./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 05:02:00,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 05:02:00,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 05:02:00,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 05:02:00,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 05:02:00,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 05:02:00,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 05:02:00,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 05:02:00,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 05:02:00,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 05:02:00,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 05:02:00,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 05:02:00,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 05:02:00,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 05:02:00,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 05:02:00,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 05:02:00,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 05:02:00,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 05:02:00,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 05:02:00,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 05:02:00,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 05:02:00,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 05:02:00,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 05:02:00,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 05:02:00,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 05:02:00,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 05:02:00,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 05:02:00,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 05:02:00,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 05:02:00,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 05:02:00,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 05:02:00,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 05:02:00,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 05:02:00,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 05:02:00,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 05:02:00,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 05:02:00,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 05:02:00,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 05:02:00,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 05:02:00,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 05:02:00,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 05:02:00,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 05:02:00,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 05:02:00,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 05:02:00,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 05:02:00,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 05:02:00,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 05:02:00,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 05:02:00,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 05:02:00,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 05:02:00,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 05:02:00,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 05:02:00,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 05:02:00,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:02:00,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 05:02:00,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 05:02:00,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 05:02:00,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 05:02:00,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 05:02:00,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 05:02:00,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 05:02:00,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 05:02:00,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 05:02:00,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d46a0c21917156d86326b49faaf0b679a3e4aece26c641cfed6d2cba03552492 [2021-12-16 05:02:00,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 05:02:00,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 05:02:00,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 05:02:00,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 05:02:00,727 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 05:02:00,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 05:02:00,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b50e398/d29d790dac6d45b1a051387d4435d748/FLAG05ad20318 [2021-12-16 05:02:01,896 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 05:02:01,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 05:02:01,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b50e398/d29d790dac6d45b1a051387d4435d748/FLAG05ad20318 [2021-12-16 05:02:02,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b50e398/d29d790dac6d45b1a051387d4435d748 [2021-12-16 05:02:02,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 05:02:02,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 05:02:02,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 05:02:02,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 05:02:02,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 05:02:02,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:02" (1/1) ... [2021-12-16 05:02:02,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ee4355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:02, skipping insertion in model container [2021-12-16 05:02:02,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:02:02" (1/1) ... [2021-12-16 05:02:02,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 05:02:02,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 05:02:05,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-16 05:02:05,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-16 05:02:05,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-16 05:02:05,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-16 05:02:05,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:02:05,470 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 05:02:05,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450587,450600] [2021-12-16 05:02:05,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450756,450769] [2021-12-16 05:02:05,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[450923,450936] [2021-12-16 05:02:05,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[451091,451104] [2021-12-16 05:02:05,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 05:02:05,940 INFO L208 MainTranslator]: Completed translation [2021-12-16 05:02:05,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05 WrapperNode [2021-12-16 05:02:05,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 05:02:05,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 05:02:05,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 05:02:05,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 05:02:05,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,278 INFO L137 Inliner]: procedures = 547, calls = 4326, calls flagged for inlining = 248, calls inlined = 226, statements flattened = 8589 [2021-12-16 05:02:06,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 05:02:06,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 05:02:06,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 05:02:06,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 05:02:06,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 05:02:06,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 05:02:06,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 05:02:06,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 05:02:06,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (1/1) ... [2021-12-16 05:02:06,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 05:02:06,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 05:02:06,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 05:02:06,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 05:02:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-16 05:02:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-16 05:02:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 05:02:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 05:02:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-16 05:02:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-16 05:02:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-16 05:02:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-16 05:02:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-12-16 05:02:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-12-16 05:02:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 05:02:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 05:02:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-12-16 05:02:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-12-16 05:02:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 05:02:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 05:02:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 05:02:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 05:02:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-12-16 05:02:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-12-16 05:02:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_82 [2021-12-16 05:02:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_82 [2021-12-16 05:02:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-12-16 05:02:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-12-16 05:02:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:02:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 05:02:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-16 05:02:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-16 05:02:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-12-16 05:02:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-12-16 05:02:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 05:02:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 05:02:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-16 05:02:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-16 05:02:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-16 05:02:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-16 05:02:06,644 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-12-16 05:02:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-12-16 05:02:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-16 05:02:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-16 05:02:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-16 05:02:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-16 05:02:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-16 05:02:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-16 05:02:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-12-16 05:02:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-12-16 05:02:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 05:02:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 05:02:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-16 05:02:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-12-16 05:02:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-16 05:02:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-12-16 05:02:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-12-16 05:02:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-12-16 05:02:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-16 05:02:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-16 05:02:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 05:02:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 05:02:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 05:02:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 05:02:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-16 05:02:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-16 05:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-16 05:02:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-16 05:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-16 05:02:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-16 05:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 05:02:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 05:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 05:02:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 05:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-16 05:02:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-16 05:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 05:02:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 05:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-12-16 05:02:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-12-16 05:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 