./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb66474e5e41b459479f6d5b414154fee660232663143da1bc936d3f2a0049ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:46:16,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:46:16,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:46:16,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:46:16,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:46:16,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:46:16,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:46:16,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:46:16,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:46:16,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:46:16,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:46:16,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:46:16,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:46:16,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:46:16,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:46:16,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:46:16,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:46:16,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:46:16,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:46:16,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:46:16,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:46:16,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:46:16,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:46:16,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:46:16,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:46:16,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:46:16,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:46:16,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:46:16,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:46:16,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:46:16,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:46:16,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:46:16,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:46:16,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:46:16,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:46:16,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:46:16,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:46:16,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:46:16,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:46:16,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:46:16,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:46:16,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:46:16,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:46:16,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:46:16,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:46:16,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:46:16,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:46:16,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:46:16,600 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:46:16,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:46:16,600 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:46:16,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:46:16,601 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:46:16,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:46:16,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:46:16,601 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:46:16,602 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:46:16,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:46:16,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:46:16,602 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:46:16,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:46:16,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:46:16,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:46:16,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:46:16,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:46:16,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:46:16,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:46:16,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:46:16,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:46:16,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:46:16,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:46:16,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:46:16,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:46:16,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:46:16,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:46:16,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:46:16,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:46:16,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:46:16,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:46:16,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:46:16,608 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb66474e5e41b459479f6d5b414154fee660232663143da1bc936d3f2a0049ad [2021-11-21 01:46:16,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:46:16,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:46:16,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:46:16,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:46:16,962 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:46:16,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:46:17,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/data/b608668c5/bb468a36a2f34cb599ed0464b24fa0c7/FLAGe57e6ee69 [2021-11-21 01:46:18,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:46:18,319 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:46:18,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/data/b608668c5/bb468a36a2f34cb599ed0464b24fa0c7/FLAGe57e6ee69 [2021-11-21 01:46:18,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/data/b608668c5/bb468a36a2f34cb599ed0464b24fa0c7 [2021-11-21 01:46:18,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:46:18,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:46:18,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:46:18,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:46:18,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:46:18,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:46:18" (1/1) ... [2021-11-21 01:46:18,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cece50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:18, skipping insertion in model container [2021-11-21 01:46:18,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:46:18" (1/1) ... [2021-11-21 01:46:18,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:46:18,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:46:29,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[947955,947968] [2021-11-21 01:46:29,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948124,948137] [2021-11-21 01:46:29,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948291,948304] [2021-11-21 01:46:29,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948459,948472] [2021-11-21 01:46:29,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:46:29,442 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:46:30,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[947955,947968] [2021-11-21 01:46:30,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948124,948137] [2021-11-21 01:46:30,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948291,948304] [2021-11-21 01:46:30,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[948459,948472] [2021-11-21 01:46:30,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:46:31,912 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:46:31,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31 WrapperNode [2021-11-21 01:46:31,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:46:31,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:46:31,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:46:31,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:46:31,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:32,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:33,527 INFO L137 Inliner]: procedures = 870, calls = 16491, calls flagged for inlining = 430, calls inlined = 363, statements flattened = 28933 [2021-11-21 01:46:33,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:46:33,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:46:33,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:46:33,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:46:33,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:33,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:33,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:33,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:34,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:34,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:34,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:34,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:46:34,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:46:34,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:46:34,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:46:34,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (1/1) ... [2021-11-21 01:46:34,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:46:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:46:34,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:46:34,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b709383b-9018-4e16-950f-0d4350406a86/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:46:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-21 01:46:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-21 01:46:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:46:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:46:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-21 01:46:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-21 01:46:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-21 01:46:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-21 01:46:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 01:46:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 01:46:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-21 01:46:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-21 01:46:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-21 01:46:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-21 01:46:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:46:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:46:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-21 01:46:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-21 01:46:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:46:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:46:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-21 01:46:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-21 