 transitions. [2022-11-22 02:45:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:45:16,653 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 [2022-11-22 02:45:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:16,820 INFO L225 Difference]: With dead ends: 53857 [2022-11-22 02:45:16,820 INFO L226 Difference]: Without dead ends: 30885 [2022-11-22 02:45:16,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:45:16,897 INFO L413 NwaCegarLoop]: 2297 mSDtfsCounter, 1231 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:16,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3815 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:45:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2022-11-22 02:45:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 30815. [2022-11-22 02:45:19,524 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) [2022-11-22 02:45:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30815 states to 30815 states and 44752 transitions. [2022-11-22 02:45:19,677 INFO L78 Accepts]: Start accepts. Automaton has 30815 states and 44752 transitions. Word has length 148 [2022-11-22 02:45:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:19,678 INFO L495 AbstractCegarLoop]: Abstraction has 30815 states and 44752 transitions. [2022-11-22 02:45:19,678 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) [2022-11-22 02:45:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 30815 states and 44752 transitions. [2022-11-22 02:45:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-22 02:45:19,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:19,681 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:19,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:45:19,682 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)] === [2022-11-22 02:45:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1801468528, now seen corresponding path program 1 times [2022-11-22 02:45:19,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:19,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609572914] [2022-11-22 02:45:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:19,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-22 02:45:20,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:20,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609572914] [2022-11-22 02:45:20,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609572914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:20,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:20,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:45:20,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379964955] [2022-11-22 02:45:20,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:45:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:45:20,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:45:20,300 INFO L87 Difference]: Start difference. First operand 30815 states and 44752 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, (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) [2022-11-22 02:45:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:22,951 INFO L93 Difference]: Finished difference Result 30821 states and 44757 transitions. [2022-11-22 02:45:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:22,952 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, (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 151 [2022-11-22 02:45:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:23,081 INFO L225 Difference]: With dead ends: 30821 [2022-11-22 02:45:23,082 INFO L226 Difference]: Without dead ends: 30819 [2022-11-22 02:45:23,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:23,097 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1729 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:23,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 4673 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:45:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30819 states. [2022-11-22 02:45:25,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30819 to 30819. [2022-11-22 02:45:25,872 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) [2022-11-22 02:45:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30819 states to 30819 states and 44755 transitions. [2022-11-22 02:45:26,016 INFO L78 Accepts]: Start accepts. Automaton has 30819 states and 44755 transitions. Word has length 151 [2022-11-22 02:45:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:26,017 INFO L495 AbstractCegarLoop]: Abstraction has 30819 states and 44755 transitions. [2022-11-22 02:45:26,017 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, (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) [2022-11-22 02:45:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 30819 states and 44755 transitions. [2022-11-22 02:45:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-22 02:45:26,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:26,020 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] [2022-11-22 02:45:26,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:45:26,021 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 02:45:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1800786547, now seen corresponding path program 1 times [2022-11-22 02:45:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:26,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103117971] [2022-11-22 02:45:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-11-22 02:45:26,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:26,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103117971] [2022-11-22 02:45:26,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103117971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:26,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:26,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:45:26,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90381482] [2022-11-22 02:45:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:26,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:45:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:45:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:45:26,356 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) [2022-11-22 02:45:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:29,138 INFO L93 Difference]: Finished difference Result 30825 states and 44760 transitions. [2022-11-22 02:45:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:29,138 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 [2022-11-22 02:45:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:29,273 INFO L225 Difference]: With dead ends: 30825 [2022-11-22 02:45:29,274 INFO L226 Difference]: Without dead ends: 30823 [2022-11-22 02:45:29,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:29,292 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1730 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:29,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 4673 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:45:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2022-11-22 02:45:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 30823. [2022-11-22 02:45:31,587 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) [2022-11-22 02:45:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30823 states to 30823 states and 44758 transitions. [2022-11-22 02:45:31,720 INFO L78 Accepts]: Start accepts. Automaton has 30823 states and 44758 transitions. Word has length 153 [2022-11-22 02:45:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:31,720 INFO L495 AbstractCegarLoop]: Abstraction has 30823 states and 44758 transitions. [2022-11-22 02:45:31,720 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) [2022-11-22 02:45:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 30823 states and 44758 transitions. [2022-11-22 02:45:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-22 02:45:31,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:31,725 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:31,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:45:31,725 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)] === [2022-11-22 02:45:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 527603371, now seen corresponding path program 1 times [2022-11-22 02:45:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:31,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777046383] [2022-11-22 02:45:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-22 02:45:32,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:32,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777046383] [2022-11-22 02:45:32,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777046383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:32,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:32,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:45:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622435054] [2022-11-22 02:45:32,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:32,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:45:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:45:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:45:32,143 INFO L87 Difference]: Start difference. First operand 30823 states and 44758 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:45:34,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:34,934 INFO L93 Difference]: Finished difference Result 30829 states and 44763 transitions. [2022-11-22 02:45:34,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:45:34,935 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-11-22 02:45:34,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:35,039 INFO L225 Difference]: With dead ends: 30829 [2022-11-22 02:45:35,040 INFO L226 Difference]: Without dead ends: 30827 [2022-11-22 02:45:35,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:45:35,054 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1729 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:35,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 4673 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:45:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30827 states.