05:02:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 05:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 05:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-12-16 05:02:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-12-16 05:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-16 05:02:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-16 05:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 05:02:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 05:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 05:02:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 05:02:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 05:02:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-12-16 05:02:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-12-16 05:02:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-16 05:02:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-16 05:02:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-16 05:02:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-16 05:02:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 05:02:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 05:02:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-16 05:02:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-16 05:02:06,653 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 05:02:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 05:02:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 05:02:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 05:02:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 05:02:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 05:02:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-12-16 05:02:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-12-16 05:02:06,654 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-16 05:02:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-16 05:02:06,655 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 05:02:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 05:02:06,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 05:02:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 05:02:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-16 05:02:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-16 05:02:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 05:02:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 05:02:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-16 05:02:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-16 05:02:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-12-16 05:02:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-12-16 05:02:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_83 [2021-12-16 05:02:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_83 [2021-12-16 05:02:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-16 05:02:06,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-16 05:02:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-16 05:02:06,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-16 05:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 05:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 05:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-12-16 05:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-12-16 05:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 05:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 05:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-12-16 05:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-12-16 05:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-16 05:02:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-16 05:02:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 05:02:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 05:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 05:02:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 05:02:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 05:02:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-16 05:02:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-16 05:02:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 05:02:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 05:02:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 05:02:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 05:02:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 05:02:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 05:02:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_98 [2021-12-16 05:02:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_98 [2021-12-16 05:02:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-12-16 05:02:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-12-16 05:02:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 05:02:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 05:02:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-12-16 05:02:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-12-16 05:02:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-16 05:02:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-16 05:02:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 05:02:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-16 05:02:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-12-16 05:02:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-12-16 05:02:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-16 05:02:06,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-16 05:02:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-16 05:02:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-16 05:02:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 05:02:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 05:02:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 05:02:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 05:02:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-12-16 05:02:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-12-16 05:02:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 05:02:06,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 05:02:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-12-16 05:02:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-12-16 05:02:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-16 05:02:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 05:02:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-12-16 05:02:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-16 05:02:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-16 05:02:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-12-16 05:02:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-12-16 05:02:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-12-16 05:02:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-12-16 05:02:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-16 05:02:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-16 05:02:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 05:02:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 05:02:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-12-16 05:02:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 05:02:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:02:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-16 05:02:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-16 05:02:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-16 05:02:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-16 05:02:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-16 05:02:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-16 05:02:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 05:02:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 05:02:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-16 05:02:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-16 05:02:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 05:02:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 05:02:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-16 05:02:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-16 05:02:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-16 05:02:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-12-16 05:02:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-12-16 05:02:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-12-16 05:02:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-12-16 05:02:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_81 [2021-12-16 05:02:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_81 [2021-12-16 05:02:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 05:02:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 05:02:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-16 05:02:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2021-12-16 05:02:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2021-12-16 05:02:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-16 05:02:06,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-16 05:02:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 05:02:06,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 05:02:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 05:02:06,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 05:02:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-16 05:02:06,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-16 05:02:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_108 [2021-12-16 05:02:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_108 [2021-12-16 05:02:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-16 05:02:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-16 05:02:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-12-16 05:02:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-12-16 05:02:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_89 [2021-12-16 05:02:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_89 [2021-12-16 05:02:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2021-12-16 05:02:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-12-16 05:02:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-12-16 05:02:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 05:02:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-12-16 05:02:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-16 05:02:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-16 05:02:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 05:02:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 05:02:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 05:02:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-12-16 05:02:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2021-12-16 05:02:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 05:02:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-12-16 05:02:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-12-16 05:02:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-16 05:02:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-16 05:02:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 05:02:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 05:02:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 05:02:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-12-16 05:02:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-12-16 05:02:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-12-16 05:02:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-16 05:02:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_109 [2021-12-16 05:02:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_109 [2021-12-16 05:02:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_94 [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_94 [2021-12-16 05:02:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-12-16 05:02:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_90 [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_90 [2021-12-16 05:02:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-16 05:02:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-12-16 05:02:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-12-16 05:02:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-12-16 05:02:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 05:02:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 05:02:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-16 05:02:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-16 05:02:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-16 05:02:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-16 05:02:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-16 05:02:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-16 05:02:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-16 