01:46:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:46:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:46:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:46:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:46:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-21 01:46:35,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-21 01:46:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:46:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:46:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-21 01:46:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-21 01:46:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-21 01:46:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-21 01:46:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-21 01:46:35,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-21 01:46:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:46:35,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:46:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:46:35,025 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:46:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:46:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:46:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:46:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:46:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-21 01:46:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-21 01:46:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-21 01:46:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-21 01:46:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-21 01:46:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-21 01:46:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:46:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:46:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:46:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:46:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:46:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:46:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-21 01:46:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-21 01:46:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-21 01:46:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-21 01:46:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:46:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:46:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-21 01:46:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-21 01:46:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:46:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:46:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-21 01:46:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-21 01:46:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:46:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:46:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-21 01:46:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-21 01:46:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:46:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-21 01:46:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-21 01:46:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-21 01:46:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-21 01:46:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-21 01:46:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-21 01:46:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:46:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:46:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:46:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:46:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-21 01:46:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-21 01:46:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:46:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:46:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-21 01:46:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-21 01:46:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-21 01:46:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-21 01:46:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-21 01:46:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-21 01:46:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:46:35,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-21 01:46:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:46:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:46:35,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:46:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:46:35,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:46:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-21 01:46:35,052 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-21 01:46:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:46:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:46:35,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:46:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:46:35,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:46:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:46:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-21 01:46:35,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-21 01:46:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:46:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 01:46:35,054 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 01:46:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-21 01:46:35,054 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-21 01:46:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:46:35,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:46:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-21 01:46:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-21 01:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:46:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-21 01:46:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-21 01:46:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:46:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:46:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-21 01:46:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-21 01:46:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-21 01:46:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-21 01:46:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:46:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:46:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-21 01:46:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-21 01:46:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-21 01:46:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-21 01:46:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-21 01:46:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-21 01:46:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:46:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:46:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-21 01:46:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-21 01:46:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-21 01:46:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-21 01:46:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-21 01:46:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-21 01:46:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-21 01:46:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-21 01:46:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:46:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:46:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-21 01:46:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-21 01:46:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:46:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:46:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:46:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-21 01:46:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-21 01:46:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:46:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:46:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:46:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:46:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:46:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-21 01:46:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-21 01:46:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:46:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:46:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 01:46:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 01:46:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:46:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:46:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-21 01:46:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-21 01:46:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-21 01:46:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-21 01:46:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-21 01:46:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-21 01:46:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:46:35,079 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:46:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-21 01:46:35,079 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-21 01:46:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 01:46:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 01:46:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:46:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:46:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:46:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:46:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:46:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-21 01:46:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-21 01:46:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:46:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 01:46:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 01:46:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-21 01:46:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-21 01:46:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-21 01:46:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-21 01:46:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-21 01:46:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-21 01:46:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-21 01:46:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-21 01:46:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:46:35,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:46:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-21 01:46:35,083 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-21 01:46:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:46:35,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:46:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:46:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:46:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-21 