05:02:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-12-16 05:02:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 05:02:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 05:02:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 05:02:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 05:02:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 05:02:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-16 05:02:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-16 05:02:07,662 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 05:02:07,664 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 05:02:08,881 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 05:02:11,613 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 05:02:11,637 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 05:02:11,638 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 05:02:11,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:02:11 BoogieIcfgContainer [2021-12-16 05:02:11,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 05:02:11,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 05:02:11,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 05:02:11,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 05:02:11,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:02:02" (1/3) ... [2021-12-16 05:02:11,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3bbf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:02:11, skipping insertion in model container [2021-12-16 05:02:11,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:02:05" (2/3) ... [2021-12-16 05:02:11,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3bbf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:02:11, skipping insertion in model container [2021-12-16 05:02:11,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:02:11" (3/3) ... [2021-12-16 05:02:11,649 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-12-16 05:02:11,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 05:02:11,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 05:02:11,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 05:02:11,701 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=PETRI_NET, 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 [2021-12-16 05:02:11,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 05:02:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) [2021-12-16 05:02:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 05:02:11,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:11,774 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-16 05:02:11,774 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)] === [2021-12-16 05:02:11,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:11,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1624278035, now seen corresponding path program 1 times [2021-12-16 05:02:11,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:11,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527035984] [2021-12-16 05:02:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:11,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 05:02:12,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:12,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527035984] [2021-12-16 05:02:12,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527035984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:12,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:12,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:02:12,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552340954] [2021-12-16 05:02:12,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:12,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:02:12,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:12,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:02:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:02:12,440 INFO L87 Difference]: Start difference. First operand has 2828 states, 1912 states have (on average 1.3284518828451883) internal successors, (2540), 2000 states have internal predecessors, (2540), 758 states have call successors, (758), 155 states have call predecessors, (758), 154 states have return successors, (751), 733 states have call predecessors, (751), 751 states have call successors, (751) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 05:02:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:15,250 INFO L93 Difference]: Finished difference Result 9850 states and 14683 transitions. [2021-12-16 05:02:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 05:02:15,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-12-16 05:02:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:15,357 INFO L225 Difference]: With dead ends: 9850 [2021-12-16 05:02:15,357 INFO L226 Difference]: Without dead ends: 7017 [2021-12-16 05:02:15,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:02:15,400 INFO L933 BasicCegarLoop]: 6553 mSDtfsCounter, 7704 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7704 SdHoareTripleChecker+Valid, 12357 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:15,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7704 Valid, 12357 Invalid, 2384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1186 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-16 05:02:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2021-12-16 05:02:15,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 6957. [2021-12-16 05:02:15,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6957 states, 4622 states have (on average 1.3067935958459542) internal successors, (6040), 4828 states have internal predecessors, (6040), 1897 states have call successors, (1897), 436 states have call predecessors, (1897), 435 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-16 05:02:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6957 states to 6957 states and 9831 transitions. [2021-12-16 05:02:15,800 INFO L78 Accepts]: Start accepts. Automaton has 6957 states and 9831 transitions. Word has length 55 [2021-12-16 05:02:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:15,816 INFO L470 AbstractCegarLoop]: Abstraction has 6957 states and 9831 transitions. [2021-12-16 05:02:15,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 05:02:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6957 states and 9831 transitions. [2021-12-16 05:02:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 05:02:15,819 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:15,819 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-16 05:02:15,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 05:02:15,820 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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)] === [2021-12-16 05:02:15,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:15,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1899037649, now seen corresponding path program 1 times [2021-12-16 05:02:15,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:15,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293192946] [2021-12-16 05:02:15,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:15,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 05:02:16,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:16,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293192946] [2021-12-16 05:02:16,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293192946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:16,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:16,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:16,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810891746] [2021-12-16 05:02:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:16,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:16,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:16,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:16,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:16,083 INFO L87 Difference]: Start difference. First operand 6957 states and 9831 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 05:02:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:16,291 INFO L93 Difference]: Finished difference Result 6963 states and 9836 transitions. [2021-12-16 05:02:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:16,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2021-12-16 05:02:16,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:16,328 INFO L225 Difference]: With dead ends: 6963 [2021-12-16 05:02:16,328 INFO L226 Difference]: Without dead ends: 6961 [2021-12-16 05:02:16,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:16,336 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3983 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 12021 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:16,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3996 Valid, 12021 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:16,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6961 states. [2021-12-16 05:02:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6961 to 6961. [2021-12-16 05:02:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 4625 states have (on average 1.3065945945945947) internal successors, (6043), 4831 states have internal predecessors, (6043), 1897 states have call successors, (1897), 437 states have call predecessors, (1897), 436 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-16 05:02:16,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 9834 transitions. [2021-12-16 05:02:16,737 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 9834 transitions. Word has length 55 [2021-12-16 05:02:16,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:16,738 INFO L470 AbstractCegarLoop]: Abstraction has 6961 states and 9834 transitions. [2021-12-16 05:02:16,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-16 05:02:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 9834 transitions. [2021-12-16 05:02:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-16 05:02:16,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:16,740 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-16 05:02:16,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 05:02:16,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-12-16 05:02:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1241173696, now seen corresponding path program 1 times [2021-12-16 05:02:16,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:16,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273671600] [2021-12-16 05:02:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:16,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 05:02:17,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273671600] [2021-12-16 05:02:17,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273671600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:17,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:17,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:17,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677966580] [2021-12-16 05:02:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:17,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:17,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:17,014 INFO L87 Difference]: Start difference. First operand 6961 states and 9834 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 05:02:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:17,181 INFO L93 Difference]: Finished difference Result 6967 states and 9839 transitions. [2021-12-16 05:02:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-12-16 05:02:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:17,209 INFO L225 Difference]: With dead ends: 6967 [2021-12-16 05:02:17,210 INFO L226 Difference]: Without dead ends: 6965 [2021-12-16 05:02:17,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:17,215 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:17,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3990 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2021-12-16 05:02:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6965. [2021-12-16 05:02:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 4628 states have (on average 1.3063958513396716) internal successors, (6046), 4834 states have internal predecessors, (6046), 1897 states have call successors, (1897), 438 states have call predecessors, (1897), 437 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-16 05:02:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 9837 transitions. [2021-12-16 05:02:17,425 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 9837 transitions. Word has length 60 [2021-12-16 05:02:17,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:17,426 INFO L470 AbstractCegarLoop]: Abstraction has 6965 states and 9837 transitions. [2021-12-16 