01:46:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-21 01:46:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-21 01:46:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-21 01:46:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-21 01:46:35,084 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-21 01:46:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-21 01:46:35,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-21 01:46:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-21 01:46:35,085 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-21 01:46:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:46:35,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:46:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-21 01:46:35,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-21 01:46:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-21 01:46:35,086 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-21 01:46:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 01:46:35,086 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 01:46:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:46:35,087 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:46:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:46:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-21 01:46:35,087 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-21 01:46:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:46:35,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:46:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2021-11-21 01:46:35,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2021-11-21 01:46:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-21 01:46:35,088 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-21 01:46:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:46:35,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:46:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-21 01:46:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-21 01:46:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-21 01:46:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-21 01:46:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-21 01:46:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-21 01:46:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-21 01:46:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-21 01:46:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-21 01:46:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-21 01:46:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:46:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:46:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-21 01:46:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-21 01:46:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:46:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:46:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 01:46:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 01:46:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 01:46:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-21 01:46:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-21 01:46:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-21 01:46:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-21 01:46:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:46:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:46:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2021-11-21 01:46:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2021-11-21 01:46:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:46:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:46:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2021-11-21 01:46:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2021-11-21 01:46:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 01:46:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 01:46:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-21 01:46:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-21 01:46:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:46:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:46:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-21 01:46:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-21 01:46:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-21 01:46:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-21 01:46:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-21 01:46:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-21 01:46:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:46:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:46:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-21 01:46:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-21 01:46:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:46:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:46:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:46:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:46:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-21 01:46:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-21 01:46:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-21 01:46:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-21 01:46:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-21 01:46:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-21 01:46:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2021-11-21 01:46:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2021-11-21 01:46:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-21 01:46:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-21 01:46:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-21 01:46:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-21 01:46:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:46:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:46:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:46:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:46:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:46:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:46:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:46:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:46:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:46:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:46:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:46:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-21 01:46:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-21 01:46:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-21 01:46:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-21 01:46:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-21 01:46:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-21 01:46:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-21 01:46:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-21 01:46:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-21 01:46:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-21 01:46:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:46:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:46:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:46:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-21 01:46:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-21 01:46:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-21 01:46:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-21 01:46:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:46:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:46:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:46:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-21 01:46:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-21 01:46:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:46:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:46:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-21 01:46:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-21 01:46:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-21 01:46:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-21 01:46:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:46:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:46:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:46:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:46:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-21 01:46:35,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-21 01:46:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-21 01:46:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-21 01:46:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 01:46:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 01:46:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-21 01:46:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-21 01:46:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-21 01:46:35,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-21 01:46:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 01:46:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 01:46:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:46:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:46:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:46:35,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:46:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-21 01:46:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-21 01:46:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-21 01:46:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-21 01:46:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-21 01:46:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-21 01:46:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-21 01:46:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-21 01:46:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-21 01:46:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-21 01:46:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 01:46:35,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 01:46:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:46:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:46:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:46:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:46:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-21 01:46:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-21 01:46:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:46:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:46:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-21 01:46:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-21 01:46:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-21 01:46:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-21 