05:02:17,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 05:02:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 9837 transitions. [2021-12-16 05:02:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-16 05:02:17,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:17,428 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:17,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 05:02:17,429 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)] === [2021-12-16 05:02:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 586024591, now seen corresponding path program 1 times [2021-12-16 05:02:17,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:17,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340526697] [2021-12-16 05:02:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:17,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-16 05:02:17,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:17,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340526697] [2021-12-16 05:02:17,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340526697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:17,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:17,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:17,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586845565] [2021-12-16 05:02:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:17,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:17,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:17,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:17,649 INFO L87 Difference]: Start difference. First operand 6965 states and 9837 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 05:02:17,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:17,863 INFO L93 Difference]: Finished difference Result 6971 states and 9842 transitions. [2021-12-16 05:02:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:17,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2021-12-16 05:02:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:17,889 INFO L225 Difference]: With dead ends: 6971 [2021-12-16 05:02:17,889 INFO L226 Difference]: Without dead ends: 6969 [2021-12-16 05:02:17,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:17,893 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:17,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2021-12-16 05:02:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6969. [2021-12-16 05:02:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 4631 states have (on average 1.3061973655797883) internal successors, (6049), 4837 states have internal predecessors, (6049), 1897 states have call successors, (1897), 439 states have call predecessors, (1897), 438 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-16 05:02:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 9840 transitions. [2021-12-16 05:02:18,095 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 9840 transitions. Word has length 65 [2021-12-16 05:02:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:18,095 INFO L470 AbstractCegarLoop]: Abstraction has 6969 states and 9840 transitions. [2021-12-16 05:02:18,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 05:02:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 9840 transitions. [2021-12-16 05:02:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-16 05:02:18,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:18,097 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-12-16 05:02:18,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 05:02:18,097 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)] === [2021-12-16 05:02:18,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash 633171936, now seen corresponding path program 1 times [2021-12-16 05:02:18,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:18,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963253370] [2021-12-16 05:02:18,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:18,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-16 05:02:18,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:18,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963253370] [2021-12-16 05:02:18,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963253370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:18,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:18,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:18,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985215801] [2021-12-16 05:02:18,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:18,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:18,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:18,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:18,299 INFO L87 Difference]: Start difference. First operand 6969 states and 9840 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-16 05:02:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:18,479 INFO L93 Difference]: Finished difference Result 6975 states and 9845 transitions. [2021-12-16 05:02:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:18,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2021-12-16 05:02:18,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:18,504 INFO L225 Difference]: With dead ends: 6975 [2021-12-16 05:02:18,504 INFO L226 Difference]: Without dead ends: 6973 [2021-12-16 05:02:18,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:18,510 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:18,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3988 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2021-12-16 05:02:18,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6973. [2021-12-16 05:02:18,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 4634 states have (on average 1.3059991368148467) internal successors, (6052), 4840 states have internal predecessors, (6052), 1897 states have call successors, (1897), 440 states have call predecessors, (1897), 439 states have return successors, (1894), 1846 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-16 05:02:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 9843 transitions. [2021-12-16 05:02:18,801 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 9843 transitions. Word has length 70 [2021-12-16 05:02:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:18,802 INFO L470 AbstractCegarLoop]: Abstraction has 6973 states and 9843 transitions. [2021-12-16 05:02:18,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-16 05:02:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 9843 transitions. [2021-12-16 05:02:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 05:02:18,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:18,804 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:18,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 05:02:18,805 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)] === [2021-12-16 05:02:18,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:18,805 INFO L85 PathProgramCache]: Analyzing trace with hash -344833697, now seen corresponding path program 1 times [2021-12-16 05:02:18,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:18,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621186430] [2021-12-16 05:02:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:18,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:02:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:02:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:02:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-16 05:02:19,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:19,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621186430] [2021-12-16 05:02:19,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621186430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:19,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:19,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 05:02:19,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290448837] [2021-12-16 05:02:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:19,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 05:02:19,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:19,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 05:02:19,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:02:19,024 INFO L87 Difference]: Start difference. First operand 6973 states and 9843 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 05:02:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:21,049 INFO L93 Difference]: Finished difference Result 11246 states and 15807 transitions. [2021-12-16 05:02:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 05:02:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2021-12-16 05:02:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:21,096 INFO L225 Difference]: With dead ends: 11246 [2021-12-16 05:02:21,096 INFO L226 Difference]: Without dead ends: 9129 [2021-12-16 05:02:21,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 05:02:21,119 INFO L933 BasicCegarLoop]: 7542 mSDtfsCounter, 6936 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6936 SdHoareTripleChecker+Valid, 14594 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:21,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6936 Valid, 14594 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 05:02:21,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9129 states. [2021-12-16 05:02:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9129 to 9037. [2021-12-16 05:02:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 5984 states have (on average 1.3039772727272727) internal successors, (7803), 6251 states have internal predecessors, (7803), 2470 states have call successors, (2470), 581 states have call predecessors, (2470), 580 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-16 05:02:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12740 transitions. [2021-12-16 05:02:21,570 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12740 transitions. Word has length 86 [2021-12-16 05:02:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:21,570 INFO L470 AbstractCegarLoop]: Abstraction has 9037 states and 12740 transitions. [2021-12-16 05:02:21,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 05:02:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12740 transitions. [2021-12-16 05:02:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-16 05:02:21,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:21,572 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-12-16 05:02:21,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 05:02:21,573 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)] === [2021-12-16 05:02:21,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1132284143, now seen corresponding path program 1 times [2021-12-16 05:02:21,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:21,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939445850] [2021-12-16 05:02:21,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:21,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-16 05:02:21,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:21,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939445850] [2021-12-16 05:02:21,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939445850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:21,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:21,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:21,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647691328] [2021-12-16 05:02:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:21,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:21,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:21,835 INFO L87 Difference]: Start difference. First operand 9037 states and 12740 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 05:02:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:22,073 INFO L93 Difference]: Finished difference Result 9043 states and 12745 transitions. [2021-12-16 05:02:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-16 05:02:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:22,103 INFO L225 Difference]: With dead ends: 9043 [2021-12-16 05:02:22,104 INFO L226 Difference]: Without dead ends: 9041 [2021-12-16 05:02:22,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:22,110 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:22,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:22,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2021-12-16 05:02:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 9041. [2021-12-16 05:02:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9041 states, 5987 states have (on average 1.3038249540671454) internal successors, (7806), 6254 states have internal predecessors, (7806), 2470 states have call successors, (2470), 582 states have call predecessors, (2470), 581 