01:46:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:46:35,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:46:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-21 01:46:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-21 01:46:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-21 01:46:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-21 01:46:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-21 01:46:35,127 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-21 01:46:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:46:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:46:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-21 01:46:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-21 01:46:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:46:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:46:35,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:46:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:46:35,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:46:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 01:46:35,204 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 01:46:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:46:35,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:46:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:46:35,204 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:46:35,204 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:46:35,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:46:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-21 01:46:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-21 01:46:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:46:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:46:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 01:46:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 01:46:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-21 01:46:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-21 01:46:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:46:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:46:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-21 01:46:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-21 01:46:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-21 01:46:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-21 01:46:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-21 01:46:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-21 01:46:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:46:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:46:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 01:46:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:46:35,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:46:35,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 01:46:35,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 01:46:35,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:46:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-21 01:46:35,208 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-21 01:46:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-21 01:46:35,208 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-21 01:46:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-21 01:46:35,208 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-21 01:46:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:46:35,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:46:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:46:35,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:46:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:46:35,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:46:35,209 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-21 01:46:35,209 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-21 01:46:35,209 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-21 01:46:35,209 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-21 01:46:35,209 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-21 01:46:35,209 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-21 01:46:35,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2021-11-21 01:46:35,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2021-11-21 01:46:35,210 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-21 01:46:35,210 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-21 01:46:35,210 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:46:35,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:46:35,210 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:46:35,210 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:46:35,210 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-21 01:46:35,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-21 01:46:35,210 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-21 01:46:35,210 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-21 01:46:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-21 01:46:35,211 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-21 01:46:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-21 01:46:35,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-21 01:46:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-21 01:46:35,211 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-21 01:46:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:46:35,211 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:46:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:46:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:46:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:46:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:46:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-21 01:46:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-21 01:46:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-21 01:46:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-21 01:46:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-21 01:46:35,212 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-21 01:46:35,212 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-21 01:46:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-21 01:46:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-21 01:46:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-21 01:46:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:46:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:46:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-21 01:46:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-21 01:46:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:46:35,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:46:35,213 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-21 01:46:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-21 01:46:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 01:46:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 01:46:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-21 01:46:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-21 01:46:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-21 01:46:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-21 01:46:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:46:35,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:46:35,214 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 01:46:35,215 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 01:46:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:46:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:46:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-21 01:46:35,217 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-21 01:46:35,217 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-21 01:46:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-21 01:46:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:46:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:46:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 01:46:35,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 01:46:35,218 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:46:35,219 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:46:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-11-21 01:46:35,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-11-21 01:46:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:46:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:46:35,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:46:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-21 01:46:37,454 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:46:37,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:46:38,898 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:47:42,808 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:47:43,114 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:47:50,482 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:47:50,482 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-21 01:47:50,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:50 BoogieIcfgContainer [2021-11-21 01:47:50,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:47:50,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:47:50,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:47:50,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:47:50,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:46:18" (1/3) ... [2021-11-21 01:47:50,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648c3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:50, skipping insertion in model container [2021-11-21 01:47:50,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:31" (2/3) ... [2021-11-21 01:47:50,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648c3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:50, skipping insertion in model container [2021-11-21 01:47:50,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:50" (3/3) ... [2021-11-21 01:47:50,503 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:47:50,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:47:50,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 01:47:50,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:47:50,592 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:47:50,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 01:47:50,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 6787 states, 4327 states have (on average 1.3413450427547955) internal successors, (5804), 4421 states have internal predecessors, (5804), 2207 states have call successors, (2207), 253 states have call predecessors, (2207), 252 states have return successors, (2201), 2193 states have call predecessors, (2201), 2201 states have call successors, (2201) [2021-11-21 01:47:50,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-21 01:47:50,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:50,767 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:50,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:47:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:50,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1651085325, now