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-16 05:02:22,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9041 states to 9041 states and 12743 transitions. [2021-12-16 05:02:22,417 INFO L78 Accepts]: Start accepts. Automaton has 9041 states and 12743 transitions. Word has length 75 [2021-12-16 05:02:22,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:22,418 INFO L470 AbstractCegarLoop]: Abstraction has 9041 states and 12743 transitions. [2021-12-16 05:02:22,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 05:02:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 9041 states and 12743 transitions. [2021-12-16 05:02:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-16 05:02:22,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:22,423 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2021-12-16 05:02:22,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 05:02:22,424 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)] === [2021-12-16 05:02:22,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:22,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1249040640, now seen corresponding path program 1 times [2021-12-16 05:02:22,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:22,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092393020] [2021-12-16 05:02:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:22,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 05:02:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-16 05:02:22,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:22,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092393020] [2021-12-16 05:02:22,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092393020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:22,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:22,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:22,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738464176] [2021-12-16 05:02:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:22,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:22,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:22,704 INFO L87 Difference]: Start difference. First operand 9041 states and 12743 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 05:02:22,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:22,883 INFO L93 Difference]: Finished difference Result 9047 states and 12748 transitions. [2021-12-16 05:02:22,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:22,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2021-12-16 05:02:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:22,910 INFO L225 Difference]: With dead ends: 9047 [2021-12-16 05:02:22,910 INFO L226 Difference]: Without dead ends: 9045 [2021-12-16 05:02:22,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:22,915 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:22,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3986 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:22,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9045 states. [2021-12-16 05:02:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 9045. [2021-12-16 05:02:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 5990 states have (on average 1.3036727879799666) internal successors, (7809), 6257 states have internal predecessors, (7809), 2470 states have call successors, (2470), 583 states have call predecessors, (2470), 582 states have return successors, (2467), 2404 states have call predecessors, (2467), 2467 states have call successors, (2467) [2021-12-16 05:02:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12746 transitions. [2021-12-16 05:02:23,172 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12746 transitions. Word has length 80 [2021-12-16 05:02:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:23,172 INFO L470 AbstractCegarLoop]: Abstraction has 9045 states and 12746 transitions. [2021-12-16 05:02:23,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 05:02:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12746 transitions. [2021-12-16 05:02:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-16 05:02:23,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:23,174 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:23,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 05:02:23,175 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)] === [2021-12-16 05:02:23,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1487266301, now seen corresponding path program 1 times [2021-12-16 05:02:23,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:23,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100392960] [2021-12-16 05:02:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:23,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:02:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:02:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:02:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:02:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:02:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-16 05:02:23,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:23,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100392960] [2021-12-16 05:02:23,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100392960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:23,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:23,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:23,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098189637] [2021-12-16 05:02:23,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:23,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:23,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:23,381 INFO L87 Difference]: Start difference. First operand 9045 states and 12746 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 05:02:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:23,654 INFO L93 Difference]: Finished difference Result 13703 states and 19256 transitions. [2021-12-16 05:02:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2021-12-16 05:02:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:23,704 INFO L225 Difference]: With dead ends: 13703 [2021-12-16 05:02:23,705 INFO L226 Difference]: Without dead ends: 13701 [2021-12-16 05:02:23,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:23,713 INFO L933 BasicCegarLoop]: 4989 mSDtfsCounter, 3604 mSDsluCounter, 11949 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3611 SdHoareTripleChecker+Valid, 16938 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:23,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3611 Valid, 16938 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:23,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13701 states. [2021-12-16 05:02:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13701 to 13689. [2021-12-16 05:02:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13689 states, 9012 states have (on average 1.3021526853084775) internal successors, (11735), 9411 states have internal predecessors, (11735), 3730 states have call successors, (3730), 969 states have call predecessors, (3730), 944 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-16 05:02:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13689 states to 13689 states and 19244 transitions. [2021-12-16 05:02:24,268 INFO L78 Accepts]: Start accepts. Automaton has 13689 states and 19244 transitions. Word has length 96 [2021-12-16 05:02:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:24,268 INFO L470 AbstractCegarLoop]: Abstraction has 13689 states and 19244 transitions. [2021-12-16 05:02:24,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 05:02:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13689 states and 19244 transitions. [2021-12-16 05:02:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-16 05:02:24,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:24,270 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:24,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 05:02:24,271 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)] === [2021-12-16 05:02:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1541400626, now seen corresponding path program 1 times [2021-12-16 05:02:24,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:24,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862701886] [2021-12-16 05:02:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:24,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:02:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:02:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:02:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:02:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:02:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:02:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-16 05:02:24,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:24,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862701886] [2021-12-16 05:02:24,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862701886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:24,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:24,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:24,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413306663] [2021-12-16 05:02:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:24,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:24,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:24,486 INFO L87 Difference]: Start difference. First operand 13689 states and 19244 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 05:02:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:24,771 INFO L93 Difference]: Finished difference Result 13695 states and 19249 transitions. [2021-12-16 05:02:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:24,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2021-12-16 05:02:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:24,820 INFO L225 Difference]: With dead ends: 13695 [2021-12-16 05:02:24,820 INFO L226 Difference]: Without dead ends: 13693 [2021-12-16 05:02:24,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:24,828 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:24,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:24,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2021-12-16 05:02:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 13693. [2021-12-16 05:02:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 9015 states have (on average 1.3020521353300056) internal successors, (11738), 9414 states have internal predecessors, (11738), 3730 states have call successors, (3730), 970 states have call predecessors, (3730), 945 states have return successors, (3779), 3616 states have call predecessors, (3779), 3727 states have call successors, (3779) [2021-12-16 05:02:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 19247 transitions. [2021-12-16 05:02:25,254 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 19247 transitions. Word has length 101 [2021-12-16 05:02:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:25,255 INFO L470 AbstractCegarLoop]: Abstraction has 13693 states and 19247 transitions. [2021-12-16 05:02:25,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 05:02:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 19247 transitions. [2021-12-16 05:02:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 05:02:25,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:25,257 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2021-12-16 05:02:25,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 05:02:25,258 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:25,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2111075759, now seen corresponding path program 1 times [2021-12-16 05:02:25,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:25,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879375780] [2021-12-16 05:02:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:25,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 05:02:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 05:02:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 05:02:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-12-16 05:02:25,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:25,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879375780] [2021-12-16 05:02:25,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879375780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:25,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:25,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:25,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404896328] [2021-12-16 05:02:25,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:25,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:25,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:25,495 INFO L87 Difference]: Start difference. First operand 13693 states and 19247 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 05:02:25,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:25,884 INFO L93 Difference]: Finished difference Result 14389 states and 20024 transitions. [2021-12-16 05:02:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:25,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-12-16 05:02:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:25,929 INFO L225 Difference]: With dead ends: 14389 [2021-12-16 05:02:25,929 INFO L226 Difference]: Without dead ends: 14387 [2021-12-16 05:02:25,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:25,935 INFO L933 BasicCegarLoop]: 4051 mSDtfsCounter, 3897 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 12325 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:25,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3902 Valid, 12325 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-16 05:02:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14383. [2021-12-16 05:02:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14383 states, 9401 states have (on average 1.292309328794809) internal successors, (12149), 9801 states have internal predecessors, (12149), 3911 states have call successors, (3911), 1093 states have call predecessors, (3911), 1068 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-16 05:02:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14383 states to 14383 states and 20020 transitions. [2021-12-16 05:02:26,372 INFO L78 Accepts]: Start accepts. Automaton has 14383 states and 20020 transitions. Word has length 95 [2021-12-16 05:02:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:26,373 INFO L470 AbstractCegarLoop]: Abstraction has 14383 states and 20020 transitions. [2021-12-16 05:02:26,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 05:02:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 14383 states and 20020 transitions. [2021-12-16 05:02:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-16 05:02:26,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:26,377 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:26,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 05:02:26,377 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:26,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:26,377 INFO L85 PathProgramCache]: Analyzing trace with hash -402394414, now seen corresponding path program 1 times [2021-12-16 05:02:26,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:26,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970568449] [2021-12-16 05:02:26,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:26,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:02:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:02:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:02:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:02:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:02:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:02:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:02:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:02:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-12-16 05:02:26,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:26,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970568449] [2021-12-16 05:02:26,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970568449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:26,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:26,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:26,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653286109] [2021-12-16 05:02:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:26,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:26,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:26,606 INFO L87 Difference]: Start difference. First operand 14383 states and 20020 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 05:02:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:26,937 INFO L93 Difference]: Finished difference Result 14389 states and 20025 transitions. [2021-12-16 05:02:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:26,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2021-12-16 05:02:26,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:26,987 INFO L225 Difference]: With dead ends: 14389 [2021-12-16 05:02:26,987 INFO L226 Difference]: Without dead ends: 14387 [2021-12-16 05:02:26,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:26,996 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:26,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3974 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14387 states. [2021-12-16 05:02:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14387 to 14387. [2021-12-16 05:02:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14387 states, 9404 states have (on average 1.2922160782645682) internal successors, (12152), 9804 states have internal predecessors, (12152), 3911 states have call successors, (3911), 1094 states have call predecessors, (3911), 1069 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-16 05:02:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14387 states to 14387 states and 20023 transitions. [2021-12-16 05:02:27,599 INFO L78 Accepts]: Start accepts. Automaton has 14387 states and 20023 transitions. Word has length 111 [2021-12-16 05:02:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:27,599 INFO L470 AbstractCegarLoop]: Abstraction has 14387 states and 20023 transitions. [2021-12-16 05:02:27,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 05:02:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand 14387 states and 20023 transitions. [2021-12-16 05:02:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-16 05:02:27,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:27,602 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2021-12-16 05:02:27,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 05:02:27,603 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:27,603 INFO L85 PathProgramCache]: Analyzing trace with hash -464494577, now seen corresponding path program 1 times [2021-12-16 05:02:27,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:27,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929351191] [2021-12-16 05:02:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:27,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 05:02:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 05:02:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 05:02:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:02:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 05:02:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-16 05:02:27,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:27,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929351191] [2021-12-16 05:02:27,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929351191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:27,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:27,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:27,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87015378] [2021-12-16 05:02:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:27,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:27,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:27,801 INFO L87 Difference]: Start difference. First operand 14387 states and 20023 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 05:02:28,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:28,241 INFO L93 Difference]: Finished difference Result 14393 states and 20028 transitions. [2021-12-16 05:02:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:28,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2021-12-16 05:02:28,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:28,294 INFO L225 Difference]: With dead ends: 14393 [2021-12-16 05:02:28,295 INFO L226 Difference]: Without dead ends: 14391 [2021-12-16 05:02:28,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:28,305 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:28,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3981 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:28,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14391 states. [2021-12-16 05:02:28,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14391 to 14391. [2021-12-16 05:02:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14391 states, 9407 states have (on average 1.2921228872116508) internal successors, (12155), 9807 states have internal predecessors, (12155), 3911 states have call successors, (3911), 1095 states have call predecessors, (3911), 1070 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-16 05:02:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14391 states to 14391 states and 20026 transitions. [2021-12-16 05:02:28,989 INFO L78 Accepts]: Start accepts. Automaton has 14391 states and 20026 transitions. Word has length 105 [2021-12-16 05:02:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:28,990 INFO L470 AbstractCegarLoop]: Abstraction has 14391 states and 20026 transitions. [2021-12-16 05:02:28,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 05:02:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 14391 states and 20026 transitions. [2021-12-16 05:02:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-16 05:02:29,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:29,003 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:29,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 05:02:29,003 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1216027278, now seen corresponding path program 1 times [2021-12-16 05:02:29,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:29,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66069345] [2021-12-16 05:02:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:29,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 05:02:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 05:02:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 05:02:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 05:02:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 05:02:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 05:02:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 05:02:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 05:02:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 05:02:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 05:02:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-16 05:02:29,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:29,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66069345] [2021-12-16 05:02:29,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66069345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:29,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:29,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:29,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283047821] [2021-12-16 05:02:29,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:29,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:29,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:29,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:29,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:29,242 INFO L87 Difference]: Start difference. First operand 14391 states and 20026 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:29,601 INFO L93 Difference]: Finished difference Result 14397 states and 20031 transitions. [2021-12-16 05:02:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2021-12-16 05:02:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:29,775 INFO L225 Difference]: With dead ends: 14397 [2021-12-16 05:02:29,779 INFO L226 Difference]: Without dead ends: 14395 [2021-12-16 05:02:29,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:29,787 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3970 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:29,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3972 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14395 states. [2021-12-16 05:02:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14395 to 14395. [2021-12-16 05:02:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14395 states, 9410 states have (on average 1.292029755579171) internal successors, (12158), 9810 states have internal predecessors, (12158), 3911 states have call successors, (3911), 1096 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-16 05:02:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14395 states to 14395 states and 20029 transitions. [2021-12-16 05:02:30,370 INFO L78 Accepts]: Start accepts. Automaton has 14395 states and 20029 transitions. Word has length 