seen corresponding path program 1 times [2021-11-21 01:47:50,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:50,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658880363] [2021-11-21 01:47:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:50,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2021-11-21 01:47:52,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:52,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658880363] [2021-11-21 01:47:52,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658880363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:52,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:52,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:47:52,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599695390] [2021-11-21 01:47:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:52,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:47:52,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:47:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:47:52,572 INFO L87 Difference]: Start difference. First operand has 6787 states, 4327 states have (on average 1.3413450427547955) internal successors, (5804), 4421 states have internal predecessors, (5804), 2207 states have call successors, (2207), 253 states have call predecessors, (2207), 252 states have return successors, (2201), 2193 states have call predecessors, (2201), 2201 states have call successors, (2201) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 01:47:58,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:01,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:03,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:09,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:13,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:15,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:18,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:20,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:22,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:25,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:25,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:25,666 INFO L93 Difference]: Finished difference Result 19682 states and 30326 transitions. [2021-11-21 01:48:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:25,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2021-11-21 01:48:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:25,811 INFO L225 Difference]: With dead ends: 19682 [2021-11-21 01:48:25,811 INFO L226 Difference]: Without dead ends: 12932 [2021-11-21 01:48:25,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:25,978 INFO L933 BasicCegarLoop]: 11327 mSDtfsCounter, 9254 mSDsluCounter, 10138 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9257 SdHoareTripleChecker+Valid, 20598 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:25,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9257 Valid, 20598 Invalid, 1787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1772 Invalid, 8 Unknown, 0 Unchecked, 32.1s Time] [2021-11-21 01:48:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12932 states. [2021-11-21 01:48:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12932 to 12919. [2021-11-21 01:48:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12919 states, 8208 states have (on average 1.3357699805068226) internal successors, (10964), 8391 states have internal predecessors, (10964), 4215 states have call successors, (4215), 494 states have call predecessors, (4215), 493 states have return successors, (4214), 4194 states have call predecessors, (4214), 4211 states have call successors, (4214) [2021-11-21 01:48:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12919 states to 12919 states and 19393 transitions. [2021-11-21 01:48:27,614 INFO L78 Accepts]: Start accepts. Automaton has 12919 states and 19393 transitions. Word has length 251 [2021-11-21 01:48:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:27,620 INFO L470 AbstractCegarLoop]: Abstraction has 12919 states and 19393 transitions. [2021-11-21 01:48:27,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-21 01:48:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 12919 states and 19393 transitions. [2021-11-21 01:48:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-21 01:48:27,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:27,639 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:27,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:48:27,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:48:27,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:27,644 INFO L85 PathProgramCache]: Analyzing trace with hash -752238019, now seen corresponding path program 1 times [2021-11-21 01:48:27,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:27,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236246596] [2021-11-21 01:48:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:27,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked. [2021-11-21 01:48:28,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:28,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236246596] [2021-11-21 01:48:28,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236246596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:28,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:28,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:28,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496759654] [2021-11-21 01:48:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:28,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:28,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:28,683 INFO L87 Difference]: Start difference. First operand 12919 states and 19393 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 01:48:32,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:42,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:44,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:46,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:49,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:51,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:53,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:55,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:58,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:00,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:02,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:02,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:02,902 INFO L93 Difference]: Finished difference Result 28322 states and 42379 transitions. [2021-11-21 01:49:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:49:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 277 [2021-11-21 01:49:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:03,060 INFO L225 Difference]: With dead ends: 28322 [2021-11-21 01:49:03,060 INFO L226 Difference]: Without dead ends: 15450 [2021-11-21 01:49:03,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:03,130 INFO L933 BasicCegarLoop]: 11732 mSDtfsCounter, 6495 mSDsluCounter, 10001 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6497 SdHoareTripleChecker+Valid, 20920 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:03,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6497 Valid, 20920 Invalid, 1894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1879 Invalid, 8 Unknown, 0 Unchecked, 33.5s Time] [2021-11-21 01:49:03,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2021-11-21 01:49:04,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 15412. [2021-11-21 01:49:04,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15412 states, 9772 states have (on average 1.3286942284076955) internal successors, (12984), 9974 states have internal predecessors, (12984), 5003 states have call successors, (5003), 636 states have call predecessors, (5003), 634 states have return successors, (5003), 4982 states have call predecessors, (5003), 4999 states have call successors, (5003) [2021-11-21 01:49:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15412 states to 15412 states and 22990 transitions. [2021-11-21 01:49:04,560 INFO L78 Accepts]: Start accepts. Automaton has 15412 states and 22990 transitions. Word has length 277 [2021-11-21 01:49:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:04,563 INFO L470 AbstractCegarLoop]: Abstraction has 15412 states and 22990 transitions. [2021-11-21 01:49:04,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 01:49:04,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15412 states and 22990 transitions. [2021-11-21 01:49:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-21 01:49:04,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:04,676 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:04,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:49:04,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:49:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash 970769799, now seen corresponding path program 1 times [2021-11-21 01:49:04,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:04,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078163529] [2021-11-21 01:49:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:04,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2021-11-21 01:49:05,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:05,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078163529] [2021-11-21 01:49:05,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078163529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:05,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:05,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:49:05,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887506113] [2021-11-21 01:49:05,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:05,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:49:05,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:49:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:05,510 INFO L87 Difference]: Start difference. First operand 15412 states and 22990 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:49:09,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:15,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:22,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:24,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:26,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:28,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:30,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:33,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:36,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:37,478 INFO L93 Difference]: Finished difference Result 32445 states and 48481 transitions. [2021-11-21 01:49:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:49:37,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 290 [2021-11-21 01:49:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:37,567 INFO L225 Difference]: With dead ends: 32445 [2021-11-21 01:49:37,567 INFO L226 Difference]: Without dead ends: 17080 [2021-11-21 01:49:37,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:37,846 INFO L933 BasicCegarLoop]: 16115 mSDtfsCounter, 8634 mSDsluCounter, 10104 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 18 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8637 SdHoareTripleChecker+Valid, 25357 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:37,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8637 Valid, 25357 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2436 Invalid, 6 Unknown, 0 Unchecked, 31.2s Time] [2021-11-21 01:49:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17080 states. [2021-11-21 01:49:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17080 to 17045. [2021-11-21 01:49:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17045 states, 10852 states have (on average 1.3296166605234059) internal successors, (14429), 11085 states have internal predecessors, (14429), 5517 states have call successors, (5517), 677 states have call predecessors, (5517), 673 states have return successors, (5518), 5480 states have call predecessors, (5518), 5513 states have call successors, (5518) [2021-11-21 01:49:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17045 states to 17045 states and 25464 transitions. [2021-11-21 01:49:39,108 INFO L78 Accepts]: Start accepts. Automaton has 17045 states and 25464 transitions. Word has length 290 [2021-11-21 01:49:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:39,109 INFO L470 AbstractCegarLoop]: Abstraction has 17045 states and 25464 transitions. [2021-11-21 01:49:39,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:49:39,109 INFO L276 IsEmpty]: Start isEmpty. Operand 17045 states and 25464 transitions. [2021-11-21 01:49:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-21 01:49:39,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:39,116 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:39,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:49:39,116 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:49:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:39,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1806080851, now seen corresponding path program 1 times [2021-11-21 01:49:39,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:39,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235849046] [2021-11-21 01:49:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:39,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2021-11-21 01:49:40,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:40,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235849046] [2021-11-21 01:49:40,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235849046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:40,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:40,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:49:40,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120591856] [2021-11-21 01:49:40,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:40,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:49:40,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:49:40,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:40,194 INFO L87 Difference]: Start difference. First operand 17045 states and 25464 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 01:49:45,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:49:56,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:10,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:14,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:16,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:18,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:20,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:24,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:29,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:29,936 INFO L93 Difference]: Finished difference Result 21583 states and 32163 transitions. [2021-11-21 01:50:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:50:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 293 [2021-11-21 01:50:29,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:30,054 INFO L225 Difference]: With dead ends: 21583 [2021-11-21 01:50:30,054 INFO L226 Difference]: Without dead ends: 21581 [2021-11-21 01:50:30,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:50:30,068 INFO L933 BasicCegarLoop]: 12941 mSDtfsCounter, 6494 mSDsluCounter, 37941 mSDsCounter, 0 mSdLazyCounter, 3875 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6513 SdHoareTripleChecker+Valid, 48023 SdHoareTripleChecker+Invalid, 3886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3875 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:30,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6513 Valid, 48023 Invalid, 3886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3875 Invalid, 9 Unknown, 0 Unchecked, 48.9s Time] [2021-11-21 01:50:30,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21581 states. [2021-11-21 01:50:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21581 to 21569. [2021-11-21 01:50:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21569 states, 13696 states have (on average 1.326883761682243) internal successors, (18173), 13988 states have internal predecessors, (18173), 6988 states have call successors, (6988), 888 states have call predecessors, (6988), 882 states have return successors, (6987), 6940 states have call predecessors, (6987), 6980 states have call successors, (6987) [2021-11-21 01:50:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21569 states to 21569 states and 32148 transitions. [2021-11-21 01:50:32,097 INFO L78 Accepts]: Start accepts. Automaton has 21569 states and 32148 transitions. Word has length 293 [2021-11-21 01:50:32,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:32,098 INFO L470 AbstractCegarLoop]: Abstraction has 21569 states and 32148 transitions. [2021-11-21 01:50:32,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-21 01:50:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 21569 states and 32148 transitions. [2021-11-21 01:50:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-21 01:50:32,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:32,107 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:32,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:50:32,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:50:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1924570670, now seen corresponding path program 1 times [2021-11-21 01:50:32,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:32,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424565941] [2021-11-21 01:50:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:32,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2254 trivial. 0 not checked. [2021-11-21 01:50:33,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:33,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424565941] [2021-11-21 01:50:33,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424565941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:33,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:33,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:50:33,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868148651] [2021-11-21 01:50:33,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:33,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:50:33,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:50:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:33,276 INFO L87 Difference]: Start difference. First operand 21569 states and 32148 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:50:37,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:39,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:41,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:45,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:50:56,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:00,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:02,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:05,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:13,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:15,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:17,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:19,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:22,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:25,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:27,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:51:27,878 INFO L93 Difference]: Finished difference Result 38166 states and 56973 transitions. [2021-11-21 01:51:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:51:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 301 [2021-11-21 01:51:27,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:51:28,223 INFO L225 Difference]: With dead ends: 38166 [2021-11-21 01:51:28,223 INFO L226 Difference]: Without dead ends: 38164 [2021-11-21 01:51:28,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:51:28,240 INFO L933 BasicCegarLoop]: 11441 mSDtfsCounter, 9705 mSDsluCounter, 34709 mSDsCounter, 0 mSdLazyCounter, 3536 mSolverCounterSat, 3 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9722 SdHoareTripleChecker+Valid, 43515 SdHoareTripleChecker+Invalid, 3551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3536 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:51:28,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9722 Valid, 43515 Invalid, 3551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3536 Invalid, 12 Unknown, 0 Unchecked, 53.5s Time] [2021-11-21 01:51:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38164 states. [2021-11-21 01:51:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38164 to 38116. [2021-11-21 01:51:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38116 states, 24212 states have (on average 1.3285973897241037) internal successors, (32168), 24738 states have internal predecessors, (32168), 12350 states have call successors, (12350), 1561 states have call predecessors, (12350), 1551 states have return successors, (12396), 12259 states have call predecessors, (12396), 12338 states have call successors, (12396) [2021-11-21 01:51:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38116 states to 38116 states and 56914 transitions. [2021-11-21 01:51:30,892 INFO L78 Accepts]: Start accepts. Automaton has 38116 states and 56914 transitions. Word has length 301 [2021-11-21 01:51:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:51:30,893 INFO L470 AbstractCegarLoop]: Abstraction has 38116 states and 56914 transitions. [2021-11-21 01:51:30,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:51:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 38116 states and 56914 transitions. [2021-11-21 01:51:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-21 01:51:30,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:51:30,901 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:51:30,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:51:30,902 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:51:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:51:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash -657573843, now seen corresponding path program 1 times [2021-11-21 01:51:30,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:51:30,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533894499] [2021-11-21 01:51:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:51:30,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:51:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2251 trivial. 