121 [2021-12-16 05:02:30,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:30,371 INFO L470 AbstractCegarLoop]: Abstraction has 14395 states and 20029 transitions. [2021-12-16 05:02:30,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 14395 states and 20029 transitions. [2021-12-16 05:02:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-16 05:02:30,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:30,376 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 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] [2021-12-16 05:02:30,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 05:02:30,376 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:30,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1331395985, now seen corresponding path program 1 times [2021-12-16 05:02:30,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:30,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208508049] [2021-12-16 05:02:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:30,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 05:02:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 05:02:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 05:02:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:02:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 05:02:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 05:02:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 05:02:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-16 05:02:30,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:30,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208508049] [2021-12-16 05:02:30,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208508049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:30,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:30,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:30,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020614084] [2021-12-16 05:02:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:30,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:30,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:30,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:30,730 INFO L87 Difference]: Start difference. First operand 14395 states and 20029 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:31,129 INFO L93 Difference]: Finished difference Result 14401 states and 20034 transitions. [2021-12-16 05:02:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2021-12-16 05:02:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:31,189 INFO L225 Difference]: With dead ends: 14401 [2021-12-16 05:02:31,189 INFO L226 Difference]: Without dead ends: 14397 [2021-12-16 05:02:31,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:31,201 INFO L933 BasicCegarLoop]: 4015 mSDtfsCounter, 3978 mSDsluCounter, 8009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 12024 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:31,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3979 Valid, 12024 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14397 states. [2021-12-16 05:02:31,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14397 to 14397. [2021-12-16 05:02:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14397 states, 9412 states have (on average 1.2918614534636634) internal successors, (12159), 9811 states have internal predecessors, (12159), 3911 states have call successors, (3911), 1097 states have call predecessors, (3911), 1071 states have return successors, (3960), 3797 states have call predecessors, (3960), 3908 states have call successors, (3960) [2021-12-16 05:02:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14397 states to 14397 states and 20030 transitions. [2021-12-16 05:02:31,720 INFO L78 Accepts]: Start accepts. Automaton has 14397 states and 20030 transitions. Word has length 115 [2021-12-16 05:02:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:31,721 INFO L470 AbstractCegarLoop]: Abstraction has 14397 states and 20030 transitions. [2021-12-16 05:02:31,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 14397 states and 20030 transitions. [2021-12-16 05:02:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-16 05:02:31,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:31,726 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 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] [2021-12-16 05:02:31,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 05:02:31,726 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 490491264, now seen corresponding path program 1 times [2021-12-16 05:02:31,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:31,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152441494] [2021-12-16 05:02:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:31,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 05:02:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 05:02:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 05:02:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 05:02:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 05:02:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 05:02:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 05:02:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 05:02:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 05:02:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:31,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 05:02:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 05:02:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-12-16 05:02:32,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:32,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152441494] [2021-12-16 05:02:32,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152441494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:32,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:32,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 05:02:32,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955711285] [2021-12-16 05:02:32,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:32,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 05:02:32,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 05:02:32,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 05:02:32,016 INFO L87 Difference]: Start difference. First operand 14397 states and 20030 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-16 05:02:32,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:32,582 INFO L93 Difference]: Finished difference Result 16572 states and 22702 transitions. [2021-12-16 05:02:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 05:02:32,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2021-12-16 05:02:32,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:32,641 INFO L225 Difference]: With dead ends: 16572 [2021-12-16 05:02:32,641 INFO L226 Difference]: Without dead ends: 16468 [2021-12-16 05:02:32,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:32,652 INFO L933 BasicCegarLoop]: 4141 mSDtfsCounter, 3659 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 13294 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:32,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3659 Valid, 13294 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 05:02:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2021-12-16 05:02:33,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 12522. [2021-12-16 05:02:33,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 8234 states have (on average 1.2815156667476317) internal successors, (10552), 8551 states have internal predecessors, (10552), 3266 states have call successors, (3266), 1050 states have call predecessors, (3266), 1020 states have return successors, (3371), 3165 states have call predecessors, (3371), 3263 states have call successors, (3371) [2021-12-16 05:02:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 17189 transitions. [2021-12-16 05:02:33,124 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 17189 transitions. Word has length 120 [2021-12-16 05:02:33,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:33,125 INFO L470 AbstractCegarLoop]: Abstraction has 12522 states and 17189 transitions. [2021-12-16 05:02:33,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-16 05:02:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 17189 transitions. [2021-12-16 05:02:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-16 05:02:33,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:33,131 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 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] [2021-12-16 05:02:33,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 05:02:33,132 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 05:02:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:33,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1219142567, now seen corresponding path program 1 times [2021-12-16 05:02:33,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:33,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940070400] [2021-12-16 05:02:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:33,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 05:02:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:02:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:02:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 05:02:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 05:02:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-16 05:02:33,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:33,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940070400] [2021-12-16 05:02:33,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940070400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:33,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:33,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 05:02:33,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031498113] [2021-12-16 05:02:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:33,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 05:02:33,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 05:02:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 05:02:33,526 INFO L87 Difference]: Start difference. First operand 12522 states and 17189 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:37,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:37,426 INFO L93 Difference]: Finished difference Result 12831 states and 17677 transitions. [2021-12-16 05:02:37,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 05:02:37,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2021-12-16 05:02:37,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:37,479 INFO L225 Difference]: With dead ends: 12831 [2021-12-16 05:02:37,480 INFO L226 Difference]: Without dead ends: 12829 [2021-12-16 05:02:37,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-16 05:02:37,490 INFO L933 BasicCegarLoop]: 3828 mSDtfsCounter, 3748 mSDsluCounter, 8975 mSDsCounter, 0 mSdLazyCounter, 2858 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4123 SdHoareTripleChecker+Valid, 12803 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 2858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:37,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4123 Valid, 12803 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1498 Valid, 2858 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 05:02:37,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states. [2021-12-16 05:02:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12621. [2021-12-16 05:02:38,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12621 states, 8294 states have (on average 1.279479141548107) internal successors, (10612), 8617 states have internal predecessors, (10612), 3278 states have call successors, (3278), 1056 states have call predecessors, (3278), 1047 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-16 05:02:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12621 states to 12621 states and 17306 transitions. [2021-12-16 05:02:38,110 INFO L78 Accepts]: Start accepts. Automaton has 12621 states and 17306 transitions. Word has length 155 [2021-12-16 05:02:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:38,110 INFO L470 AbstractCegarLoop]: Abstraction has 12621 states and 17306 transitions. [2021-12-16 05:02:38,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 05:02:38,111 INFO L276 IsEmpty]: Start isEmpty. Operand 12621 states and 17306 transitions. [2021-12-16 05:02:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-16 05:02:38,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:38,118 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:38,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 05:02:38,119 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-12-16 