0 not checked. [2021-11-21 01:51:32,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:32,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533894499] [2021-11-21 01:51:32,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533894499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:51:32,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:51:32,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:51:32,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085811385] [2021-11-21 01:51:32,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:51:32,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:51:32,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:51:32,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:51:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:51:32,019 INFO L87 Difference]: Start difference. First operand 38116 states and 56914 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:51:36,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:51,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:51:55,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:01,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:03,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:05,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:08,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:12,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:14,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:19,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:21,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:24,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:26,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:26,737 INFO L93 Difference]: Finished difference Result 38134 states and 56932 transitions. [2021-11-21 01:52:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:52:26,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 303 [2021-11-21 01:52:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:26,911 INFO L225 Difference]: With dead ends: 38134 [2021-11-21 01:52:26,911 INFO L226 Difference]: Without dead ends: 38132 [2021-11-21 01:52:26,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:52:26,929 INFO L933 BasicCegarLoop]: 12977 mSDtfsCounter, 6489 mSDsluCounter, 38023 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6506 SdHoareTripleChecker+Valid, 48125 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:26,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6506 Valid, 48125 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3897 Invalid, 11 Unknown, 0 Unchecked, 53.7s Time] [2021-11-21 01:52:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38132 states. [2021-11-21 01:52:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38132 to 38120. [2021-11-21 01:52:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38120 states, 24215 states have (on average 1.3285566797439603) internal successors, (32171), 24741 states have internal predecessors, (32171), 12350 states have call successors, (12350), 1562 states have call predecessors, (12350), 1552 states have return successors, (12396), 12259 states have call predecessors, (12396), 12338 states have call successors, (12396) [2021-11-21 01:52:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38120 states to 38120 states and 56917 transitions. [2021-11-21 01:52:29,968 INFO L78 Accepts]: Start accepts. Automaton has 38120 states and 56917 transitions. Word has length 303 [2021-11-21 01:52:29,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:29,969 INFO L470 AbstractCegarLoop]: Abstraction has 38120 states and 56917 transitions. [2021-11-21 01:52:29,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-21 01:52:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 38120 states and 56917 transitions. [2021-11-21 01:52:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-21 01:52:29,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:29,984 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:29,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:52:29,984 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:52:29,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash -445397773, now seen corresponding path program 1 times [2021-11-21 01:52:29,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:29,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777045840] [2021-11-21 01:52:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:29,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2259 trivial. 0 not checked. [2021-11-21 01:52:31,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:31,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777045840] [2021-11-21 01:52:31,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777045840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:31,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:31,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:52:31,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932856816] [2021-11-21 01:52:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:31,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:52:31,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:31,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:52:31,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:52:31,133 INFO L87 Difference]: Start difference. First operand 38120 states and 56917 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:52:35,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:38,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:46,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:48,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:55,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:52:59,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:01,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:04,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:11,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:13,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:17,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:19,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:20,739 INFO L93 Difference]: Finished difference Result 54811 states and 81810 transitions. [2021-11-21 01:53:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:53:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 308 [2021-11-21 01:53:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:20,960 INFO L225 Difference]: With dead ends: 54811 [2021-11-21 01:53:20,960 INFO L226 Difference]: Without dead ends: 54809 [2021-11-21 01:53:20,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:53:20,977 INFO L933 BasicCegarLoop]: 11429 mSDtfsCounter, 9696 mSDsluCounter, 34687 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9711 SdHoareTripleChecker+Valid, 43481 SdHoareTripleChecker+Invalid, 3548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:20,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9711 Valid, 43481 Invalid, 3548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3539 Invalid, 7 Unknown, 0 Unchecked, 48.1s Time] [2021-11-21 01:53:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54809 states. [2021-11-21 01:53:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54809 to 54764. [2021-11-21 01:53:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54764 states, 34785 states have (on average 1.3289636337501798) internal successors, (46228), 35548 states have internal predecessors, (46228), 17739 states have call successors, (17739), 2251 states have call predecessors, (17739), 2237 states have return successors, (17787), 17608 states have call predecessors, (17787), 17723 states have call successors, (17787) [2021-11-21 01:53:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54764 states to 54764 states and 81754 transitions. [2021-11-21 01:53:24,950 INFO L78 Accepts]: Start accepts. Automaton has 54764 states and 81754 transitions. Word has length 308 [2021-11-21 01:53:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:24,951 INFO L470 AbstractCegarLoop]: Abstraction has 54764 states and 81754 transitions. [2021-11-21 01:53:24,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 01:53:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 54764 states and 81754 transitions. [2021-11-21 01:53:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-21 01:53:24,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:24,960 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:24,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:53:24,960 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:53:24,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1191265599, now seen corresponding path program 1 times [2021-11-21 01:53:24,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:24,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930217577] [2021-11-21 01:53:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:24,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2287 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2279 trivial. 