05:02:38,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 630897392, now seen corresponding path program 1 times [2021-12-16 05:02:38,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:38,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5828058] [2021-12-16 05:02:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:38,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 05:02:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:02:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:02:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:02:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 05:02:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 05:02:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 05:02:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 05:02:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 05:02:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 05:02:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 05:02:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 05:02:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-16 05:02:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-16 05:02:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-16 05:02:38,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:38,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5828058] [2021-12-16 05:02:38,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5828058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:38,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:38,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 05:02:38,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960741514] [2021-12-16 05:02:38,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:38,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 05:02:38,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:38,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 05:02:38,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 05:02:38,472 INFO L87 Difference]: Start difference. First operand 12621 states and 17306 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-16 05:02:42,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:42,755 INFO L93 Difference]: Finished difference Result 12843 states and 17677 transitions. [2021-12-16 05:02:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 05:02:42,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 192 [2021-12-16 05:02:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:42,806 INFO L225 Difference]: With dead ends: 12843 [2021-12-16 05:02:42,806 INFO L226 Difference]: Without dead ends: 12841 [2021-12-16 05:02:42,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-16 05:02:42,815 INFO L933 BasicCegarLoop]: 4559 mSDtfsCounter, 3805 mSDsluCounter, 11356 mSDsCounter, 0 mSdLazyCounter, 3877 mSolverCounterSat, 1549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4332 SdHoareTripleChecker+Valid, 15915 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1549 IncrementalHoareTripleChecker+Valid, 3877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:42,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4332 Valid, 15915 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1549 Valid, 3877 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-16 05:02:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2021-12-16 05:02:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 12633. [2021-12-16 05:02:43,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12633 states, 8303 states have (on average 1.2791762013729977) internal successors, (10621), 8626 states have internal predecessors, (10621), 3278 states have call successors, (3278), 1059 states have call predecessors, (3278), 1050 states have return successors, (3416), 3186 states have call predecessors, (3416), 3275 states have call successors, (3416) [2021-12-16 05:02:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12633 states to 12633 states and 17315 transitions. [2021-12-16 05:02:43,651 INFO L78 Accepts]: Start accepts. Automaton has 12633 states and 17315 transitions. Word has length 192 [2021-12-16 05:02:43,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:43,652 INFO L470 AbstractCegarLoop]: Abstraction has 12633 states and 17315 transitions. [2021-12-16 05:02:43,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-16 05:02:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 12633 states and 17315 transitions. [2021-12-16 05:02:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-16 05:02:43,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:43,659 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:43,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 05:02:43,659 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-16 05:02:43,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:43,660 INFO L85 PathProgramCache]: Analyzing trace with hash -827996290, now seen corresponding path program 1 times [2021-12-16 05:02:43,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:43,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665655797] [2021-12-16 05:02:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:43,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 05:02:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 05:02:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 05:02:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 05:02:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 05:02:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 05:02:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 05:02:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 05:02:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 05:02:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 05:02:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 05:02:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-16 05:02:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-16 05:02:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 05:02:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 05:02:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 05:02:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-16 05:02:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-16 05:02:43,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:43,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665655797] [2021-12-16 05:02:43,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665655797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:43,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:43,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 05:02:43,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756513805] [2021-12-16 05:02:43,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:43,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 05:02:43,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 05:02:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 05:02:43,969 INFO L87 Difference]: Start difference. First operand 12633 states and 17315 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-16 05:02:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 05:02:54,943 INFO L93 Difference]: Finished difference Result 16962 states and 24872 transitions. [2021-12-16 05:02:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-16 05:02:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 187 [2021-12-16 05:02:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 05:02:54,996 INFO L225 Difference]: With dead ends: 16962 [2021-12-16 05:02:54,996 INFO L226 Difference]: Without dead ends: 16907 [2021-12-16 05:02:55,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2021-12-16 05:02:55,007 INFO L933 BasicCegarLoop]: 4018 mSDtfsCounter, 4096 mSDsluCounter, 13267 mSDsCounter, 0 mSdLazyCounter, 9923 mSolverCounterSat, 4301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4345 SdHoareTripleChecker+Valid, 17285 SdHoareTripleChecker+Invalid, 14224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4301 IncrementalHoareTripleChecker+Valid, 9923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-16 05:02:55,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4345 Valid, 17285 Invalid, 14224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4301 Valid, 9923 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2021-12-16 05:02:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16907 states. [2021-12-16 05:02:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16907 to 8918. [2021-12-16 05:02:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8918 states, 5898 states have (on average 1.28195998643608) internal successors, (7561), 6131 states have internal predecessors, (7561), 2266 states have call successors, (2266), 714 states have call predecessors, (2266), 752 states have return successors, (2515), 2243 states have call predecessors, (2515), 2266 states have call successors, (2515) [2021-12-16 05:02:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8918 states to 8918 states and 12342 transitions. [2021-12-16 05:02:55,590 INFO L78 Accepts]: Start accepts. Automaton has 8918 states and 12342 transitions. Word has length 187 [2021-12-16 05:02:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 05:02:55,591 INFO L470 AbstractCegarLoop]: Abstraction has 8918 states and 12342 transitions. [2021-12-16 05:02:55,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-16 05:02:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8918 states and 12342 transitions. [2021-12-16 05:02:55,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-16 05:02:55,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 05:02:55,599 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 05:02:55,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 05:02:55,599 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2021-12-16 05:02:55,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 05:02:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1899381868, now seen corresponding path program 1 times [2021-12-16 05:02:55,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 05:02:55,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145926870] [2021-12-16 05:02:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 05:02:55,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 05:02:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 05:02:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 05:02:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 05:02:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 05:02:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 05:02:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 05:02:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 05:02:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 05:02:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 05:02:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 05:02:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 05:02:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 05:02:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 05:02:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 05:02:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 05:02:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 05:02:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 05:02:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-16 05:02:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-16 05:02:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 05:02:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 05:02:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-16 05:02:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 05:02:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 05:02:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-16 05:02:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 05:02:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-16 05:02:55,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 05:02:55,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145926870] [2021-12-16 05:02:55,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145926870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 05:02:55,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 05:02:55,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 05:02:55,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182968669] [2021-12-16 05:02:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 05:02:55,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 05:02:55,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 05:02:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 05:02:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 05:02:55,895 INFO L87 Difference]: Start difference. First operand 8918 states and 12342 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30)