0 not checked. [2021-11-21 01:53:26,770 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:26,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930217577] [2021-11-21 01:53:26,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930217577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:26,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:26,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:53:26,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013548827] [2021-11-21 01:53:26,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:26,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:53:26,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:53:26,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:26,772 INFO L87 Difference]: Start difference. First operand 54764 states and 81754 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:53:30,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:33,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:56,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:53:58,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:00,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:03,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:05,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:10,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:15,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:18,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:20,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:22,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:23,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:23,743 INFO L93 Difference]: Finished difference Result 103126 states and 154283 transitions. [2021-11-21 01:54:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:54:23,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 317 [2021-11-21 01:54:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:24,221 INFO L225 Difference]: With dead ends: 103126 [2021-11-21 01:54:24,221 INFO L226 Difference]: Without dead ends: 103124 [2021-11-21 01:54:24,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:54:24,256 INFO L933 BasicCegarLoop]: 15399 mSDtfsCounter, 9542 mSDsluCounter, 43375 mSDsCounter, 0 mSdLazyCounter, 4962 mSolverCounterSat, 3 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9558 SdHoareTripleChecker+Valid, 55194 SdHoareTripleChecker+Invalid, 4977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4962 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:24,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9558 Valid, 55194 Invalid, 4977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4962 Invalid, 12 Unknown, 0 Unchecked, 54.3s Time] [2021-11-21 01:54:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103124 states. [2021-11-21 01:54:30,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103124 to 103035. [2021-11-21 01:54:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103035 states, 65163 states have (on average 1.325890459309731) internal successors, (86399), 66733 states have internal predecessors, (86399), 33655 states have call successors, (33655), 4256 states have call predecessors, (33655), 4214 states have return successors, (34115), 33284 states have call predecessors, (34115), 33627 states have call successors, (34115) [2021-11-21 01:54:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103035 states to 103035 states and 154169 transitions. [2021-11-21 01:54:31,683 INFO L78 Accepts]: Start accepts. Automaton has 103035 states and 154169 transitions. Word has length 317 [2021-11-21 01:54:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:31,684 INFO L470 AbstractCegarLoop]: Abstraction has 103035 states and 154169 transitions. [2021-11-21 01:54:31,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 01:54:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 103035 states and 154169 transitions. [2021-11-21 01:54:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-21 01:54:31,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:31,698 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:31,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:54:31,698 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:54:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1723827538, now seen corresponding path program 1 times [2021-11-21 01:54:31,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:31,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939885048] [2021-11-21 01:54:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:31,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2021-11-21 01:54:32,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:32,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939885048] [2021-11-21 01:54:32,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939885048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:32,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:32,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:54:32,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652869493] [2021-11-21 01:54:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:32,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:54:32,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:54:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:54:32,683 INFO L87 Difference]: Start difference. First operand 103035 states and 154169 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-21 01:54:35,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:54:38,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:06,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:09,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:11,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:14,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:18,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:20,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:27,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:30,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:55:31,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:55:31,570 INFO L93 Difference]: Finished difference Result 176955 states and 264283 transitions. [2021-11-21 01:55:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:55:31,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 321 [2021-11-21 01:55:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:55:32,518 INFO L225 Difference]: With dead ends: 176955 [2021-11-21 01:55:32,518 INFO L226 Difference]: Without dead ends: 176953 [2021-11-21 01:55:32,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:55:32,584 INFO L933 BasicCegarLoop]: 13772 mSDtfsCounter, 9392 mSDsluCounter, 38280 mSDsCounter, 0 mSdLazyCounter, 4629 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9404 SdHoareTripleChecker+Valid, 48713 SdHoareTripleChecker+Invalid, 4641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4629 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:55:32,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9404 Valid, 48713 Invalid, 4641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4629 Invalid, 9 Unknown, 0 Unchecked, 54.4s Time] [2021-11-21 01:55:32,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176953 states. [2021-11-21 01:55:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176953 to 176872. [2021-11-21 01:55:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176872 states, 110666 states have (on average 1.3139988795113224) internal successors, (145415), 114077 states have internal predecessors, (145415), 58333 states have call successors, (58333), 8023 states have call predecessors, (58333), 7870 states have return successors, (60426), 57072 states have call predecessors, (60426), 58281 states have call successors, (60426) [2021-11-21 01:55:46,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176872 states to 176872 states and 264174 transitions. [2021-11-21 01:55:46,253 INFO L78 Accepts]: Start accepts. Automaton has 176872 states and 264174 transitions. Word has length 321 [2021-11-21 01:55:46,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:55:46,255 INFO L470 AbstractCegarLoop]: Abstraction has 176872 states and 264174 transitions. [2021-11-21 01:55:46,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-21 01:55:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 176872 states and 264174 transitions. [2021-11-21 01:55:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-21 01:55:46,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:55:46,261 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:55:46,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:55:46,262 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:55:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:55:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 412299858, now seen corresponding path program 1 times [2021-11-21 01:55:46,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:55:46,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298586051] [2021-11-21 01:55:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:55:46,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:55:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2326 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2314 trivial. 0 not checked. [2021-11-21 01:55:46,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:46,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298586051] [2021-11-21 01:55:46,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298586051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:55:46,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:55:46,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:55:46,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618616156] [2021-11-21 01:55:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:55:47,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:55:47,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:55:47,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:55:47,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:55:47,001 INFO L87 Difference]: Start difference. First operand 176872 states and 264174 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-21 01:55:51,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:13,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:15,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:17,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:19,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:24,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:26,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:34,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:56:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:56:35,724 INFO L93 Difference]: Finished difference Result 176890 states and 264192 transitions. [2021-11-21 01:56:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:56:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 326 [2021-11-21 01:56:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:56:36,525 INFO L225 Difference]: With dead ends: 176890 [2021-11-21 01:56:36,525 INFO L226 Difference]: Without dead ends: 176888 [2021-11-21 01:56:36,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:56:36,584 INFO L933 BasicCegarLoop]: 13008 mSDtfsCounter, 6488 mSDsluCounter, 38083 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 48218 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:56:36,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6501 Valid, 48218 Invalid, 3907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3897 Invalid, 8 Unknown, 0 Unchecked, 43.7s Time] [2021-11-21 01:56:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176888 states. [2021-11-21 01:56:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176888 to 176876. [2021-11-21 01:56:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176876 states, 110669 states have (on average 1.3139903676729707) internal successors, (145418), 114080 states have internal predecessors, (145418), 58333 states have call successors, (58333), 8024 states have call predecessors, (58333), 7871 states have return successors, (60426), 57072 states have call predecessors, (60426), 58281 states have call successors, (60426)